CN104477841A - Method using high phosphorous ore reduction exhaust gas to make methanol - Google Patents
Method using high phosphorous ore reduction exhaust gas to make methanol Download PDFInfo
- Publication number
- CN104477841A CN104477841A CN201410652041.9A CN201410652041A CN104477841A CN 104477841 A CN104477841 A CN 104477841A CN 201410652041 A CN201410652041 A CN 201410652041A CN 104477841 A CN104477841 A CN 104477841A
- Authority
- CN
- China
- Prior art keywords
- gas
- reduction
- waste gas
- carbon monoxide
- reduction waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Catalysts (AREA)
Abstract
The embodiment of the invention discloses a method using high phosphorous ore reduction exhaust gas to make methanol, and the method is as follows: using a reducing gas for reduction of high phosphorus ore to produce high phosphorus iron and reduction exhaust gas, the reduction exhaust gas is a gas mixture of carbon dioxide and carbon monoxide with the content ratio of 0.8-1; the water gas reaction of the reduction exhaust gas is performed, the carbon dioxide in the reduction exhaust gas is transformed into carbon monoxide and hydrogen to produce a mixed gas; by gas distribution of the mixed gas, gas with the content ratio of carbon monoxide to hydrogen of 0.95-1.05 is produced, and a catalyst is added into the gas to produce methanol. The method solves the problem of a large number of environment pollution for the reason that in the prior art after simple processing, the exhaust gas produced by high phosphorous ore reduction process is directly discharged into the atmosphere, and technical results of environmentally friendly development of high phosphorus ore can be achieved.
Description
Technical field
The present invention relates to ironmaking technology field, particularly relate to a kind of method utilizing high Phosphate ore reduction waste gas to manufacture methyl alcohol.
Background technology
China's height phosphorus ore storage amount is larger, domestic reserves estimate at 10,000,000,000 tons, only the explored high phosphorus ore storage amount in western Hubei Province just has 2,200,000,000 tons, the identified high-phosphorus hematite in Enshi has 19 places, wherein large ore deposit 2 place, medium-sized mineral deposit 9 place, add up to verify iron ore resource reserves 13.85 hundred million tons, the exploitation of high phosphorus ore are significant to development of the West Regions.
According to country " mine ecological environment qrotection and pollution prevention technique policy " and relevant development of the West Regions policy, the exploitation of Mineral resources should implement that " prevention and cure of pollution and ecological environmental protection are laid equal stress on, and ecological environmental protection and improvement of the ecological environment develop simultaneously; And put prevention first, prevent and treat combination, process control, the comprehensive regulation " guilding principle.Therefore; capture restriction high-phosphorus hematite development of resources and the gordian technique that develops in harmony of ecological environmental protection; ensure the efficiency utilization of high-phosphorus hematite resource; promoting mining area " people, development of resources and natural harmony are got along ", being of great practical significance and science and technology support effect to effectively utilizing high phosphate rock resource.
But high phosphorus ore, because of the mineral structure of its uniqueness, except producing except mine tailing, waste water in recovery process, also can produce a large amount of waste residues, waste gas in reduction process.So be badly in need of carrying out harmless treatment to relevant reduzate, high Phosphate ore reduction directly produces three kinds of products, one is reduced iron, one is reducing slag, and one is reducing gas, and reduced iron may be used for producing high-abrasive material, reducing slag can be used for producing slag micropowder, and reducing gas is mostly after burning dedusting, is directly discharged in air through simple process, greatly increases the discharge of greenhouse gases.
As can be seen here, the waste gas produced in high phosphorus ore reduction process is directly discharged in air after simple process, can produce a large amount of pollutions to environment.
Summary of the invention
The embodiment of the present invention provides a kind of method utilizing high Phosphate ore reduction waste gas to manufacture methyl alcohol, is directly discharged in air, environment is produced to the technical problem of a large amount of pollutions to solve the waste gas produced in high phosphorus ore reduction process in prior art after simple process.
The embodiment of the present application provides following technical scheme:
Utilize high Phosphate ore reduction waste gas to manufacture a method for methyl alcohol, comprising:
Use reducing gas to reduce to high phosphorus ore, generate high ferrophosphorus and reduction waste gas, wherein, described reduction waste gas is the ratio range of carbon dioxide content and carbon monoxide content is the mixed gas of 0.8-1;
Water-gas reaction is carried out to described reduction waste gas, is carbon monoxide and hydrogen by the carbon dioxide conversion in reduction waste gas, generates gas mixture;
Carry out distribution to described gas mixture, the ratio range generating carbon monoxide content and hydrogen content is the coal gas of 0.95-1.05;
Catalyst preparing methyl alcohol is added in described coal gas.
