Rare earth polymerized silicon aluminum chloride and preparation method thereof

A technology of silicon aluminum chloride and silicon chloride, which is applied in the field of rare earth polysilicon aluminum chloride and its preparation, can solve the problems of environmental pollution, decolorization and low flocculation removal rate, and achieve the effect of high decolorization and flocculation removal rate

Inactive Publication Date: 2014-02-05
乔占印
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Paper mills are spread all over urban and rural areas. In addition, the sewage produced by power plants, coal washing plants and pharmaceutical factories pollu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] (1) Put 1.2 tons of industrial hydrochloric acid with a mass concentration of 10-30%, 50 kg of sulfuric acid with a mass concentration of 98% and 0.3 tons of aluminum hydroxide powder in the reactor, slowly heat up to 80-100°C, and react After 1 hour, cool down to 60-70°C,

[0010] (2), add 5 kg of lanthanum oxide to the reaction solution in step (1), and dropwise add 100 kg of sodium silicate solution with a mass concentration of 20-30%, heat up to 100-120°C and react for 2 hours and then drop to room temperature to prepare Lanthanum rare earth polysilicon aluminum chloride solution.

Embodiment 2

[0012] (1) Put 1.3 tons of industrial hydrochloric acid with a mass concentration of 10-30%, 80 kg of sulfuric acid with a mass concentration of 98% and 0.5 tons of aluminum hydroxide powder in the reactor, slowly heat up to 80-100°C, and react After 1 hour, cool down to 60-70°C,

[0013] (2), add 8 kilograms of lanthanum chloride to the reaction solution of step (1), and dropwise add 150 kilograms of sodium silicate solution with a mass concentration of 20-30%, heat up to 100-120 and react for 2 hours and then drop to room temperature to prepare Form lanthanum rare earth polysilicon aluminum chloride liquid.

Embodiment 3

[0015] (1) Put 1.5 tons of industrial hydrochloric acid with a mass concentration of 10-30%, 100 kg of sulfuric acid with a mass concentration of 98% and 0.6 tons of aluminum hydroxide powder in a reactor, slowly heat up to 80-100°C, and react After 1 hour, cool down to 60-70°C,

[0016] (2), 5 kg of lanthanum sulfate is added to the reaction solution in step (1), and 200 kg of sodium silicate solution with a mass concentration of 20-30% is added dropwise, the temperature is raised to 100-120 and the reaction is lowered to room temperature for 2 hours, and the prepared Lanthanum rare earth polysilicon aluminum chloride solution.

[0017] Using the lanthanum rare earth polysilicon aluminum chloride solution prepared above to treat the sewage produced by papermaking, power plants, coal washing plants and pharmaceutical factories can achieve a removal rate of 70-80% of the chroma and flocculation.

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Abstract

The invention discloses rare earth polymerized silicon aluminum chloride, wherein the rare earth in the rare earth polymerized silicon aluminum chloride refers to lanthanum rare earth. A method for preparing the rare earth polymerized silicon aluminum chloride according to claim 1 comprises the following steps: (1) putting 1.2-1.5 tons of technical hydrochloric acid with the mass concentration of 10-30%, 50-100kg of sulfuric acid with the mass concentration of 98%, and 0.3-0.6 tons of aluminum hydroxide powder into a reaction kettle, slowly raising the temperature to be 80-100 DEG C, reacting for 1 hour, and cooling down to be 60-70 DEG C; and (2) adding 5-10kg of lanthanum rare earth into the reaction liquid of the step (1), and dropping 100kg of a sodium silicate solution with the mass concentration of 20-30%, raising the temperature to be 100-120 DEG C, reacting for 2 hours and subsequently cooling down to be the room temperature so as to prepare a lanthanum rare earth polymerized silicon aluminum chloride liquid. The lanthanum rare earth is any one or a mixture of lanthanum oxide, lanthanum chloride and lanthanum sulfate. The rare earth polymerized silicon aluminum chloride has the remarkable advantages of high decoloring and flocculation removal rate.

Description

[0001] Technical field: [0002] The invention relates to an industrial sewage treatment agent and a preparation method thereof. Rare earth polysilicon aluminum chloride and a preparation method thereof. Background technique: [0003] Paper mills spread all over urban and rural areas. In addition, the sewage produced by power plants, coal washing plants and pharmaceutical factories pollutes the environment very seriously. However, the current sewage treatment agents have a low removal rate of only 50-60% for decolorization and flocculation in sewage. Invention content: [0004] The object of the present invention is to provide a rare earth polysilicoaluminum chloride with high decolorization and flocculation removal rate for sewage and a preparation method thereof. [0005] The technical solution for realizing the purpose of the present invention is the rare earth polysilicoaluminum chloride, characterized in that: the rare earth of the rare earth polysilicoaluminum chlori...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 乔占印乔宇
Owner 乔占印
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