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公开(公告)号：US20170320049A1
公开(公告)日：2017-11-09
申请号：US15533016
申请日：2015-12-03
Inventor： Garo Garbis VAPORCIYAN , Kunquan YU
IPC: B01J37/00 , C08G64/06 , C07C68/06 , B01J37/08 , B01J35/00 , B01J21/08 , B01J37/02 , C08G64/30 , B01J31/02
CPC classification number: B01J37/0018 , B01J21/063 , B01J21/08 , B01J31/0212 , B01J35/0006 , B01J37/0203 , B01J37/0207 , B01J37/0236 , B01J37/08 , B01J2231/49 , B01J2531/004 , C07C68/06 , C08G64/06 , C08G64/307 , C07C69/96
Abstract: The invention relates to a process for drying a catalyst carrier or drying a catalyst comprising a carrier on which a metal is supported, wherein the carrier or catalyst is contacted with a drying agent which comprises an organic carbonate. Further, the invention relates to a process for preparing a catalyst which comprises a carrier on which a metal is supported, said process comprising drying the carrier by contacting the carrier with a drying agent which comprises an organic carbonate resulting in a dried carrier; and impregnating the dried carrier with a solution wherein a compound containing the metal is dissolved in a solvent which is an organic carbonate or an alcohol. Still further, the invention relates to a process for preparing an aromatic carbonate, such as a diaryl carbonate, using the catalyst thus prepared or dried; and to a process for making a polycarbonate from the diaryl carbonate thus prepared.
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公开(公告)号：US20180354887A1
公开(公告)日：2018-12-13
申请号：US15778944
申请日：2016-11-24
Applicant: SHELL OIL COMPANY
Inventor： Kunquan YU , Garo Garbis VAPORCIYAN
CPC classification number: C07C68/065 , C07C68/08 , C07C69/96 , C07C2521/06 , Y02P20/127
Abstract: A process for preparing a diaryl carbonate from a dialkyl carbonate and an aryl alcohol is disclosed. The process takes place in apparatus comprising at least two distillation columns, and at least one of the distillation columns is operated at subatmospheric pressure which is achieved using vacuum equipment.
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公开(公告)号：US20180371163A1
公开(公告)日：2018-12-27
申请号：US16064401
申请日：2016-12-20
Applicant: SHELL OIL COMPANY
Inventor： Garo Garbis VAPORCIYAN , Kunquan YU
IPC: C08G64/30 , C08K5/07 , C07C68/06 , B01J27/232 , B01J23/04
Abstract: A process for producing an oligomer comprising contacting a alkylaryl carbonate and a dihydroxy compound in a reaction zone in the presence of an oligomerization catalyst under oligomerization conditions to form the oligomer wherein the molar ratio of dihydroxy compound to alkylaryl carbonate in the reaction zone is at least 2:1.
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公开(公告)号：US20190010281A1
公开(公告)日：2019-01-10
申请号：US16064389
申请日：2016-12-20
Applicant: SHELL OIL COMPANY
Inventor： Garo Garbis VAPORCIYAN , Kunquan YU
IPC: C08G64/30
Abstract: A process for producing an oligomer comprising contacting a dialkyl carbonate and a dihydroxy compound in a reaction zone in the presence of an oligomerization catalyst under oligomerization conditions to form the oligomer wherein the molar ratio of dihydroxy compound to dialkyl carbonate in the reaction zone is at least 2:1.
