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Novel zirconium-loading chemical protective material and preparation method thereof

A new type of chemical protection technology, applied in the field of preparation of new zirconium-loaded chemical protection materials, to achieve the effect of good physical adsorption capacity and improved specific surface area

Inactive Publication Date: 2015-03-18
NO 63971 TROOPS PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The protective materials currently used in my country are mainly activated carbon as the matrix material, and the chromium-free impregnated activated carbon material loaded with copper, zinc, molybdenum, silver and triethylenediamine belongs to the same generation of materials as the ASZM-TEDA material in the United States, but according to According to the evaluation standard of the National Institute of Occupational Safety and Health (NIOSH), the protection time of the filter filled with ASZM-TEDA for most of the target toxic industrial chemicals is lower than the minimum protection level stipulated by NISOH for 15 minutes (see Table 1)

Method used

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  • Novel zirconium-loading chemical protective material and preparation method thereof

Examples

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Effect test

example 1

[0020] Weigh 380.15 grams of coal-based carbon; weigh 147.03 grams of zirconium sulfate ZrSO 4 2H 2 O (12wt% Zr), dissolved in deionized water, fixed to 400 ml, mixed with activated carbon, stirred evenly and sealed for more than 4 hours; dried in an oven at 120 ° C; measured 570 ml of 25% ammonia water, added 48.25 gram of ammonium chloride to prepare a buffer solution, mixed with the dried sample, stirred evenly and sealed for more than 4 hours; rinsed with deionized water until neutral, and removed SO -2 So far (titration with barium chloride solution, no precipitation); dry in an oven at 120°C.

example 2

[0022] Weigh 432.60 grams of coconut shell charcoal; weigh 73.50 grams of zirconium sulfate ZrSO 4 2H 2 O (8wt% Zr), dissolved in deionized water, fixed to 454 ml, mixed with activated carbon, stirred evenly and sealed for more than 4 hours; baked in an oven at 120 ° C for 4 hours; measure 350 ml of 25% ammonia water, add Dissolve 35.75 grams of ammonium chloride, dilute to 390 ml to prepare a buffer solution, mix with the dried sample, stir evenly, and seal it for more than 4 hours; rinse with deionized water until neutral, and remove SO 4 -2 So far (titration with barium chloride solution, no precipitation); dry in an oven at 120°C.

example 3

[0024] Weigh 380.15 grams of MCM41 molecular sieve; weigh 147.03 grams of zirconium sulfate ZrSO 4 2H 2 O (12wt% Zr), dissolved in deionized water, fixed to 190 milliliters, mixed with molecular sieves, stirred evenly and sealed for more than 4 hours; dried in an oven at 120 ° C; measured 152.06 milliliters of 25% ammonia water, and dried Mix the molecular sieve after drying the sample, stir evenly and seal it for more than 4 hours; rinse with deionized water until neutral, and remove SO -2 So far (titration with barium chloride solution, no precipitation); dry in an oven at 120°C.

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Abstract

The invention discloses a novel zirconium-based chemical protective material which takes activated carbon or a molecular sieve and other adsorbing materials as a carrier. The material is produced by dipping a zircon salt and then an ammonium hydroxide buffer solution in pores to carry out in situ synthesis to produce zirconium nitrate and then drying and activating in air. The material has excellent protection capacity on chemical toxic agents and acid poisonous and harmful industrial chemicals, and can be widely applied to the fields of military, air purification and room temperature catalysis.

Description

technical field [0001] The invention relates to the preparation of a novel zirconium-loaded chemical protection material. At the same time, it has the ability to adsorb and react acidic TICs, and can be widely used in the fields of air purification and room temperature catalysis. Background technique [0002] The protective materials currently used in my country are mainly activated carbon as the matrix material, and the chromium-free impregnated activated carbon material loaded with copper, zinc, molybdenum, silver and triethylenediamine belongs to the same generation of materials as the ASZM-TEDA material in the United States, but according to According to the evaluation standard of the National Institute of Occupational Safety and Health (NIOSH), the protection time of the filter filled with ASZM-TEDA for most of the target toxic industrial chemicals is lower than the minimum protection level stipulated by NISOH for 15 minutes (see Table 1). [0003] Table 1 Protection le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/18B01J29/00
Inventor 栗丽栾志强李凯马兰叶平伟吴琼王泠沄
Owner NO 63971 TROOPS PLA
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