| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Process for the preparation of 3-(methylthio)propanal | US667099 | 1996-06-20 | US5905171A | 1999-05-18 | Yung C. Hsu |
| A process for the continuous preparation of 3-(methylthio)propanal. A liquid reaction medium is contacted with a gaseous acrolein feed stream in a gas/liquid contact zone. The reaction medium contains 3-(methylthio)propanal, methyl mercaptan and a catalyst for the reaction between methyl mercaptan and acrolein. The gaseous acrolein feed stream comprises acrolein vapor and non-condensable gas. Acrolein is transferred from the acrolein feed stream to the reaction medium and reacts with methyl mercaptan in that medium to produce a liquid reaction product containing 3-(methylthio)propanal. The non-condensable gas is separated from the liquid reaction product. The reaction product is divided into a product fraction and a circulating fraction, and the circulating fraction is recycled to the gas/liquid contact zone. | ||||||
| 182 | Process for continuous production of methyl mercaptan | US885044 | 1997-06-30 | US5886230A | 1999-03-23 | Willi Hofen; Wolfgang Boeck; Stephan Rautenberg; Joerg Sauer; Dietrich Arntz; Ralf Goedecke; Wolfgang Taugner; Raymund Sonnenschein |
| 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 product gas mixture. The energy required to vaporize the methanol is derived partly from utilization of the heat of compression of the hydrogen sulfide gas and from the heat content of the product gas leaving the reactor. The heat of reaction is utilized to heat the feed gas mixture to the reaction temperature, with the help of an external gas heater. | ||||||
| 183 | Catalytic hydrogenolysis of organic thiocyanates and disulfides to thiols | US629824 | 1996-04-10 | US5728887A | 1998-03-17 | Stephen Ernest Jacobson |
| A process for the preparation of a thiol comprising reacting hydrogen with a thiocyanate or disulfide wherein the reaction with thiocyanate is conducted in the presence of a catalyst comprising a Group VIII metal or a mixture thereof; and the reaction with thiocyanate or with disulfide is conducted in the presence of a catalyst comprising a Group VIII metal or mixture thereof in the presence of a modifier metal selected from a group consisting of Group IB, Group IIB, Group IIIA, Group IVA, Group VA and Group VIA metal or mixture thereof, said catalyst being on a porous insoluble support. | ||||||
| 184 | Process for producing 2-hydroxy-4-methylthiobutanoic acid | US178315 | 1994-01-12 | US5386056A | 1995-01-31 | Kazuyuki Matsuoka |
| Methyl 2-hydroxy-4-methylthiobutanoate and formamide are produced by means of reacting 2-hydroxy-4-methylthiobutanamide obtained by hydration of 2-hydroxy-4-methylthiobutyronitrile with methyl formate. Said methyl 2-hydroxy-4-methylthiobutanoate is hydrolyzed to give 2-hydroxy-4-methylthiobutanoic acid and methanol. No sulfuric acid is employed as a reacting agent, hence exhaustion of a large quantity of ammonium sulfate is prevented. Formamide and methanol thus produced can be recycled as reactants. | ||||||
| 185 | Process for preparing an aqueous solution of an alkali metal salt of methionine | US807664 | 1991-12-16 | US5147664A | 1992-09-15 | Claude Gillonnier; Rene Moisson |
| An aqueous solution of an alkali metal salt of methionine, which can be used as an additive in feedstuffs, is made by hydrolysis of methionine amide with an alkali metal hydroxide. | ||||||
| 186 | Diarylacetylenes, the preparation and use thereof | US561328 | 1990-08-01 | US5087637A | 1992-02-11 | Bernd Janssen; Hans-Heiner Wuest |
| Diarylacetylenes of the formula I ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.2 and R.sup.3 are each hydrogen or, when R.sup.1 is hydrogen, together form a --C(CH.sub.3).sub.2 --B--C(CH.sub.3).sub.2 -- group (where B is --CH.sub.2 Ch.sub.2 -- or --CH(CH.sub.3)--) or --OC(Ch.sub.3) (Z)CH.sub.2 CH.sub.2 -- group (where Z is C.sub.1 -C.sub.2 -alkyl) or R.sup.2 is C.sub.1 -C.sub.3 -alkoxy and R.sup.3 is C.sub.1 -C.sub.10 -alkyl or, when R.sup.2 is hydrogen, R.sup.1 and R.sup.3 are each alkyl as defined above, R.sup.4 is C.sub.1 -C.sub.6 -alkyl and n is 0, 1 or 2, are prepared as described and used as active compounds in drugs and cosmetics. | ||||||
| 187 | Preparation of 3-(alkylthio) aldehydes | US483343 | 1990-02-20 | US5015776A | 1991-05-14 | Stanley R. Sandler |
