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WO/1995/015936A1 |
Fluorinated olefins are produced by thermolysis of a silyl ester of a fluorinated aliphatic carboxylic acid in the presence of a catalyst which provides fluoride ion, such as potassium fluoride. The fluorinated olefins are useful as mono...
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WO/1995/015935A1 |
In the production of vinyl chloride by the thermal splitting of 1,2-dichloroethane, first of all hydrogen chloride, then vinyl chloride and finally hydrogen chloride taken along with vinyl chloride are distilled off in three stages. If w...
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WO/1995/010484A1 |
The chlorine or halide content in a chlorinated hydrocarbon or halogenated aromatic hydrocarbon in an environment which admits to the presence of air and moisture can be reduced by bringing the chlorinated hydrocarbon or halogenated arom...
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WO/1995/007252A1 |
A method for the catalytic oxychlorination of ethane to VCM comprising the steps of combining ethane and a chlorine source in an oxychlorination reactor with a suitable catalyst to promote the oxychlorination of the ethane, collecting th...
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WO/1995/007249A1 |
A method for the catalytic oxychlorination of ethane to VCM comprising combining ethane and a chlorine source in an oxychlorination reactor in the presence of an oxychlorination catalyst, the reaction conditions being selected to reduce ...
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WO/1995/005353A1 |
Alternatives to chlorofluorocarbons are provided by the inventive process for synthesizing fluorine-containing products RCFbHc+a-1Hf+d-1FeCR' which may optionally be carried out without the isolation of any intermediate in a single react...
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WO/1995/004727A1 |
A process for the preparation of a compound of formula (I) : HetSCH2CH2CH=CF2 wherein Het is an optionally substituted 5- or 6-membered heterocyclic ring, which comprises reacting a compound of formula (II) : HetSH with a compound of for...
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WO/1994/029250A1 |
Tetrafluoroethylene is made safe (non-explosive) to handle by forming a liquid solution of tetrafluoroethylene and carbon dioxide, one in the other, in a pressurized container.
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WO/1994/023008A1 |
Azeotropic compositions include a perfluorinated alkane or alkene and an organic solvent, selected from the group consisting of hydrofluorocarbons, hydrochlorofluorocarbons, siloxanes, ethers, 2, 3-dimethyl butane, 2, 3-dimethyl pentane ...
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WO/1994/017020A1 |
A process for producing 1,1,1,4,4,4-hexafluoro-2-butenes comprising a mixture of 1,1,1,4,4,4-hexafluoro-2,3-dichloro-2-butene, 1,1,1,4,4,4-hexafluoro-2-chloro-2-butene and 1,1,1,4,4,4-hexafluoro-2-butene by the reaction of at least one m...
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WO/1994/017109A1 |
A process for producing a fluoro(co)polymer by (co)polymerizing a fluoro-olefin which aims at using a substance that can substitute for R-113 or R-114 conventionally used as the solvent, solving the problem of coloration of the formed fl...
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WO/1994/014736A1 |
A process for producing 1,1,1,3,3-pentafluoropropane by the reaction of 1,1,1,3,3-pentafluoro-2,3-dichloropropane with hydrogen fluoride in the presence of a noble metal catalyst; a process for producing 1,1,1,3,3-pentafluoro-2-halogeno-...
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WO/1994/014741A1 |
Disclosed herein are novel monomers of the formula CF2 = CF(CF2)nCH2OCF = CF2, wherein n is 1,2 or 3, and novel intermediates of the formula CF2C1CFCl(CF2)nCH2OCF = CF2 wherein n is 1, 2 or 3. Also disclosed is a fluoro-polymer containin...
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WO/1994/013609A1 |
The fluorine content of an acyclic saturated compound of the formula CnFaXbHc (wherein each X is independently selected from the group consisting of C1 and Br, and wherein n is 1 to 6, a is 1 to 13, b is 0 to 12, c is 1 to 9, and a + b +...
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WO/1994/009625A2 |
Storage stable fluorocarbon emulsions having a continuous aqueous phase and a discontinuous fluorocarbon phase, in which the fluorocarbon phase comprises a major amount of a first fluorocarbon or fluorocarbon mixture, and a minor amount ...
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WO/1994/009897A1 |
Lower monobasic or dibasic alcohols are produced by the following steps: a) reacting a starting material with a metallic halide (wherein the metal is in the higher of two possible valence states) to obtain a reaction product, a correspon...
