Yellow phosphorus process to convert toxic chemicals to non-toxic products
Abstract
The present invention relates to a process for generating reactive species for destroying toxic chemicals. This process first contacts air or oxygen with aqueous emulsions of molten yellow phosphorus. This contact results in rapid production of abundant reactive species such as O, O.sub.3, PO, PO.sub.2, etc. A gaseous or liquid aqueous solution organic or inorganic chemicals is next contacted by these reactive species to reduce the concentration of toxic chemical and result in a non-toxic product. The final oxidation product of yellow phosphorus is phosphoric acid of a quality which can be recovered for commercial use. A process is developed such that the byproduct, phosphoric acid, is obtained without contamination of toxic species in liquids treated. A gas stream containing ozone without contamination of phosphorus containing species is also obtained in a simple and cost-effective manner. This process is demonstrated to be effective for destroying many types of toxic organic, or inorganic, compounds, including polychlorinated biphenyls (PCB), aromatic chlorides, amines, alcohols, acids, nitro aromatics, aliphatic chlorides, polynuclear aromatic compounds (PAH), dyes, pesticides, sulfides, hydroxyamines, ureas, dithionates and the like.
- Inventors:
-
- El Cerrito, CA
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- OSTI Identifier:
- 869405
- Patent Number(s):
- 5332563
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- yellow; phosphorus; process; convert; toxic; chemicals; non-toxic; products; relates; generating; reactive; species; destroying; contacts; air; oxygen; aqueous; emulsions; molten; contact; results; rapid; production; abundant; etc; gaseous; liquid; solution; organic; inorganic; contacted; reduce; concentration; chemical; result; product; final; oxidation; phosphoric; acid; quality; recovered; commercial; developed; byproduct; obtained; contamination; liquids; treated; gas; stream; containing; ozone; simple; cost-effective; manner; demonstrated; effective; types; compounds; including; polychlorinated; biphenyls; pcb; aromatic; chlorides; amines; alcohols; acids; nitro; aromatics; aliphatic; polynuclear; pah; dyes; pesticides; sulfides; hydroxyamines; ureas; dithionates; yellow phosphorus; aromatic compound; liquid aqueous; polychlorinated biphenyl; aromatic compounds; gas stream; aqueous solution; phosphoric acid; stream containing; polychlorinated biphenyls; reactive species; toxic chemicals; rapid production; oxidation product; containing species; toxic organic; active species; polynuclear aromatic; organic chemical; non-toxic products; organic chemicals; non-toxic product; toxic chemical; aqueous emulsion; contacts air; cost-effective manner; /423/210/
Citation Formats
Chang, Shih-Ger. Yellow phosphorus process to convert toxic chemicals to non-toxic products. United States: N. p., 1994.
Web.
Chang, Shih-Ger. Yellow phosphorus process to convert toxic chemicals to non-toxic products. United States.
Chang, Shih-Ger. Sat .
"Yellow phosphorus process to convert toxic chemicals to non-toxic products". United States. https://www.osti.gov/servlets/purl/869405.
@article{osti_869405,
title = {Yellow phosphorus process to convert toxic chemicals to non-toxic products},
author = {Chang, Shih-Ger},
abstractNote = {The present invention relates to a process for generating reactive species for destroying toxic chemicals. This process first contacts air or oxygen with aqueous emulsions of molten yellow phosphorus. This contact results in rapid production of abundant reactive species such as O, O.sub.3, PO, PO.sub.2, etc. A gaseous or liquid aqueous solution organic or inorganic chemicals is next contacted by these reactive species to reduce the concentration of toxic chemical and result in a non-toxic product. The final oxidation product of yellow phosphorus is phosphoric acid of a quality which can be recovered for commercial use. A process is developed such that the byproduct, phosphoric acid, is obtained without contamination of toxic species in liquids treated. A gas stream containing ozone without contamination of phosphorus containing species is also obtained in a simple and cost-effective manner. This process is demonstrated to be effective for destroying many types of toxic organic, or inorganic, compounds, including polychlorinated biphenyls (PCB), aromatic chlorides, amines, alcohols, acids, nitro aromatics, aliphatic chlorides, polynuclear aromatic compounds (PAH), dyes, pesticides, sulfides, hydroxyamines, ureas, dithionates and the like.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}