Optionally, the ratio of described reduction carbon dioxide in waste gas content and carbon monoxide content is 1.
Optionally, describedly carry out distribution to described gas mixture, generating carbon monoxide content with the ratio range of hydrogen content is the coal gas of 0.95-1.05, is specially: carry out distribution to described gas mixture, and the ratio of generation carbon monoxide content and hydrogen content is the coal gas of 1.
Optionally, described water-gas reaction is carried out to described reduction waste gas after, also comprise: cool described coal gas; Desulfurization, de-benzene and detar process are carried out to cooled coal gas.
Optionally, described distribution is carried out to described gas mixture after, also comprise: in described coal gas, add carbonic acid gas.
Optionally, described catalyzer is specially: any one or multiple combination in cupric oxide, zinc oxide and zirconium dioxide.
Optionally, described use reducing gas is reduced to high phosphorus ore, generates high ferrophosphorus and reduction waste gas, is specially: the reducing gas using gas maked coal technology to produce in shaft furnace is reduced to described high phosphorus ore, generate high ferrophosphorus, reduction waste gas and reducing slag.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
What 1, the embodiment of the present application provided utilizes high Phosphate ore reduction waste gas to manufacture the method for methyl alcohol, be the raw material of manufacture methyl alcohol by the reduction exhaust gas conversion high phosphorus ore being carried out to reduction generation by the step such as water-gas reaction and distribution, avoid and reduction waste gas is entered in air the pollution that environment produces, achieve the zero release of waste gas, achieve the technique effect of the high phosphorus ore of reduction of environmental protection.
What 2, the embodiment of the present application provided utilizes high Phosphate ore reduction waste gas to manufacture the method for methyl alcohol, do not need to prepare carbon monoxide or carbonic acid gas specially, use reduction waste gas to manufacture methyl alcohol, decrease the cost manufacturing methyl alcohol, improve the additional economic benefit of high Phosphate ore reduction.
What 3, the embodiment of the present application provided utilizes high Phosphate ore reduction waste gas to manufacture the method for methyl alcohol, its water-gas reaction adopted steadily, safety and be easy to control, this reaction can by controlling temperature of reaction, controlling Rich Oxygen Amount, controlling the carrying out that coal dust addition controls water-gas chemical reaction, and whole Production Flow Chart is safe and reliable.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the schema utilizing high Phosphate ore reduction waste gas to manufacture the method for methyl alcohol in the embodiment of the present invention;
Fig. 2 reduces the process flow sheet of high phosphorus ore in the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of method utilizing high Phosphate ore reduction waste gas to manufacture methyl alcohol, is directly discharged in air, environment is produced to the technical problem of a large amount of pollutions to solve the waste gas produced in high phosphorus ore reduction process in prior art after simple process.
In order to solve the technical problem that above-mentioned prior art exists, the general thought of the technical scheme that the embodiment of the present application provides is as follows:
Use reducing gas to reduce to high phosphorus ore, generate high ferrophosphorus and reduction waste gas, wherein, described reduction waste gas is the ratio range of carbon dioxide content and carbon monoxide content is the mixed gas of 0.8-1;
Water-gas reaction is carried out to described reduction waste gas, is carbon monoxide and hydrogen by the carbon dioxide conversion in reduction waste gas, generates gas mixture;
Carry out distribution to described gas mixture, the ratio range generating carbon monoxide content and hydrogen content is the coal gas of 0.95-1.05;
Catalyst preparing methyl alcohol is added in described coal gas.
Can be found out by foregoing, be the raw material of manufacture methyl alcohol by the reduction exhaust gas conversion high phosphorus ore being carried out to reduction generation by the step such as water-gas reaction and distribution, avoid by reduction waste gas enter in air to environment produce pollution, achieve the technique effect of the high phosphorus ore of reduction of environmental protection.Further, owing to not needing to prepare carbon monoxide or carbonic acid gas specially, and use reduction waste gas to manufacture methyl alcohol, decrease the cost manufacturing methyl alcohol, improve economic benefit.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical solution of the present invention, instead of the restriction to technical solution of the present invention, when not conflicting, the technical characteristic in the embodiment of the present invention and embodiment can combine mutually.
