CN101028999B - Method for extracting cottonseed protein and recovering methanol - Google Patents
Method for extracting cottonseed protein and recovering methanol Download PDFInfo
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- CN101028999B CN101028999B CN2007100140717A CN200710014071A CN101028999B CN 101028999 B CN101028999 B CN 101028999B CN 2007100140717 A CN2007100140717 A CN 2007100140717A CN 200710014071 A CN200710014071 A CN 200710014071A CN 101028999 B CN101028999 B CN 101028999B
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- skimmer
- tower
- leacher
- told
- strainer
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Abstract
A process for recovering the methanol used in extracting protein from cotton seeds includes such steps as dephenolizing, filtering, separating oil phase from water phase, respectively delivering the oil phase in oil extractor and the water phase in storage tank, pumping the water phase in rectifying tower by metering pump, and rectifying.
Description
Technical field:
The present invention relates to the working method of vegetable-protein extraction, the recovery method of methyl alcohol in especially a kind of cottonseed protein extracting process process.
Background technology:
China is one and produces cotton big country, and the cottonseed cake resource is very abundant, and the protein contnt in the cottonseed cake is about 40%, and therefore, cottonseed cake is the same with soybean cake, is a kind of source best in quality rich vegetable protein matter.Yet,, can not effectively utilize because cottonseed cake contains a small amount of toxic substance---gossypol.At present, doing a lot of work aspect the cottonseed processing detoxification, as with the further boiling of cottonseed cake; Steam heat spray, solvent leach again, alkaline process processing, microbial fermentation etc.; Obtaining certain effect among a small circle, but since detoxification not thoroughly, cost is high, fails large scale continuous prod.In the process of producing cottonseed protein, methyl alcohol is adopted in dephenolize, because the 6# solvent has slightly soluble with methyl alcohol, separates relatively difficulty, has influenced the recycling of methyl alcohol and 6# solvent.
Summary of the invention:
A large amount of methyl alcohol dischargings pollute and waste in the existing production process in order to solve, and the present invention proposes a kind of method of cottonseed protein extracting process Methanol Recovery.
Of the present inventionly to the effect that realize by following technical scheme:
Its production stage is:
Methyl alcohol that the dephenolize leacher comes out gets into skimmer through strainer, and what the filter screen of strainer >=250 order/inches, skimmer were told two does not carry secretly each other;
The oil phase that skimmer is told is delivered to carries oily leacher, and the water conveying of telling is to temporary jar;
Aqueous portion pumps into rectifying tower through under meter, tower temperature >=95 ℃, and feeding temperature is 65-70 ℃, tower top temperature is 68-70 ℃, reboiler steam pressure 0.1-0.3Mpa, tower still waste liquid >=100 ℃.
Compared with prior art, present method Methanol Recovery utilization ratio is high, and discharging is few, and production technique is simple, and the recovery process cost is low, is prone to realize.
Description of drawings:
Accompanying drawing is production unit of the present invention and process flow sheet.
Embodiment:
Be described in detail embodiments of the invention below in conjunction with accompanying drawing.
A kind of method of cottonseed protein extracting process Methanol Recovery, production stage is:
A: in the cottonseed protein extracting process, useless methyl alcohol that the dephenolize leacher comes out 1 gets into skimmer 3 through strainer 2, and what the screen specification of strainer 2 >=250 order/inches, skimmer 3 were told two does not carry secretly each other;
B: the oil phase 5 that skimmer 3 is told is delivered to carries oily leacher 6, and the water of telling 4 is delivered to temporary jar 7;
C: water 4 parts pump into rectifying tower 9 through under meter 8, the temperature of rectifying tower 9 >=95 ℃, and water 4 feeding temperatures are 65-70 ℃; Tower top temperature is 68-70 ℃; Reboiler steam pressure 0.1-0.3Mpa, tower still waste liquid >=100 ℃ is in order to avoid cause the methanol solvate discharging that exceeds standard.
Tower still 9 is discharged waste water solution and is contained solvent less than 0.5%.
In the process of producing, the methyl alcohol flow is 1.5-2m3/h, and the methanol eddy amount is 0.5-1m3/h, and assurance methyl alcohol does not flow into carries oily leacher 6.
Claims (1)
1. the method for a cottonseed protein extracting process Methanol Recovery is characterized in that its production stage is:
A: methyl alcohol that the dephenolize leacher comes out gets into skimmer through strainer, and what the filter screen of strainer >=250 order/inches, skimmer were told two does not carry secretly each other;
B: the oil phase that skimmer is told is delivered to carries oily leacher, and the water conveying of telling is to temporary jar;
C: aqueous portion pumps into rectifying tower through under meter, tower temperature >=95 ℃, and feeding temperature is 65-70 ℃, tower top temperature is 68-70 ℃, reboiler steam pressure 0.1-0.3Mpa, tower still waste liquid >=100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100140717A CN101028999B (en) | 2007-04-02 | 2007-04-02 | Method for extracting cottonseed protein and recovering methanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100140717A CN101028999B (en) | 2007-04-02 | 2007-04-02 | Method for extracting cottonseed protein and recovering methanol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028999A CN101028999A (en) | 2007-09-05 |
| CN101028999B true CN101028999B (en) | 2012-07-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100140717A Expired - Fee Related CN101028999B (en) | 2007-04-02 | 2007-04-02 | Method for extracting cottonseed protein and recovering methanol |
Country Status (1)
| Country | Link |
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| CN (1) | CN101028999B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768204B (en) * | 2008-12-29 | 2014-02-05 | 北京中棉紫光生物科技有限公司 | Separating and reclaiming method of solvent oil and dephenolized polar solvent in cottonseed protein production |
| CN104987281B (en) * | 2015-03-30 | 2017-04-05 | 宁夏龙江化工科技有限公司 | Useless methanol purification reutilization system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306078A (en) * | 2000-12-11 | 2001-08-01 | 北京中棉紫光生物科技有限公司 | Process for treating cotton seeds |
| CN1919035A (en) * | 2006-09-21 | 2007-02-28 | 郑州新力德粮油科技有限公司 | Dephenolizing cotton protein producing method by cottonseed cold press mixed solvent primary leaching |
-
2007
- 2007-04-02 CN CN2007100140717A patent/CN101028999B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306078A (en) * | 2000-12-11 | 2001-08-01 | 北京中棉紫光生物科技有限公司 | Process for treating cotton seeds |
| CN1919035A (en) * | 2006-09-21 | 2007-02-28 | 郑州新力德粮油科技有限公司 | Dephenolizing cotton protein producing method by cottonseed cold press mixed solvent primary leaching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101028999A (en) | 2007-09-05 |
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Effective date of registration: 20080222 Address after: Beijing City Xihuan Plaza No. 1 Xicheng District Xizhimen Street No. 2 Building 9 layer Applicant after: Zhongmian Ziguang Biological Science and Technology Co., Ltd., Beijing Address before: Dongying City, Shandong Province Economic Development Zone No. 39 Lijin County Applicant before: Sun Xudong |
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