CN101103802A - Isoelectric separating new technology for glutamic acid - Google Patents
Isoelectric separating new technology for glutamic acid Download PDFInfo
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- CN101103802A CN101103802A CNA2007100164340A CN200710016434A CN101103802A CN 101103802 A CN101103802 A CN 101103802A CN A2007100164340 A CNA2007100164340 A CN A2007100164340A CN 200710016434 A CN200710016434 A CN 200710016434A CN 101103802 A CN101103802 A CN 101103802A
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- glutamic acid
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Abstract
The invention discloses a novel technology of electric separation for glutamic acid, which is characterized in that: a cone-shaped settlement process is added, the middle and upper clear solution in an isoelectric tank is transferred to an ion exchange process through a clear solution valve; the mixed liquor at the middle layer is transferred into a cone-shaped setting bath for settlement , after the settlement is implemented, the base solution is directly transferred into an overhead tank in the centrifugal process for implementing a centrifugal treatment, and the spillage in the cone-shaped setting bath is entered into the ion exchange process; finally the lower Alpha-glutamate is put into the overhead tank in the centrifugal process through the bottom valve. Compared with the prior art, the invention has the advantages that: the extraction rate is improved obviously, which is increased to 96 percent from the original 88 percent; the solid-liquid mixing volume is reduced obviously through the cone-shaped settlement process, thus the pressure of the rear centrifugal process can be lightened; the use of acid and alkali in the ion exchange process is slightly decreased.
Description
Technical field the invention belongs to the glutamate production technical field, relates to a kind of isoelectric separating new technology for glutamic acid.
The production of background technology glutamic acid is the important step of glutamate production, and the extracting glutamic acid yield directly influences the quality and the economic benefit of product.In the glutamate production process, it is extremely important how to improve the extracting glutamic acid yield a bit for cause.Extract glutamic acid at present both at home and abroad a lot of extracting methods are arranged.Most of producer all is that to utilize glutamic acid be ampholytes, utilize the character of its solubility minimum when isoelectric point to extract glutamic acid, so-called isoelectric point method is about to fermentating liquid acidification and transfers the isoelectric pH 3.22 of pH to glutamic acid, the method that the glutamic acid precipitation is separated out.In the production there be much the technology of isoelectric point method extraction glutamic acid, have direct normal temperature isoelectric point method, hydrolysis isoelectric point method, low temperature isoelectric point method, etc. electricity-from the friendship method and concentrate continuous isoelectric point method etc., at present, domestic many producers all adopt electricity such as traditional-extract glutamic acid from the skill of handing over, it extracts former technology is that zymotic fluid is squeezed into etc. in the electricity jar, by it being lowered the temperature and regulating pH value, make the glutamic acid precipitation, in waiting electricity jar, form three layers in upper, middle and lower, be called A, B, C district respectively successively.Be A district (the isoelectric point mother liquor is also referred to as clear liquid area), B district (β-glutamic acid and mycoprotein mixed zone), C district (α-glutamic acid precipitation).After forming above precipitation subregion, we directly squeeze into the A district from the preface of handing over by the clear liquid valve isoelectric point mother liquor are exchanged by ion exchange resin column, use the glutamic acid on the alkali lye wash-out resin then, collect high flow point, itself and next group zymotic fluid are merged, extract glutamic acid with isoelectric point method again; B district, C district successively squeeze into rotary process by bottom valve respectively and carry out centrifugation glutamic acid by centrifuge, and the clear liquid of generation is squeezed into from the preface of handing over again, and gained glutamic acid dry matter content is about 88%.Prior art processes have equipment simple, be convenient to operation, with short production cycle, good in economic efficiency, advantage such as continuing property of the company of production is strong; But have also that the average extract yield of glutamic acid is not high, sulfuric acid liquefied ammonia consumes shortcomings such as more, in addition because the volume of solid-liquid mixing bran acid is big, so the big defective of pressure that the rotary process of postorder is caused.
