CN105418553A - Method for preparing furfural through steam explosion separation method - Google Patents
Method for preparing furfural through steam explosion separation method Download PDFInfo
- Publication number
- CN105418553A CN105418553A CN201510820541.3A CN201510820541A CN105418553A CN 105418553 A CN105418553 A CN 105418553A CN 201510820541 A CN201510820541 A CN 201510820541A CN 105418553 A CN105418553 A CN 105418553A
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- CN
- China
- Prior art keywords
- furfural
- steam explosion
- liquid
- raw material
- raw materials
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- 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.)
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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
Abstract
The invention provides a method for preparing furfural through a steam explosion separation method. The method includes the following steps of firstly, collecting crop raw materials, and collecting raw materials capable of being processed into furfural; secondly, cutting up the collected raw materials; thirdly, placing water in an intermittent type steam explosion device according to the solid-liquid ratio of 1 to 1, conducting the steam explosion, conducting hydrolysis under the effect of dilute acid, and obtaining liquid containing furfural; fourthly, crystallizing the liquid, and completing processing and production. According to the method for preparing furfural through the steam explosion separation method, corresponding crop fiber is processed through the steam explosion mode, the preparation efficiency is high, and the preparation effect is good.
Description
Technical field
The present invention relates to furfural preparation field, particularly a kind of method adopting vapour bursting separation 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., in steam explosion process, high-pressure hot steam enters in fibrous material, and infiltrated fiber internal voids, and then can significantly reduce fibrous polymer degree.
Summary of the invention
For above problem, the present invention is a kind of method adopting vapour bursting separation to prepare furfural, steam explosion mode is adopted to process corresponding plant fiber, preparation efficiency is high, prepare effective, for reaching this object, the invention provides a kind of method adopting vapour bursting separation to prepare furfural, comprising the following steps:
The first step, to collect as raw material, the raw material that can be processed as furfural is collected;
Second step, the raw material gathered carried out chopping process;
3rd step, add water and put into the quick-fried device of intermittent steam vapour by solid-liquid 1:1, carry out steam-explosion process, 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 vapour bursting separation to prepare furfural, vapour bursting separation is adopted to process plant fiber, after steam-explosion, high-pressure hot steam enters in fibrous material, and infiltrated fiber internal voids, 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 vapour bursting separation to prepare furfural, and adopt steam explosion mode to process corresponding plant fiber, preparation efficiency is high, prepares effective.
Adopt vapour bursting separation to prepare a method for furfural, it is characterized in that, comprise the following steps:
The first step, to collect as raw material, the raw material that can be processed as furfural is collected;
Second step, the raw material gathered carried out chopping process;
3rd step, add water and put into the quick-fried device of intermittent steam vapour by solid-liquid 1:1, carry out steam-explosion process, 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 vapour bursting separation to prepare a method for furfural, it is characterized in that, comprise the following steps:
The first step, to collect as raw material, the raw material that can be processed as furfural is collected;
Second step, the raw material gathered carried out chopping process;
3rd step, add water and put into the quick-fried device of intermittent steam vapour by solid-liquid 1:1, carry out steam-explosion process, 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 |
|---|---|---|---|
| CN201510820541.3A CN105418553A (en) | 2015-11-24 | 2015-11-24 | Method for preparing furfural through steam explosion separation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510820541.3A CN105418553A (en) | 2015-11-24 | 2015-11-24 | Method for preparing furfural through steam explosion separation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105418553A true CN105418553A (en) | 2016-03-23 |
Family
ID=55497157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510820541.3A Pending CN105418553A (en) | 2015-11-24 | 2015-11-24 | Method for preparing furfural through steam explosion separation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105418553A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633651A (en) * | 2008-07-23 | 2010-01-27 | 中国科学院过程工程研究所 | Method for preparing furfuraldehyde directly from water washing substances of steam explosion through acidless autocatalysis |
| CN104292192A (en) * | 2014-08-29 | 2015-01-21 | 济南米铎碳新能源科技有限公司 | Combined production method of high added value product during furfural production |
-
2015
- 2015-11-24 CN CN201510820541.3A patent/CN105418553A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633651A (en) * | 2008-07-23 | 2010-01-27 | 中国科学院过程工程研究所 | Method for preparing furfuraldehyde directly from water washing substances of steam explosion through acidless autocatalysis |
| CN104292192A (en) * | 2014-08-29 | 2015-01-21 | 济南米铎碳新能源科技有限公司 | Combined production method of high added value product during furfural production |
Non-Patent Citations (2)
| Title |
|---|
| 乔小青等: "汽爆玉米秸秆水提液制备糠醛的研究", 《北京化工大学学报（自然科学版）》 * |
| 余先纯等: "锯木屑蒸汽爆破预处理制备糠醛的研究", 《林产化学与工业》 * |
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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: 20160323 |
|
| RJ01 | Rejection of invention patent application after publication |