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High oil absorption resin and its synthesis method

A technology of high oil-absorbing resin and oleoresin, which is applied in the field of functional polymer synthetic materials, can solve the problem of small adsorption ratio and achieve good oil-absorbing performance

Inactive Publication Date: 2003-09-17
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, high oil-absorbing resins have a higher adsorption rate for halogenated alkanes, generally about 25 times, and the adsorption rate for oils with high viscosity such as heavy oils is smaller.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In the 1000 milliliter four-necked bottle that has agitator, condenser, nitrogen inlet pipe, thermometer, add 300 grams of deionized water, 0.6 gram of gelatin, activated calcium phosphate (the product of China National Petroleum Corporation Lanzhou Yinlan Company, pH value is 6-9, more than 95% of the particle size is greater than 400 mesh. The same below) 0.06 grams, heat up to 60 ° C in a water bath for 40 minutes, after the dispersant is dissolved, add 60 grams of isooctyl acrylate and 40 grams of butyl methacrylate , 0.06 grams of ethylene glycol dimethacrylate, 1.5 grams of benzoyl peroxide, heated up to 82°C under nitrogen protection, stirred rapidly for 1-1.5 hours, reduced the speed to about 380-400 rpm, and reacted for 6 hours After that, the reaction was stopped, and the precipitate was filtered and washed several times with hot water, cooled and then dried to obtain a super oil-absorbing resin. The particle size of the resin is about 0.4mm, and the degree of...

Embodiment 2

[0027] Add 300 grams of deionized water, 0.6 grams of carboxymethyl cellulose, and 0.06 grams of active calcium phosphate into a 1000 ml four-neck flask equipped with a stirrer, condenser, nitrogen inlet tube, and thermometer, and heat up to 60°C in a water bath. After 40 minutes, after the dispersant is dissolved, add 60 grams of isooctyl acrylate, 40 grams of butyl acrylate, 0.06 grams of ethylene glycol dimethacrylate, and 1.5 grams of azobisisobutyronitrile, and heat up to 82°C under nitrogen protection , stir quickly for 1-1.5 hours, reduce the speed to about 380-400 rpm, stop the reaction after 6 hours of reaction, filter and wash with hot water several times, cool and dry to obtain super oil-absorbing resin. The particle size of the resin is about 0.5mm, and the degree of crosslinking is 64%. The adsorption ratio of the resin to different oils is as follows

[0028] Oil oil absorption rate(g / g)

[0029] Xylene 26

[0030] gasoline 13

[0031] Diesel 1...

Embodiment 3

[0033] Add 300 grams of deionized water, 0.6 grams of gelatin, and 0.06 grams of activated calcium phosphate into a 1000-ml four-necked bottle equipped with a stirrer, condenser, nitrogen gas inlet tube, and thermometer, and raise the temperature to 60°C in a water bath for 40 minutes to disperse After the solvent is dissolved, add 50 grams of isooctyl acrylate, 50 grams of methyl methacrylate, 0.1 grams of diethylene glycol dimethacrylate, and 1.5 grams of benzoyl peroxide, raise the temperature to 82 °C under nitrogen protection, and stir rapidly 1-1.5 hours, reduce the rotation speed to about 380-400 rpm, stop the reaction after 6 hours of reaction, filter and wash with hot water several times, cool and dry to obtain super oil-absorbing resin. The particle size of the resin is about 0.4mm, and the degree of crosslinking is 60%. The adsorption ratio of the resin to different oils is as follows

[0034] Oil oil absorption rate(g / g)

[0035] Xylene 25

[0036]petrol ...

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Abstract

A high-oil-absorbency resin is prepared from acrylate as monomer, ethanediol acrylate as cross-linking agent, gel or cellulose as disperser, active calcium phosphate as co-disperser, and azo or oganic peroxide as trigger through suspension polymerizing. Its granularity is 0.3-2 mm and has high oil absorbency (up to 37 times).

Description

technical field [0001] The invention relates to a functional polymer synthetic material, in particular to a high oil-absorbing resin and its synthesis method. Background technique [0002] High oil-absorbing resin can absorb various oil products and can be used in environmental protection and other aspects. At present, synthetic super oil-absorbing resins have been developed both at home and abroad, but the emphases are different; the synthetic raw materials can be divided into acrylates and α-olefins, but because the latter are expensive, acrylates are mostly used for synthesis. The synthesis method mainly adopts suspension polymerization and emulsion polymerization, using acrylate substances as raw materials and oil-soluble substances as initiators for polymerization. In 1966, Dow Chemical Company of the United States applied for the patent of super oil-absorbing resin, and Japan also began to research it after the 1970s. Large companies such as Catalyst Chemical Industry...

Claims

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Application Information

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IPC IPC(8): C08F2/18C08F220/10
Inventor 刘发强乔彤森赵旭涛梁涛赵雪芹管位农陈晓艳
Owner PETROCHINA CO LTD
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