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公开(公告)号：US11130725B2
公开(公告)日：2021-09-28
申请号：US17040287
申请日：2019-05-03
Applicant: Dow Technology Investments LLC
Inventor： Michael A. Brammer , Michael C. Becker , William N. Felsted, II
Abstract: The present invention relates to methods for slowing deactivation of a catalyst and/or slowing tetraphosphine ligand usage in a hydroformylation process. In one aspect, a method comprises (a) contacting an olefin with carbon monoxide, hydrogen and a catalyst, the catalyst comprising (A) a transition metal, (B) a tetraphosphine having the structure described herein, and, optionally, (C) a monophosphine having the structure described herein, the contacting conducted in one or more reaction zones and at hydroformylation conditions; and (b) adding additional monophosphine having the structure described herein to a reaction zone.
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公开(公告)号：US20170233322A1
公开(公告)日：2017-08-17
申请号：US15114191
申请日：2015-03-10
Applicant: Dow Technology Investments LLC
Inventor： Glenn A. Miller , Thomas C. Eisenschmid , Michael A. Brammer , Michael C. Becker , Rick B. Watson
CPC classification number: C07C45/80 , C07C45/50 , Y02P20/582 , C07C47/02
Abstract: A hydroformylation process wherein a water-soluble amine is contacted with the reaction fluid, liquid from the reactor is sent to an extraction zone, and a neutralized phosphorus acidic compound is at least partially removed from the extraction zone.
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公开(公告)号：US20190047930A1
公开(公告)日：2019-02-14
申请号：US16076734
申请日：2017-02-10
Applicant: Dow Technology Investments LLC
Inventor： Michael C. Becker , Michael A. Brammer , Jason F. Giles , Glenn A. Miller , George R. Phillips , Rick B. Watson , Stephane Wambergue , Martin Lucas Smidt
IPC: C07C29/141 , C07C41/01 , C07C45/50 , C10L1/182 , C10L1/185
Abstract: Embodiments of the present invention relate to processes for converting olefins to alcohols, ethers, or combinations thereof that are suitable for use as a gasoline additive. In one embodiment, the process comprises (a) receiving a feed stream, wherein the feed stream comprises one or more olefins having 2 to 5 carbon atoms in an amount of up to 80% by weight based on the weight of the feed stream; (b) hydroformylating the feed stream in the presence of a catalyst to convert at least 80% of the olefins from the feed stream to oxygenates; (c) separating a product stream from step (b) into an oxygenate stream and a stream comprising unreacted olefins, inerts, the catalyst, and the remaining oxygenates; and (d) treating the oxygenate stream to convert a plurality of the oxygenates into at least one of an alcohol, an ether, or combinations thereof having at least 3 carbon atoms, wherein at least 25 weight percent of the alcohols and ethers having at least 3 carbon atoms are branched based on the total weight of the alcohols and ethers having at least 3 carbon atoms, and wherein the alcohols, ethers, or combination thereof is suitable for use as a gasoline additive.
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公开(公告)号：US20210114961A1
公开(公告)日：2021-04-22
申请号：US17040287
申请日：2019-05-03
Applicant: Dow Technology Investments LLC
Inventor： Michael A. Brammer , Michael C. Becker , William N. Felsted, II
Abstract: The present invention relates to methods for slowing deactivation of a catalyst and/or slowing tetraphosphine ligand usage in a hydroformylation process. In one aspect, a method comprises (a) contacting an olefin with carbon monoxide, hydrogen and a catalyst, the catalyst comprising (A) a transition metal, (B) a tetraphosphine having the structure described herein, and, optionally, (C) a monophosphine having the structure described herein, the contacting conducted in one or more reaction zones and at hydroformylation conditions; and (b) adding additional monophosphine having the structure described herein to a reaction zone.
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公开(公告)号：US09688598B2
公开(公告)日：2017-06-27
申请号：US15032068
申请日：2014-12-09
Applicant: Dow Technology Investments LLC
Inventor： Thomas C. Eisenschmid , Morteza Mokhtarzadeh , Cloid R. Smith, III , Michael C. Becker , George R. Phillips , Michael A. Brammer , Glenn A. Miller , Rick B. Watson , Irvin B. Cox , Edward A. Lord , Martin Smidt
CPC classification number: C07C45/50 , B01J31/24 , B01J2231/321 , B01J2531/822 , C07C45/78 , C07C45/82 , Y02P20/582 , C07C47/02
Abstract: A multi-reaction train hydroformylation process wherein a common product-catalyst separation zone is employed.
