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Method for preparing chloride ion treating medicament

A chlorine ion and medicament technology, which is applied in the preparation field of chlorine ion medicament, can solve the problem of high chlorine ion treatment cost, and achieve the effect of high chlorine removal efficiency, low price, and no environmental pollution

Inactive Publication Date: 2012-02-15
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing hydrotalcite capable of adsorbing chloride ions in order to solve the problem of high chlorine ion treatment cost

Method used

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  • Method for preparing chloride ion treating medicament
  • Method for preparing chloride ion treating medicament
  • Method for preparing chloride ion treating medicament

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Dissolve 38.462g solid magnesium nitrate hexahydrate and 28.135g solid aluminum nitrate nonahydrate (Mg / Al=2:1) ​​in 500ml water to configure a mixed salt solution; dissolve 30.5g sodium hydroxide and 3.975g sodium bicarbonate in 500ml Make a precipitant in water; put 1000ml of deionized water in the container, heat it to 70°C, and drop the two solutions into this container at a rate of 1 drop / s through a metering pump, and control the relative drop rate to Adjust the pH value above 13 and stir vigorously. Continue to stir for 1.5h after the titration is completed; put the mixed solution at 60°C for crystallization for 15 hours, wait for the mixed solution to precipitate and cool, and after suction filtration, wash the filter cake until neutral; put the filter cake at a temperature of 70°C After drying for 15 hours, it was ground into powder; the powder was fired in a muffle furnace at 200°C, 300°C, 400°C, 500°C, and 600°C for 200 minutes respectively to obtain a produc...

Embodiment 2

[0024] Dissolve 38.462g solid magnesium nitrate hexahydrate and 18.756g solid aluminum nitrate nonahydrate (Mg / Al=3:1) in 500ml water to configure a mixed salt solution; dissolve 28.5g sodium hydroxide and 2.651g sodium bicarbonate in 500ml Make a precipitant in water; put 1000ml of deionized water in the container, heat it to 70°C, and drop the two solutions into this container at a rate of 1 drop / s through a metering pump, and control the relative drop rate to Adjust the pH value above 13 and stir vigorously. Continue to stir for 1.5h after the titration is completed; put the mixed solution at 60°C for crystallization for 15 hours, wait for the mixed solution to precipitate and cool, and after suction filtration, wash the filter cake until neutral; put the filter cake at a temperature of 70°C After drying for 15 hours, it was ground into powder; the powder was fired in a muffle furnace at 200°C, 300°C, 400°C, 500°C, and 600°C for 200 minutes respectively to obtain a product ...

Embodiment 3

[0026] Dissolve 38.462g solid magnesium nitrate hexahydrate and 14.070g solid aluminum nitrate nonahydrate (Mg / Al=4:1) in 500ml water to configure a mixed salt solution; dissolve 27.5g sodium hydroxide and 1.990g sodium bicarbonate in 500ml Make a precipitant in water; put 1000ml of deionized water in the container, heat it to 70°C, and drop the two solutions into this container at a rate of 1 drop / s through a metering pump, and control the relative drop rate to Adjust the pH value above 13 and stir vigorously. Continue to stir for 1.5h after the titration is completed; put the mixed solution at 60°C for crystallization for 15 hours, wait for the mixed solution to precipitate and cool, and after suction filtration, wash the filter cake until neutral; put the filter cake at a temperature of 70°C After drying for 15 hours, it was ground into powder; the powder was fired in a muffle furnace at 200°C, 300°C, 400°C, 500°C, and 600°C for 200 minutes respectively to obtain a product ...

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Abstract

The invention relates to a method for preparing chloride ion treating medicament, which belongs to the technical field of materials and environment. In the method, solid magnesium salt raw materials and aluminum salt are prepared into metal salt solution, the metal salt solution is prepared into mixed solution with strong base, filter cake is obtained through suction filtering and washing after hydrothermal crystallization precipitation and cooling, a laminated structure is prepared through grinding and roasting, interlaminar ions have the exchangeability, the material loses interlaminar water and anions after being roasted, and roasting products with higher specific surface area can be obtained. In water environment, the roasting products can be recovered and rebuilt into the original laminated structure through absorbing the anions again. The medicament is prepared by soluble magnesium salt, aluminum salt and inorganic sodium salt. High-concentration chloride ions in waste water can be effectively removed, and in addition, the medicament can be repeatedly used after regeneration. The method has the advantages that the medicament preparation method is simple, the raw material source is wide, the price is low, the process flow is simple, the equipment investment is little, no environment pollution is caused, and the chlorine removal efficiency is high.

Description

technical field [0001] The invention relates to a preparation method of a medicament for treating chloride ions, and belongs to the technical field of materials and environment. Background technique [0002] High-concentration chloride ions are very corrosive to equipment. When the chloride ion content reaches 2%, most stainless steel can no longer be used. Chlorobutyl rubber, glass flake lining or other corrosion-resistant materials should be used. Chloride ions are also the main cause of metal pitting corrosion, crevice corrosion, stress corrosion and selective corrosion. [0003] Chloride ions are difficult to deal with, and the currently commonly used methods such as reverse osmosis and electrodialysis are costly to deal with, and the reprocessing of the treated dope is a bigger problem. This patent uses self-made hydrotalcite to treat chlorine-containing wastewater, and the effect is remarkable. [0004] Hydrotalcite is an artificially synthesized layered material tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/02C02F1/58C02F101/12
Inventor 宋存义常冠钦韩佳艺邢奕汪莉钱大益梁宝瑞赵荣志金科学张志鸿
Owner UNIV OF SCI & TECH BEIJING
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