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Process for synthesizing organic polymer flocculant by controlling cooling time

An organic polymer and controlled cooling technology, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of adverse effects on human health and ecological environment, limited application range, and low scum production, so as to reduce synthesis costs and facilitate The effect of worker operation and improvement of product performance

Inactive Publication Date: 2014-04-16
刘萍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic flocculants are cheap, but they will have adverse effects on human health and the ecological environment; although organic polymer flocculants are used in a small amount, the scum output is small, the flocculation ability is strong, the flocs are easy to separate, and the effect of removing oil and suspended matter is good , but the residual monomers of this type of polymer have "three-caused" effects (causation, carcinogenicity, and mutagenesis), thus limiting its application range; microbial flocculants are easy to use and have a promising application prospect because of the absence of secondary pollution seductive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The synthetic technique of a kind of organic polymer flocculant that the present invention relates to comprises the following steps:

[0026] (a) Measure a certain amount of polyacrylamide, formaldehyde, dimethylamine, hydrochloric acid for subsequent use;

[0027] (b) Formaldehyde is placed in the reaction vessel;

[0028] (c) slowly add polyacrylamide and catalyst in reaction vessel, stir while adding;

[0029] (d) Then, the reaction vessel is placed in a water bath to be heated;

[0030] (e) Next, add dimethylamine in the reaction vessel;

[0031] (f) cooling for 45 minutes, then adding hydrochloric acid for quaternization;

[0032] (g) Finally, the target product is obtained through evaporation, concentration and filtration.

[0033] Because in the synthesis process of organic polymer flocculant, the cooling time has a great influence on the performance of the synthesized product, in order to obtain the best cooling time, the present invention has made the influ...

Embodiment 2

[0036] The only difference between this embodiment and Embodiment 1 is that in this embodiment, the cooling time is 40 minutes, and other parts of this embodiment are the same as Embodiment 1, and will not be repeated here.

Embodiment 3

[0038] The only difference between this embodiment and Embodiment 1 is that in this implementation, cooling is performed for 50 minutes, and other parts of this embodiment are the same as Embodiment 1, and will not be repeated here.

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PUM

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Abstract

The invention discloses a process for synthesizing an organic polymer flocculant. The process comprises the following steps: (a) measuring certain quantities of polyacrylamide, formaldehyde, dimethylamine and hydrochloric acid for later use; (b) placing the formaldehyde in a reaction container; (c) slowly adding the polyacrylamide and a catalyst into the reaction container and stirring with adding; (d) then placing the reaction container into water bath to heat; (e) next, adding the dimethylamine into the reaction container; (f) cooling for 45 minutes and then adding the hydrochloric acid to carry out quaternization; (g) finally, obtaining the target product by carrying out evaporation concentration and filtration. According to the invention, the qualified organic polymer flocculant can be successfully synthesized; the synthesis process is simple; the synthesis conversion rate is high; the process is convenient for workers to operate; synthesis cost of the organic polymer flocculant is greatly reduced; in the synthesizing process, by controlling the cooling time, the product performance is further improved.

Description

technical field [0001] The invention relates to a synthesis process of an organic macromolecule flocculant for controlling cooling time. Background technique [0002] According to its chemical composition, flocculants can be generally divided into two types: inorganic flocculants and organic flocculants. Inorganic flocculants include inorganic coagulants and inorganic polymer flocculants; organic flocculants include synthetic organic polymer flocculants, natural organic polymer flocculants and microbial flocculants. [0003] Organic macromolecular flocculants appeared in the 1950s, they have broad application prospects and develop very rapidly. It has been used in water purification, water / oil system demulsification, oily wastewater treatment, wastewater recycling and sludge dehydration, etc.; it can also be used as a mud treatment agent, selective water blocking agent, and water injection thickener in the oilfield development process , softener in textile printing and dye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F20/56C08F8/44C02F1/56
Inventor 刘萍
Owner 刘萍