CN105754606A - Spherical soil conditioner and production process thereof - Google Patents
Spherical soil conditioner and production process thereof Download PDFInfo
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- CN105754606A CN105754606A CN201610121481.0A CN201610121481A CN105754606A CN 105754606 A CN105754606 A CN 105754606A CN 201610121481 A CN201610121481 A CN 201610121481A CN 105754606 A CN105754606 A CN 105754606A
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- soil conditioner
- spherical
- ammonium sulfate
- industrial residue
- spherical soil
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/04—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only applied in a physical form other than a solution or a grout, e.g. as granules or gases
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/06—Calcium compounds, e.g. lime
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a spherical soil conditioner and a new production process thereof, and belongs to the technical field of agricultural chemistry. The method comprises: mixing and reacting sulfuric acid and liquid ammonia according to a weight ratio of 1:2.1 by taking an industrial waste residue containing calcium carbonate and generated by industrial production as a raw material to obtain ammonium sulfate; and mixing the obtained ammonium sulfate with the industrial waste residue and urea in a uniform mixing machine at room temperature according to a weight ratio of 3:100:10, then performing granulation in a tubular reactor, and performing continuous processes of drying, screening, cooling, fine screening, hoisting, packaging and the like to produce the spherical soil conditioner taking calcium carbonate as the main component. Compared with a powdery soil conditioner, the spherical soil conditioner produced by using the production process is superior to the powdery soil conditioner in the main technical indexes of calcium content, pH value and the like, and the spherical soil conditioner is high in disintegrating speed and uniform in particle, can be used singly or mixed with other fertilizers to perform mechanical sowing, is easy to use, and is high in utilization rate.
Description
Technical field
The present invention relates to a kind of spherical soil conditioner and production new technique thereof, relate generally to a kind of utilize decomposing phosphorite by using nitric acid slag produce spherical soil conditioner and production technology, belong to agrochemical product technical field.
Background technology
Soil acidity or alkalinity is divided into Pyatyi by China: highly acid soil (pH value is less than 5), acid soil (pH:5.0-6.5), neutral soil (pH:6.5-7.5), alkaline soil (pH:7.5-8.5), strongly alkaline soil (pH value is more than 8.5).China's soil pH value scope is relatively wide, and pH value is incremented by from south to north.The Changjiang river areas to the south mostly is strong acid and acid ground, and soil and sea, coastal area that only the parent rock of calcium carbonate is grown rush in parent rock situation, and soil is in neutral or alkalescence.Being distributed widely in south China, the red soil of southwest, yellow earth, pH value is mostly between 4.5～5.5；The red soil of East China, Central China, pH value is between 5.5～6.5；North of Yangtze River Soils In The Region mostly is neutral and alkaline, and only Forestland and grassland is with under acid parent rock, and soil is in acidity, and the pH value such as North China, northwest soil is typically between 7.5 ~ 8.5, and the pH value of minority strong basicity soil is up to 10.5.But, owing to using chemical fertilizer throughout the year so that soils of north China pH value significantly improves, had a strong impact on the growth of crops.
Soil acidity or alkalinity regulates the way taked and is usually: 1, use Calx or plant ash that acid ground is adjusted.2, use the materials such as Gypsum Fibrosum, aluminum sulfate, ferrous sulfate or humic acid that basic soil is adjusted.Soil conditioner, rich in organic and humic acid, has significant " water conservation, weight gaining and ventilative " three big soil conditioning functions.It can strengthen disease-resistant crops ability, improves crops survival rate and yield, improves agriculture and forestry product quality and recovers crops original ecological.Therefore the fields such as soil improvement, desert treatment and drought-resistant water-preserving it are widely used in.Soil conditioner source is more, and some natural minerals, agricultural wastes, industry byproduct, organic fertilizer, city and domestic refuse, biomass and artificial polymer etc. may be used to the production of soil conditioner, and therefore its composition is also sufficiently complex.
Although the effect of soil conditioner improvement soil is clearly, act on also very many, but, at present, the soil conditioner being main component with calcium carbonate in the world is all powdery product, it is impossible to pelletize.There is following subject matter in this powder product: (1) powder is unfavorable for mechanized farming in actual use.(2) sow and process very easily causes air-powder pollute.(3) when individually using cumbersome and time consuming, cause use cost to improve, peasant be unwilling use.It addition, the water content of powder product is generally less than equal to 0.6%, cause product calcium content relatively on the low side.
