CN108314666A - The method for producing furfural using stalk - Google Patents
The method for producing furfural using stalk Download PDFInfo
- Publication number
- CN108314666A CN108314666A CN201710030134.1A CN201710030134A CN108314666A CN 108314666 A CN108314666 A CN 108314666A CN 201710030134 A CN201710030134 A CN 201710030134A CN 108314666 A CN108314666 A CN 108314666A
- Authority
- CN
- China
- Prior art keywords
- stalk
- furfural
- corncob
- mentioned
- liquid
- 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
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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
The present invention provides the methods for producing furfural using stalk, this method includes collecting stalk, corncob, corncob peel, by the above-mentioned stalk being collected into, corncob, corncob peel is cut into chunks by machinery hand hay cutter, by the above-mentioned stalk cut into chunks, corncob, corncob peel is added dilute sulfuric acid and is hydrolyzed, the liquid containing furfural is obtained after hydrolysis, liquid obtained above is distilled, it is neutralized after above-mentioned distillation, dehydration purification, it decolourizes after aforesaid liquid is purified, so that liquid becomes 98.5% or more transparency liquid of purity from tenne, transparency liquid obtained above is subjected to neutralization dehydration, the furfural of the present invention is obtained after dehydration, furfural finished product sale is obtained by above-mentioned.Compared with the existing technology, this method can not only utilize stalk, can also produce furfural using corncob peel, corncob simultaneously so that production is reliable and stable, can operate continuously utilization, be suitable for industrialized production.And the furfural yield produced through the invention is high, ensure that the quality of furfural.
Description
Technical field
The method that the present invention relates to the use of stalk production furfural.
Background technology
Furfural (furtural, English：Furfural) it is a kind of industrial chemical product, it can be by extracting in various agricultural and sideline products
It takes, includes the wheat bran and wood sawdust of corncob, oat and wheat.This word of furfural is taken from the furfur of Latin word,
Wheat bran is meant, because this is the source that furfural obtains.Furfural is a kind of aromatic aldehyde, chemical formula C5 H4 O2.Pure chaff
Aldehyde is the colourless oily liquids for having almond, and yellow can be quickly turned to by being exposed in air.
Currently, being to produce furfural using corncob, disadvantage is exactly that peasant household's yield is not caught up with, and corncob is very little, and supply falls short of demand,
In addition, if crop straw burning can cause very serious atmosphere pollution, and stalk can be used for preparing furfural.
Therefore, how not merely with corncob while furfural can also be produced using stalk and corncob peel, is this hair
Bright technical problems to be solved.
Invention content
For the drawbacks described above and problem of the prior art, the object of the present invention is to provide the sides that furfural is produced using stalk
Method.
Based on above-mentioned purpose, the present invention provides the following technical solutions：
According to an aspect of the present invention, the method for producing furfural using stalk is provided, this method includes collecting stalk, jade
The above-mentioned stalk being collected into, corncob, corncob peel are torn up hand hay cutter by machinery and cut into chunks, cut above-mentioned by meter Xin, corncob peel
Dilute sulfuric acid is added at the stalk, corncob, corncob peel of section to be hydrolyzed, the hair aldehyde liquid containing furfural is obtained after hydrolysis, then
After hair aldehyde is neutralized, is dehydrated, decolourizing so that liquid from it is tenne become 98.5% or more light yellow clear of purity at
Product, i.e. furfural of the invention, the above-mentioned furfural that obtains carry out sale of finished goods.
Further, the stalk is the various stalks such as maize straw and broomcorn straw.
Further, the stalk, corncob, corncob peel guillotine cutting crush the particle section of 1cm.
Further, the hydrolysis period is 4-5 hours.
Further, the concentration of the dilute sulfuric acid maintains 2-5%.
Further, the temperature when distillation is controlled at 140-200 DEG C.
The present invention compared with the existing technology, reduces the production cost of furfural, and serious pollution will not be caused because of burning,
In addition, it is noted that active bio charcoal fertilizer or manufacture coal gas can also be produced by remaining furfural dregs.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, technical scheme of the present invention is clearly and completely described, it is clear that
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The scope of protection of the invention.
