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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  • Abstract
  • Description
  • Claims
  • Application Information

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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 p

Method used

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Examples

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Example Embodiment

[0022] Example 1:

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

[0024] (1) Place acrylamide (309g) and sodium styrene sulfonate (206g) with a mass ratio of 1.5:1 in a reaction flask to prepare an aqueous solution with a mass fraction of 30%, and add anionic monomer to the aqueous solution. The templating 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) Adjust the pH of the above solution to 5 with hydrochloric acid, and then pour nitrogen into the reaction flask at 20°C for 15 minutes to remove the oxygen in the reaction flask, then seal the mouth of the flask and place it in an ultrasonic reactor at 30~ Ultrasonic reaction at 35°C for 20 minutes. After completion, place the reaction flask in a water bath at 50°C in a constant tempe...

Example Embodiment

[0028] Example 2:

[0029] A preparation method of anionic template flocculant TPAS includes the following steps:

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

[0031] (2) Adjust the pH of the above solution to 5 with hydrochloric acid, and then pour nitrogen into the reaction flask at 20°C for 15 minutes to remove the oxygen in the reaction flask, then seal the mouth of the flask and place it in an ultrasonic reactor at 30~ Ultrasonic reaction at 35°C for 20 minutes. After completion, place the reaction flask in a water bath at 50°C in a constant temperature water bath for ...

Example Embodiment

[0033] Example 3:

[0034] A preparation method of anionic template flocculant TPAS includes the following steps:

[0035] (1) Place 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 templating agent polypropylene ammonium chloride (93.5g) with the mass ratio of bulk sodium styrene sulfonate of 0.45:1, and the initiator VA044 (0.206g) which accounts for 0.03% of the mass of acrylamide and sodium styrene sulfonate;

[0036] (2) Adjust the pH of the above solution to 8 with sodium hydroxide, and then pour nitrogen into the reaction flask at 20°C for 15 minutes to remove the oxygen in the reaction flask, then seal the mouth of the flask and place it in the ultrasonic reactor. Ultrasonic reaction at 35~40℃ for 20min. After completion, put the reaction flask in a constant temperature water bath at 55℃ for 10min for maturation. The ultrasonic power is 30W and the ultrasoni...

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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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