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Method of separating target substance according to membrane separation and apparatus therefor

A technology of a target substance and a separation method, which is applied in the field of separation and device of target substances separated by membranes, can solve the problems of undisclosed methods of controlling selectivity, that is, the permeation tendency of target substances, and achieves a waste-free separation process, which is difficult to Thermal decomposition, effect of simple separation process

Active Publication Date: 2012-07-18
TSUKISHIMA KANKYO ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All of them exemplify the possibility of changing and adjusting the separation process", but do not disclose the method of controlling the selectivity, that is, the permeation tendency of the target substance (Patent Document 1 [0064])

Method used

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  • Method of separating target substance according to membrane separation and apparatus therefor
  • Method of separating target substance according to membrane separation and apparatus therefor
  • Method of separating target substance according to membrane separation and apparatus therefor

Examples

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Effect test

Embodiment 1

[0302] In this example, an example will be described in which a polyglycerol mixture containing a polyglycerol mixture containing glycerin, diglycerol, triglycerol, and tetraglycerin or higher, which is generally available as a decaglycerol mixture, is used as the stock solution and passed through a membrane Carry out purification, and record the sugar content of the permeate from the membrane separation device using nano-membrane in sequence. When the sugar content just reaches the specified value, reduce the operating pressure and reduce the flow rate of the permeate. For raw materials, glycerin and diglycerol are reduced to the original less than one tenth.

[0303]

[0304] Raw material composition Moisture 28.7wt%

[0305] Total Polyglycerol Concentration Equilibrium

[0306] Average degree of polymerization 10 polymers

[0307]

[0308] Use a concentrator to remove moisture to obtain a concentrated sample. Prepare in advance the internal standard solution obtained...

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PUM

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Abstract

A separation apparatus with which, in the event of diafiltration using a membrane, accurate separation of a target substance can be carried out by conducting monitoring / regulation of the tendency of permeation of the target substance with the use of analytical values and measurement values indicating the status of separation by the membrane apparatus, such as the physical values and concentrations of permeate liquid and circulating liquid / internal circulating liquid. In a diafiltration in which a washing liquid is added to a raw liquid containing multiple target substances and a target substance is drawn out into a permeate liquid obtained from the membrane separation apparatus so as to isolate the same from the other target substances remaining in the residue liquid, the tendency of target substance permeation is controlled by carrying out regulation or control within a preset region of at least one operating item selected from among permeate liquid flow rate and with respect to the membrane separation apparatus, operating pressure, operating temperature, circulating liquid concentration and circulating liquid amount with the use of the separation status index and / or progress course index for separating operation.

Description

technical field [0001] The present invention relates to a membrane separation method and device for separating liquid into permeate and raffinate (non-permeate) by using membrane. Specifically, it relates to the use of membrane separation technology widely carried out in the fermentation industry, pharmaceutical industry, refined sugar industry, amino acid industry, food industry, dye industry, pigment industry, chemical industry, metal refining industry, waste treatment industry, etc. A method and device for separating and recovering valuable substances of interest or salts of impurities contained in a treatment liquid. More specifically, when treating liquid and solid raw materials in a liquid state, and separating, removing, and purifying target substances in the liquefied stock solution, a combination of a contact process with a washing liquid or an extract, etc. and a membrane separation process, A method and device for efficiently separating and recovering target substa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/12B01D61/02B01D61/14B01D61/22B01D61/58B01D65/02B01D69/04C07B63/00C07C41/34C07C43/13
CPCB01D65/02B01D61/027B01D2317/022B01D2315/12B01D61/12B01D2315/16B01D61/145B01D61/22C07C41/36C07B63/00
Inventor 立石泰弘
Owner TSUKISHIMA KANKYO ENG
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