Organic Patents (Class 502/401)
  • Patent number: 4454099
    Abstract: One or more sorbent bases selected from the group consisting of the alkali and alkaline earth metal oxides, hydoxides, carbonates and bicarbonates are treated with at least one organic halide of the general formula R--X.sub.n where R is an organic radical containing from 1 to about 12 carbon atoms, X is a halogen atom and n has a value from 1 to about 10 to form a sorbent suitable for removing acidic substances from gas mixtures.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: June 12, 1984
    Assignee: Phillips Petroleum Company
    Inventor: Arlo J. Moffat
  • Patent number: 4443354
    Abstract: Granular sorbent material comprising a granular high surface area support impregnated with a water soluble, essentially non-volatile primary or secondary amine with equivalent weight less than about 400 and bearing either zero or two carbonyl substituents attached directly to the amino nitrogen atom is disclosed. The resulting material can be used as the filtration media in respirators, powered air purifiers, room air purifiers, ventilation filters, exhaust filters, process gas filters and the like to reduce the formaldehyde content of air.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: April 17, 1984
    Assignee: Minnesota Minning and Manufacturing Company
    Inventor: Gilbert L. Eian
  • Patent number: 4440867
    Abstract: This invention is concerned with production and use of high surface area particulate matter by calcining a charge of clay mineral, feldspar, zeolite, coal ash, fly ash, pozzolan or volcanic ash for a time to develop fractures which increase the surface area of the particles. Vacuum calcining decreases the calcining time. The calcined matter desirably has an analysis including: calcium oxide, about 20-40 weight %; aluminum oxide, about 15-35 weight %; and silicon oxide, about 20-40 weight %.The calcined particulate matter can be used in the treatment of impure aqueous materials; the matter is denser than water and sludge settles rapidly and completely. The calcined matter interacts with heavy metal ions to form tightly bound sludge that is nonhazardous for landfill disposal. The calcined matter can be combined with conventual coagulants, flocculants, filter aids, or activated carbon to obtain a multipurpose treating agent.
    Type: Grant
    Filed: May 14, 1982
    Date of Patent: April 3, 1984
    Assignee: Ensotech, Inc.
    Inventor: Inderjit H. Sabherwal
  • Patent number: 4432871
    Abstract: An adsorbing material for an autoantibody and/or immune complexes is provided. The adsorbing material has an insoluble carrier and an organic low-molecular-weight compound containing a hydrophobic compound, which is fixed to the insoluble carrier. The adsorbing material may be used in an adsorbing device, which has a vessel having fluid inlet and outlet openings with the adsorbing material being contained in the vessel. The adsorbing device may be used in a blood purifying apparatus for absorbing and removing an autoantibody and/or immune complexes from blood plasma, which apparatus has (a) a plasma separating device and (b) a blood-plasma mixing device, which are disposed in series in a blood circulation passage, and (c) a plasma purifying device comprising the adsorbing device disposed in a plasma recycle passage connected to the blood circulation passage to introduce plasma, separated in the plasma separating device, into the mixing device.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: February 21, 1984
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Maokuni Yamawaki, Shozo Suzuki, Tadaaki Furuta
  • Patent number: 4432877
    Abstract: Compositions in which organo-mercurial moieties are bound to glass or other inorganic substrates are useful in separating sulfhydryl-containing compounds from mixtures with other compounds, e.g., by affinity chromatography.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: February 21, 1984
    Assignee: New England Nuclear Corporation
    Inventor: Nathan R. Tzodikov
  • Patent number: 4422975
    Abstract: Novel solid salt compositions are described containing, for example, tetraaryl- and triarylaralkyl-phosphonium and arsonium cations and tetraaryl- and tetraaryloxy-boranates and aluminates and polyanionic metal oxide surfaces, for example, as anions. The salts are useful for extracting aromatics and olefins from paraffinic hydrocarbon and aqueous liquid feedstreams, and from vapor and gas feedstreams by absorption.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: December 27, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventor: Howard L. Mitchell