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A method of preparing a poly-aluminum-ferric-silicate water purifier

A technology for polymerizing aluminum silicate and iron water purifier, which is applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., and can solve the problems of low cost, fast purification speed, and difficult treatment of pyrite slag. , to achieve the effect of low cost, fast water purification and good water purification effect

Inactive Publication Date: 2017-02-15
JIANGMEN JIANGHAI WEI CLEAN WATER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to make up for the deficiencies in the prior art, the present invention provides a polyaluminum iron silicate water purifier and its preparation method. The water purifier solves the problem that pyrite slag is difficult to handle, and it can effectively remove the polluting components, and the purification speed is fast and the cost is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The polymerized aluminum iron silicate water purifying agent is configured according to the following parts by weight: 50 parts of pyrite slag, 15 parts of diatomaceous earth, 50 parts of sulfuric acid, 200 parts of hydrochloric acid, 20 parts of hydrogen peroxide, and 50 parts of sodium silicate.

[0019] The preparation method of above-mentioned polyaluminum iron silicate water purifier comprises the following steps:

[0020] (1) Grinding the pyrite slag and diatomite to 200 mesh, set aside;

[0021] (2) Add hydrochloric acid with a mass fraction of 25% in a reaction kettle with a pressure of 0.5Mpa, and heat to 40°C;

[0022] (3) Add the powder obtained in step (1) into the reaction kettle, stir for 2 hours, and filter to obtain the aluminum-iron solution;

[0023] (4) Add hydrogen peroxide to the aluminum iron solution obtained in step (3), stir for 4 hours, and filter to obtain the polyaluminum iron solution;

[0024] (5) Dilute sodium silicate with water, and th...

Embodiment 2

[0027] The polymerized aluminum iron silicate water purifying agent is configured according to the following parts by weight: 80 parts of pyrite slag, 20 parts of diatomaceous earth, 70 parts of sulfuric acid, 300 parts of hydrochloric acid, 30 parts of hydrogen peroxide, and 70 parts of sodium silicate.

[0028] The preparation method of above-mentioned polyaluminum iron silicate water purifier comprises the following steps:

[0029] (1) Grinding pyrite slag and diatomite to 300 mesh, set aside;

[0030] (2) Add hydrochloric acid with a mass fraction of 30% in a reaction kettle with a pressure of 0.4Mpa, and heat to 40°C;

[0031] (3) Add the powder obtained in step (1) into the reaction kettle, stir for 2 hours, and filter to obtain the aluminum-iron solution;

[0032] (4) Add hydrogen peroxide to the aluminum iron solution obtained in step (3), stir for 5 hours, and filter to obtain the polyaluminum iron solution;

[0033] (5) Dilute sodium silicate with water, and then a...

Embodiment 3

[0036] The polymerized aluminum iron silicate water purifying agent is configured according to the following parts by weight: 100 parts of pyrite slag, 30 parts of diatomaceous earth, 90 parts of sulfuric acid, 400 parts of hydrochloric acid, 35 parts of hydrogen peroxide, and 90 parts of sodium silicate.

[0037] The preparation method of above-mentioned polyaluminum iron silicate water purifier comprises the following steps:

[0038] (1) Grinding the pyrite slag and diatomite to 400 mesh, set aside;

[0039] (2) Add hydrochloric acid with a mass fraction of 35% in a reaction kettle with a pressure of 0.5Mpa, and heat to 40°C;

[0040] (3) Add the powder obtained in step (1) into the reaction kettle, stir for 2 hours, and filter to obtain the aluminum-iron solution;

[0041] (4) Add hydrogen peroxide to the aluminum iron solution obtained in step (3), stir for 4 hours, and filter to obtain the polyaluminum iron solution;

[0042] (5) Dilute sodium silicate with water, and t...

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Abstract

A method of preparing a poly-aluminum-ferric-silicate water purifier is disclosed. Raw materials include sintered pyrite slag, diatomite, sulfuric acid, hydrochloric acid, hydrogen peroxide and sodium silicate. The method achieves effective utilization of the sintered pyrite slag, turns waste into things of value, and overcomes the problem that the sintered pyrite slag is difficult to treat. The water purifier is high in stability, wide in pH value using range, high in turbidity and humus removing rates, good in flocculation and settlement effects, and capable of effectively treating a plurality of pollutants in water and significantly reducing contents of harmful compounds such as heavy metals in water. The water purifier is prepared mainly from the sintered pyrite slag and the diatomite so that the water purifier is low in cost and free of generation of secondary pollution. The water purifier is high in adsorptive power and has characteristics of good water purification effects and a high water purification speed.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a preparation method of a polymerized aluminum iron silicate water purifier. Background technique [0002] At present, my country's industrial sulfuric acid production is mainly obtained by roasting pyrite ore into sulfur dioxide, followed by purification, catalytic oxidation, and absorption. During the roasting process, a large amount of pyrite slag is produced, the main components of which are iron oxide, aluminum oxide, silicon dioxide, calcium oxide, magnesium oxide, lead, zinc, selenium, arsenic, phosphorus, etc. , not only occupies land, pollutes the environment, but also causes groundwater pollution, which has always been one of the difficult problems for sulfuric acid enterprises. The oxides of aluminum and iron in pyrite slag are one of the raw materials for preparing polyaluminum iron silicate water purifying agent. Therefore, how to use pyrite slag to prepar...

Claims

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Application Information

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IPC IPC(8): C02F1/52
CPCC02F1/5245C02F2101/20
Inventor 杨炯辉
Owner JIANGMEN JIANGHAI WEI CLEAN WATER MATERIALS CO LTD