Industrial, utilize decomposing phosphorite by using nitric acid to produce the technique highly developed (see Fig. 1) of phosphate fertilizer.But, this traditional handicraft can produce to contain in a large number the waste residue of calcium carbonate, and these waste residues accumulate over a long period and have resulted in serious pollution.It was verified that these waste residues are carried out harmless treatment had resulted in the waste of mass energy and fund.In the today advocating energy-conserving and environment-protective, it is urgent problem in actual production process that these industrial wastes carry out efficient refuse reclamation.With it for raw material, it is made into spherical soil conditioner, overcomes Powdered soil conditioner defect, will have good market prospect, have no pertinent literature report at present.
Summary of the invention
Present invention aim at providing a kind of utilization to produce spherical soil conditioner and production new technique thereof with the industrial residue that calcium carbonate is main component, it is achieved refuse reclamation, the saving energy, reduce and pollute, reduce production cost, convenient use.
For realizing the purpose of the present invention, a kind of industrial residue calciferous is recycled by the present invention, produce a kind of spherical soil conditioner being main component with calcium carbonate, the industrial residue originally carrying out harmless treatment is applied to spherical soil conditioner as raw material and prepares.
Concrete technical scheme is as follows.
Mass percent 98% sulphuric acid and mass percent 97% liquefied ammonia are pressed the part by weight at room temperature hybrid reaction of 1:2.1, obtains ammonium sulfate；After the ammonium sulfate obtained is mixed according to the part by weight of 3:100:10 with industrial residue and carbamide under mixing machine room temperature, in 100oC-200oCAt temperature, pelletize in tubular reactor, then through drying (150oC), screening, cooling (air-cooled), fine screen, the continuous print course of processing such as lifting and packaging, produce the spherical soil conditioner being main component with calcium carbonate, granularity is between 3-4mm.
Described industrial residue is that decomposing phosphorite by using nitric acid produces the industrial residue being main component with calcium carbonate produced in phosphate fertilizer process.
This spherical soil conditioner in soil can fater disintegration, the calcium carbonate powder of release can with soil effect, and liberated heat can promote again the root system fast-growth of plant, uses soil conditioner and changes soil acidity or alkalinity and the principle that releases energy is as follows.
Compared with powdery soil conditioner, the key technical indexes such as the calcium cellulose content and the pH value that use this explained hereafter spherical soil conditioner out are better than powdery soil conditioner, and disintegration rate fast (in water complete disintegrate in 3 minutes), granule is uniform, can individually or mix with other fertilizer and carry out mechanization and sow, it is easy to use and utilization rate is high.
Innovative point of the present invention is in that: 1, with the industrial residue containing calcium carbonate for raw material, it is achieved that the recycling of refuse, reduces pollution, is conducive to environmental conservation.2, the spherical soil conditioner being main component with calcium carbonate is prone to mechanization and sows, and using thus realizing spread, overcoming and individually using the drawback that cost is high.3, air will not be caused powder contamination by spherical soil conditioner.4, spherical soil conditioner water content is generally less than equal to 0.3%, improves the relative amount of calcium and nitrogen.
Accompanying drawing explanation
Fig. 1 is that prior art decomposing phosphorite by using nitric acid produces phosphate fertilizer technological process schematic diagram.
Fig. 2 is the present invention spherical soil conditioner production new technique flow process schematic diagram.
Detailed description of the invention
For the present invention is better described, as follows for embodiment.
Embodiment 1
Spherical soil conditioner of the present invention is prepared via a method which to form.
Mass percent 98% sulphuric acid and mass percent 97% liquefied ammonia are pressed the part by weight at room temperature hybrid reaction of 1:2.1, obtains ammonium sulfate；After the ammonium sulfate obtained is mixed according to the part by weight of 3:100:10 with industrial residue and carbamide under mixing machine room temperature, in 100oC-200oCAt temperature, pelletize in tubular reactor, then through drying (150oC), screening, cooling (air-cooled), fine screen, lifting and the packaging continuous print course of processing, produce the spherical soil conditioner being main component with calcium carbonate, granularity is between 3-4mm.
Described industrial residue is that decomposing phosphorite by using nitric acid produces the industrial residue being main component with calcium carbonate produced in phosphate fertilizer process.
The every concrete index of the spherical soil conditioner that the present invention produces please for details see attached table one.
