US Patent No: 4,648,977

Number of patents in Portfolio can not be more than 2000

Process for removing toxic organic materials from weak aqueous solutions thereof

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Importance

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Abstract

Toxic or otherwise contaminating organic impurity constituents in aqueous media such as waste water streams from industrial processes or potable water supplies are removed and converted to harmless oxidation products by contacting such media with an organophilic molecular sieve whereby the organic species are concentrated as adsorbates, and thereafter contacting the adsorbate-loaded molecular sieve with an aqueous solution of a compound which has a standard oxidation potential of at least 0.25 volt in an amount and for a sufficient time to convert the organic materials to non-toxic products such as CO.sub.2.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
UOP LLCDES PLAINES, IL3853

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Garg, Desh R Hopewell Junction, NY 6 119
Ritscher, James S Cody, WY 25 333

Cited Art

Patent Info (Count) # Cites Year
 
Mobil Oil Corporation (1)
4,335,020 Method of preparation of composite zeolite catalysts 9 1981
 
UOP LLC (1)
4,257,885 Novel zeolite compositions and processes for preparing and using same 49 1979

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
UOP LLC (6)
4,795,482 Process for eliminating organic odors and compositions for use therein 73 1987
4,826,497 Fibrous absorbent articles having enhanced deodorizing properties 75 1987
4,786,418 Process for aqueous stream purification 8 1988
4,855,154 Process for deodorizing marine oils 9 1988
5,013,335 Process for sequestering ammonia and the odor associated therewith 27 1988
5,248,395 Process for purifying aqueous media 32 1989
 
Minnesota Mining and Manufacturing Company (4)
5,529,686 Composite membranes for solid phase extractions and reactions 19 1995
5,639,372 Composite membranes for solid phase extractions and reactions 9 1996
5,635,060 Composite membranes for solid phase extractions and reactions 15 1996
5,738,790 Composite membranes for solid phase extractions and reactions 13 1997
 
S.C. JOHNSON & SON, INC. (3)
7,407,922 Deodorizing compositions 1 2005
7,261,742 Method of deodorizing a textile 2 2006
7,407,515 Method of deodorizing a textile 0 2007
 
A.E. STALEY MANUFACTURING COMPANY (1)
4,944,953 Purification of hydrolysed protein with crystalline zeolite 0 1989
 
ATLANTIC RICHFIELD COMPANY (1)
H001651 Extraction and disposal of organic wastes with polymer coated porous substrate 0 1995
 
ECO PURIFICATION SYSTEMS, BV (1)
5,505,856 Process for the purification of contaminated water by activated ozone 20 1995
 
GENERAL ELECTRIC COMPANY (1)
6,340,736 Method and apparatus for the production of polycarbonates with brine recycling 12 1999
 
SPECIAL MATERIALS RESEARCH AND TECHNOLOGY, INC. (1)
6,409,889 Method for the removal and recovery of inorganic pollutants from waste aqueous solutions and waste primary air sources 1 1999
 
Westinghouse Electric Corp. (1)
5,122,268 Apparatus for waste disposal of radioactive hazardous waste 11 1989
 
ZEOTECH CORPORATION (1)
8,338,329 Fluid filtration medium 0 2009
 
Other [Check patent profile for assignment information] (2)
H1651 Extraction and disposal of organic wastes with polymer coated porous substrate 0 1995
5,707,528 System and process for treating organic-contaminated aqueous waste streams 15 1996