In the embodiment of the present application, provide a kind of method utilizing high Phosphate ore reduction waste gas to manufacture methyl alcohol, please refer to Fig. 1, Fig. 1 is the schema utilizing high Phosphate ore reduction waste gas to manufacture the method for methyl alcohol in the embodiment of the present invention, and described method comprises:
Step S101, uses reducing gas to reduce to high phosphorus ore, and generate high ferrophosphorus and reduction waste gas, wherein, described reduction waste gas is the ratio range of carbon dioxide content and carbon monoxide content is the mixed gas of 0.8-1;
Step S102, carries out water-gas reaction to described reduction waste gas, is carbon monoxide and hydrogen, generates gas mixture by the carbon dioxide conversion in reduction waste gas;
Step S103, carries out distribution to described gas mixture, and the ratio range generating carbon monoxide content and hydrogen content is the coal gas of 0.95-1.05;
Step S104, adds catalyst preparing methyl alcohol in described coal gas.
Below in conjunction with the complete process flow of the high phosphorus ore of reduction, the above-mentioned method utilizing high Phosphate ore reduction waste gas to manufacture methyl alcohol is described in detail:
Please refer to Fig. 2, Fig. 2 reduces the process flow sheet of high phosphorus ore in the embodiment of the present invention.
As shown in Figure 2, first, gas maked coal technology production reducing gas is utilized.
Specifically, namely by oxygenerator, coal dust crusher, Condensed transportation machine and Coalblowing system, purity oxygen and coal dust are input in gasification burner, make coal dust gasification thus produce the reducing gas of high Phosphate ore reduction, also can generating portion combustion residue while generation reducing gas, these waste residues together can process together with high phosphorus ore reducing slag, for the production of slag micropowder, as the addition material of cement.If the productive target of high ferrophosphorus is annual output 200000 tons, then the Miniature oxygenerator of a set of 5 ten thousand steres per hour can meet production requirement, and coal dust can select high volatilization fine coal, and coal dust crusher can adopt medium speed mill.
Next, high Phosphate ore reduction is carried out.
Namely perform step S101, use reducing gas to reduce to high phosphorus ore, generate high ferrophosphorus and reduction waste gas, wherein, described reduction waste gas is the ratio range of carbon dioxide content and carbon monoxide content is the mixed gas of 0.8-1.
Specifically, by in the reducing gas input shaft furnace that gas maked coal technology is produced, utilize reducing gas to carry out direct-reduction to the high phosphorus ore in shaft furnace, described high phosphorus ore does not need through falling phosphorus process, just can directly reduce in shaft furnace, reduzate has high ferrophosphorus, reduction waste gas and reducing slag.Described reduction waste gas is the gas mixture of carbon monoxide and carbonic acid gas.Same with the productive target of high ferrophosphorus for producing 200000 tons per year, then need the high Rock Phosphate (72Min BPL) about 400,000 tons of grade about 50%, high phosphorus ore ball can adopt interior mixed carbon comtent at the pelletizing of 1%-5%, is made by disk pelletizing or roll-in pelletizing.
In specific implementation process, the high ferrophosphorus that high Phosphate ore reduction generates can be produced into cast iron by high frequency induction furnace, produces high-abrasive material and extraordinary mould material after building.Reducing slag and the combustion residue generated in gas maked coal process can together with produce as slag micropowder, to use as cement aggregate.
Preferably, the ratio of described reduction carbon dioxide in waste gas content and carbon monoxide content is 1, to ensure the high utilization rate of described reduction waste gas for the production of methyl alcohol.
Subsequently, water-gas reaction is carried out to reduction waste gas.
Namely carry out step S102, water-gas reaction is carried out to described reduction waste gas, be carbon monoxide and hydrogen by the carbon dioxide conversion in reduction waste gas, generate gas mixture.
In specific implementation process, carry out water-gas reaction to reduction waste gas, the carbonic acid gas in reduction waste gas all can be converted into carbon monoxide and hydrogen, concrete reactive chemistry formula is as follows:
CO
2+H
2O→CO+H
2+O
2,△H＝-525.4kJ/mol
O
2+C→CO,△H＝125.5kJ/mol
Wherein, described △ H is heat of reaction.
Specifically, before water-gas reaction is carried out to reduction waste gas, dedusting can also be carried out to reduction waste gas, spray adding system, coal dust add-on system, oxygen add-on system and temperature controlling system by water smoke again and ensure carrying out smoothly of water-gas reaction, and regularly the burning slag of water-gas reaction is emitted.
Subsequently, by primary cooler, the gas mixture after water-gas reaction is cooled, and desulfurization, de-benzene and detar process are carried out to cooled coal gas, purification gas mixture.
Then, distribution is carried out.
Namely perform step S103, carry out distribution to described gas mixture, the ratio range generating carbon monoxide content and hydrogen content is the coal gas of 0.95-1.05.
Preferably, carry out distribution to described gas mixture, the ratio generating carbon monoxide content and hydrogen content is the coal gas of 1, to improve the purity of the methyl alcohol prepared with described coal gas.