According to an aspect of the present invention, a kind of method producing furfural using stalk is provided, this method includes collecting straw
Stalk, corncob, corncob peel etc. cut into chunks the above-mentioned stalk being collected into, corncob, corncob peel by machinery hand hay cutter, will be upper
It states stalk, corncob, corncob peel the addition catalyst lean sulfuric acid cut into chunks to be hydrolyzed, the liquid containing furfural is obtained after hydrolysis
Body distills liquid obtained above, carries out being purified to a mao aldehyde after above-mentioned distillation, and the brown liquid of orange obtained above is carried out
The furfural of the present invention is obtained after neutralizing dehydration, decoloration, the above-mentioned furfural that obtains carries out sale of finished goods.
Through the above it is not difficult to find that the method for the present invention so that furfural quality is high, the production cost of furfural is reduced,
Serious pollution will not be caused because of burning, in addition, it is noted that active life can also be produced by remaining furfural dregs
Object charcoal fertilizer or manufacture coal gas.
In addition, it is noted that the particle section of the stalk, corncob, corncob peel guillotine cutting 1cm, guarantees fast
Speed is hydrolyzed, wherein the hydrolysis period is 4-5 hours, to reduce production cost, and convenient for the exploitation of stalk
And utilization.
In addition, it is necessary to explanation, the concentration of the dilute sulfuric acid maintains 2-5%, and the temperature control when distillation exists
140-200 DEG C, to reduce production cost.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. utilizing the method for stalk production furfural, which is characterized in that this method includes collecting stalk, corncob, corncob peel, will
The above-mentioned stalk being collected into, corncob, corncob peel tear up hand hay cutter by machinery and cut into chunks, by the above-mentioned stalk cut into chunks, corn
Core, corncob peel addition dilute sulfuric acid make catalyst and are hydrolyzed, and the liquid containing furfural are obtained after hydrolysis, by liquid obtained above
Body carries out being distilled into a mao aldehyde, and above-mentioned hair aldehyde is neutralized, dehydration, decolourizes to purify so that liquid becomes purity from tenne
98.5% or more transparency liquid, transparency liquid obtained above is dehydrated, and the furfural of the present invention is obtained after dehydration, will
The above-mentioned furfural that obtains carries out sale of finished goods.
2. the method according to claim 1 for producing furfural using stalk, which is characterized in that the stalk is maize straw
With the various stalks such as broomcorn straw.
3. the method according to claim 1 for producing furfural using stalk, which is characterized in that the stalk, corncob, jade
Rice stick skin tears up the particle section of guillotine cutting 1cm.
4. the method according to claim 1 for producing furfural using stalk, which is characterized in that the hydrolysis period is 4-5
Hour.
5. the method according to claim 1 for producing furfural using stalk, which is characterized in that the concentration of the dilute sulfuric acid is tieed up
It holds in 2-5%.
