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Double-machine flocculant

An inorganic flocculant and flocculant technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of complex water treatment procedures, large amount of flocculant added, high cost of water treatment, etc., and achieve excellent flocculation effect and dosage The effect of less and cost reduction

Inactive Publication Date: 2003-12-10
ZIGONG QIANYE ENVIRONMENTAL PROTECTION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the development of industry, the quality of water is required to be higher. At present, the most common and effective method is to add organic flocculant first, then add inorganic flocculant to achieve excellent water treatment effect. For the settled sludge For dehydration, a large amount of filter aid needs to be added, so there are disadvantages such as large amount of flocculant added, complicated water treatment procedure, high water treatment cost, and poor effect; Coagulant, mainly composed of calcium aluminate powder, hydrochloric acid, sulfuric acid, oxidizing agent and water, although it has a good water treatment effect, it still has the disadvantages of large amount of flocculant added and high cost of water treatment

Method used

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Effect test

Embodiment 1

[0024] Raw materials: black wattle polyphenol, tertiary amine salt, magnesium silicate, trimethylglycidyl ammonium chloride, ethylenediaminetetraacetic acid. Prepare the present invention as follows:

[0025] 1. Extract plant polyphenols from plants, and prepare cationic plant polyphenols through Mannich reaction;

[0026] 2. Use cationic surfactant tertiary amine salt, inorganic flocculant and complexing agent for complexation reaction to prepare tertiary amine

[0027] Salt · Inorganic salt polymer;

[0028] 3. The cationized plant polyphenols and tertiary amine salt inorganic salt polymers obtained in the above two steps of 1 and 2 are placed in the

[0029] In the presence of a complexing agent, a complex reaction is carried out to prepare a dual-machine flocculant. The specific instructions are as follows:

[0030] 1. Modification of plant polyphenols (Mannich reaction):

[0031] Black wattle polyphenols are used as raw materials for extraction, and the obtaine...

Embodiment 2

[0034] In this step reaction, GTAC reagent (trimethylglycidyl ammonium chloride) introduces N in the plant polyphenol R-OH should be greater than 2%, and the positive charge density after the reaction is between 2meq / g~3.2meq / g, The conversion rate of GTAC is over 96%, and the amounts of R-OH and GTAC reagent added are respectively: 81:19. 2. Polymerization of inorganic salts: Polymerize tertiary amine salts and magnesium silicate according to the following reaction formula: In the formula, R 1 R 2 R 3 N HCl is C 12 h 8 C 14 h 9 C 16 h 12 N HCl, A is magnesium silicate, the complexing agent is ethylenediaminetetraacetic acid, the amount added is 0.03% of the total amount, the catalyst is amino catalytic enzyme, the amount added is 0.07% of the total amount, R 1 R 2 R 3 The amounts of N·HCl and A added were: 12:88. 3. Synthesis of dual-machine flocculants: the above-mentioned modified plant polyphenols and R 1 R 2 R 3 N·A is added to the container according ...

Embodiment 3

[0037] Larix polyphenol representative structure In this step reaction, GTAC reagent (trimethylglycidyl ammonium chloride) introduces N into plant polyphenol R-OH should be greater than 2%, and the positive charge density after the reaction is between 2meq / g and 3.2 Between meq / g, the conversion rate of GTAC is over 96%, and the amounts of R-OH and GTAC reagent added are respectively: 68:32. 2. Polymerization of inorganic salts: Polymerize tertiary amine salts and aluminum sulfate according to the following reaction formula: In the formula, R 1 R 2 R 3 N HCl is C 12 h 8 C 13 h 9 C 16 h 12 N HCl, A is aluminum sulfate, the complexing agent is nitrilotriacetic acid, the amount added is 0.19% of the total amount, the catalyst is aminomethyl catalytic enzyme, the amount added is 0.08% of the total amount, R 1 R 2 R 3 The amounts of N·HCl and A added were: 13:87. 3. Synthesis of dual-machine flocculants: the above-mentioned modified plant polyphenols ...

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Abstract

The present invention relates to a water treatment agent, and is a network polymer which is formed from structure unit formed from plant polyphenol modified by Mannich reaction and structure unit formed by polymerization of tertiary ammonium salt and inorganic flocculant or structure unit formed by polymerization of quaternary ammonium salt and inorganic flocculant and whose molecular weight is 700000-25000000, in which the plant polyphenal is condensate polyphenol and complex polyhenol, the inorganic flocculant is any one of magnesium silicate, ferrous sulfate, aluminium sulfate, iron trichloride, polyiron and aluminium-containing iron sulfate.

Description

technical field [0001] The invention relates to a water treatment agent, in particular to a water treatment agent formed by condensation of organic matter and inorganic matter, which is mainly used for the purification treatment of domestic water, industrial water and waste water, as well as the treatment of protein, starch and precious metals. Collection, separation and purification, mineral flotation separation. Background technique [0002] Flocculants have a history of hundreds of years. The first generation is natural inorganic flocculants such as alum; the second generation is inorganic salt flocculants such as aluminum sulfate; the third generation is inorganic polymer flocculants (such as polyaluminum chloride, polyiron) and organic polymer flocculants ( Such as polyacrylamide, sodium polyacrylate, etc.). In the chemical industry, light industry, metallurgy and mining industries, water needs to be purified. The traditional flocculants include...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56
Inventor 彭毅
Owner ZIGONG QIANYE ENVIRONMENTAL PROTECTION IND
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