Zirconium-loaded impregnated carbon for protecting HCN and CNCL poisons and its preparation method

A technology of impregnated carbon and poison, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. It can solve the problems of poor protection ability of small molecule poisons, poor stability of impregnated carbon, and occupancy, reaching a large market and practical application value, the effect of simple preparation process

Active Publication Date: 2018-10-23
SHANXI XINHUA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the active component chromium loaded in the ASC-T impregnated carbon is harmful to the human body, and it will cause environmental pollution during the preparation process. The U.S. Occupational Safety and Health Bureau has no longer provided gas masks filled with chromium-containing impregnated carbon since 1990. Issue the use license; ASZM-T impregnated carbon is the latest chrome-free impregnated carbon. The stability of carbon is poor, and the protection ability against low boiling point and small molecule toxic agents is poor; secondly, ASZM-T type impregnated carbon is loaded with a large proportion of metal active component Mo, although Mo plays a certain role in the purification of CNCl and HCN, However, the larger the impregnated specific gravity of macromolecule Mo will occupy a large number of pores of the carrier activated carbon, which not only affects the comprehensive protection performance of the material, but also limits the synergy between active components, and the higher price of Mo results in the cost of ASZM-T type impregnated carbon. higher

Method used

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  • Zirconium-loaded impregnated carbon for protecting HCN and CNCL poisons and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A zirconium-loaded impregnated carbon for protection against HCN and CNCl poisons, using coconut shell crushed activated carbon as the carrier skeleton material, based on the weight of activated carbon, loaded with 15% Cu, 2% Cl － , 0.5% W, 5% V, 2% Ce, 4% Zr, and the balance is activated carbon.

[0015] The preparation method is as follows:

[0016] Weigh 13g basic copper carbonate, 1.5g ammonium chloride, 0.3g ammonium metatungstate, 5.7g ammonium metavanadate, 3.2g cerium nitrate, 7.7g zirconium sulfate, gradually add 50mL ammonia water and 5mL deionized water in order In the mixed liquid, fully stir and dissolve at 60-80°C to obtain the impregnating liquid. Pour the prepared impregnating liquid into a beaker containing 50g of activated carbon and keep stirring. After the impregnation is fully complete, put the mixed material into a sealed In the bag, after standing for 4 hours, put the mixture in the hot air flow to dry and activate for 24 hours to prepare sample ...

Embodiment 2

[0018] A zirconium-loaded impregnated carbon for protection against HCN and CNCl poisons, using coconut shell crushed activated carbon as the carrier skeleton material, based on the weight of activated carbon, loaded with 18% Cu, 6% Cl － , 1% W, 4% V, 0.1% Ce, 2% Zr, and the balance is activated carbon.

[0019] The preparation method is as follows:

[0020] Weigh 15.5g basic copper carbonate, 4.5g ammonium chloride, 0.7g ammonium metatungstate, 4.5g ammonium metavanadate, 0.15g cerium nitrate, 3.8g zirconium sulfate, gradually add 50mL ammonia water and 5mL deionized water in order In the mixed solution, fully stir and dissolve at 60-80°C to obtain the impregnation solution, pour the prepared impregnation solution into a beaker containing 50g of activated carbon, and keep stirring. After the impregnation is fully complete, put the mixture into In a sealed bag, after standing for 4 hours, place the mixture in a hot air stream to dry and activate for 24 hours to prepare sample...

Embodiment 3

[0022] A zirconium-loaded impregnated carbon for protection against HCN and CNCl poisons, using coconut shell crushed activated carbon as the carrier skeleton material, based on the weight of activated carbon, loaded with 20% Cu, 1% Cl － , 5% W, 1.5% V, 1% Ce, 6% Zr, and the balance is activated carbon.

[0023] The preparation method is as follows:

[0024] Weigh 17g basic copper carbonate, 0.75g ammonium chloride, 3.3g ammonium metatungstate, 1.7g ammonium metavanadate, 0.6g cerium oxide, 11.5g zirconium sulfate, gradually add 50mL ammonia water and 5mL deionized water in order In the mixed liquid, fully stir and dissolve at 60-80°C to obtain the impregnating liquid. Pour the prepared impregnating liquid into a beaker containing 50g of activated carbon and keep stirring. After the impregnation is fully complete, put the mixed material into a sealed In the bag, after standing for 4 hours, place the mixture in the hot air flow to dry and activate for 24 hours to prepare sampl...

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PUM

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Abstract

The invention discloses zirconium-loaded impregnation carbon defending against HCN and CNCl toxic agents. With coconut shell broken active carbon as a carrier skeleton material, the zirconium-loaded impregnation carbon is loaded with the following components in percentage by weight: 15-20% of Cu, 1-6% of Cl<->, 0.1-5% of W, 0.1-5% of V, 0.1-5% of Ce, 2-8% of Zr and the balance of active carbon, wherein Cu comes from basic copper carbonate, Cl<-> comes from ammonium chloride, W comes from ammonium metatungstate, V comes from ammonium metavanadate or zinc ammonium metavanadate, Ce comes from cerium nitrate or cerium oxide, and Zr comes from zirconium sulfate or zirconium oxychloride. In the zirconium-loaded impregnation carbon, an active carbon carrier is loaded with active components such as Zr, W, V, Ce and Cu by adopting certain technical means and technology, and the prepared impregnation carbon material has a certain defending effect against the HCN and CNCl toxic agents.

Description

technical field [0001] The invention relates to a filter material for protective equipment, in particular to a zirconium-loaded impregnated carbon for protecting HCN and CNCl poisons and a preparation method thereof. Background technique [0002] Activated carbon and impregnated activated carbon are the core filter materials of protective equipment and the basis for the manufacture of protective equipment. At present, the main filling materials of protective equipment are ASC-T and ASZMT type impregnated carbon, and the main loaded active components are Cu, Mo, Zn, Ag and Cr. Although the two materials have good protective performance, they both have certain defects. For example, the active component chromium loaded in the ASC-T impregnated carbon is harmful to the human body, and it will cause environmental pollution during the preparation process. The U.S. Occupational Safety and Health Bureau has no longer provided gas masks filled with chromium-containing impregnated car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/888B01J37/02
CPCB01J23/002B01J23/888B01J37/0207B01J2523/00B01J2523/17B01J2523/48B01J2523/55B01J2523/69B01J2523/3712
Inventor 赵婷安丽花王德周金彦任齐嘉豪郭军军裴佩武越邢浩洋温宇慧周闯
Owner SHANXI XINHUA CHEM
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