6. the method according to claim 1 for producing furfural using stalk, which is characterized in that the temperature control when distillation
System is at 140-200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710030134.1A CN108314666A (en) | 2017-01-17 | 2017-01-17 | The method for producing furfural using stalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710030134.1A CN108314666A (en) | 2017-01-17 | 2017-01-17 | The method for producing furfural using stalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108314666A true CN108314666A (en) | 2018-07-24 |
Family
ID=62891741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710030134.1A Pending CN108314666A (en) | 2017-01-17 | 2017-01-17 | The method for producing furfural using stalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108314666A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337953A (en) * | 2008-08-14 | 2009-01-07 | 河南宏业化工有限公司 | Method for producing furfural by cleaning hydrolysis of biomass |
| US20120157697A1 (en) * | 2010-12-21 | 2012-06-21 | E. I. Du Pont De Nemours And Company | Process for furfural production from biomass |
| CN102633755A (en) * | 2012-04-05 | 2012-08-15 | 宋国友 | Method for producing furfural by use of corncob |
| US20130109869A1 (en) * | 2011-10-31 | 2013-05-02 | E. I. Du Pont De Nemours And Company | Production of furfural from biomass |
| CN105198842A (en) * | 2015-10-23 | 2015-12-30 | 上海毅知实业有限公司 | Clean production line for furfural and production method of furfural |
| CN105418555A (en) * | 2015-12-01 | 2016-03-23 | 滁州市润达溶剂有限公司 | Method for hydrolytically preparing furfural |
-
2017
- 2017-01-17 CN CN201710030134.1A patent/CN108314666A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337953A (en) * | 2008-08-14 | 2009-01-07 | 河南宏业化工有限公司 | Method for producing furfural by cleaning hydrolysis of biomass |
| US20120157697A1 (en) * | 2010-12-21 | 2012-06-21 | E. I. Du Pont De Nemours And Company | Process for furfural production from biomass |
| CN103261184A (en) * | 2010-12-21 | 2013-08-21 | 纳幕尔杜邦公司 | Process for furfural production from biomass |
| US20130109869A1 (en) * | 2011-10-31 | 2013-05-02 | E. I. Du Pont De Nemours And Company | Production of furfural from biomass |
| CN102633755A (en) * | 2012-04-05 | 2012-08-15 | 宋国友 | Method for producing furfural by use of corncob |
| CN105198842A (en) * | 2015-10-23 | 2015-12-30 | 上海毅知实业有限公司 | Clean production line for furfural and production method of furfural |
| CN105418555A (en) * | 2015-12-01 | 2016-03-23 | 滁州市润达溶剂有限公司 | Method for hydrolytically preparing furfural |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102030646B (en) | Direct transformation process of ethyl levulinate by hydrolysis of cellulose materials | |
| CN104311411B (en) | The method of levulinic acid is prepared in multistage acid hydrolysis | |
| BRPI0719511B1 (en) | production process of one or more olefins | |
| CN101302206A (en) | Method for preparing furfural with maize | |
| CN101172942A (en) | Method for producing calcium acetate with egg shell | |
| CN102584740B (en) | Synthesis method for 4-methyl-5-(2-ethoxyl)-thiazole | |
| CN101775447A (en) | Method for preprocessing biomass raw material by electrolyzed water ionic system | |
| CN101613632A (en) | A kind of biomass granule fuel | |
| JP5059650B2 (en) | Method for producing monosaccharide or oligosaccharide from polysaccharide | |
| CN108314666A (en) | The method for producing furfural using stalk | |
| CN102617374B (en) | Method for preparing betaine hydrochloride | |
| CN108714312A (en) | A kind of oil tea shell rises in value the method utilized at many levels | |
| CN102295561A (en) | Preparation method of 2-ethylhexyl (4-chloro-2-methylphenoxy)acetate | |
| CN102382910A (en) | Preparation method for producing xylose by using corn cob | |
| CN101372448A (en) | Production method of chloromethyl ethyl ether | |
| AU2015260217B2 (en) | Plant processing system | |
| CN102976895A (en) | Method for producing xylitol through utilizing crop wastes | |
| Sabiha-Hanim et al. | Reducing sugar production from oil palm fronds and rice straw by acid hydrolysis | |
| CN102260754B (en) | Method for preparing fermentable saccharide from cellulose wastes by differential expression filter bed low-acid hydrolysis | |
| AU2013303760A1 (en) | Process for improved seaweed biomass conversion for fuel intermediates, agricultural nutrients and fresh water | |
| CN101863765A (en) | Method for preparing fumaric acid ester by using plant straws | |
| CN102532102B (en) | Preparation method for imazapyr | |
| RU2488445C1 (en) | Synthesis of multifunctional catalyst for oxidative cracking of organic material and method for liquid-phase low-temperature oxidative cracking of organic material (versions) | |
| CN104926702A (en) | Preparation method for 2-methylmercapto-4-thrifluoromethyl benzoate | |
| CN109796491A (en) | A method of preparing glyphosate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180724 |