In the embodiment of the present application, described distribution is carried out to described gas mixture after, also comprise:
In described coal gas, add carbonic acid gas, prepare the efficiency of methyl alcohol with catalysis with the coal gas prepared.
Finally, methyl alcohol is prepared.
Namely perform step S104, in described coal gas, add catalyst preparing methyl alcohol.
In specific implementation process, described catalyzer can be selected according to actual needs, is specifically as follows: any one or multiple combination in cupric oxide, zinc oxide and zirconium dioxide.
In the embodiment of the present application, described catalyzer is the catalyzer of CuO-ZnO-ZrO2 series.
The concrete reactive chemistry formula preparing methyl alcohol with the coal gas prepared is as follows:
CO+2H
2→CH
3OH,△H＝-90kJ/mol。
Although owing to being brand-new with the technical process of high phosphorus ore reducing gas methanol, but the links comparative maturity in this flow process, especially be ripe with the technical process of carbon monoxide and hydrogen gas production methyl alcohol, there is not the technology barrier being difficult to go beyond, there is not the equipment requirements being difficult to realize, be beneficial to the foundation of whole methanol production system yet.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
What 1, the embodiment of the present application provided utilizes high Phosphate ore reduction waste gas to manufacture the method for methyl alcohol, be the raw material of manufacture methyl alcohol by the reduction exhaust gas conversion high phosphorus ore being carried out to reduction generation by the step such as water-gas reaction and distribution, avoid and reduction waste gas is entered in air the pollution that environment produces, achieve the zero release of waste gas, achieve the technique effect of the high phosphorus ore of reduction of environmental protection.
What 2, the embodiment of the present application provided utilizes high Phosphate ore reduction waste gas to manufacture the method for methyl alcohol, do not need to prepare carbon monoxide or carbonic acid gas specially, use reduction waste gas to manufacture methyl alcohol, decrease the cost manufacturing methyl alcohol, improve the additional economic benefit of high Phosphate ore reduction.
What 3, the embodiment of the present application provided utilizes high Phosphate ore reduction waste gas to manufacture the method for methyl alcohol, its water-gas reaction adopted steadily, safety and be easy to control, this reaction can by controlling temperature of reaction, controlling Rich Oxygen Amount, controlling the carrying out that coal dust addition controls water-gas chemical reaction, and whole Production Flow Chart is safe and reliable.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. utilize high Phosphate ore reduction waste gas to manufacture a method for methyl alcohol, it is characterized in that, comprising:
Use reducing gas to reduce to high phosphorus ore, generate high ferrophosphorus and reduction waste gas, wherein, described reduction waste gas is the ratio range of carbon dioxide content and carbon monoxide content is the mixed gas of 0.8-1;
Carrying out water-gas reaction to described reduction waste gas, is carbon monoxide and hydrogen by the carbon dioxide conversion in described reduction waste gas, generates gas mixture;
Carry out distribution to described gas mixture, the ratio range generating carbon monoxide content and hydrogen content is the coal gas of 0.95-.051;
Catalyst preparing methyl alcohol is added in described coal gas.
2. the method for claim 1, is characterized in that, the ratio of described reduction carbon dioxide in waste gas content and carbon monoxide content is 1.
3. the method for claim 1, is characterized in that, describedly carries out distribution to described gas mixture, and the ratio range generating carbon monoxide content and hydrogen content is the coal gas of 0.95-1.05, is specially:
Carry out distribution to described gas mixture, the ratio generating carbon monoxide content and hydrogen content is the coal gas of 1.
4. the method for claim 1, is characterized in that, described water-gas reaction is carried out to described reduction waste gas after, also comprise:
Cool described coal gas;
Desulfurization, de-benzene and detar process are carried out to cooled coal gas.
5. the method for claim 1, is characterized in that, described distribution is carried out to described gas mixture after, also comprise:
Carbonic acid gas is added in described coal gas.
6. the method for claim 1, is characterized in that, described catalyzer is specially:
Any one or multiple combination in cupric oxide, zinc oxide and zirconium dioxide.