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Patent Agency Ranking
公开(公告)号：US20220143590A1
公开(公告)日：2022-05-12
申请号：US17594916
申请日：2020-05-20
Applicant: Dow Technology Investments LLC
Inventor： Michael C. Becker , Thomas C. Eisenschmid , Glenn A. Miller
Abstract: Embodiments of the present invention relate to processes to prepare a spent catalyst fluid from a hydroformylation process for precious metal recovery. In one embodiment, a process comprises (a) removing a spent catalyst fluid from an active hydroformylation reaction system, wherein the spent catalyst fluid comprises the hydroformylation reaction catalyst and is substantially free of non-hydrolyzable triorganophosphorous compounds; and (b) adding a non-hydrolyzable triorganophosphorous compound to the spent catalyst fluid from step (a) prior to storing the fluid or prior to shipping for precious metal recovery.
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公开(公告)号：US10766839B2
公开(公告)日：2020-09-08
申请号：US16076734
申请日：2017-02-10
Applicant: Dow Technology Investments LLC
Inventor： Michael C. Becker , Michael A. Brammer , Jason F. Giles , Glenn A. Miller , George R. Phillips , Rick B. Watson , Stephane Wambergue , Martin Lucas Smidt
IPC: C07C29/141 , C07C41/01 , C07C45/50 , C10L1/182 , C10L1/185
Abstract: The present invention relate to processes for converting olefins to alcohols, ethers, or combinations thereof that are suitable for use as a gasoline additive. In one embodiment, the process comprises (a) receiving a feed stream, wherein the feed stream comprises one or more olefins having 2 to 5 carbon atoms in an amount of up to 80% by weight based on the weight of the feed stream; (b) hydroformylating the feed stream in the presence of a catalyst to convert at least 80% of the olefins from the feed stream to oxygenates; (c) separating a product stream from step (b) into an oxygenate stream and a stream comprising unreacted olefins, inerts, the catalyst, and the remaining oxygenates; and (d) treating the oxygenate stream to convert a plurality of the oxygenates into at least one of an alcohol, an ether, or combinations thereof is suitable for use as a gasoline additive.
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公开(公告)号：US10131608B2
公开(公告)日：2018-11-20
申请号：US15114191
申请日：2015-03-10
Applicant: Dow Technology Investments LLC
Inventor： Glenn A. Miller , Thomas C. Eisenschmid , Michael A. Brammer , Michael C. Becker , Rick B. Watson
Abstract: A hydroformylation process wherein a water-soluble amine is contacted with the reaction fluid, liquid from the reactor is sent to an extraction zone, and a neutralized phosphorus acidic compound is at least partially removed from the extraction zone.
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公开(公告)号：US09382180B2
公开(公告)日：2016-07-05
申请号：US14648468
申请日：2013-11-21
Applicant: Dow Technology Investments LLC
Inventor： Glenn A. Miller , Thomas C. Eisenschmid , Rick B. Watson , Michael A. Brammer , Michael C. Becker
CPC classification number: C07C45/50 , B01J31/185 , B01J2231/321 , B01J2531/822 , Y02P20/582 , C07C47/02
Abstract: A hydroformylation process that tolerates a high level of methanol in the feed.
Abstract translation: 加氢甲酰化过程，可承受饲料中高水平的甲醇。
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公开(公告)号：US20150307430A1
公开(公告)日：2015-10-29
申请号：US14648468
申请日：2013-11-21
Applicant: DOW TECHNOLOGY INVESTMENTS LLC
Inventor： Glenn A. Miller , Thomas C. Eisenschmid , Rick B. Watson , Michael A. Brammer , Michael C. Becker
CPC classification number: C07C45/50 , B01J31/185 , B01J2231/321 , B01J2531/822 , Y02P20/582 , C07C47/02
Abstract: A hydroformylation process that tolerates a high level of methanol in the feed.
Abstract translation: 加氢甲酰化过程，可承受饲料中高水平的甲醇。
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