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Sewage purifier preparation method and purifier thereby

A water purifying agent and sewage technology, applied in separation methods, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of general treatment effect, etc., and achieve the effect of obvious water purification effect.

Inactive Publication Date: 2015-02-04
SHAANXI HUALU CHEM ENVIRONMENTAL PROTECTION
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Problems solved by technology

Oilfield sewage can be treated in many ways depending on factors such as oilfield production and environment. When the oilfield needs water injection, the oilfield sewage is treated and then reinjected into the formation. At this time, multiple indicators such as suspended solids and oil in the water must be strictly controlled. To prevent it from causing damage to the stratum, the existing treatment agents only have a better effect on a certain item, and the treatment effect on other substances in the water is general

Method used

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  • Sewage purifier preparation method and purifier thereby

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specific Embodiment

[0011] Specific embodiment: the preparation method flow process of sewage purifying agent of the present invention is as follows;

[0012] Under the action of the catalyst, with polyhydric fatty alcohol as the initiator, epichlorohydrin is added dropwise into the polyhydric fatty alcohol and catalyst mixture, the temperature is 40-60°C during the addition, and the temperature is raised to 80-90°C after adding, and stirred until The material is uniform and transparent to obtain chlorinated polyether; chlorinated polyether chlorinated polyether and dimethylamine undergo quaternization reaction, chlorinated polyether and dimethylamine aqueous solution are mixed, and stirred under the protection of nitrogen atmosphere, the temperature is 60-80°C, pressure 0.4MPa, stir for 5 hours, then gradually raise the temperature to 100-120°C, continue to stir for 4 hours, stop the reaction, cool down to 40°C to form a quaternary ammonium salt polymer, and obtain a sewage water purifier.

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Abstract

The invention relates to a sewage purifier preparation method and a purifier thereof and belongs to the field of oily sewage treatment of the petrochemical industry. Aiming at the problem that the existing treatment agent has few treatment effects, the invention provides the sewage purifier preparation method which has a relatively high treatment effect on oils and suspended matters and the purifier thereby. The method comprises the following step: obtaining a quaternary ammonium salt polymer (namely the sewage purifier) by ring opening polymerization of epoxy chloropropane and quaternization of chlorinated polyether. The purifier prepared by the method can be used for effectively removing sump oil and suspended matters out of sewage. The oil removal rate is over 90%, the suspended matter removal rate is over 80%, and the water purification effect is very remarkable.

Description

technical field [0001] The invention belongs to the field of oily sewage treatment in the petrochemical industry. Background technique [0002] Oilfield sewage mainly includes crude oil produced water (also known as oilfield produced water), drilling sewage and other types of oily sewage in stations. Oilfield sewage can be treated in many ways depending on factors such as oilfield production and environment. When the oilfield needs water injection, the oilfield sewage is treated and then reinjected into the formation. At this time, multiple indicators such as suspended solids and oil in the water must be strictly controlled. To prevent it from causing damage to the stratum, the existing treatment agents only have a better effect on a certain item, and the treatment effect on other substances in the water is general. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing sewage water purifying agent which has better tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/40
CPCC02F1/56C02F1/40C02F2103/365
Inventor 陆强
Owner SHAANXI HUALU CHEM ENVIRONMENTAL PROTECTION
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