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Water purifier and preparation method thereof

A technology of water purifying agent and ammonium aluminum sulfate, which is applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., to achieve the effect of avoiding pollution and solving solid waste treatment problems

Inactive Publication Date: 2016-11-23
QINGDAO HUICHENG PETROCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Although there are many reports on the method of recovering aluminum from waste to prepare water purifiers, there is no report on the preparation of synthetic water purifiers using microspherical catalytic cracking waste catalysts with a particle size of <200 μm as the main components of aluminum oxide and silicon oxide. method

Method used

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  • Water purifier and preparation method thereof

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Effect test

Embodiment 1

[0020] The preparation process of water purifying agent is as follows:

[0021] (1) Weighing 100g of microspherical catalytic cracking waste catalyst with a particle size<200 μm, beating it with water, and stirring for 30 minutes;

[0022] (2) According to the acid concentration in the reaction process, it is 20%, and the ratio of solid to liquid is 1:6 to add sulfuric acid, and the acid addition speed can be controlled for safety reasons;

[0023] (3) After adding acid, adjust the reaction temperature to be 140° C., and react at this temperature for 4 hours;

[0024] (4) Add water to dilute to 2 times of the original volume after the reaction is finished, and centrifuge while hot to obtain the filtrate;

[0025] (5) Pass ammonia water into the filtrate, cool to 10°C, filter, wash, and dry to obtain the crude product of granular water purifying agent aluminum ammonium sulfate;

[0026] (6) The aluminum ammonium sulfate crude product is recrystallized to obtain the industrial...

Embodiment 2

[0029] The preparation process of water purifying agent is as follows:

[0030] (1) Weighing 100g of microspherical catalytic cracking waste catalyst with a particle size<40 μm, beating it with water, and stirring for 30 minutes;

[0031] (2) According to the acid concentration in the reaction process, the acid concentration is 30%, and the solid-liquid ratio is 1:5 to add sulfuric acid, and the acid addition speed can be controlled for the sake of safety;

[0032] (3) After adding acid, adjust the reaction temperature to be 130° C., and react at this temperature for 4 hours;

[0033] (4) Add water to dilute to 2 times of the original volume after the reaction is finished, and centrifuge while hot to obtain the filtrate;

[0034] (5) Pass through ammoniacal liquor in filtrate, cool down to 50 ℃, filter, wash, dry to obtain granular water purifying agent aluminum ammonium sulfate crude product;

[0035] (6) The aluminum ammonium sulfate crude product is recrystallized to obta...

Embodiment 3

[0038] The preparation process of water purifying agent is as follows:

[0039] (1) Weighing 100g of microspherical catalytic cracking waste catalyst with a particle size<20 μm, beating it with water, and stirring for 30 minutes;

[0040] (2) According to the acid concentration in the reaction process, the acid concentration is 40%, and the solid-liquid ratio is 1:4 to add sulfuric acid, and the acid addition speed can be controlled for the sake of safety;

[0041] (3) After adding acid, adjust the reaction temperature to be 140° C., and react at this temperature for 4 hours;

[0042] (4) Add water to dilute to 2 times of the original volume after the reaction is finished, and centrifuge while hot to obtain the filtrate;

[0043] (5) Ammonia water is passed into the filtrate, cooled to 20°C, filtered, washed, and dried to obtain the crude product of granular water purifying agent aluminum ammonium sulfate;

[0044] (6) The aluminum ammonium sulfate crude product is recrystal...

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Abstract

The invention discloses a water purifier and a preparation method thereof, belongs to the technical field of water purifier preparation, and also belongs to the field of solid waste treatment and use. The water purifier is prepared from a raw material, namely, a micro-spherical catalytic cracking waste catalyst of which the particle size is less than 200 microns; the waste catalyst mainly comprises silicon oxide and aluminum oxide. The preparation method specifically comprises the following steps: (1) pulping the micro-spherical catalytic cracking waste catalyst of which the particle size is less than 200 microns with water, and stirring; (2) adding sulfuric acid according to the acid concentration of 20-65% in the reaction process and a solid-to-liquid ratio of 1:(2-6); (3) adjusting the reaction temperature to 90-150 DEG C after adding the acid, and performing reaction for 1-6 hours at the temperature; (4) after completing the reaction, adding water to dilute till the volume is 2-3 times of the original volume, and performing centrifugal filtration at the temperature not lower than 90 DEG C, so as to obtain filtrate; (5) introducing ammonia water or ammonium sulfate into the filtrate, reducing the temperature to 0-60 DEG C, and performing filtering, washing and drying to obtain a granular water purifier ammonium aluminum sulfatehydrate crude product; (6) obtaining industrial ammonium aluminum sulfatehydrate after recrystallization. The micro-spherical catalytic cracking waste catalyst generated in smelting plants is adopted as the raw material to produce the water purifier, a novel product can be developed, and furthermore the solid waste treatment difficulty is solved, so that the water purifier is both economic and environment-friendly.

Description

technical field [0001] The invention relates to a water purifier and a preparation method thereof, which belongs to the technical field of water purifiers and also belongs to the field of solid waste treatment and utilization. Background technique [0002] Water purifier is a chemical that can be put into water to react with other impurities in water. Because of its wide variety, the preparation methods are also very different. [0003] In recent years, with the increase of industrial waste, many researchers use aluminum-containing industrial waste to prepare various aluminum-related products, many of which are related to water purifiers. [0004] Chinese patent CN104803438A discloses a method of using fly ash to prepare a water purifier. The water purifier obtained by the method can effectively absorb, flocculate, precipitate and separate harmful substances in polluted water to achieve water purification effect. [0005] Chinese patent CN102887578A discloses a method for p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/76C02F1/52
CPCC01F7/765C02F1/5245
Inventor 祝汉国仉杰梁昌峰张新功
Owner QINGDAO HUICHENG PETROCHEM TECH
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