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公开(公告)号：US20150344756A1
公开(公告)日：2015-12-03
申请号：US14822957
申请日：2015-08-11
Applicant: Chevron Phillips Chemical Company LP
Inventor： Michael S. Matson , Colin Cameron , Alastair Robert Marrion , Anthony Colin Wright , Mitchell D. Refvik , Eric J. Netemeyer
IPC: C09J201/00
CPC classification number: C09J175/04 , C07C319/04 , C07C321/06 , C07C321/10 , C07C321/22 , C07C2601/14 , C07C2601/18 , C07C2601/20 , C09J11/06 , C09J163/00 , C09J201/00
Abstract: The present invention discloses processes for forming polythiol compositions from olefinic hydrocarbons such as cyclooctadiene, cyclododecatriene, and trivinylcyclohexane. The polythiol compositions produced from these processes, including the sulfur-containing compounds of these compositions, also are described.
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公开(公告)号：US20240254065A1
公开(公告)日：2024-08-01
申请号：US18419693
申请日：2024-01-23
Applicant: Chevron Phillips Chemical Company LP
Inventor： Qing Yang , Sierra N. Hinkle , Mitchell D. Refvik , Graham R. Lief , Ryan N. Rose
IPC: C07C17/23
CPC classification number: C07C17/23
Abstract: Alkenyl halides, such as an alkenyl bromide or an alkenyl chloride, are produced by a process that includes a step of forming a reaction mixture containing an alkyl dibromide or a chlorobromoalkane and an allylmagnesium bromide and/or an allylmagnesium chloride, and then producing the alkenyl halide in the reaction mixture.
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13.发明公开公开(公告)号：US20230321634A1
公开(公告)日：2023-10-12
申请号：US18295302
申请日：2023-04-04
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Mitchell D. Refvik , Jeremy M. Praetorius , Kathy S. Clear , Jared L. Barr , Carlos A. Cruz , Masud M. Monwar
CPC classification number: B01J23/26 , C07C45/28 , C07C29/48 , B01J21/08 , C07D307/33 , C08G63/08 , C08F10/02
Abstract: A hydrocarbon compound and carbon monoxide are reacted in the presence of either a supported chromium (VI) catalyst or a supported chromium (II) catalyst, optionally with UV-visible light irradiation and/or exposure to an oxidizing atmosphere, followed by removing a reaction product containing an alcohol compound and/or a carbonyl compound from the respective chromium catalyst. Often, the reaction product contains one or more ketone and/or aldehyde compounds.
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公开(公告)号：US11583840B2
公开(公告)日：2023-02-21
申请号：US17747208
申请日：2022-05-18
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Kathy S. Clear , Jeremy M. Praetorius , Eric D. Schwerdtfeger , Mitchell D. Refvik , Mark L. Hlavinka
IPC: C01B15/029 , B01J31/02 , B01J31/34 , B01J37/02 , B01J35/10 , B01J21/08 , B01J21/12 , B01J21/06 , B01J31/04
Abstract: A method comprising a) contacting a solvent, a carboxylic acid, and a peroxide-containing compound to form an acidic mixture wherein a weight ratio of solvent to carboxylic acid in the acidic mixture is from about 1:1 to about 100:1; b) contacting a titanium-containing compound and the acidic mixture to form a solubilized titanium mixture wherein an equivalent molar ratio of titanium-containing compound to carboxylic acid in the solubilized titanium mixture is from about 1:1 to about 1:4 and an equivalent molar ratio of titanium-containing compound to peroxide-containing compound in the solubilized titanium mixture is from about 1:1 to about 1:20; and c) contacting a chromium-silica support comprising from about 0.1 wt. % to about 20 wt. % water and the solubilized titanium mixture to form an addition product and drying the addition product by heating to a temperature in a range of from about 50° C. to about 150° C. and maintaining the temperature in the range of from about 50° C. to about 150° C. for a time period of from about 30 minutes to about 6 hours to form a pre-catalyst.
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公开(公告)号：US20210114009A1
公开(公告)日：2021-04-22
申请号：US17135401
申请日：2020-12-28
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Kathy S. Clear , Jeremy M. Praetorius , Eric D. Schwerdtfeger , Mitchell D. Refvik , Mark L. Hlavinka
Abstract: A method comprising a) contacting a solvent, a carboxylic acid, and a peroxide-containing compound to form an acidic mixture wherein a weight ratio of solvent to carboxylic acid in the acidic mixture is from about 1:1 to about 100:1; b) contacting a titanium-containing compound and the acidic mixture to form a solubilized titanium mixture wherein an equivalent molar ratio of titanium-containing compound to carboxylic acid in the solubilized titanium mixture is from about 1:1 to about 1:4 and an equivalent molar ratio of titanium-containing compound to peroxide-containing compound in the solubilized titanium mixture is from about 1:1 to about 1:20; and c) contacting a chromium-silica support comprising from about 0.1 wt. % to about 20 wt. % water and the solubilized titanium mixture to form an addition product and drying the addition product by heating to a temperature in a range of from about 50° C. to about 150° C. and maintaining the temperature in the range of from about 50° C. to about 150° C. for a time period of from about 30 minutes to about 6 hours to form a pre-catalyst.
