Yellow phosphorus process to convert toxic chemicals to non-toxic products
- El Cerrito, CA
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.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- DOE Contract Number:
- AC03-76SF00098
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Number(s):
- US 5332563
- OSTI ID:
- 869405
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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
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