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Patent Agency Ranking
5.发明申请公开(公告)号：US20170369415A1
公开(公告)日：2017-12-28
申请号：US15543272
申请日：2016-01-14
Applicant: SHELL OIL COMPANY
Inventor： Garo Garbis VAPORCIYAN , Kunquan YU
CPC classification number: C07C68/06 , B01J31/0202 , B01J31/0212 , B01J31/0214 , B01J31/2226 , B01J2231/49 , B01J2531/46 , B01J2531/48 , C08G64/06 , C08G64/307 , C07C69/96
Abstract: The invention relates to a process for preparing an aromatic carbonate, comprising reacting a dialkyl carbonate or an alkyl aryl carbonate with an aryl alcohol or an alkyl aryl carbonate, resulting in an aromatic carbonate which is an alkyl aryl carbonate or a diaryl carbonate, wherein a composition comprising a titanium or zirconium alkoxide or aryloxide, wherein the alkoxy group in the titanium or zirconium alkoxide is a group of formula R-0˜ wherein R is an alkyl group having 1 to 4 carbon atoms and the aryloxy group in the titanium or zirconium aryloxide is a group of formula Ar-0˜ wherein Ar is an aryl group having 6 to 12 carbon atoms, and wherein the composition additionally comprises 0.1 to 50 wt. % of an alcohol, based on the total weight of the composition, is mixed with an alcohol or an organic carbonate, and the mixture thus obtained is contacted with said dialkyl carbonate or alkyl aryl carbonate and aryl alcohol or alkyl aryl carbonate to catalyze the preparation of the aromatic carbonate. Further, the invention relates to a process for making a polycarbonate from the diaryl carbonate thus prepared.
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公开(公告)号：US20170342209A1
公开(公告)日：2017-11-30
申请号：US15538668
申请日：2015-12-21
Applicant: SHELL OIL COMPANY
Inventor： Garo Garbis VAPORCIYAN , Kunquan YU
Abstract: The invention relates to a composition comprising a titanium or zirconium alkoxide or aryloxide, wherein the alkoxy group in the titanium or zirconium alkoxide is a group of formula R-0− wherein R is an alkyl group having 1 to 4 carbon atoms and the aryloxy group in the titanium or zirconium aryloxide is a group of formula Ar-0− wherein Ar is an aryl group having 6 to 12 carbon atoms, and wherein the composition additionally comprises 0.1 to 50 wt. % of an organic carbonate, based on the total weight of the composition. Further, the invention relates to a process for preparing such composition, comprising blending such titanium or zirconium alkoxide or aryloxide with an organic carbonate in such amounts that the resulting composition comprises 0.1 to 50 wt. % of the organic carbonate, based on the total weight of the composition. Still further, the invention relates to a process for preparing an aromatic carbonate, such as a diaryl carbonate, using said composition comprising a titanium or zirconium alkoxide or aryloxide; and to a process for making a polycarbonate from the diaryl carbonate thus prepared.
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公开(公告)号：US20210114014A1
公开(公告)日：2021-04-22
申请号：US17071677
申请日：2020-10-15
Applicant: SHELL OIL COMPANY
Inventor： Alexei Grigorievich GABRIELOV , Kunquan YU
IPC: B01J37/02 , B01J21/04 , B01J23/755 , B01J23/883 , C10G45/08 , B01J35/02 , B01J35/10 , B01J23/882
Abstract: A highly active hydroprocessing catalyst that comprises a doped support impregnated with at lease one hydrogenation metal component and filled with an organic additive blend. The catalyst is made by providing a doped support particle followed by impregnating the doped support particle with a metal impregnation solution to provide a metal-impregnated doped support particle. The metal-impregnated doped support particle is dried but not calcined and impregnated with an organic additive blend component.
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公开(公告)号：US20180371164A1
公开(公告)日：2018-12-27
申请号：US16064393
申请日：2016-12-20
Applicant: SHELL OIL COMPANY
Inventor： Garo Garbis VAPORCIYAN , Kunquan YU
Abstract: A process for producing polycarbonate comprising contacting a dihydroxy capped carbonate and a diaryl carbonate in a reaction zone in the presence of a polymerization catalyst under polymerization conditions to produce polycarbonate.
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公开(公告)号：US20180371162A1
公开(公告)日：2018-12-27
申请号：US16064400
申请日：2016-12-20
Applicant: SHELL OIL COMPANY
Inventor： Garo Garbis VAPORCIYAN , Kunquan YU
Abstract: A process for producing polycarbonate comprising: a) contacting a dialkyl carbonate with a dihydroxy compound in an oligomerization zone in the presence of an oligomerization catalyst under oligomerization conditions to form a first intermediate; and b) contacting the first intermediate with a diaryl carbonate in a polymerization zone in the presence of a polymerization catalyst under polymerization conditions to produce the polycarbonate wherein the molar ratio of dihydroxy compound to dialkyl carbonate in the oligomerization zone is at least 2:1.
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