Extraction process of lysine fermentation liquor

The technology of lysine fermentation liquid and extraction process is applied in the field of lysine fermentation liquid extraction process of new feed additives, which can solve the problems of high production cost and maintenance cost, achieve low maintenance cost, less downtime and good economic benefits Effect

Inactive Publication Date: 2013-12-18
长治市金泽生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The membrane needs a large amount of fresh water to be diluted and rinsed when it is used, and it also needs to be cleaned regularly by chemicals, and the production cost and maintenance cost are relatively high

Method used

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  • Extraction process of lysine fermentation liquor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Taking the disc separator countercurrent washing process as an example, the feed amount is 18g / dl, the total solid content is 22-24% (w / w), the insoluble solid content is 1-2% (w / w), and the feed amount at 20m 3 / h, the amount of washing water added is 6m 3 / h, small slagging time interval: 2s, large slagging time interval: 55min, solids content in top flow of separator ≤0.4%, mycelium content in bottom flow ≤1g / dl, total yield ≥98.5%.

Embodiment 2

[0022] Taking the disc separator countercurrent washing process as an example, the feed amount is 18g / dl, the total solid content is 22-24% (w / w), the insoluble solid content is 1-2% (w / w), and the feed amount at 17m 3 / h, the amount of washing water added is 8m 3 / h, small slagging time interval: 2s, large slagging time interval: 55min, solids content in top flow of separator ≤0.2%, mycelium content in bottom flow ≤1g / dl, total yield ≥99%.

Embodiment 3

[0024] Taking the disc separator countercurrent washing process as an example, the feed amount is 15g / dl, the total solid content is 22-22% (w / w), the insoluble solid content is 1-2% (w / w), the feed amount at 17m 3 / h, the amount of washing water added is 8m 3 / h, small slagging time interval: 2s, large slagging time interval: 55min, solids content in top flow of separator ≤0.2%, mycelium content in bottom flow ≤1g / dl, total yield ≥99%.

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Abstract

The invention provides a new process of extracting lysine fermentation liquor by adopting a separator in a lysine production process. The technical process for the extraction of the lysine fermentation liquor comprises two stages as follows: a first stage for treating fermentation liquor; and a second stage for extracting lysine from the materials (which are treated in the first stage) through a process control system, wherein mycelia formed by separating are discharged from the bottom of the separator through a screw pump; and clear liquor is discharged from the top of the separator through a centripetal pump. The extraction process of the lysine fermentation liquor has the advantages of low investment, high benefit, high device efficiency, energy-saving and the like.

Description

technical field [0001] The invention belongs to the technical field of lysine fermented liquid extraction, in particular to a lysine fermented liquid extraction process of a new feed additive. Background technique [0002] my country's feed-grade L-lysine hydrochloride production technology was introduced by Fujian Daquan Company from Japan's Ajinomoto in Thailand in the 1980s. Later, due to immature technology, the company went bankrupt. Later, Changchun Dacheng Company became my country's The largest feed grade L-lysine hydrochloride producer. Now, several more have been built in China, and the technology and craftsmanship are basically from Dacheng, and the competition is becoming more and more fierce. Since 2010, the state has given great support to agriculture, and the price of corn in my country has risen. The cost of lysine will inevitably increase, and the price will inevitably be affected, because corn is the main raw material for the production of lysine, which dir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/26C07C227/40
CPCY02P20/10
Inventor 徐建凯王炳德李士军王鹏飞
Owner 长治市金泽生物工程有限公司
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