An organic concrete and its preparation method

A technology of organic coagulation and organic amine, which is applied in the field of organic coagulant and its preparation, can solve the problems of large amount of sludge, unfavorable treatment, large processing load, etc., achieve sufficient polymerization reaction, good coagulation effect, and preparation method simple effect

Active Publication Date: 2021-01-26
广州安达净水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The existing coagulants have some disadvantages: 1) After the wastewater is treated with inorganic salts, a large amount of mud is produced, which is not conducive to the subsequent treatment; 2) The wastewater after the coagulant treatment has secondary heavy metal pollution, and the subsequent treatment load is large

Method used

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  • An organic concrete and its preparation method
  • An organic concrete and its preparation method

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Effect test

Embodiment 1

[0028] The present embodiment provides a kind of preparation method of organic coagulant, it comprises the following steps:

[0029] S1) Add organic amine, absolute ethanol and water into the reaction kettle, stir and mix to obtain mixture I;

[0030] S2) When the temperature in the reactor is raised to 40°C, add epichlorohydrin dropwise into the reaction, and react for 20 minutes;

[0031] S3) The temperature in the reactor is raised to 60° C., and after 10 hours, the modifier is added dropwise to the reactor, and the reaction is continued for 4 hours;

[0032] S4) Add quaternary ammonium salt monomer into the reactor, stir for 15min; then add initiator dropwise into the reactor, and react for 4h to obtain the organic coagulant;

[0033] The mass concentration of organic amine in the mixture I is 10%, the mass concentration of absolute ethanol in the mixture I is 60%, the mass ratio of the organic amine to propylene oxide is 1, and the quaternary ammonium salt The mass rati...

Embodiment 2

[0037] The present embodiment provides a kind of preparation method of organic coagulant, it comprises the following steps:

[0038] S1) Add organic amine, absolute ethanol and water into the reaction kettle, stir and mix to obtain mixture I;

[0039] S2) When the temperature in the reactor is raised to 40°C, add epichlorohydrin dropwise into the reaction, and react for 35 minutes;

[0040] S3) The temperature in the reactor is raised to 80° C., and after 7 hours, the modifier is added dropwise to the reactor, and the reaction is continued for 3 hours;

[0041] S4) Add quaternary ammonium salt monomer into the reactor, stir for 30min; then add initiator dropwise into the reactor, and react for 2.5h to obtain the organic coagulant;

[0042] The mass concentration of organic amine in the mixture I is 20%, the mass concentration of dehydrated alcohol in the mixture I is 65%, the mass ratio of the organic amine to propylene oxide is 1.3, and the quaternary ammonium salt The mass...

Embodiment 3

[0046] The present embodiment provides a kind of preparation method of organic coagulant, it comprises the following steps:

[0047] S1) Add organic amine, absolute ethanol and water into the reaction kettle, stir and mix to obtain mixture I;

[0048] S2) When the temperature in the reactor is raised to 40°C, add epichlorohydrin dropwise into the reaction, and react for 40 minutes;

[0049] S3) The temperature in the reactor is raised to 90° C., and after 5 hours, the modifier is added dropwise to the reactor, and the reaction is continued for 2 hours;

[0050] S4) Add quaternary ammonium salt monomer into the reactor, stir for 35min; then add initiator dropwise into the reactor, and react for 2h to obtain the organic coagulant;

[0051] The mass concentration of organic amine in the mixture I is 25%, the mass concentration of dehydrated alcohol in the mixture I is 80%, the mass ratio of the organic amine to propylene oxide is 1.5, and the quaternary ammonium salt The mass r...

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Abstract

The invention discloses an organic coagulant and a preparation method thereof, and belongs to the technical field of wastewater treatment. The preparation method comprises the following steps: takingorganic amine and epoxy chloropropane as the primary raw materials to synthesize an intermediate namely epoxy chloropropane-organic amine; and then modifying the intermediate by a modifier to promotethe intermediate to carry out copolymerization reactions with quaternary ammonium salt monomers under the action of an initiator to obtain the organic coagulant. The prepared organic coagulant has a good coagulating effect, and the secondary pollution and post treatment load are both reduced.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an organic coagulant and a preparation method thereof. Background technique [0002] At present, treatment cost and degradation efficiency are the core issues of water treatment control research at home and abroad, while economical, simple, effective and non-secondary pollution treatment methods are the urgent needs of conventional sewage treatment plants. In water treatment methods, coagulation is one of the core parts of water treatment process, and the core technology of coagulation process is the development of coagulant. The National Water Pollution Control and Treatment Science and Technology Major Project "Water Pollution Control and Treatment Implementation Plan" pointed out that the development of new coagulants is one of the hot technologies for water pollution load reduction. The development of new high-efficiency, low-consumption, safe and ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/14C08G59/10C02F1/56
CPCC02F1/56C08G59/10C08G59/14
Inventor 石宗武吴春丽
Owner 广州安达净水材料有限公司
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