Nanometer sized metal oxide particles for ambient temperature ad

Details Nanometer sized metal oxide particles for ambient temperature ad Nanometer sized metal oxide particles for ambient temperature ad

1997-08-19

1999-11-23

Straub, Gary P.

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

588205, 588218, 588221, 588224, 588236, 588242, 588246, 423210, 42324401, 4232451, A62D 300

Patent

active

059903732

ABSTRACT:
Methods for adsorbing toxic target chemical compounds such as HCN, P(O)(OCH.sub.2 CH.sub.3)(CN)(N(CH.sub.3).sub.2), ClCN, (CF.sub.3).sub.2 C.dbd.CF.sub.2, Zn(CH.sub.2 CH.sub.3).sub.2, Hg(CH.sub.3).sub.2, Fe(CO).sub.5, (P)(O)(CH.sub.3)(F)[OCH(CH.sub.3).sub.2 ], S(CH.sub.2 CH.sub.2 Cl).sub.2, C.sub.6 H.sub.5 C(O)CH.sub.2 Cl, C(O)Cl.sub.2, C.sub.6 Cl.sub.5 OH, C.sub.6 H.sub.3 (OH)(NO.sub.2).sub.3, C.sub.6 H.sub.5 (Br)(CN), C.sub.6 H.sub.5 CH.sub.2 CN and (CF.sub.3)C.dbd.CF.sub.2 are provided wherein such compounds (either as gases, liquids or solids) are contacted with nanoscale oxide adsorbents, such as MgO and CaO, preferably at a temperature in the range of -70 to 90.degree. C. and at atmospheric pressure. The preferred adsorbents have an average particle size of from about 1-20 nm, and have a total pore volume of at least about 0.5 cc/g.

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