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| Number | Title | Issue Date |
| 7192565 | Method of collecting mercaptans contained in a gaseous feed The gaseous feed flowing in through line 1 is contacted in contacting zone ZA with a liquid solvent flowing in through line 2. The solvent comprises between 0.001% and 100% by weight of a liquid olefin. Contacting in zone ZA is carried out in the prese... | 03/20/2007 |
| 7053123 | Substituted (e)-styryl benzylsulfones for treating proliferative disorders (E)-Styryl benzylsulfones useful as antiproliferative agents, including, for example, anticancer agents, are provided according to formula I: wherein: R1 is selected from the group consisting of halogen, C1–C6 alkoxy, nitro, phosphonato, amino, sulfamyl... | 05/30/2006 |
| 6410793 | Production of formaldehyde from carbon oxides and H2S A method wherein a gas stream containing carbon oxide and hydrogen sulfide is first passed in contact with a catalyst comprising a supported metal oxide of a metal selected from the group consisting of vanadium (V), niobium (Nb), molybdenum (Mo), chromium... | 06/25/2002 |
| 6326519 | Diallylic sulfides and processes for preparing the same Diallylic sulfides represented by Formula I ##STR1## wherein: R1 and R2 are independently chosen from the group consisting of --CHO, --CH2 Cl, --CH2 Br, --CH2 I, --CH2 OH, CH2 OS... | 12/04/2001 |
| 5977011 | Catalyst, process for its preparation, and use for synthesis of methyl mercaptan A catalyst for the synthesis of methyl mercaptan from hydrogen sulfide and methanol as well as a process for preparation of the catalyst. The catalyst is an active aluminum oxide onto which 5 to 25% by weight potassium tungstate is deposited as an activat... | 11/02/1999 |
| 5324858 | New sulfured compounds New sulfurized compounds, their preparation and their use are described. They correspond to the general formula: {[R--SX --(CH2)n --]z CH3-z --(CH2)P --}2 Sy, in... | 06/28/1994 |
| 5321163 | Multi-purpose catalytic distillation column and eterification process using same A multi-purpose distillation column reactor is disclosed which may be used for the production of tertiary amyl methyl ether from the reaction of the isoamylenes contained in a light naphtha with methanol. Two reaction distillation zones are disposed above... | 06/14/1994 |
| 5304683 | Conversion of alkyl mercaptan to dialkyl sulfide and catalyst therefor A process for converting at least one alkyl mercaptan to a dialkyl sulfide can be carried out by contacting the alkyl mercaptan, and optionally an alkene, with an alumina catalyst under conditions sufficient to substantially covert the alkyl mercaptan to ... | 04/19/1994 |
| 5266727 | Purification of alkyl sulfides A process for purifying alkyl sulfides by absorption of the organosulfur impurities on an absorbent. The absorber is a copper salt deposited on a high surface area support. The purified alkyl sulfide is useful as an extractant for palladium.... | 11/30/1993 |
| 5189164 | Processes for the synthesis of syn-(E)-3,5-dihydroxy-7-substituted hept-6-enoic and heptanoic acids and derivatives and intermediates thereof A process for synthesizing syn-(E)-3,5-dihydroxy-7-substituted hept-6-enoic and heptanoic acids and derivatives and intermediates thereof from the corresponding keto-hydroxy compounds, which process comprises: providing a reaction medium comprising sodium... | 02/23/1993 |
| 5105028 | Separation of hetero-atom(s) containing hydrocarbons Process for preparing one or more hetero-atoms containing hydrocarbons by contacting one or more hydrocarbons with a plasma-generated system derived from a source containing hydrogen atoms(s) and at least one hetero-atom in which process the plasma-genera... | 04/14/1992 |
| 4964957 | Purification of high boiling alkyl sulfides A process for preventing the substantial decomposition of an alkyl sulfide compound at high temperatures comprising combining a non-reactive basic compound with the alkyl sulfide compound prior to subjecting the resultant mixture to the high temperatures.... | 10/23/1990 |
| 4822918 | Reduction of organic sulfur compounds Organic sulfur compounds, such as sulfonic acids, sulfonyl halides, sulfonates, sulfonamides, sulfonic acid anhydrides, sulfones, sulfoxides and/or disulfanes, are reduced by a method in which the sulfur compound in the liquid or gas phase is reacted with... | 04/18/1989 |
| 4668825 | Production of methanethiol from H2 S and CO Methanethiol is produced from a gaseous feed comprising a mixture of H2 S and CO by contacting said feed with a catalyst comprising rutile titania at a temperature of at least about 225° C.... | 05/26/1987 |
| 4618722 | Preparation of organic sulfides A process for preparing dihydrocarbyl sulfides comprises the step of simultaneously contacting (a) a dialkyl sulfoxide, preferably dimethyl sulfoxide, with (b) a hydrocarbyl halide, particularly an alkyl or alkenyl bromide, and (c) a metal carboxylate, pr... | 10/21/1986 |
| 4570020 | Production of methanethiol from H2 S and CO Methanethiol is produced from a gaseous feed comprising a mixture of H2 S and CO by contacting said feed, at a temperature of at least about 225° C., with a catalyst comprising an oxide of a metal selected from the group consisting of V, Nb, a... | 02/11/1986 |
| 4568767 | Process for the manufacture of dialkyl sulfides A process is provided for the preparation of dialkyl sulfides by reacting alkenes and hydrogen sulfide at elevated temperature in the presence of a Type X, Y or L zeolite containing from about 5 to 15 percent by weight of alkali metal, expresed as Me... | 02/04/1986 |
| 4482744 | Methanol conversion process A process is provided wherein methanol is converted over spent shale to products such as mercaptans, disulfides and ethylene.... | 11/13/1984 |
| 4449005 | Dehydrohalogenation process Aliphatic and cycloaliphatic halogen compounds containing a halogen atom and a hydrogen atom attached to adjacent carbon atoms are dehydrohalogenated to the corresponding unsaturated compounds by contact with a quaternary ammonium fluoride or quaternary p... | 05/15/1984 |
| 4449004 | Process for preparing organic sulphides A process for preparing organic thioethers of formula R--S--R1 in which R is an aliphatic, aryl, arylaliphatic or heterocyclic radical and R1 is an aliphatic or arylaliphatic radical, from organic dithiocarbonates and organic halides... | 05/15/1984 |
| 4302605 | Process for the manufacture of dimethyl sulfide A process is provided for preparing dialkyl sulfides by reacting alkanols and hydrogen sulfide in the presence of a zeolite catalyst that contains a reduced amount of alkali metal cations.... | 11/24/1981 |
| 4186061 | Fractionation of methyl-mercaptan reactor effluent A method for separating a feedstock comprising hydrogen sulfide, methyl mercaptan, methanol, and water in which a sufficient amount of water is injected into the fractionating column above the feedstock inlet to water wash the organic phase, decanting wat... | 01/29/1980 |
| 3978198 | Method for producing carbon disulfide A method for producing carbon disulfide by sulfurization of sulfur-containing organic compounds is described. Conventional apparatus may be employed with realization of reactant conversion rates approaching 100%, and production of undesirable by-products ... | 08/31/1976 |
| 3948922 | Oxidation of thiols and disulfides to sulfonic acids A process for formation of a sulfonic acid through oxidation of a thiol or disulfide. The process is carried out in the presence of a sulfoxide such as dimethyl sulfoxide, a halogen or hydrogen halide catalyst, and an excess quantity of water. The water a... | 04/06/1976 |
