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A kind of clean production process of 122 type cation exchange resin

A cation exchange and clean production technology, applied in cation exchange, ion exchange, chemical instruments and methods, etc., can solve the problems of difficult treatment of production wastewater and high operating costs, and achieve the solution of difficult treatment, avoid environmental pollution, and treat low cost effect

Active Publication Date: 2022-08-05
石家庄惠洁科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a clean production process of 122-type cation exchange resin, which solves the problems in the prior art that the production wastewater of 122-type cation-exchange resin is difficult to treat and the operation cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A clean production process of 122-type cation exchange resin, comprising the following steps:

[0029] S1, salicylic acid, phenol, and formaldehyde are polymerized to emulsification under acidic conditions, and then phenol and formaldehyde are added to polymerize under alkaline conditions to form prepolymers. Turbine oil is used as the oil phase medium, and reverse-phase polymerization is performed to form spheres, and the surface active After the agent is dissolved in hot water, it is used as a water washing solution, and the turbine oil on the surface of the sphere is washed away, and the solid-liquid separation is performed to obtain the first solid phase and the first liquid phase. Cation exchange resin, wherein the volume fraction of formaldehyde is 30%;

[0030] S2, adsorb the first liquid phase with an adsorbent material, the adsorbent material is activated carbon, the turbine oil in the first liquid phase is adsorbed on the adsorbent material, and the rest is su...

Embodiment 2

[0036] A clean production process for 122-type cation exchange resin, comprising the following steps:

[0037] S1, salicylic acid, phenol, and formaldehyde are polymerized to emulsification under acidic conditions, and then phenol and formaldehyde are added to polymerize under alkaline conditions to form prepolymers. Turbine oil is used as the oil phase medium, and reverse-phase polymerization is performed to form spheres, and the surface active After the agent is dissolved in hot water, it is used as a water washing solution, and the turbine oil on the surface of the sphere is washed away, and the solid-liquid separation is performed to obtain the first solid phase and the first liquid phase. Cation exchange resin, wherein the volume fraction of formaldehyde is 30%;

[0038] S2, adsorb the first liquid phase with an adsorbent material, the adsorbent material is zeolite, the turbine oil in the first liquid phase is adsorbed on the adsorbent material, and the rest is surfactant...

Embodiment 3

[0044] A clean production process for 122-type cation exchange resin, comprising the following steps:

[0045] S1, salicylic acid, phenol, and formaldehyde are polymerized to emulsification under acidic conditions, and then phenol and formaldehyde are added to polymerize under alkaline conditions to form prepolymers. Turbine oil is used as the oil phase medium, and reverse-phase polymerization is performed to form spheres, and the surface active After the agent is dissolved in hot water, it is used as a water washing solution, and the turbine oil on the surface of the sphere is washed away, and the solid-liquid separation is performed to obtain the first solid phase and the first liquid phase. Cation exchange resin, wherein the volume fraction of formaldehyde is 30%;

[0046] S2, adsorb the first liquid phase with an adsorbent material, the adsorbent material is alumina, the turbine oil in the first liquid phase is adsorbed on the adsorbent material, and the rest is surfactant...

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PUM

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Abstract

The invention belongs to the technical field of ion exchange resins, and proposes a clean production process for 122-type cation exchange resin, comprising the following steps: carrying out solid-liquid separation on the washed waste liquid to obtain a first solid phase and a first liquid phase; One liquid phase is adsorbed with adsorbent material and the remaining liquid is heated and recycled as washing liquid; the first solid phase is washed with alkaline liquid to obtain alkaline washing wastewater, and the second solid phase and the second liquid phase are obtained after solid-liquid separation, and the second solid phase and the second liquid phase are obtained. The liquid phase is adsorbed with a targeted adsorbent and then decomposed with formaldehyde, and the decomposed liquid is made into a phenol raw material and returned to participate in the polycondensation reaction; the second solid phase is washed with an acid solution to obtain pickling wastewater, and the third solid phase and the third solid phase are obtained after solid-liquid separation. Liquid phase; the third liquid phase is adsorbed with a targeted adsorbent and then decomposed with formaldehyde, and the decomposed liquid is made into a salicylic acid raw material and returned to participate in the polycondensation reaction. Through the above technical solution, the problems of high difficulty in treatment of wastewater produced by 122-type cation exchange resin and high operating cost in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of ion exchange resin, and relates to a clean production process of 122 type cation exchange resin. Background technique [0002] Salicylic acid-phenol-formaldehyde (type 122) cation exchange resin is a weakly acidic phenolic cation exchange resin, mainly used for decolorization of antibiotics such as streptomycin, oxytetracycline, tetracycline, and decolorization and purification of monosodium glutamate and sugars , recovery of vitamin B12 protease, removal of divalent ions such as Ca(II) and Mg(II) in water, etc. This resin contains a hydrophilic skeleton structure, functional groups such as -OH and -COOH, and has the characteristics of high selectivity of chelating resin; the raw material is cheap, the synthesis process is simple, and the economy is good. The production of 122-type cation exchange resin is to prepolymerize salicylic acid, phenol and formaldehyde to obtain a prepolymerized liquid with a c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J39/19
CPCB01J39/19
Inventor 吕志芦远卓
Owner 石家庄惠洁科技有限公司
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