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Flocculant and preparation method thereof

A flocculant and emulsifier technology, applied in the field of flocculant and its preparation, can solve the problems of poor water purification effect of flocculant, not environmental protection, etc., and achieve the effects of wide application range, improved water purification performance, and good water purification effect

Inactive Publication Date: 2011-09-14
湖北中楚化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a high-efficiency broad-spectrum flocculant and its preparation method to solve the technical problems of the existing flocculants such as poor water purification effect, environmental protection, and certain limitations in use.

Method used

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  • Flocculant and preparation method thereof

Examples

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Effect test

Embodiment 1

[0015] Example 1: First prepare cationic polyacrylamide: pour 6 parts (500g each, the same below) of acrylamide into the reaction kettle, then pour 120 parts of deionized water, stir until completely dissolved, then add 2 parts of Allyl dimethyl ammonium chloride, 0.2 parts of ammonium persulfate, controlled temperature at 85°C, and stirred for 1 hour to obtain cationic polyacrylamide for use.

[0016] Then prepare polysilicon aluminum ferric sulfate: dissolve 13 parts (500g each, the same below) of aluminum sulfate octadecahydrate in deionized water at a ratio of 1:2, and dissolve 13 parts of ferric sulfate hydrate in a ratio of 1:4 in In deionized water, then add aluminum sulfate solution and iron sulfate solution into the reaction kettle according to the weight ratio, control the temperature at 35°C, and add 18 parts of polysilicic acid with a pH value of 4 in turn under rapid stirring, 95 parts of deionized water and 5 parts of sodium hydroxide were stirred for 1 hour to o...

Embodiment 2

[0018] Example 2: First prepare cationic polyacrylamide: pour 15 parts (500g each, the same below) of acrylamide into the reaction kettle, then pour 150 parts of deionized water, stir until completely dissolved, then add 1 part of Allyl dimethyl ammonium chloride, 0.1 part of ammonium persulfate, the temperature is controlled at 75°C, and after stirring for 1 hour, a cationic polyacrylamide is obtained for use.

[0019] Then prepare polysilicon aluminum ferric sulfate: 21 parts (500g per part, the same below) of aluminum sulfate octadecahydrate are dissolved in deionized water in a ratio of 1:2, and 7 parts of ferric sulfate hydrate are dissolved in a ratio of 1:4 in In deionized water, then add aluminum sulfate solution and iron sulfate solution into the reaction kettle according to the weight ratio, control the temperature at 45°C, and add 10 parts of polysilicic acid with a pH value of 4 in turn under rapid stirring, 130 parts of deionized water and 2.5 parts of sodium hydr...

Embodiment 3

[0021] Example 3: First prepare cationic polyacrylamide: pour 10 parts (500g each, the same below) of acrylamide into the reaction kettle, then pour 135 parts of deionized water, stir until completely dissolved, then add 1.5 parts of Allyl dimethyl ammonium chloride, 0.3 parts of ammonium persulfate, the temperature is controlled at 75°C, and after stirring for 1 hour, a cationic polyacrylamide is obtained for use.

[0022] Then prepare polysilicon aluminum ferric sulfate: 17 parts (500g per part, the same below) of aluminum sulfate octadecahydrate are dissolved in deionized water in a ratio of 1:2, and 10 parts of ferric sulfate hydrate are dissolved in a ratio of 1:4 in In deionized water, then add aluminum sulfate solution and iron sulfate solution into the reaction kettle according to the weight ratio, control the temperature at 40°C, and add 15 parts of polysilicic acid with a pH value of 4 in turn under rapid stirring, 115 parts of deionized water and 4 parts of sodium h...

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Abstract

The invention relates to a flocculant, which is mainly prepared by the following compositions in weight percentage: 40 to 50 percent of cationic polyacrylamide, 0.8 to 1.2 percent of OP-10 emulsifier, 8 to 13 percent of polysilicic aluminum iron sulfate, 0.8 to 1.2 percent of sodium hydroxide and 35 to 48 percent of vaal water. The preparation method for the high-efficiency broad spectrum flocculant is as follows: the cationic polyacrylamide, the polysilicic aluminum iron sulfate, the OP-10 emulsifier and the vaal water are added into a reaction kettle of a vacuum dispersion machine and stirred for 15 to 20 minutes; and the sodium hydroxide is added into an emulsifiable solution and continuously stirred for 20 to 30 minutes. The high-efficiency broad spectrum flocculant simultaneously has the advantages of an inorganic flocculant and an organic flocculant and simultaneously overcomes the inherent defects of the inorganic flocculant and the organic flocculant. The high-efficiency broad spectrum flocculant has wide application scope, has good water purifying effect on water quality with various concentrations, nonferrous wastewater and a plurality of kinds of industrial wastewater, and can be widely used for purification treatment of industrial waste water in the printing and dyeing, paper-making, chemical industry and so on.

Description

technical field [0001] The invention relates to a flocculant, in particular to a flocculant and a preparation method thereof. Background technique [0002] Water is the origin of life and the substance on which human beings and living things depend. At present, the problem of water pollution in the world is becoming more and more serious, and the problem of water treatment is also becoming more and more serious. In order to solve the problem of water pollution, the flocculant precipitation method has been widely used as a low-cost water treatment method. The use of flocculants for water treatment can reduce the sensory indicators such as turbidity and chromaticity of raw water, and remove various high-molecular organic substances, heavy metals and radioactive substances. The flocculants currently used in wastewater treatment are usually single flocculants, such as inorganic salt flocculants, organic polymer flocculants, etc. Inorganic salt flocculants have great disadvant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52
Inventor 唐绍儒
Owner 湖北中楚化工有限责任公司
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