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Rare earth cationic-compound aluminium organic heteropolymeric flocculant

A cationic, composite aluminum technology, which is applied in the direction of flocculation/sedimentation water/sewage treatment, mining wastewater treatment, etc., can solve the problem of the amount of floating flocculant, etc., and achieve the effect of improving the flocculation effect

Inactive Publication Date: 2020-02-07
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a rare earth cationic-composite aluminum organic heteropolymer flocculant, which solves the problems of floating flocs and large amount of flocculants in existing flocculants

Method used

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  • Rare earth cationic-compound aluminium organic heteropolymeric flocculant
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  • Rare earth cationic-compound aluminium organic heteropolymeric flocculant

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Experimental program
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Effect test

Embodiment 1

[0032] 1. Raw material composition

[0033] In terms of mass components, 54.3 parts of aluminum chloride hexahydrate, 5.5 parts of rare earth chloride, 2.5 parts of sodium hydroxide, 8 parts of acrylamide, 4.8 parts of dimethyl diallyl ammonium chloride, 0.02 parts of ammonium persulfate, 0.012 parts of sodium bisulfite, 76 parts of water.

[0034] 2. Preparation steps

[0035] (1) Using a beaker, add 54.3 parts of aluminum chloride hexahydrate to 76 parts of water, and use a magnetic stirring paddle to stir for 10 minutes. After the aluminum chloride hexahydrate is completely hydrolyzed, the mark of dissolution is transparent and clear;

[0036] (2) After the dissolution of aluminum chloride hexahydrate is completed, 5.5 parts of rare earth chlorides are added to the above solution, and the hydrolysis of the rare earth chlorides is completed after continuing to stir for 10 minutes. The mark of the completion of the dissolution is that there is no solid in the solution;

[0...

Embodiment 2

[0045] 1. Raw material composition

[0046] In terms of mass components, 45.25 parts of aluminum chloride hexahydrate, 4.58 parts of rare earth chloride, 2.25 parts of sodium hydroxide, 8 parts of acrylamide, 3.2 parts of dimethyl diallyl ammonium chloride, 0.02 parts of ammonium persulfate, 0.012 parts of sodium bisulfite, 76 parts of water.

[0047] 2. Preparation steps

[0048](1) Using a beaker, add 45.25 parts of aluminum chloride hexahydrate to 76 parts of water, use a magnetic stirring paddle to stir for 10 minutes, and then completely hydrolyze the aluminum chloride hexahydrate;

[0049] (2) After the dissolution of aluminum chloride hexahydrate is completed, 4.58 parts of rare earth chlorides are added to the above solution, and the hydrolysis of rare earth chlorides is completed after continuing to stir for 10 minutes;

[0050] (3) Slowly add 2.25 parts of sodium hydroxide to the solution in step (2), while stirring, the addition time is 25 minutes, after the addit...

Embodiment 3

[0055] 1. Raw material composition

[0056] In terms of mass components, 36.2 parts of aluminum chloride hexahydrate, 3.7 parts of rare earth chloride, 2 parts of sodium hydroxide, 8 parts of acrylamide, 1.6 parts of dimethyl diallyl ammonium chloride, 0.02 parts of ammonium persulfate, 0.012 parts of sodium bisulfite, 76 parts of water.

[0057] 2. Preparation steps

[0058] (1) Using a beaker, add 36.2 parts of aluminum chloride hexahydrate to 76 parts of water, use a magnetic stirring paddle to stir for 10 minutes, and then completely hydrolyze the aluminum chloride hexahydrate;

[0059] (2) After the dissolution of aluminum chloride hexahydrate is completed, 3.7 parts of rare earth chlorides are added to the above solution, and the hydrolysis of the rare earth chlorides is completed after continuing to stir for 10 minutes;

[0060] (3) Slowly add 2 parts of sodium hydroxide to the solution in step (2), while stirring, the addition time is 20 minutes, after the addition i...

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Abstract

The invention discloses a rare earth cationic-compound aluminium organic heteropolymeric flocculant. The rare earth cationic-compound aluminium organic heteropolymeric flocculant is obtained by grafting a polymerization product of aluminium chloride and a rare earth chloride with acrylamide and diallyldimethylammonium chloride. The problems that according to existing flocculants, floc floats upwards, and the dosages of the flocculants are large are solved.

Description

technical field [0001] The invention relates to the field of petrochemical industry, and relates to a flocculant used for flocculation treatment of oil, suspended solids, heavy metal ions and other substances harmful to the environment in the oil field sewage treatment process and a preparation method thereof. Background technique [0002] Oilfield sewage generally contains a variety of substances that are harmful to the environment. If it is discharged into the surrounding environment without treatment or improper treatment, it will inevitably cause serious damage to the surrounding environment. In many oil fields, due to the complex composition of sewage, traditional sewage treatment agents can no longer meet the national environmental protection requirements. At this time, an efficient and environmentally friendly flocculant is needed to solve the complex sewage and make it meet the discharge or reinjection standards. . [0003] Polyaluminum chloride flocculant, which is...

Claims

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Application Information

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IPC IPC(8): C02F1/56C02F103/10
CPCC02F1/56C02F2103/10
Inventor 刘庆旺王岳能范振忠乔三原梁婷孙傲
Owner NORTHEAST GASOLINEEUM UNIV
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