7. the method as described in as arbitrary in claim 1-6, it is characterized in that, described use reducing gas is reduced to high phosphorus ore, generates high ferrophosphorus and reduction waste gas, is specially:
The reducing gas using gas maked coal technology to produce in shaft furnace is reduced to described high phosphorus ore, generates high ferrophosphorus, reduction waste gas and reducing slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652041.9A CN104477841A (en) | 2014-11-17 | 2014-11-17 | Method using high phosphorous ore reduction exhaust gas to make methanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652041.9A CN104477841A (en) | 2014-11-17 | 2014-11-17 | Method using high phosphorous ore reduction exhaust gas to make methanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104477841A true CN104477841A (en) | 2015-04-01 |
Family
ID=52752487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410652041.9A Pending CN104477841A (en) | 2014-11-17 | 2014-11-17 | Method using high phosphorous ore reduction exhaust gas to make methanol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104477841A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101723812A (en) * | 2009-09-03 | 2010-06-09 | 昆明理工大学 | Method for preparing dimethyl ether by utilizing tail gas discharged by melting reduction ironmaking |
| CN102264679A (en) * | 2008-12-22 | 2011-11-30 | 国际壳牌研究有限公司 | Process to prepare methanol and/or dimethylether |
| CN103764854A (en) * | 2011-08-31 | 2014-04-30 | 西门子Vai金属科技有限责任公司 | Method for treating waste gases from plants for pig iron production and/or synthesis gas |
-
2014
- 2014-11-17 CN CN201410652041.9A patent/CN104477841A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264679A (en) * | 2008-12-22 | 2011-11-30 | 国际壳牌研究有限公司 | Process to prepare methanol and/or dimethylether |
| CN101723812A (en) * | 2009-09-03 | 2010-06-09 | 昆明理工大学 | Method for preparing dimethyl ether by utilizing tail gas discharged by melting reduction ironmaking |
| CN103764854A (en) * | 2011-08-31 | 2014-04-30 | 西门子Vai金属科技有限责任公司 | Method for treating waste gases from plants for pig iron production and/or synthesis gas |
Non-Patent Citations (4)
| Title |
|---|
| 刘源等: "铜基/氧化锆合成甲醇催化剂进展", 《天然气化工》 * |
| 张兴晶等: "《化工基础原料》", 31 March 2014 * |
| 彭建喜: "《煤气化制甲醇技术》", 30 September 2010 * |
| 贺永德: "《现代煤化工技术手册 第二版》", 31 March 2011 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2709323C1 (en) | Complex of plants for steel making and method of operating complex of plants | |
| RU2670822C9 (en) | Combined system for producing steel and method for operating combined system | |
| CN102010924B (en) | Method for producing directly reduced iron from coal | |
| CN103146866B (en) | Direct reduction process for sponge iron production implemented by using non-catalytic conversion of CH4 | |
| CN109607491B (en) | Method for preparing sulfuric acid from desulfurized fly ash | |
| Li et al. | Quantifying the energy saving potential and environmental benefit of hydrogen-based steelmaking process: status and future prospect | |
| CN110404936B (en) | Comprehensive treatment method for semi-dry desulfurized fly ash | |
| Sui et al. | Current situation and development prospects of metallurgical by-product gas utilization in China's steel industry | |
| CN100575249C (en) | The method of preparing phosphorus pentoxide by combustion dynamic wave | |
| CN103818884B (en) | The spouted fluidized decomposition technique of a kind of gypsum | |
| KR101998733B1 (en) | Apparatus for manufacturing molten iron and method for manufacturing thereof | |
| Liu et al. | Advances on resource utilization of semi-dry desulfurization ash by thermal decomposition: a high-efficiency and low-temperature method for large-scale processing | |
| CN104776727A (en) | Efficient purifying method for exhausted tail gases from firing of gangue baked bricks in portable tunnel kiln | |
| CN106007518B (en) | The processing unit and processing method of a kind of Desulphurization | |
| CN104477841A (en) | Method using high phosphorous ore reduction exhaust gas to make methanol | |
| CN102268311A (en) | Coal-burning sulfur-fixing catalytic combustion compound additive and preparation method thereof | |
| Wang et al. | Resource utilization of gasified fine ash from entrained flow bed via thermal modification-melting combustion: A pilot study | |
| CN114525518B (en) | Method for utilizing renewable energy source electricity | |
| CN101559930B (en) | Discarded gypsum kinetic wave sulfuric acid production process method and execution device thereof | |
| Zhang et al. | Sulfur migration behavior in sintering and pelletizing processes: A review | |
| Grema et al. | Carbon emission control measures | |
| CN104962319A (en) | Method of utilizing waste heat of copper slag molten reduction iron smelting tailings to catalyze coal pyrolysis and gasification | |
| Song et al. | Analysis on energy-saving and CO 2 emissions reduction in BOF steelmaking by substituting limestone for lime to slag | |
| CN101643221A (en) | Joint production process of synthesis ammonia and methanol employing coke oven gas and blast furnace gas | |
| CN101492175A (en) | Method for decomposing phosphogypsum with high sulfur refinery coke and coal gangue |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |
|
| RJ01 | Rejection of invention patent application after publication |