Table one, spherical soil conditioner the key technical indexes
The technology of the present invention technique is adopted both to achieve refuse reclamation, energy-saving and cost-reducing, produce again and be prone to the spherical soil conditioner that spread uses.Owing to achieving the recycling of industrial residue, in the spherical soil conditioner production process being main component with calcium carbonate, product per ton can consume industrial residue 980kg, saves and stacks land area 20000m2, create good economic benefit and social benefit, there is practical extending application value.
Claims (2)
1. a spherical soil conditioner, it is characterised in that be prepared via a method which to form: by mass percent 98% sulphuric acid and mass percent 97% liquefied ammonia by the part by weight of 1:2.1 at room temperature hybrid reaction, obtain ammonium sulfate；After the ammonium sulfate obtained is mixed according to the part by weight of 3:100:10 with industrial residue and carbamide under mixing machine room temperature, in 100oC-200oCAt temperature, pelletize in tubular reactor, then through drying, screening, cooling, fine screen, lifting and the packaging continuous print course of processing, produce spherical soil conditioner, granularity is 3-4mm；Described industrial residue is that decomposing phosphorite by using nitric acid produces the industrial residue being main component with calcium carbonate produced in phosphate fertilizer process.
2. the method for spherical soil conditioner as claimed in claim 1, it is characterised in that be prepared via a method which: by mass percent 98% sulphuric acid and mass percent 97% liquefied ammonia by the part by weight of 1:2.1 at room temperature hybrid reaction, obtain ammonium sulfate；After the ammonium sulfate obtained is mixed according to the part by weight of 3:100:10 with industrial residue and carbamide under mixing machine room temperature, in 100oC-200oCAt temperature, pelletize in tubular reactor, then through drying, screening, cooling, fine screen, lifting and the packaging continuous print course of processing, produce spherical soil conditioner, granularity is 3-4mm；Described industrial residue is that decomposing phosphorite by using nitric acid produces the industrial residue being main component with calcium carbonate produced in phosphate fertilizer process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610121481.0A CN105754606A (en) | 2016-03-04 | 2016-03-04 | Spherical soil conditioner and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610121481.0A CN105754606A (en) | 2016-03-04 | 2016-03-04 | Spherical soil conditioner and production process thereof |
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| CN105754606A true CN105754606A (en) | 2016-07-13 |
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| CN201610121481.0A Pending CN105754606A (en) | 2016-03-04 | 2016-03-04 | Spherical soil conditioner and production process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106748435A (en) * | 2016-12-07 | 2017-05-31 | 赵启良 | One kind urine base calcareous fertilisers |
| CN107082731A (en) * | 2017-03-14 | 2017-08-22 | 成都云图控股股份有限公司 | A kind of prilling process of particle nitrogen fertilizer |
| CN108314584A (en) * | 2018-03-14 | 2018-07-24 | 贵州芭田生态工程有限公司 | A method of the tailing generated using nitrophosphate fertilizer filter residue, calcium ammonium nitrate filter residue, phosphate rock floating prepares soil conditioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020095965A1 (en) * | 1997-07-18 | 2002-07-25 | Arnold Charles A. | Polyacrylamide suspensions for soil conditioning |
| CN101486610A (en) * | 2008-12-19 | 2009-07-22 | 深圳市芭田生态工程股份有限公司 | Compound fertilizer production method without drying process |
| CN104945173A (en) * | 2015-07-27 | 2015-09-30 | 蒋文兰 | Production method for calcium carbonate residue carbonized nutrient soil |
-
2016
- 2016-03-04 CN CN201610121481.0A patent/CN105754606A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020095965A1 (en) * | 1997-07-18 | 2002-07-25 | Arnold Charles A. | Polyacrylamide suspensions for soil conditioning |
| CN101486610A (en) * | 2008-12-19 | 2009-07-22 | 深圳市芭田生态工程股份有限公司 | Compound fertilizer production method without drying process |
| CN104945173A (en) * | 2015-07-27 | 2015-09-30 | 蒋文兰 | Production method for calcium carbonate residue carbonized nutrient soil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106748435A (en) * | 2016-12-07 | 2017-05-31 | 赵启良 | One kind urine base calcareous fertilisers |
| CN107082731A (en) * | 2017-03-14 | 2017-08-22 | 成都云图控股股份有限公司 | A kind of prilling process of particle nitrogen fertilizer |
| CN108314584A (en) * | 2018-03-14 | 2018-07-24 | 贵州芭田生态工程有限公司 | A method of the tailing generated using nitrophosphate fertilizer filter residue, calcium ammonium nitrate filter residue, phosphate rock floating prepares soil conditioner |
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Application publication date: 20160713 |