| A process for preparing 3-(C.sub.1 -C.sub.12 alkylthio) C.sub.3 -C.sub.10 aldehydes by reacting a C.sub.1 -C.sub.12 alkyl mercaptan with an .alpha.,.beta.-unsaturated aliphatic aldehyde having from 3 to 10 carbon atoms in the presence of a weakly basic exchange resin having polyamine functionality and being in the free base form, is disclosed herein. | ||||||
| 188 | Synthesis of 2-(perfluoroalkyl) ethanethiols | US141847 | 1988-01-11 | US4845300A | 1989-07-04 | Andre Lantz |
| The subject of the invention is a process for the preparation of 2-(perfluoroalkyl)ethanethiols R.sub.f CH.sub.2 CH.sub.2 SH, R.sub.f denoting a straight-chain or branched perfluoroalkyl radical containing from 2 to 20 carbon atoms. The proceses comprises reacting a 2-(perfluoroalkyl)ethyl iodide with thiourea and then decomposing the isothiouronium salt formed with an alkaline base, and is characterized in that it is carried out in a non-alcoholic inert solvent. | ||||||
| 189 | Process for preparing (hydrocarbylthio) aromatic amines | US26828 | 1987-03-17 | US4751330A | 1988-06-14 | Robert L. Davis |
| (Hydrocarbylthio)aromatic amines are prepared by reacting an aromatic amine, such as an aminobenzene, with a hydrocarbyl disulfide, such as an alkyl disulfide, in the presence of a metal or metal halide catalyst and iodine as a promoter. | ||||||
| 190 | Sulfurized compositions and lubricants containing them | US664465 | 1984-10-25 | US4584113A | 1986-04-22 | Reed H. Walsh |
| A sulfurized composition prepared by sulfurizing a mixture of at least one terpene and at least one other olefinic compound is described. More particularly, sulfurized compositions prepared by sulfurizing a mixture of pine oil and at least one other olefinic compound are described. Such sulfurized compositions are useful as lubricant additive compositions, and more particularly, as additive compositions in industrial and gear lubricants. The compositions when added to lubricants provide lubricants which exhibit improved antioxidant characteristics, nitrile seal compatibility and acceptable color characteristics. | ||||||
| 191 | Process for preparing alkaline earth metal mercaptides | US866738 | 1978-01-03 | US4177198A | 1979-12-04 | Joseph M. Bohen |
| A process for preparing alkaline earth metal mercaptides, useful as synergists for organotin stabilizers in halogen containing resins such as polyvinyl chloride, the process comprising preparing an alkaline earth metal alkoxide by reacting the metal oxide or hydroxide with an alcohol and then reacting the alkoxide with a mercaptan to provide the corresponding alkaline earth metal mercaptide, preferably while removing water from the reaction mixtures throughout the process. | ||||||
| 192 | TW108113541 | 2019-04-18 | TW201945334A | 2019-12-01 | BRISTOW JAMES TIMOTHY | |
| A process for preparing oxamyl is provided, the process comprising: (a) providing a solution of oxamyl in a solvent system comprising a lower alcohol or a mixture of a lower alcohol and water; and (b) precipitating oxamyl from the solution. | ||||||
| 193 | ZNP2 MODIFIED SEPARATOR TO IMPROVE THE ABSORPTION AND CONVERSION KINETIC OF POLYSULFIDES FOR METAL-SULPHUR BATTERIES | PCT/IN2023050297 | 2023-03-28 | WO2023187823A1 | 2023-10-05 | VILAS SHELKE MANJUSHA; YADAV POONAM; KRISHNA DAS ANOUSHKA |
| Described herein is a ZnP2 coated separator as a barrier to restrict the polysulfide shuttling. ZnP2 coated separator have surface anchoring group to bind and catalyze sulfide conversion. Further, the present invention provides a process for synthesizing the ZnP2 modified separator. Furthermore, the present invention provides energy device with said coated separator. | ||||||
| 194 | GRANULAR CATALYST FOR THE HYDROLYSIS OF AMINO NITRILES AND AMINO AMIDES TO AMINO ACIDS OR DERIVATIVES THEREOF | PCT/EP2023051918 | 2023-01-26 | WO2023144265A1 | 2023-08-03 | BILZ JÜRGEN; FISCHER ACHIM; GEIST LUCAS; HARTMANN MICHAEL; REUS CHRISTIAN; WILZ FRANK |
| The present invention relates to a granular catalyst for the hydrolysis of amino nitriles and/or amino amides to amino acids or derivatives thereof, a process for the preparation of this catalyst and a method for the preparation of an amino acid of derivative thereof comprising the step of contacting a solution or suspension comprising an amino nitrile and/or an amino amide with water in the presence of a catalyst according to the present invention or in the presence of a catalyst obtained by a process according to the present invention. | ||||||