Summary of the invention the purpose of this invention is to provide a kind of extract yield height, isoelectric separating new technology for glutamic acid that the consumption of sulfuric acid liquefied ammonia is few, to overcome the deficiencies in the prior art.
To achieve these goals, isoelectric separating new technology for glutamic acid of the present invention improve to be realized on original technology basis, and its key points for operation are to have set up taper sedimentation operation, will wait electricity clear liquid jar at the middle and upper levels to get to from handing over preface by the clear liquid valve; The mixed liquor in middle level is squeezed into by bottom valve and is carried out sedimentation in the cone settling tank, and end liquid is directly squeezed into the head tank of rotary process after the sedimentation, carries out centrifugal treating, and the spillage in the cone settling tank enters from the preface of handing over; α-the glutamic acid of lower floor at last by bottom valve squeeze into carry out in the head tank of rotary process centrifugal.
New technology of the present invention is compared with prior art processes, has following characteristics:
1, extract yield is significantly improved, and by original 88%, can bring up to 96%;
2, by the taper depositing technology, can make the long-pending obviously minimizing of solid-liquid mixture of glutamic acid, can alleviate the pressure of road, back rotary process like this;
3, the use amount from the preface soda acid of handing over decreases.
Appended drawings is an isoelectric separating new technology for glutamic acid schematic flow sheet of the present invention.
The specific embodiment with reference to the accompanying drawings, isoelectric separating new technology for glutamic acid of the present invention, on existing technology basis, added cone settling tank, earlier the B district is squeezed into cone settling tank, carry out taper and connect the sedimentation that continues, after the sedimentation, the high position that end liquid is squeezed into rotary process is carried out centrifugal, spillage is got to from the preface of handing over handled.
A district clear liquid is got to from handing over preface by the clear liquid valve in electricity such as the embodiment jar, B district mixed liquor is squeezed into by bottom valve and is carried out the taper sedimentation in the cone settling tank, after the taper sedimentation, end liquid is directly squeezed into the head tank of rotary process, carry out centrifugal treating, the spillage in the cone settling tank enters from the preface of handing over; α-the glutamic acid in C district at last by bottom valve squeeze into carry out in the head tank of rotary process centrifugal.
Improve the back new technology by implementing test, obtain the data statistics result and show that extract yield can be increased to 96%, the ton manufacturing cost reduces about 300 yuan, and its economic benefit is very remarkable.
Claims (1)
1. isoelectric separating new technology for glutamic acid is characterized in that it has set up taper sedimentation operation, with etc. electricity jar clear liquid at the middle and upper levels get to from handing over preface by the clear liquid valve; The mixed liquor in middle level is squeezed into by bottom valve and is carried out sedimentation in the cone settling tank, and end liquid is directly squeezed into the head tank of rotary process after the sedimentation, carries out centrifugal treating, and the spillage in the cone settling tank enters from the preface of handing over; α-the glutamic acid of lower floor at last by bottom valve squeeze into carry out in the head tank of rotary process centrifugal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100164340A CN101103802A (en) | 2007-07-30 | 2007-07-30 | Isoelectric separating new technology for glutamic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100164340A CN101103802A (en) | 2007-07-30 | 2007-07-30 | Isoelectric separating new technology for glutamic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101103802A true CN101103802A (en) | 2008-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100164340A Pending CN101103802A (en) | 2007-07-30 | 2007-07-30 | Isoelectric separating new technology for glutamic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101103802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491323B (en) * | 2008-11-12 | 2012-12-26 | 山东阜丰生物科技开发有限公司 | New production technique of sodium glutamate |
-
2007
- 2007-07-30 CN CNA2007100164340A patent/CN101103802A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491323B (en) * | 2008-11-12 | 2012-12-26 | 山东阜丰生物科技开发有限公司 | New production technique of sodium glutamate |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080116 |