Patents in Class 568/71

Matches 1 - 42 out of 42

Match	Document	Document Title
1	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.
2	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...
3	7691776	Catalyst for the synthesis of alkyl mercaptan and process for the production thereof The invention relates to an oxidic catalyst containing cesium and tungsten for the synthesis of alkyl mercaptans from alkanols and hydrogen sulfide, and to a process for the production of this...
4	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...
5	7622613	Thiol compound and photosensitive composition using the same The present invention relates to a thiol compound represented by formula (1): wherein R1, R2 and n have the same meanings as in the specification, method for producing the compound, and to a...
6	7582800	Process for preparing alkyl mercaptans in a multizone fixed bed reactor The invention relates to a process for preparing alkyl mercaptans by catalytic gas phase reaction of alkanols and hydrogen sulphide over alkali metal tungstates, the reaction being performed in at...
7	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...
8	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...
9	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...
10	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...
11	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...
12	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...
13	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...
14	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...
15	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 α- or ...
16	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...
17	4482744	Methanol conversion process A process is provided wherein methanol is converted over spent shale to products such as mercaptans, disulfides and ethylene.
18	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.
19	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...
20	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...
21	3697602	PROCESS FOR THE PRODUCTION OF LOWER ALIPHATIC MERCAPTANS Lower alkyl mercaptans prepared from alkanols and hydrogen sulfide are obtained in pure form by separating the gaseous mixture of hydrogen sulfide, alkanol, alkyl mercaptan, dialkyl sulfide, water,...
22	3548007	PRODUCTION OF DIMETHYL SULFIDE
23	3792094	APPARATUS AND PROCESS FOR PRODUCING METHYL MERCAPTAN
24	3401203	Preparation of amines
25	3198839	Process for the preparation of mercaptans
26	3081353	Process for the production of methyl mercaptan
27	3053902	Preparation of mercaptans
28	3035097	Novel catalytic process for preparation of mercaptans by reaction of h2s with alcohols or ethers
29	2976322	Preparation of methanethiol
30	2950323	Mercaptan synthesis
31	2874129	Preparation of catalysts for methanethiol synthesis
32	2829171	Preparation of mercaptans and sulfides
33	2822400	Methyl mercaptan production process
34	2822401	Methyl mercaptan production process
35	2820062	Preparation of organic thiols
36	2819313	Methyl mercaptan manufacture from methanol and hydrogen sulfide
37	2813126	Process for selective removal of h2s by absorption in methanol
38	2808441	Fractional condensation method of methanethiol recovery from reaction mixtures thereof
39	2807649	Process for the manufacture of methyl mercaptan from methanol and hydrogen sulfide
40	2797191	Methyl mercaptan distillation
41	2796438	Methyl mercaptan-methyl sulfide process
42	2786079	Production of organic thiols

Matches 1 - 42 out of 42