| 195 | 一种4-五氟化硫苯酚类化合物及制备方法以及五氟化硫取代苯并吡喃类化合物的制备方法 | PCT/CN2016/086772 | 2016-06-22 | WO2017152539A1 | 2017-09-14 | 张艳梅; 泰勒•约翰•J.; 王贻灿; 何创; 关建通; 林勇杰; 托特雷拉•米琦•D. |
本发明提供了一种4-五氟化硫苯酚类化合物及制备方法以及五氟化硫取代苯并吡喃类化合物的制备方法，本发明以五氟化硫苯酚为原料经过多步合成多种取代基五氟化硫水杨醛，进而在此基础合成五氟化硫取代苯并吡喃类化合物。该方法简便，成本低，克服了目前五氟化硫苯酚类型少，无法满足合成多种五氟化硫取代苯并吡喃类化合物的缺点，具有广泛的工业应用前景。 |
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| 196 | MIXED DECYL MERCAPTANS COMPOSITIONS AND USE THEREOF AS CHAIN TRANSFER AGENTS | PCT/US2016/058822 | 2016-10-26 | WO2017116541A9 | 2017-07-06 | KREIDER, Jason; MATSON, Michael |
A chain transfer agent composition comprises at least one branched C10 mercaptan selected from 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, or combinations thereof. The chain transfer agent composition can be a component of an emulsion polymerization mixture and can be used in a process for emulsion polymerization for the production of polymers, for example, via free-radical polymerization. |
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| 197 | MIXED DECYL MERCAPTANS COMPOSITIONS AND USE THEREOF AS CHAIN TRANSFER AGENTS | PCT/US2016/058822 | 2016-10-26 | WO2017116541A1 | 2017-07-06 | KREIDER, Jason; MATSON, Michael |
A chain transfer agent composition comprises at least one branched C10 mercaptan selected from 5-methyl-1-mercapto-nonane, 3-propyl-1-mercapto-heptane, 4-ethyl-1-mercapto-octane, 2-butyl-1-mercapto-hexane, 5-methyl-2-mercapto-nonane, 3-propyl-2-mercapto-heptane, 4-ethyl-2-mercapto-octane, 5-methyl-5-mercapto-nonane, or combinations thereof. The chain transfer agent composition can be a component of an emulsion polymerization mixture and can be used in a process for emulsion polymerization for the production of polymers, for example, via free-radical polymerization. |
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| 198 | MANUFACTURE OF ORGANOPOLYSULFIDES AND SALTS THEREOF | PCT/US2016/029929 | 2016-04-29 | WO2016182759A1 | 2016-11-17 | FORTMAN, George C.; SMITH, Gary S. |
A method of producing an organopolysulfide or salt thereof is provided which includes a step of mixing an organomonosulfide or salt thereof and elemental sulfur, wherein the mixing is carried out at a temperature not greater than 95C and in the absence of any added liquid phase for a time effective to produce the organopolysulfide or salt thereof. The described method makes possible the preparation of organopolysulfides and organopolysulfide salts without the use of solvent or catalyst. |
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| 199 | HYDROTHIOLATION OF UNACTIVATED ALKENES | PCT/US2011/053571 | 2011-09-28 | WO2012047686A1 | 2012-04-12 | WU, Jimmy; SAVOLAINEN, Markku, A. |
The present invention is a method for promoting hydrothiolation of an unactivated alkenes with a thiol using gallium triflate. |
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| 200 | PROCESS FOR MAKING AN OVERBASED, SULFURIZED SALT OF AN ALKYLATED HYDROXY-AROMATIC COMPOUND | PCT/US2010056554 | 2010-11-12 | WO2011066115A3 | 2011-09-29 | SINQUIN GILLES P; BUCKLEY THOMAS FRANCIS III; CISSON CHARLES MICHAEL |
| An overbased, sulfurized salt of at least one alkylated hydroxyaromatic compound, wherein the alkyl substituent of the hydroxyaromatic compound is a residue of at least one isomerized olefin having from about 15 to about 99 wt. % branching is disclosed. The overbased, sulfurized salt of at least one alkylated hydroxyaromatic compound is produced by the process comprising: (a) alkylating at least one hydroxyaromatic compound with at least one isomerized olefin having from about 15 to about 99 wt. % branching obtained by isomerizing at least one normal alpha olefin having from about 10 to about 40 carbon atoms, to provide at least one alkylated hydroxyaromatic compound; (b) neutralizing and sulfurizing the alkylated hydroxyaromatic compound in any order to provide at least one neutralized, sulfurized alkylated hydroxyaromatic compound; and (c) overbasing the at least one neutralized, sulfurized alkylated hydroxyaromatic compound. | ||||||
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