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WO/1994/007816A1 |
A process for the catalytic conversion of 1,3-dichloropropene to reaction products including propylene in a commercially substantial proportion, in which 1,3-dichloropropene is reacted with hydrogen in the presence of a catalyst includin...
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WO/1994/007820A1 |
A process for the catalytic conversion of 1,1,1,2-tetrachloroethane to reaction products including vinylidene chloride in a commercially substantial proportion, in which 1,1,1,2-tetrachloroethane is reacted with hydrogen in the presence ...
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WO/1994/007826A1 |
A process for the catalytic conversion of chlorinated alkene byproducts and waste products especially to reaction products including other less-chlorinated and more useful alkenes in substantial proportion, in which a chlorinated alkene ...
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WO/1994/007828A1 |
A process for the catalytic conversion of various chlorinated hydrocarbon byproducts and waste products especially to less chlorinated, useful or salable products, in which a chlorinated hydrocarbon feedstock is reacted with hydrogen in ...
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WO/1994/007819A1 |
A process for the catalytic conversion of 1,2-dichloropropane to propylene with a high degree of conversion and selectivity, in which 1,2-dichloropropane is reacted with hydrogen in the presence of a catalyst including a Group VIII metal...
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WO/1994/007821A1 |
A process for the catalytic conversion of 1,2,3-trichloropropane to reaction products including propylene or allyl chloride with good yield and selectivity, in which 1,2,3-trichloropropane is reacted with hydrogen in the presence of a ca...
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WO/1994/007822A1 |
A process for the conversion of a chlorinated alkane feedstock to reaction products including a less chlorinated alkane in a commercially substantial proportion, characterized in that the chlorinated alkane feedstock is reacted with hydr...
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WO/1994/007823A1 |
A process for the catalytic conversion of 1,1,2-trichloroethane to reaction products including one or both of ethylene and vinyl chloride in a commercially substantial proportion, in which 1,1,2-trichloroethane is reacted with hydrogen i...
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WO/1994/007825A1 |
A process for the catalytic conversion of various chlorinated alkene byproducts and waste products especially to reaction product including corresponding less chlorinated, useful or salable alkanes in substantial proportions, in which a ...
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WO/1994/007817A1 |
A process for the catalytic conversion of 2-chloropropene to reaction products including propylene in a commercially substantial proportion, in which 2-chloropropene is reacted with hydrogen in the presence of a catalyst including one or...
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WO/1994/007824A1 |
A process for the catalytic conversion of perchloroethylene to reaction products including trichloroethylene in a commercially substantial proportion, in which perchloroethylene is reacted with hydrogen in the presence of a catalyst incl...
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WO/1994/007827A1 |
A process for the catalytic conversion of various chlorinated alkane byproducts and waste products especially to reaction products including a useful or salable less chlorinated alkene, in which a chlorinated alkane feedstock is reacted ...
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WO/1994/007818A1 |
A process for the catalytic conversion of 2-chloropropane to propylene, characterized in that 2-chloropropane is reacted with hydrogen in the presence of a catalyst including a Group VIII metal such as platinum in elemental or compound f...
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WO/1994/005609A1 |
The admixture of benzotrichloride allows considerably higher yields of vinyl chloride to be obtained by thermal cleavage of 1,2-dichloroethane.
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WO/1994/005611A1 |
A process for producing 1,1,1,2,3,3-hexafluoropropane which comprises dechlorofluorinating 1,1,2,2-pentafluoro-3,3-dichloropropane and/or 1,1,2,2,3-pentafluoro-1,3-dichloropropane with hydrogen in the presence of a metal oxide catalyst, ...
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WO/1994/003419A1 |
A process is disclosed for separating components of an azeotropic or azeotrope-like mixture containing only organic compounds at least one of which compound is a halocarbon comprising contacting said azeotropic or azeotrope-like mixture ...
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WO/1993/025510A1 |
A process for producing 1,1,1,2,3-pentafluoropropene in a high yield from a readily available 1,1,1,2,3,3-hexafluoropropane industrially at a low cost, which process comprises bringing the gaseous hexafluoropropane into contact with acti...
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WO/1993/024206A1 |
Removal of organic compounds from a water stream (3) involves gas stripping in gas stripper (1), followed by membrane separation of the stripping gas containing the organic compound (5) in membrane separator (2). Stripping can be carried...
