Efficient humic acid fluorion adsorbent

A technology of humic acid and fluoride ions, applied in the fields of adsorption water/sewage treatment, alkali metal oxide/hydroxide, inorganic chemistry, etc., can solve the problem of low adsorption capacity, and achieve high adsorption capacity, cost reduction, mechanical strength Enhanced effect

Active Publication Date: 2014-10-15
ANHUI JINYANG FLUORINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional adsorbents such as activated alumina have problems such as low adsorption capacity, which affects practical applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of efficient humic acid fluoride ion adsorbent proposed by the present invention, its raw material comprises by weight: 35 parts of humic acid, 5 parts of ferric chloride, 28 parts of aluminum chloride, 5 parts of manganese chloride, 68 parts of zirconium chloride, 10 parts of calcium chloride, 49 parts of 900 mesh mixed pulverized coal, 55 parts of 1.5mol / L sodium hydroxide solution; wherein the preparation method of 900 mesh mixed pulverized coal is as follows: add 15 parts of pulverized coal to 42 parts of hydrochloric acid of 8.8mol / L In the solution, raise the temperature to 83°C and stir at a stirring speed of 150rpm for 1.5h, then lower the temperature to room temperature and let it stand for 10h before filtering, then heat and pressurize the filtered solid for 20min to obtain dry solid coal powder, heat and add The temperature of pressure drying is 50°C, and the pressure of heating and pressure drying is 10Pa; 40 parts of dry solid coal powder, 24 parts of...

Embodiment 2

[0018] A kind of high-efficiency humic acid fluoride ion adsorbent proposed by the present invention, its raw material comprises by weight: 37 parts of humic acid, 4.2 parts of ferric chloride, 31 parts of aluminum chloride, 4.6 parts of manganese chloride, 70 parts of zirconium chloride, 8 parts of calcium chloride, 51 parts of 800 mesh mixed pulverized coal, 59 parts of 1.3mol / L sodium hydroxide solution; wherein the preparation method of 800 mesh mixed pulverized coal is as follows: add 12 parts of pulverized coal to 48 parts of hydrochloric acid of 8.5mol / L In the solution, the temperature was raised to 86°C and stirred at a stirring speed of 130rpm for 1.8h, then the temperature was lowered to room temperature and allowed to stand for 8h, and then filtered, and then the filtered solid was dried under heat and pressure for 23min to obtain dry solid coal powder, which was heated and added The temperature of pressure drying is 55°C, and the pressure of heating and pressure dr...

Embodiment 3

[0021]A kind of efficient humic acid fluoride ion adsorbent proposed by the present invention, its raw material comprises by weight: 38 parts of humic acid, 4 parts of ferric chloride, 32 parts of aluminum chloride, 4 parts of manganese chloride, 72 parts of zirconium chloride, 7 parts of calcium chloride, 52 parts of 850 mesh mixed coal powder, 60 parts of 1.2mol / L sodium hydroxide solution; wherein the preparation method of 850 mesh mixed coal powder is as follows: add 13 parts of coal powder to 46 parts of 8.6mol / L hydrochloric acid In the solution, raise the temperature to 85°C and stir at a stirring speed of 135rpm for 1.7h, then lower the temperature to room temperature and let it stand for 8.3h before filtering, then heat and pressurize the filtered solid for 22min to obtain dry solid coal powder, heat The temperature of pressurized drying is 52°C, and the pressure of heating and pressurized drying is 9.5Pa; 42 parts of dry solid coal powder, 23 parts of activated carbon...

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PUM

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Abstract

The invention discloses efficient humic acid fluorion adsorbent. The efficient humic acid fluorion adsorbent comprises, by weight part, 35 to 38 parts of humic acid, 4 to 5 parts of ferric chloride, 28 to 32 parts of aluminum chloride, 4 to 5 parts of manganese chloride, 68 to 72 parts of zirconium chloride, 7 to 10 parts of calcium chloride, 49 to 52 parts of mixed pulverized coal and 55 to 60 parts of sodium hydroxide solutions. The zirconium chloride, the ferric chloride, the aluminum chloride, the manganese chloride and the calcium chloride are sequentially dissolved in water to obtain an iron, aluminum, manganese, zirconium and calcium mixed solution; the humic acid is added to the sodium hydroxide solutions to obtain an alkaline sodium humate solution, the alkaline sodium humate solution is stirred and added to the iron, aluminum, manganese, zirconium and calcium mixed solution, and a PH (Potential Of Hydrogen) value is adjusted to filter to obtain solid mixture; the solid mixture is heated, pressed and dried after being washed to obtain humic acid metal complex; the mixed pulverized coal and the humic acid metal complex are stirred to obtain the efficient humic acid fluorion adsorbent. The efficient humic acid fluorion adsorbent has the advantages of being wide in raw material source, simple in preparation technology, high in adsorption capacity and high in defluorination efficiency and accordingly greatly reducing costs.

Description

technical field [0001] The invention relates to the technical field of fluoride ion adsorption, in particular to an efficient humic acid fluoride ion adsorbent. Background technique [0002] Fluorine is an essential trace element for the human body. An appropriate amount of fluorine can not only protect teeth, but also play an important role in the formation and metabolism of bones, reduce the incidence of dental caries, and also affect the excitatory conduction of the nervous system, calcium and phosphorus metabolism, and thyroid glands. Functional, cellular enzyme systems, and reproductive processes are all beneficial. However, long-term intake of excessive fluoride will produce various symptoms of fluorosis, which may lead to dental fluorosis, skeletal fluorosis, muscle fiber degeneration, and even bone cancer. Therefore, strictly controlling the intake of fluorine is of great significance to human health. [0003] At present, the purification methods of high-fluorine w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F1/58
Inventor 陈喜
Owner ANHUI JINYANG FLUORINE CHEM
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