CAS: 1109-96-2; (R)-Quinolin-4-Yl((1S,2S,4S,5R)-5-Vinylquinuclidin-2-yl)Methanol 2-(1,2-Dihydroacenaphthylen-3-yl)Propanoate

专利信息

专利号:US-2024101506-A1
优先权日:2021-01-26
标 题 :Continuous process for the synthesis of dimethyl carbonate over a cerium-based catalyst formulation
发明人：SRINIVAS DARBHA; BOKADE VIJAY VASANT; NIPHADKAR PRASHANT SURESH; PULIKKEEL UNNIKRISHNAN; PARMAR SNEHALKUMAR; AMTE VINAY; SENGUPTA SURAJIT; DAS ASIT KUMAR
权利人:COUNCIL SCIENT IND RES
摘要:The present invention discloses a continuous process for the synthesis of dimethyl carbonate from methanol and carbon dioxide over a ceria-based mixed metal oxide-silica catalyst formulation in the presence of a dehydrating or water trapping compound (2-Cyanopyridine).

专利号:US-6090965-A
优先权日:1998-04-02
标题:Removal of dissolved silicates from alcohol-silicon direct synthesis solvents
发明人：LEWIS KENRICK MARTIN; YU HUA; ENG REGINA N
权利人:OSI SPECIALTIES INC
摘要:Dissolved silanes, silicones and silicates from solvents used in the slurry phase Direct Synthesis of alkoxysilanes are removed by adding a carboxylic acid such as formic acid to generate filterable precipitates and reusable solvent. The solvents are thereby remediated and made suitable for reuse in Direct Synthesis processes. Foaming is reduced with the remediated solvent and silicon conversion rates are higher. The precipitates are easily filtered and retain negligible quantities of solvent.

专利号:WO-2025078932-A1
优先权日:2023-10-09
标题 :A process for selective dimethyl carbonate (dmc) synthesis and a system thereof
发明人：PULIKKEEL UNNIKRISHNAN; ROUTRAY KAMALAKANTA; CHINTHALA PRAVEEN KUMAR; DAS ASIT KUMAR
权利人:RELIANCE INDUSTRIES LTD
摘要:The present disclosure provides a process for the selective synthesis of dimethyl carbonate 0 (DMC). More particularly, the present disclosure provides a process for inhibiting catalyst deactivation in a process for selective DMC synthesis. The process is particularly characterized by conducting the process in the presence of a small quantity of air. Further provided herein is a system for facilitating the said process. The process and the system (Figure 1) of the present disclosure prolong the life of the catalyst by virtue of introduction of air into the reactor.

专利号:US-5756419-A
优先权日:1995-09-25
标题 :Process for the conversion of synthesis gas in the presence of a catalyst comprising cobalt and additional elements
发明人：CHAUMETTE PATRICK; DIDILLON BLAISE
权利人:INST FRANCAIS DU PETROLE
摘要:The invention concerns the preparation of a catalyst comprising a support containing at least one oxide of the element Si, Al, Ti, Zr, Sn, Zn, Mg or Ln (where Ln is a rare earth), cobalt, at least one element A selected from the group formed by ruthenium, platinum, palladium and uranium, and at least one element B selected from the group formed by molybdenum and tungsten, characterized in that it comprises at least the following successive steps: n (1) formation of a precursor comprising at least cobalt and at least a portion of the support; n (2) at least partial reduction of the precursor in the presence of at least one reducing compound; and n (3) deposition of any part of compound present in the catalyst and not present in the precursor on the reduced precursor. n The invention also concerns the use of the catalyst in a process for the synthesis of C 5 + hydrocarbons from synthesis gas.

专利号:US-6254845-B1
优先权日:1997-02-25
标题:Synthesis method of spherical hollow aluminosilicate cluster
发明人：OHASHI FUMIHIKO; WADA SHIN-ICHIRO; KAKUTO YASUKO
权利人:AGENCY IND SCIENCE TECHN
摘要:The present invention provides a method for the homogenous and highly efficient synthesis of an aluminosilicate material that can be used for adsorbents, deodorants, catalyst carriers, humidity adjustors, and the like, and relates to a method for manufacturing spherical hollow silicate clusters, comprising steps of mixing a solution of a silicon compound and a solution of an aluminum compound or transition metal compound, each with a solution concentration of 10-1000 mmol, rapidly or simultaneously at a rate of 1-10,000 mL/min, removing a salt formed as a by-product, and then subjecting the mixture to hydrothermal synthesis to yield the silicate clusters.

专利号:WO-2025078933-A1
优先权日:2023-10-09
标题 :A process for selective dimethyl carbonate (dmc) synthesis and a system thereof
发明人：PULIKKEEL UNNIKRISHNAN; ROUTRAY KAMALAKANTA; CHINTHALA PRAVEEN KUMAR; DAS ASIT KUMAR; MANDAL SUKUMAR
权利人:RELIANCE INDUSTRIES LTD
摘要:The present disclosure provides a process for the continuous and selective synthesis of Dimethyl carbonate (DMC) addressing issues such as choking, reagent consumption and other downstream issues. The process of the present disclosure is characterized by integration of 2 reactions, one for the conversation of alcohol and carbon dioxide to DMC in the presence of a nitrile based dehydrating agent and the second for the re-generation of the nitrile based dehydrating agent in the presence of a suitable solvent. Further provided herein is a system (Figure 1) for facilitating the said process. The process is characterized by prolonged catalyst activity, efficient regeneration of reactants, low energy requirements and simple regeneration procedures.