Polymer absorbing agent and preparation thereof

An absorbent, polymer technology, applied in chemical instruments and methods, other chemical processes, etc.

Inactive Publication Date: 2011-04-13
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of polymer absorbent that can quickly absorb benzene and its aromatic compounds, overcome the low absorption capacity of activated carbon in the prior art, and acrylic acid The disadvantage of high material cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 40 g of distilled water to a three-necked flask equipped with a reflux condenser, and, under the condition of 70° C., stir nitrogen to remove oxygen. After 30 minutes, 10.0 g of styrene and 0.15 g of methacryloxypropyltrimethoxy silicon were mixed and added, then 0.070 g of initiator potassium persulfate was added, and 10 g of distilled water was added. The reaction was stirred for 2h. Suction filtration, drying to obtain a white solid polymer sample.

[0022] The polymer sample absorbed 5.1 g of benzene per gram at 2 minutes and 5.9 grams per gram of benzene at 2 hours.

Embodiment 2

[0024] Add 40 g of distilled water to a three-necked flask equipped with a reflux condenser, and, under the condition of 70° C., stir nitrogen to remove oxygen. After 30 minutes, 10.0 g of styrene and 0.35 g of methacryloxypropyltrimethoxy silicon were mixed and added, then 0.150 g of initiator potassium persulfate was added, and 10 g of distilled water was added. Reaction 2h. Suction filtration, drying to obtain a white solid polymer sample.

[0025] The polymer sample absorbed 6.3 grams of benzene per gram at 2 minutes and 12.9 grams per gram of benzene at 2 hours.

Embodiment 3

[0027] Add 50 g of distilled water into a three-necked flask equipped with a reflux condenser, and, at 70° C., stir and blow nitrogen to remove oxygen. After 30 minutes, 10 g of styrene and 0.37 g of methacryloxypropyltrimethoxy silicon were mixed and added, and 0.100 g of initiator potassium persulfate was added, followed by 10 g of distilled water. Reaction 2h. Suction filtration, drying to obtain a white solid polymer sample.

[0028] The polymer sample absorbs 7.2g of benzene per gram in 2 minutes, 14.3g per gram of benzene within 2 hours, and 11.5g per gram of benzene within 3 hours;

[0029] The polymer sample absorbs 8.3g of toluene per gram within 2 hours, and absorbs 11.4g of toluene per gram within 3 hours;

[0030] The polymer sample absorbs 13.2g of xylene per gram within 2 hours and 18.1g of xylene per gram within 3 hours;

[0031] The polymer sample absorbed 7.7 g of nitrobenzene per gram within 2 hours and 15.6 g per gram of nitrobenzene within 3 hours.

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Abstract

The invention discloses a polymer absorbent and the preparation method; wherein, the absorbent comprises the following components in parts by weight (pbw): 10 portions of styrene, 0.10-0.20 portion of methacryloxypropyltrimethoxysilane, and 0.05-0.20 portion of initiator. The absorbent preparation method is characterized in that: styrene and methacryloxypropyltrimethoxysilane are copolymerized randomly in water, so as to acquire the absorbent. The polystyrene material prepared by means of the preparation method in the invention has a mass multiple of 11 for absorbing benzene, a mass multiple of 14 for absorbing toluene, a mass multiple of 18 for absorbing xylene, and a mass multiple of 15 for absorbing nitrobenzene. The absorbent produced according to the preparation method in the invention has the advantages of high multiple of absorbing benzene and the aromatic compounds of benzene, shorter absorbing time, convenient operation, and lower costs of material; therefore, the absorbent can be applied in the emergent absorbing treatment for benzene compounds, as well as the adsorbing clearing treatment for the polluted rivers, lakes, and sea areas.

Description

technical field [0001] The invention relates to a polymer absorbent and a preparation method thereof, in particular to a polymer absorbent for rapidly absorbing benzene and its aromatic compounds, which can be used for emergency absorption treatment of benzene compounds and pollution control The rivers, lakes, seas, etc. are subjected to adsorption and removal treatment. Background technique [0002] Benzene pollution has attracted widespread attention because of its strong carcinogenicity. The World Health Organization declares that each person contains 1 μg / m of benzene 3 In a continuous environment, leukemia in the bone marrow can reach a risk level of 4.4-7.5. The pollution of benzene and its aromatic compounds is becoming more and more serious, directly endangering people's lives. The traditional activated carbon adsorption of such substances not only has a low adsorption capacity, but also has certain harm to the environment. On November 13, 2005, a fire and explos...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B01J20/26B01J20/30
Inventor宫铭张世平宫永宽
OwnerNORTHWEST UNIV