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WO/1993/022263A1 |
1,1,1,4,4,4 hexafluorochlorobutenes are obtained by the pyrolysis of 1,1,1 trifluoro-2,2-dichloroethane. Hexafluorochlorobutenes thus obtained can be converted by hydrogenation into hexafluorobutane, a CFC substitute.
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WO/1993/020178A1 |
Azeotropic or azeotrope-like compositions of effective amounts of 1,1,2,2,3,3,4,4-octofluorobutane and trans-1,2-dichloroethylene; cis-1,2-dichloroethylene; or 1,1-dichloroethane to form an azeotropic or azeotrope-like composition are di...
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WO/1993/020177A1 |
Azeotropic or azeotrope-like compositions of effective amounts of 1,1,2,2,3,3,4,4-octofluorobutane; trans-1,2-dichloroethylene, cis-1,2-dichloro-ethylene, 1,1-dichloroethane, or 1,3-dichloro-1,2,2,3,3-HCFC-225cb; and an alcohol such as m...
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WO/1993/019028A1 |
Quaternary ammonium phase transfer catalyst is removed from the dehydrochlorination product of 3,4-dichlorobutene-1 by treatment of the organic, chloroprene-containing phase with an oxy acid which combines with the catalyst to form a sep...
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WO/1993/016024A1 |
The present invention relates to a new antitumor compound, a method for isolating same from a red alga, antitumor compositions containing same and methods of using same for treating patients with cancer. The compound of the present inven...
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WO/1993/015086A1 |
A novel zerovalent zinc species and an organozinc reagent are disclosed. The zerovalent zinc species is directly produced by reaction of a reducing agent on a zinc salt, preferably Zn(CN)¿2?. The organozinc reagent results from the reac...
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WO/1993/014051A1 |
A process for industrially producing at least one halogen compound selected from the group consisting of 1,1,1,4,4,4-hexafluoro-2,3-dichlorobutane, 1,1,1,4,4,4-hexafluoro-2-chloro-2-butene, 1,1,1,2,4,4,4-hepta-fluoro-2-butene and 1,1,1,2...
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WO/1993/010080A1 |
A method for inhibiting fouling in an organic process stream which is substantially non-aqueous by the addition of certain oxime compounds.
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WO/1993/007308A1 |
Azeotropic mixtures of 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) and trans-1,2-dichloroethylene, cis-1,2-dichloroethylene or 1,1-dichloroethane are useful as cleaning agents, expansion agents for polyolefins and polyurethanes,...
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WO/1993/005002A2 |
A catalytic process is disclosed for producing fluorine-substituted hydrocarbon products of the formulae RCH2CF2R and RFC=CHR at an elevated temperature, from compounds of the formula RCHFCHFR, where each R is independently selected from...
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WO/1993/002029A1 |
Catalytic hydrogenolysis of fluorohalocarbons (e.g., CFCs) and fluorohalohydrocarbons (e.g., HCFCs), using catalysts of Re, Co, Ni, Ru, Rh, Pd, Os, Ir, and/or Pt on a carbon having low ash content. Preferred catalysts use carbon which is...
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WO/1992/012947A1 |
Inhibition of popcorn polymer growth by treatment with a compound including a Group IV element, and at least one hydrogen bonded to the Group IV element. This compound can be admixed with organic material from which popcorn polymer is fo...
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WO/1992/012948A1 |
Inhibition of popcorn polymer growth by treatment with an alkyl halide. This compound can be admixed with organic material from which popcorn polymer is formed, or added to a system for the recovery, use or storage of such organic material.
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WO/1992/013041A1 |
Inhibition of popcorn polymer growth by treatment with an inorganic acid ester. This compound can be admixed with oganic material from which popcorn polymer is formed, or added to a system for the recovery, use or storage of such organic...
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WO/1992/012949A1 |
Inhibition of popcorn polymer growth by treatment with a sulfur-containing compound. The sulfur-containing compound can be added to organic material from which popcorn polymer is formed, or applied to extant popcorn polymer.
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WO/1992/012946A1 |
A process for reacting ethane with chlorine to produce a mixture of ethylene and vinyl chloride is disclosed. The process involves the intimate mixing of ethane and chlorine in an ethane to chlorine ratio of at least about 0.9:1 at a tem...
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