|8022254||Catalysts comprising halide-containing alkali tungstates for the synthesis of alkylmercaptan, and process for their preparation|
The invention relates to a halide-containing alkali tungstate catalyst for the synthesis of alkylmercaptans from alkanols and hydrogen sulfide, and to a process for the preparation of this catalyst. ...
|7759523||Catalysts containing tungstate for the synthesis of alkylmercaptane and method for the production thereof|
The invention relates to a catalyst containing alkali tungstate for the synthesis of alkylmercaptanes from alkanols and hydrogen sulphide, in addition to a method for the production of said catalyst, wherein the molar ratio of alkali to tungstan is
|7687667||Catalyst for the production of methyl mercaptan from methanol and hydrogen sulfide|
The invention relates to a catalyst for the synthesis of methyl mercaptan from hydrogen sulfide and methanol and to a process for preparing methyl mercaptans. The catalyst comprises active aluminum oxide on which an alkali metal tungstate and ammonium salts have bee...
|7368611||Process for the continuous production of methylmercaptan|
The invention relates to a process for the continuous production of methylmercaptan by reacting a starting gas mixture of methanol and hydrogen sulphide in the gas phase at a reaction temperature between 200 and 600° C. and an operating pressure of 1.5 to 40 bar on...
|7326393||Process for the conversion of polysulfanes|
The invention provides a process for the removal of polysulfanes from gas streams formed during H2S synthesis. ...
|7256319||Catalysts for production of olefins by oxidative dehydrogenation, and methods of making and using the same|
The present invention provides a catalyst composition for the production of olefins by oxidative dehydrogenation of hydrocarbons, and of using such catalyst compositions. The catalysts of the present invention include compositions of the formula: Xx
|7199270||Method for the separation of methyl mercaptan from reaction gas mixtures|
The invention relates to a method for the separation of methyl mercaptan from reaction gas mixtures obtained by means of the catalytic conversion of H2S with methanol, by means of converting the methyl mercaptan into MMP in the presence of the byproducts with acrole...
|6198003||Method for producing alkyl mercaptans and/or dialkyl monosulfides|
A highly efficient method of producing alkyl mercaptan and/or dialkyl monosulfides which involves employing carbon dioxide as an internal coolant is described. Only negligible amounts of carbonyl sulfide were formed. In addition, relatively easy separatio...
|5898012||Compositions comprising inorganic oxide and process for producing mercaptans|
A composition comprises at least one inorganic oxide and an oxygen-containing metal compound selected from the group consisting of a metal hydroxide, a metal oxide, and combinations of any two or more thereof. The composition can be optionally supported o...
|5886230||Process for continuous production of methyl mercaptan|
A process for continuous production of methyl mercaptan by catalytic reaction of methanol and hydrogen sulfide. Significant improvements in the pretreatment of the feed gas mixture and in utilization of the heat of reaction and the heat content of the pro...
|5874630||Synthesis of mercaptans from alcohols|
Disclosed is a method of making a mercaptan by reacting an aliphatic alcohol with hydrogen sulfide in a continuous gaseous phase reaction. The reaction is performed in the presence of a catalyst which comprises a catalytically active carrier that contains...
|5866721||Process for separating the product gas mixture from the catalytic synthesis of methyl mercaptan|
A process for separating the product gas mixture from the catalytic synthesis of methyl mercaptan. Because of improved separation of the product gas mixture into its components, less hydrogen sulfide and methyl mercaptan are lost in discharging the inert ...
|5852219||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 preparing the catalyst. The catalyst contains active aluminum oxide on which 15% to 40% by weight cesium tungstate is deposited as the activator....
|5847223||Process for the preparation of methyl mercaptan|
A process for the preparation of methyl mercaptan which comprises reacting methanol and hydrogen sulphide in the vapor phase in the presence of a catalyst, wherein the catalyst is an alkali metal carbonate deposited on alumina, and wherein the reaction is...
|5283369||Selective synthesis of mercaptans and catalyst therefor|
A process for producing a novel catalyst wherein an amorphous alumina gel is formed at least on the surface of an aluminum-containing material, the gel is heated to form crystalline - or ଲ-alumina trihydrate and the trihydrate is sulfided, th...
|5026915||Process for the manufacture of dialkyl disulfides|
A continuous process is disclosed for preparing dialkyl disulfides by reacting an alkyl alcohol and hydrogen sulfide in one reaction zone, and then passing the reactor effluent into a second reaction zone where it is reacted with elemental sulfur in the p...
|4482744||Methanol conversion process|
A process is provided wherein methanol is converted over spent shale to products such as mercaptans, disulfides and ethylene....
|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....
|3994980||Cobalt molybdate as catalyst for preparation of mercaptans from carbonyl compounds hydrogen sulfide and hydrogen|
Mercaptans are prepared by reacting an organic carbonyl compound with sulfur or hydrogen sulfide in the presence of a catalyst consisting essentially of cobalt, molybdenum and an inorganic oxide support material....
|3935276||Process for the manufacture of methyl mercaptan|
Process for the synthesis of methyl mercaptan by the reaction of methanol with hydrogen sulfide wherein a high degree of conversion and enhanced selectivity for the product are obtained by dividing the quantity of catalyst utilized in the reaction into a ...