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Polymerized aluminium-polyepichlorohydrin amine inorganic organic composite coagulator and its preparation technology

A polyepichlorohydrin amine and composite flocculant technology, which is applied in the chemical field, can solve undiscovered problems and achieve the effects of strong adsorption and bridging ability, simple production process, and high molecular weight

Inactive Publication Date: 2006-11-29
SHANDONG UNIV
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Problems solved by technology

[0004] The novelty search result shows that in the domestic literature database, there is no preparation process for the preparation of polyaluminum-polyepichlorohydrinamine inorganic-organic composite flocculants identical to the present invention with polyaluminum chloride and polyepichlorohydrin amine. Literature report

Method used

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Embodiment

[0015] A polymeric aluminum-polyepichlorohydrin amine inorganic-organic composite flocculant, the appearance is light yellow or colorless liquid, containing Al 2 o 3 The weight percentage is 9.0%-10.6%, the weight percentage of polyepichlorohydrin amine is 10.0%, and the pH is 3.1-4.5.

[0016] The preparation process of polyaluminum-polyepichlorohydrin amine inorganic-organic composite flocculant is as follows:

[0017] (1) Take 69-71g of AlCl 3 ·6H 2 O solid in a beaker, add 58 ~ 62ml of distilled water, heat to 40 ℃ ~ 60 ℃ with an electromagnetic stirrer to make it completely dissolved, and then under the condition of stirring, use 40 ~ 60min to dissolve 18 ~ 22g of Na 2 CO 3 The powder is evenly added to the above solution to reach the predetermined degree of alkalization B = 1.4 to 1.6, and the Al in the prepared polyaluminum chloride (PAC) 2 o 3 The weight percentage is 10-11%;

[0018] (2) Take 89-91g of dimethylamine solution with a mass fraction of 33%, place i...

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Abstract

A composite flocculant for treating the printing and dyeing sewage in textile industry is prepared from AlCl3 .6H2O and polyepoxy chlorpropane amine through introducing the polyepoxy chloropropane amine to PAC solution. Its preparing process is also disclosed.

Description

(1) Technical field [0001] The invention relates to a polyaluminum-polyepichlorohydrin amine inorganic-organic composite flocculant and a preparation process thereof, belonging to the technical field of chemistry. (2) Background technology [0002] With the rapid development of my country's economy, a large amount of industrial wastewater and domestic sewage are discharged every year, of which dye wastewater and printing and dyeing wastewater occupy a considerable proportion. Printing and dyeing wastewater has the characteristics of complex composition, high concentration, deep color, etc., and contains a variety of water-soluble organic substances that are biologically toxic or carcinogenic, teratogenic, and mutagenic, and it is difficult to use conventional biological treatment methods or physical and chemical methods to treat them. Especially the remaining water-soluble dye components in the wastewater, even if the concentration is very low, will cause the light transmitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 高宝玉孙逊岳钦艳张栋华王元方王晓娜
Owner SHANDONG UNIV
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