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Preparation method of water quality stabilizer

A technology of water quality stabilizer and mass ratio, applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc., can solve the problem of excessive phosphorus content in circulating water sewage and eutrophication in circulating cooling water and other problems, to achieve the effects of fine grain size, enhanced adsorption capacity, and reduced phosphorus content

Inactive Publication Date: 2018-09-14
赵建平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a preparation method of a water quality stabilizer for the current phosphorus-containing water quality stabilizer that causes eutrophication of circulating cooling water and excessive phosphorus content in circulating water sewage after use.

Method used

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  • Preparation method of water quality stabilizer

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preparation example Construction

[0015] A preparation method of a water quality stabilizer, comprising the steps of:

[0016] (1) Take pimelic acid and add thionyl chloride at a mass ratio of 2~4:5~7, heat up to 60~70°C, stir and mix for 1~2h, distill under reduced pressure to obtain a reduced pressure distillate, take the reduced pressure distillate according to Add bromine at a mass ratio of 1:1, stir and mix for 3~4 hours, heat up to 70~80°C for 2~3 hours, and let stand for 10~12 hours to obtain a standing liquid. In terms of parts by mass, take 20~30 parts of the standing liquid , 18~24 parts of diethyl phosphite, and 8~14 parts of pyridine were mixed, heated to 115~122°C and stirred and mixed for 3~4 hours to obtain a stirred mixture, distilled under reduced pressure, cooled to room temperature to obtain a cooled product;

[0017] (2) Take the cooling material and add hydrochloric acid with a mass fraction of 37% according to the mass ratio of 10:3, stir and mix at 75~80°C for 4~5h, distill under reduced...

Embodiment 1

[0021] A preparation method of a water quality stabilizer, comprising the steps of:

[0022] (1) Take pimelic acid and add thionyl chloride at a mass ratio of 2:5, heat up to 60°C, stir and mix for 1 hour, distill under reduced pressure to obtain a vacuum distillate, take the vacuum distillate and add bromine at a mass ratio of 1:1, Stir and mix for 3 hours, heat up to 70°C for 2 hours, and stand still for 10 hours to obtain a standing liquid. In terms of parts by mass, take 20 parts of standing liquid, 18 parts of diethyl phosphite, and 8 parts of pyridine to mix, and heat up to 115°C Stir and mix for 3 hours to obtain a stirred mixture, distill under reduced pressure, and cool to room temperature to obtain a cooled product;

[0023] (2) Take the cooling material and add hydrochloric acid with a mass fraction of 37% according to the mass ratio of 10:3, stir and mix at 75°C for 4h, distill under reduced pressure, then keep warm at 40°C for 3h, rotary evaporate, and concentrate...

Embodiment 2

[0027] A preparation method of a water quality stabilizer, comprising the steps of:

[0028] (1) Take pimelic acid and add thionyl chloride at a mass ratio of 4:7, heat up to 70°C, stir and mix for 2 hours, distill under reduced pressure to obtain a vacuum distillate, take the vacuum distillate and add bromine at a mass ratio of 1:1, Stir and mix for 4 hours, heat up to 80°C for 3 hours, and stand for 12 hours to obtain a standing liquid. In terms of parts by mass, take 30 parts of standing liquid, 24 parts of diethyl phosphite, and 14 parts of pyridine to mix, and heat up to 122°C Stir and mix for 4 hours to obtain a stirred mixture, distill under reduced pressure, and cool to room temperature to obtain a cooled product;

[0029] (2) Take the cooling material and add hydrochloric acid with a mass fraction of 37% according to the mass ratio of 10:3, stir and mix at 80°C for 5h, distill under reduced pressure, then keep warm at 50°C for 4h, rotary evaporate, concentrate to obta...

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Abstract

The invention discloses a preparation method of a water quality stabilizer, belonging to the field of chemical industry. The method adopts polyaspartic acid as a raw material and utilizes the characteristics that the polyaspartic acid is easily decomposed and has a corrosion inhibition effect; a primary amine bond in aminosulfonate 5-aminoorotic acid is used for performing ring opening on the polyaspartic acid, and maleic anhydride and urea are added, so that a graft is synthesized; the hetero atoms contained in a molecular structure of the 5-aminoorotic acid are well adsorbed on the surface of carbon steel, so that a layer of protective film is formed, and a reaction of interfacial ions is prevented; furthermore, the 5-aminoorotic acid can destroy the activity of enzymes and proteins in bodies of microorganisms and interrupt the respiration of the microorganisms, so that the synthesis of nucleic acids in biological genetic vectors is hindered, the growth and reproduction of the microorganisms are inhibited, the cell walls of microorganisms are destroyed, the internal and external environments of the microorganisms are imbalanced, and the aim of inhibiting the growth and eutrophication of algae is achieved. The water quality stabilizer provided by the invention solves the problem that the current phosphorus-containing water quality stabilizer causes eutrophication of the circulating cooling water, thus enabling the phosphorus content of the circulating sewage to exceed the standard after use.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a preparation method of a water quality stabilizer. Background technique [0002] In the circulating cooling water system, fouling and corrosion are common problems, which seriously affect the economic benefits of the product. In recent years, water quality stabilization technology has developed rapidly at home and abroad, and it has prominently solved the problems of scaling and corrosion in circulating cooling water. The water quality stabilizer is the agent added to the circulating cooling water to prevent the cooling water from corroding and scaling the equipment. It can form a stable complex with calcium, magnesium ions and other scale-forming substances in water. It is easily soluble in water and plays a good role in chelation, dispersion and corrosion inhibition, preventing scaling and loosening the old scale layer, which is easy to clean dirt. It has good c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/14
CPCC02F1/50C02F5/14C02F2303/22
Inventor 赵建平庄文琴刘红妹
Owner 赵建平
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