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Patent Agency Ranking
公开(公告)号：US20200114343A1
公开(公告)日：2020-04-16
申请号：US16711304
申请日：2019-12-11
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Kathy S. Clear , Jeremy M. Praetorius , Eric D. Schwerdtfeger , Mitchell D. Refvik , Mark L. Hlavinka
Abstract: A pre-catalyst composition comprising a) a silica support comprising silica wherein an amount of silica ranges from about 70 wt. % to about 95 wt. % based upon a total weight of the silica support, b) a chromium-containing compound wherein an amount of chromium ranges from about 0.1 wt. % to about 5 wt. % based upon the amount of silica, c) a titanium-containing compound wherein an amount of titanium ranges from about 0.1 wt. % to about 20 wt. % based upon the amount of silica, d) a carboxylic acid wherein an equivalent molar ratio of titanium-containing compound to carboxylic acid ranges from about 1:1 to about 1:10, and e) a nitrogen-containing compound with a molecular formula containing at least one nitrogen atom wherein an equivalent molar ratio of titanium-containing compound to nitrogen-containing compound ranges from about 1:0.5 to about 1:10.
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公开(公告)号：US10273204B2
公开(公告)日：2019-04-30
申请号：US15241562
申请日：2016-08-19
Applicant: Chevron Phillips Chemical Company LP
Inventor： Reza Khankal , Henry Hwu , Daniel M. Hasenberg , Christina M. Barry , Mitchell D. Refvik , Michael S. Hankinson
IPC: C07C319/06 , B01J8/02
Abstract: Disclosed herein are systems and processes involving the catalyzed cleavage reaction of dimethyl sulfide to methyl mercaptan. The catalyzed cleavage reaction can be a standalone system or process, or can be integrated with a methyl mercaptan production plant.
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公开(公告)号：US20240368313A1
公开(公告)日：2024-11-07
申请号：US18313080
申请日：2023-05-05
Applicant: Chevron Phillips Chemical Company LP
Inventor： Qing Yang , Joel A. Mutchler , Eric J. Netemeyer , Mitchell D. Refvik , Carlton E. Ash
IPC: C08F2/01
Abstract: In processes and systems having a loop slurry polymerization reactor, a sample separator can be operated at low pressure conditions that provide better separation of liquids from a sample of the reactor effluent, so that measurement of the composition of the vapor phase recovered from the sample separator can more accurately reflect the composition of the liquid in the loop slurry polymerization reactor compared to the composition of the vapor phase recovered from the product separator.
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19.发明公开公开(公告)号：US20240286122A1
公开(公告)日：2024-08-29
申请号：US18660297
申请日：2024-05-10
Inventor： Mark Scott , Evan Merk , Carlos A. Cruz , Mitchell D. Refvik , Max P. McDaniel
CPC classification number: B01J37/0045 , B01J35/40 , B01J35/61
Abstract: Methods for modifying a catalyst system component are disclosed in which a feed mixture containing a fluid and from 1 to 15 wt. % of a catalyst system component is introduced into an inlet of a hydrocyclone, an overflow stream containing from 0.1 to 5 wt. % solids and an underflow stream containing from 10 to 40 wt. % solids are discharged from the hydrocyclone, and the underflow stream is spray dried to form a modified catalyst component. Often, from 4 to 20 wt. % of the catalyst system component in the feed mixture has a particle size of less than or equal to 20 μm, or less than or equal to 10 μm.
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公开(公告)号：US20220280925A1
公开(公告)日：2022-09-08
申请号：US17747208
申请日：2022-05-18
Applicant: Chevron Phillips Chemical Company LP
Inventor： Max P. McDaniel , Kathy S. Clear , Jeremy M. Praetorius , Eric D. Schwerdtfeger , Mitchell D. Refvik , Mark L. Hlavinka
Abstract: A method comprising a) contacting a solvent, a carboxylic acid, and a peroxide-containing compound to form an acidic mixture wherein a weight ratio of solvent to carboxylic acid in the acidic mixture is from about 1:1 to about 100:1; b) contacting a titanium-containing compound and the acidic mixture to form a solubilized titanium mixture wherein an equivalent molar ratio of titanium-containing compound to carboxylic acid in the solubilized titanium mixture is from about 1:1 to about 1:4 and an equivalent molar ratio of titanium-containing compound to peroxide-containing compound in the solubilized titanium mixture is from about 1:1 to about 1:20; and c) contacting a chromium-silica support comprising from about 0.1 wt. % to about 20 wt. % water and the solubilized titanium mixture to form an addition product and drying the addition product by heating to a temperature in a range of from about 50° C. to about 150° C. and maintaining the temperature in the range of from about 50° C. to about 150° C. for a time period of from about 30 minutes to about 6 hours to form a pre-catalyst.
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