CN105330625A - Method for preparing furfural by adopting high-temperature pressurizing pretreatment - Google Patents
Method for preparing furfural by adopting high-temperature pressurizing pretreatment Download PDFInfo
- Publication number
- CN105330625A CN105330625A CN201510820337.1A CN201510820337A CN105330625A CN 105330625 A CN105330625 A CN 105330625A CN 201510820337 A CN201510820337 A CN 201510820337A CN 105330625 A CN105330625 A CN 105330625A
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- China
- Prior art keywords
- furfural
- temperature pressurizing
- adopting high
- liquid
- treatment
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/46—Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
- C07D307/48—Furfural
- C07D307/50—Preparation from natural products
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/13—Crystalline forms, e.g. polymorphs
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
The invention provides a method for preparing furfural by adopting high-temperature pressurizing pretreatment. The method comprises the following steps: step one, collecting crop raw materials; step two, chopping the collected raw materials; step three, adding water, mixing the materials in a ratio of solids to liquids being 1:1, then performing high-temperature pressurizing treatment with a pressure cooker, and performing hydrolysis under the action of diluted acid to obtain a furfural-containing liquid; step four, crystalizing the liquid and finishing processing production. According to the method for preparing the furfural by adopting high-temperature pressurizing pretreatment, a high-temperature pressurizing mode is adopted to treat corresponding crop fiber, so that redundant hemicellulose and lignin in the materials are reduced remarkably, and the furfural yield is increased.
Description
Technical field
The present invention relates to furfural preparation field, particularly a kind of method adopting high-temperature pressurizing pre-treatment to prepare furfural.
Background technology
The agricultural byproducts of the furfural industrially luxuriant sugar of the many contractings of multiplex carbohydrate containing are raw material, are hydrolyzed under the effect of diluted acid, and further water ringization manufactures furfural.Furfural is excellent solvent, also for the preparation of medicine and Industrial products.Can be used to produce furans, polyamide fibre 66 and coromegine etc., few fibers just can carry out furfural processing after needing to carry out pre-treatment, and not so its interior half fiber or xylogen are often too much, can affect aldehyde rate.
Summary of the invention
For above problem, the present invention is a kind of method adopting high-temperature pressurizing pre-treatment to prepare furfural, high-temperature pressurizing mode is adopted to process corresponding plant fiber, thus significantly by half fiber unnecessary in its material and xylogen, and then improve furfural productive rate, for reaching this object, the invention provides a kind of method adopting high-temperature pressurizing pre-treatment to prepare furfural, it is characterized in that, comprise the following steps:
The first step, to collect as raw material;
Second step, the raw material gathered carried out chopping process;
3rd step, add water and mix by solid-liquid 1:1, then carry out high-temperature pressurizing process by pressure kettle, then be hydrolyzed under the effect of diluted acid, obtain the liquid containing furfural;
4th step, crystallization treatment is carried out to liquid, complete processing.
The present invention is a kind of method adopting high-temperature pressurizing pre-treatment to prepare furfural, high-temperature pressurizing mode is adopted to process plant fiber, half fiber or xylogen in crop significantly can be reduced after adopting pressure kettle, and then can significantly reduce fibrous polymer degree, thus significantly improve product go out aldehyde rate.
Embodiment
The present invention is a kind of method adopting high-temperature pressurizing pre-treatment to prepare furfural, adopts high-temperature pressurizing mode to process corresponding plant fiber, thus significantly by half fiber unnecessary in its material and xylogen, and then improve furfural productive rate.
Adopt high-temperature pressurizing pre-treatment to prepare a method for furfural, it is characterized in that, comprise the following steps:
The first step, to collect as raw material;
Second step, the raw material gathered carried out chopping process;
3rd step, add water and mix by solid-liquid 1:1, then carry out high-temperature pressurizing process by pressure kettle, then be hydrolyzed under the effect of diluted acid, obtain the liquid containing furfural;
4th step, crystallization treatment is carried out to liquid, complete processing.
The above is only preferred embodiment of the present invention, is not restriction the present invention being made to any other form, and any amendment done according to technical spirit of the present invention or equivalent variations, still belong to the present invention's scope required for protection.
Claims (1)
1. adopt high-temperature pressurizing pre-treatment to prepare a method for furfural, it is characterized in that, comprise the following steps:
The first step, to collect as raw material;
Second step, the raw material gathered carried out chopping process;
3rd step, add water and mix by solid-liquid 1:1, then carry out high-temperature pressurizing process by pressure kettle, then be hydrolyzed under the effect of diluted acid, obtain the liquid containing furfural;
4th step, crystallization treatment is carried out to liquid, complete processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820337.1A CN105330625A (en) | 2015-11-24 | 2015-11-24 | Method for preparing furfural by adopting high-temperature pressurizing pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820337.1A CN105330625A (en) | 2015-11-24 | 2015-11-24 | Method for preparing furfural by adopting high-temperature pressurizing pretreatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105330625A true CN105330625A (en) | 2016-02-17 |
Family
ID=55281417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510820337.1A Pending CN105330625A (en) | 2015-11-24 | 2015-11-24 | Method for preparing furfural by adopting high-temperature pressurizing pretreatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105330625A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858043A (en) * | 2006-06-07 | 2006-11-08 | 济南圣泉集团股份有限公司 | Method for producing furol by extruding plant stalk |
| CN101130530A (en) * | 2007-09-17 | 2008-02-27 | 济南圣泉集团股份有限公司 | System and method for producing furol by using agricultural and forestry castoff |
| CN102399204A (en) * | 2011-12-29 | 2012-04-04 | 山东太阳纸业股份有限公司 | Process for preparing furfural by dissolving pulp wood chip hydrolysate sulfuric acid continuous method |
| WO2013102007A1 (en) * | 2011-12-28 | 2013-07-04 | E. I. Du Pont De Nemours And Company | Process for the production of furfural |
| CN104411830A (en) * | 2012-07-13 | 2015-03-11 | 瑞恩麦特克斯股份有限公司 | Supercritical hydrolysis of biomass |
-
2015
- 2015-11-24 CN CN201510820337.1A patent/CN105330625A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858043A (en) * | 2006-06-07 | 2006-11-08 | 济南圣泉集团股份有限公司 | Method for producing furol by extruding plant stalk |
| CN101130530A (en) * | 2007-09-17 | 2008-02-27 | 济南圣泉集团股份有限公司 | System and method for producing furol by using agricultural and forestry castoff |
| WO2013102007A1 (en) * | 2011-12-28 | 2013-07-04 | E. I. Du Pont De Nemours And Company | Process for the production of furfural |
| CN102399204A (en) * | 2011-12-29 | 2012-04-04 | 山东太阳纸业股份有限公司 | Process for preparing furfural by dissolving pulp wood chip hydrolysate sulfuric acid continuous method |
| CN104411830A (en) * | 2012-07-13 | 2015-03-11 | 瑞恩麦特克斯股份有限公司 | Supercritical hydrolysis of biomass |
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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: 20160217 |
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| RJ01 | Rejection of invention patent application after publication |