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Preparation method of light colour high purity sodium polystyrene sulfonate cation exchange resin

A polystyrene sodium sulfonate and cation exchange technology, which is applied in the direction of cation exchange materials, can solve the problems of unreported process routes and methods, and achieve the effects of light color, low cost and simple process methods

Active Publication Date: 2009-06-17
溧阳常大技术转移中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are enterprises producing and supplying the above two kinds of medicinal resin raw materials at home and abroad, but there is no report about the process route and method for producing the above two kinds of medicinal resin raw materials

Method used

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  • Preparation method of light colour high purity sodium polystyrene sulfonate cation exchange resin
  • Preparation method of light colour high purity sodium polystyrene sulfonate cation exchange resin

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Embodiment 1-22

[0070]

[0071]

[0072] illustrate:

[0073] 1. * Represents a bleaching process stage, so the number in the process represents the number of process stages implemented, and also represents washing with water. For example: BP(4)P(1)P(2)* represents a process section in the bleaching process, which is continuously treated with the combined agent BP(4) and with the process P(1)P(2). BP(4)P(1)P(2)*BA(2)P(2)* means the combination of two process sections. Before the end of the process section, solid-liquid separation is required, and the obtained resin is washed with water, and then the resin is obtained through solid-liquid separation before entering the next process section. r means to repeat the implementation of a bleaching process section before *, for example: BP(2)P(1)P(2)*BF(2)P(4)*r means: BF(2)P(4) is implemented continuously Twice, it is two bleaching stages; R means to repeat the implementation of all bleaching process stages before *, for example: BP(1)P(2)*...

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Abstract

A process for preparing the light-color high-purity sodium polystyrolsulfonate cation-exchange resin through removing free styrene, bleaching and purifying features used of the solvent extracting method to remove free styrene, which includes such steps as immersing the industrial sodium polystyrolsulfonate resin in special organic solvent, and extracting solid phase while stirring or ultrasonic action.

Description

technical field [0001] The invention relates to a preparation method of a resin material, in particular to a preparation method of a light-colored high-purity polystyrene sodium sulfonate cation exchange resin with a sulfonation temperature <100°C. Background technique [0002] Sodium polystyrene sulfonate cation exchange resin is an auxiliary drug for the treatment of hyperkalemia. Its mechanism of action is to exchange sodium in the resin with potassium in the human body, that is, to absorb potassium ions in the human body and release the potassium ions in the resin. The sodium ions in the resin will be excreted together with the potassium in the body, thereby reducing the potassium content in the blood. For patients with hyperkalemia who need hemodialysis, adjuvant treatment with sodium polystyrene sulfonate can prolong the dialysis cycle and reduce the number of dialysis. It not only reduces the suffering of patients but also reduces the economic burden of patients. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J39/20
Inventor 顾浩杨光
Owner 溧阳常大技术转移中心有限公司