Method for preparing adsorbent resin with ultra-high specific surface area

A specific surface area and adsorption resin technology, which is applied in the field of polymer adsorption resin preparation, can solve the problems of adsorption resin application limitations, high cost of cephalosporins, and increased burden on drug users, and achieve easy large-scale industrialization, pore size and distribution. Uniform, low-cost results

Active Publication Date: 2011-06-15
ANHUI WANDONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, various conventional ion exchange resin technologies have been basically perfected. With the application of adsorption resins in medicine, food, bioengineering, hydrometallurgy, chemical environmental protection, nuclear energy and other industrial fields, the demand for adsorption resins However, most of the adsorption resins are based on the suspension polymerization preparation technology, and the specific surface area is generally 1000m 2 / g or less, so that the application of adsorption resin is limited to a certain extent
[0004] The pharmaceutical industry has a huge demand for adsorption resins when producing cephalosporins. Due to the high cost of producing such adsorption resins, the cost of producing cephalosporins is also very high, which increases the burden on drug users and is not conducive to people's livelihood.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Prepare super large specific surface area adsorption resin according to the following method:

[0020] (1) Suspension polymerization: Stir and mix 81g styrene, 119g divinylbenzene and 105g toluene porogen for 30 minutes to obtain a comonomer mixture; add 1000g saturated saline and 16g polyvinyl alcohol dispersant to the reactor and stir After raising the temperature to 50-55°C, add the comonomer mixture, stir slowly to raise the temperature to 80°C, and keep it warm for 2 hours; continue to raise the temperature to 85°C, and keep it warm for 4 hours; then continue to raise the temperature to 95-100°C, and keep it warm for 6 hours; then Cool down to below 60°C, wash with hot water with a temperature higher than 80°C, and obtain the crude copolymer;

[0021] (2) Extraction of porogen: Add No. 6 extraction solvent oil to the crude copolymer above, and repeat the extraction until the porogen is extracted, then rinse the copolymer with a large amount of distilled water, and ...

Embodiment 2

[0024] Prepare super large specific surface area adsorption resin according to the following method:

[0025] (1) Suspension polymerization: Stir and mix 40g styrene, 160g divinylbenzene and 105g toluene porogen for 30 minutes to obtain a comonomer mixture; add 1000g saturated saline and 16g polyvinyl alcohol dispersant to the reactor and stir After raising the temperature to 50-55°C, add the comonomer mixture, stir slowly to raise the temperature to 80°C, and keep it warm for 2 hours; continue to raise the temperature to 85°C, and keep it warm for 4 hours; continue to raise the temperature to 95-100°C, and keep it warm for 6 hours; then cool down To below 60°C, wash with hot water with a temperature higher than 80°C to obtain a crude copolymer;

[0026] (2) Extraction of porogen: Add No. 6 extraction solvent oil to the crude copolymer above, and repeat the extraction until the porogen is extracted, then rinse the copolymer with a large amount of distilled water, and then use ...

Embodiment 3

[0029] Prepare super large specific surface area adsorption resin according to the following method:

[0030] (1) Suspension polymerization: 40g styrene, 160g divinylbenzene, 120g toluene and 130.5g n-heptane were mixed for 30 minutes to obtain a comonomer mixture; add 1150g Saturated common salt water and 16g of polyvinyl alcohol dispersant, stirred and heated to 50°C, then added the comonomer mixture, slowly stirred and heated to 80°C, kept for 2 hours; continued to heat up to 85°C, kept for 4 hours; continued to heat up to 95-100°C, heat preservation for 6 hours; then lower the temperature to below 60°C, wash with hot water with a temperature higher than 80°C, and obtain the crude copolymer;

[0031] (2) Extraction of porogen: Add No. 6 extraction solvent oil to the crude copolymer above, and repeat the extraction until the porogen is extracted, then rinse the copolymer with a large amount of distilled water, and then use hot air not higher than 80°C Dry until the water co...

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PUM

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Abstract

The invention discloses a method for preparing an adsorbent resin with ultra-high specific surface area. The method is characterized by suspension polymerization in a styrene / divinylbenzene copolymerization system and a special porogenic agent and self-crosslinking reaction in the presence of a catalyst in sequence. The method has the advantages of simple process and low cost and is easy for scale industrialization. The obtained product has ultra-high specific surface area, uniform pore size and distribution and high and stable quality, is suitable for the fields with high requirement for specific surface areas of adsorbent resins and has extensive application prospect.

Description

technical field [0001] The invention relates to a preparation method of a polymer adsorption resin, more specifically, a preparation method of an adsorption resin with a super large specific surface area. Background technique [0002] As the basic theory and technology of modern industry, the development of adsorption separation science and technology has been widely used in the fields of medicine, food, bioengineering, hydrometallurgy, chemical environmental protection and nuclear energy. As a new class of functional polymer materials with excellent adsorption and desorption properties, macroporous adsorption resins are attracting widespread attention from academia and industry. Based on the diversity of chemical and physical structures, adsorption resins can be targeted for molecular design, synthesis, modification and selection of application conditions according to actual uses. At present, many kinds of special adsorption resins with specific purposes have been develope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/36C08F212/08C08F2/20C08J9/28C08J3/24B01J20/26B01J20/28B01J20/30
Inventor 姚能平刘建荣徐长伟夏庆高
Owner ANHUI WANDONG CHEM
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