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Method for preparing anion template flocculant TPAS (Tissue Plasmogen Activator)

A flocculant and anion technology, which is applied in the field of preparation of anion template flocculant TPAS, can solve problems such as disordered arrangement, poor flocculation effect, and low proportion of anion monomers, and achieve concentrated distribution, better product properties and stable product properties. Effect

Inactive Publication Date: 2018-03-06
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a preparation method of an anionic template flocculant TPAS, which solves the problem that the proportion of anionic monomers on the polymer chain of the existing anionic flocculant TPAS is small and the arrangement is chaotic, resulting in poor flocculation effect The problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of the anionic template flocculant TPAS of the present embodiment comprises the following steps:

[0024] (1) Put acrylamide (309g) and sodium styrene sulfonate (206g) with a mass ratio of 1.5:1 in a reaction bottle to prepare an aqueous solution with a mass fraction of 30%, and add an anionic monomer to the aqueous solution The template agent polypropylene ammonium chloride (93.5g) with a mass ratio of sodium styrene sulfonate of 0.45:1, and the initiator VA044 (0.0515g) accounting for 0.01% of the mass of acrylamide and sodium styrene sulfonate;

[0025] (2) Use hydrochloric acid to adjust the pH of the above solution to 5, and then pass nitrogen gas into the reaction bottle at 20°C for 15 minutes to eliminate the oxygen in the reaction bottle, then seal the bottle mouth, and place it in an ultrasonic reactor at 30~ Ultrasonic reaction at 35°C for 20 minutes. After the end, place the reaction bottle in a water bath at 50°C for 10 minutes at a co...

Embodiment 2

[0029] A preparation method of anionic template flocculant TPAS, comprising the steps of:

[0030] (1) Put acrylamide (309g) and sodium styrene sulfonate (206g) with a mass ratio of 1.5:1 in a reaction bottle to prepare an aqueous solution with a mass fraction of 40%, and add an anionic monomer to the aqueous solution The template agent polypropylene ammonium chloride (74.8g) with a mass ratio of sodium styrene sulfonate of 0.36:1, and the initiator VA044 (0.103g) accounting for 0.02% of the mass of acrylamide and sodium styrene sulfonate;

[0031] (2) Use hydrochloric acid to adjust the pH of the above solution to 5, and then pass nitrogen gas into the reaction bottle at 20°C for 15 minutes to eliminate the oxygen in the reaction bottle, then seal the bottle mouth, and place it in an ultrasonic reactor at 30~ Ultrasonic reaction at 35°C for 20 minutes. After the end, place the reaction bottle in a water bath at 50°C for 10 minutes at a constant temperature for aging. The ultr...

Embodiment 3

[0034] A preparation method of anion template flocculant TPAS, comprises the steps:

[0035] (1) Put acrylamide (480.0g) and sodium styrene sulfonate (206g) with a mass ratio of 2.33:1 in a reaction flask to prepare an aqueous solution with a mass fraction of 40%. The template agent polypropylene ammonium chloride (93.5g) with a mass ratio of 0.45:1 to sodium styrene sulfonate, and the initiator VA044 (0.206g) accounting for 0.03% of the mass of acrylamide and sodium styrene sulfonate;

[0036](2) Use sodium hydroxide to adjust the pH of the above solution to 8, and then pass nitrogen gas into the reaction bottle at 20°C for 15 minutes to eliminate the oxygen in the reaction bottle, then seal the bottle mouth, and place it in an ultrasonic reactor at Ultrasonic reaction at 35~40°C for 20 minutes. After the end, place the reaction bottle in a water bath at 55°C for 10 minutes at a constant temperature for aging. The ultrasonic power is 30W and the ultrasonic frequency is 40KHz;...

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Abstract

The invention discloses a method for preparing an anion template flocculant TPAS (Tissue Plasmogen Activator). The method comprises the following steps: with ultrasonic waves as an initialization mode, and by taking acrylamide and sodium p-styrenesulfonate as main raw materials, and polypropylene ammonium chloride PAAC (Polyallyl Acetate) as a template agent, preparing a water solution, adjustingthe pH value by using sodium hydroxide or hydrochloric acid, introducing a sufficient amount of nitrogen, initializing a polymerization reaction in an ultrasonic reactor, after the reaction is completed, performing aging treatment in a water bath pot, taking out a polymer obtained through synthesis, cleaning with alcohol, drying, and powdering, thereby obtaining the anion template flocculant TPAS.The method is simple in process procedure, short in reaction cycle, free of damage to instrument equipment, safe and environmental-friendly, free of toxic or side effect, low in cost, excellent in product property, and good in flocculation effect in treating hematite wastewater.

Description

technical field [0001] The invention belongs to the field of flocculant preparation, in particular to a preparation method of an anionic template flocculant TPAS. Background technique [0002] With the mining of iron ore and the establishment and development of various smelters and metal processing plants, the iron and steel industry has made an important contribution to economic growth, but the industrial wastewater it produces has seriously polluted the water environment and threatened human health. So it is imminent to deal with high turbidity hematite wastewater. At present, organic polymer flocculants are mainly used to play the role of bridging and netting to remove and purify the suspended solids. [0003] Anionic flocculant TPAS is a negatively charged organic polymer flocculant. According to different production processes, its synthesis method can be divided into aqueous solution polymerization, micellar polymerization, inverse emulsion polymerization, inverse micr...

Claims

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Application Information

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IPC IPC(8): C08F220/56C08F212/14C02F1/56
CPCC02F1/56C08F220/56C08F212/14
Inventor 郑怀礼张世欣唐晓旻肖伟龙陈新梁建军冯力
Owner CHONGQING UNIV
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