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US 4,897,500 AGranted
Method of deactivating residues of the production of dimethylaluminum hydride and dimethylgallium hydride
AssigneeCVD Incorporated
InventorsBenjamin C. Hui, Luis I. Victoriano
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Abstract
Waste material containing substantial amounts of Li(MH.sub.3 R) compounds where M is Al or Ga are deactivated by dissolving and/or dispersing the waste material in a solvent in which ionic deactivation products are soluble and then adding a carbonyl-containing compound which reacts with the Li(MH.sub.3 R) compound.
Claims11
A method of deactivating a pyrophoric waste material containing a substantial amount of a compound of the formula Li(MH.sub.3 R), wherein M is Al or Ga and R is a halogen or an alkyl moiety containing from 1-5 carbons, the method comprising:
- dissolving or dispersing said waste in a non-reactive solvent selected to be of sufficient polarity to dissolve ionic deactivation products of said Li(MH.sub.3 R) compound, and
- reacting said waste with a non-proton-donor, carbonyl-containing compound in at least a stoichiometric amount relative to said Li(MH.sub.3 R) compound.
Dependencies are inferred from the claim text.