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Title: Clean process to destroy arsenic-containing organic compounds with recovery of arsenic

Abstract

A reduction method is provided for the treatment of arsenic-containing organic compounds with simultaneous recovery of pure arsenic. Arsenic-containing organic compounds include pesticides, herbicides, and chemical warfare agents such as Lewisite. The arsenic-containing compound is decomposed using a reducing agent. Arsine gas may be formed directly by using a hydrogen-rich reducing agent, or a metal arsenide may be formed using a pure metal reducing agent. In the latter case, the arsenide is reacted with an acid to form arsine gas. In either case, the arsine gas is then reduced to elemental arsenic.

Inventors:
 [1];  [2]
  1. (Pleasanton, CA)
  2. (Danville, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
870560
Patent Number(s):
5545800
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
clean; process; destroy; arsenic-containing; organic; compounds; recovery; arsenic; reduction; method; provided; treatment; simultaneous; pure; pesticides; herbicides; chemical; warfare; agents; lewisite; compound; decomposed; reducing; agent; arsine; gas; formed; directly; hydrogen-rich; metal; arsenide; latter; reacted; acid; form; reduced; elemental; simultaneous recovery; containing compound; formed directly; containing organic; organic compound; organic compounds; reducing agent; reduction method; warfare agent; arsenic-containing organic; chemical warfare; pure metal; /588/75/423/

Citation Formats

Upadhye, Ravindra S., and Wang, Francis T. Clean process to destroy arsenic-containing organic compounds with recovery of arsenic. United States: N. p., 1996. Web.
Upadhye, Ravindra S., & Wang, Francis T. Clean process to destroy arsenic-containing organic compounds with recovery of arsenic. United States.
Upadhye, Ravindra S., and Wang, Francis T. Mon . "Clean process to destroy arsenic-containing organic compounds with recovery of arsenic". United States. https://www.osti.gov/servlets/purl/870560.
@article{osti_870560,
title = {Clean process to destroy arsenic-containing organic compounds with recovery of arsenic},
author = {Upadhye, Ravindra S. and Wang, Francis T.},
abstractNote = {A reduction method is provided for the treatment of arsenic-containing organic compounds with simultaneous recovery of pure arsenic. Arsenic-containing organic compounds include pesticides, herbicides, and chemical warfare agents such as Lewisite. The arsenic-containing compound is decomposed using a reducing agent. Arsine gas may be formed directly by using a hydrogen-rich reducing agent, or a metal arsenide may be formed using a pure metal reducing agent. In the latter case, the arsenide is reacted with an acid to form arsine gas. In either case, the arsine gas is then reduced to elemental arsenic.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

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