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Method for separating acrylamide prepared by microbial method from impurities

A technology of acrylamide and microbial method, which is applied in the field of separation of acrylamide and impurities, can solve the problems of increasing separation time, increasing the pressure of environmental protection, and easy dirt and blockage, so as to simplify production equipment and processes, improve work efficiency, and reduce production cost effect

Inactive Publication Date: 2013-06-12
江西昌九农科化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Microbial production of acrylamide is currently the best method for industrial production of acrylamide. The main problem of using this process is: currently, membrane separation technology is used to separate acrylamide and bacteria-based impurities, but because the membrane material is not pressure-resistant Yes, when separating bacteria and acrylamide, it is easy to get dirty and clogged, which reduces the flux of the membrane and increases the separation time
At the same time, it is also easy to break, so the quality of acrylamide products cannot be guaranteed
In addition, in the post-processing of the bacteria, membrane technology cannot effectively separate the bacteria, causing most microorganisms to pollute the environment and increasing the pressure on environmental protection

Method used

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  • Method for separating acrylamide prepared by microbial method from impurities

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Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1, the separation method of acrylamide and impurities produced by microbial method, wherein: the acrylamide solution mixed with impurities enters the inner cavity of the discharge screw 6 through the feed liquid inlet 1, and the inner cavity of the discharge screw 6 passes through the feed liquid outlet 6 communicates with the cavity, which is located between the drum 5 and the discharge screw 6; the motor 5 drives the discharge screw 6 to rotate, and the acrylamide solution mixed with impurities is thrown out from the feed liquid outlet 4, and the impurities are thrown to the drum Accumulate on the inner wall of the drum 5, and a scraper 2 is installed on the outer wall of the discharge screw 6, and the scraper 2 rotating with the discharge screw 6 gathers and scrapes the impurities accumulated on the inner wall of the drum 5 to the heavy phase outlet 9 to be discharged; the impurities are separated The final acrylamide light liquid is discharged from the lig...

Embodiment 2

[0017] Embodiment 2, the separation method of acrylamide and impurities produced by microbial method, wherein: an overflow plate 7 is installed before the light phase outlet 8 . All the other are with embodiment 1. The function of the overflow plate 7 is to prolong the separation time of the material in the drum 5 to achieve a better separation effect.

Embodiment 3

[0018] Embodiment 3, the separation method of acrylamide and impurities produced by microbial method, wherein: the radius of the overflow plate 7 is 10 mm. All the other are with embodiment 2.

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Abstract

The invention relates to a method for separating acrylamide prepared by microbial method and impurities. The technical proposal is as follows: acrylamide solution mixed with impurities enters an inner chamber of a discharge auger through a liquor inlet, the inner chamber of the discharge auger is communicated with a cavity by a liquor outlet, and the cavity is arranged between a rotor drum and the discharge auger; a motor drives the discharge auger to rotate, the acrylamide solution mixed with impurities is discharged from the liquor outlet, the impurities are discharged to an inner wall of the rotor drum for accumulation, a scraper is arranged on an outer wall of the discharge auger, and the scraper which rotates with the discharge auger gathers and scraps the impurities accumulated on the inner wall of the rotor drum to a heaver phase outlet for discharge; and light acrylamide liquid separated from the impurities is discharged from a light phase outlet. The process for producing acrylamide can help solve the disadvantages of membrane irresistibility to pressure, easy filth blockage, easy loss and high cost during membrane separation, and prevent environmental pollution from mostbacteria, thus achieving goals of energy saving and emission reduction, and energy saving and consumption reduction.

Description

technical field [0001] The invention relates to a method for separating acrylamide and impurities. Especially the separation method of acrylamide and impurities produced by microbial method. Background technique [0002] Acrylamide can be produced in a variety of ways. Microbial production of acrylamide is currently the best method for industrial production of acrylamide. The main problem of using this process is: currently, membrane separation technology is used to separate acrylamide and bacteria-based impurities, but because the membrane material is not pressure-resistant Yes, when separating bacteria and acrylamide, it is easy to get dirty and clogged, which reduces the flux of the membrane and increases the separation time. At the same time, it is also easily broken, so the quality of acrylamide products cannot be guaranteed. In addition, in the post-processing of the bacteria, membrane technology cannot effectively separate the bacteria, causing most microorganisms ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C233/09C07C231/24B04B1/20
CPCY02P20/10
Inventor 黎常宏周智俊
Owner 江西昌九农科化工有限公司