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公开(公告)号:US20150299077A1
公开(公告)日:2015-10-22
申请号:US14385917
申请日:2013-05-29
Applicant: Dow Global Technologies LLC
Inventor: David G. Barton , Adam Chojecki , Paul R. Elowe , Beata A. Kilos
CPC classification number: C07C41/09 , B01J21/066 , B01J27/10 , B01J37/0201 , B01J37/031 , C09K5/00 , C07C43/275
Abstract: Provided is a process for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a dehydration catalyst. The dehydration catalyst is an oxide of a heavy rare earth element, wherein the heavy rare earth element is terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, or mixtures thereof.
Abstract translation: 提供了通过在脱水催化剂的存在下通过芳族醇化合物的脱水来制备二芳基醚化合物的方法。 脱水催化剂是重稀土元素的氧化物,其中重稀土元素是铽,镝,钬,铒,ium,镱,镥或其混合物。
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公开(公告)号:US20140306145A1
公开(公告)日:2014-10-16
申请号:US14359527
申请日:2012-11-20
Applicant: Dow Global Technologies LLC
Inventor: Paul R. Elowe , David G. Barton , Adam Chojecki , Joost Depicker
CPC classification number: C07C41/09 , C09K5/00 , C09K5/10 , C07C43/275
Abstract: Provided is a method for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a dehydration catalyst. The dehydration catalyst comprises an oxide of yttrium.
Abstract translation: 提供了通过在脱水催化剂存在下使芳族醇化合物脱水来制备二芳基醚化合物的方法。 脱水催化剂包含钇氧化物。
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公开(公告)号:US20250145546A1
公开(公告)日:2025-05-08
申请号:US19020337
申请日:2025-01-14
Applicant: Dow Global Technologies LLC
Inventor: Alexey Kirilin , Adam Chojecki , Joseph F. DeWilde , Glenn Pollefeyt , Davy L.S. Nieskens , Andrzej Malek
IPC: C07C1/04 , B01J21/06 , B01J23/06 , B01J23/08 , B01J23/10 , B01J29/85 , B01J35/61 , B01J35/63 , B01J37/02 , B01J37/04 , B01J37/08
Abstract: A method for preparing C2 to C5 paraffins including introducing a feed stream of hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor. Converting the feed stream into a product stream that includes C2 to C5 paraffins in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst including a microporous catalyst component; and a metal oxide catalyst component. The metal oxide catalyst component including a metal component present on a metal oxide support material. The metal oxide support material includes at least one oxide of a metal selected from Group 4 of the IUPAC periodic table of elements. The product stream has a C3/C2 carbon molar ratio greater than or equal to 4.0.
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公开(公告)号:US20240352341A1
公开(公告)日:2024-10-24
申请号:US18683043
申请日:2022-08-17
Applicant: Dow Global Technologies LLC
Inventor: Daniela Ferrari , Barry B. Fish , Kevin Blann , Glenn Pollefeyt , Cheng L. Chung , Manish Sharma , Alexey Kirilin , Adam Chojecki , Andrzej Malek
IPC: C10G27/04
CPC classification number: C10G27/04 , C10G2300/1081 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018
Abstract: A method for converting alkanes to olefins includes contacting a feed stream comprising alkanes with an oxidative dehydrogenation that does not comprise tellurium catalyst in a reaction zone and dehydrogenating the alkanes without a co-feed of oxygen to yield a product stream having olefins. The oxidative dehydrogenation catalyst has the formula: MovVwNbyAzOx, where v is 1.0, w is from 0.1 to 0.5, y is from 0.001 to 0.3, A is Bi, Sb, Pr, or mixtures thereof, z is from 0.01 to 0.3, and x charge-balances the structure. The oxidative dehydrogenation catalyst has a crystallographic structure with Pba2-32 space group, characterized by reflections determined with Cu-Kα X-ray diffraction (XRD) as follows.
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公开(公告)号:US20230256424A1
公开(公告)日:2023-08-17
申请号:US18003843
申请日:2021-06-18
Applicant: Dow Global Technologies LLC
Inventor: Alexey Kirilin , Dean M. Millar , Adam Chojecki , Joseph F. DeWilde , Glenn Pollefeyt , Davy L.S. Nieskens , Andrzej Malek
CPC classification number: B01J29/505 , B01J29/7015 , B01J35/0006 , C07C1/043 , C10G2/33 , C10G2/50 , C07C2521/06 , C07C2523/08 , C10G2300/70 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2400/20
Abstract: A process for preparing C2 to C3 hydrocarbons may include introducing a feed stream including hydrogen gas and a carbon-containing gas comprising carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor, and converting the feed stream into a product stream comprising C2 to C3 hydrocarbons in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst may include a metal oxide catalyst component and a microporous catalyst component comprising 8-MR pore openings and may be derived from a natural mineral, the product stream comprises a combined C2 and C3 selectivity greater than 40 carbon mol%.
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公开(公告)号:US20230052682A1
公开(公告)日:2023-02-16
申请号:US17788144
申请日:2020-12-02
Applicant: Dow Global Technologies LLC
Inventor: Glenn Pollefeyt , Davy L.S. Nieskens , Alexey Kirilin , Adam Chojecki , Joseph F. Dewilde , Barry B. Fish , Andrzej Malek
IPC: C07C1/04
Abstract: A process for preparing C2 to C4 hydrocarbons includes introducing a feed stream into a reaction zone of a reactor, the feed stream comprising hydrogen gas and carbon monoxide. An additional stream is introduced into the reaction zone of the reactor, the additional stream comprising carbon dioxide. A combined stream that includes the feed stream and the additional stream is converted into a product stream comprising C2 to C4 hydrocarbons in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst includes a mixed metal oxide catalyst component, and a microporous catalyst component. The process operates at a gas hourly space velocity in excess of 2500 hr-1 and effectively yields a net carbon dioxide selectivity of less than 5.0% and a productivity of C2-C4 hydrocarbons greater than 75 g hydrocarbons per kilogram of catalyst per hour.
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公开(公告)号:US09833774B2
公开(公告)日:2017-12-05
申请号:US15300139
申请日:2015-05-14
Applicant: Dow Global Technologies LLC
Inventor: Vera P. Santos Castro , Adam Chojecki , Garmt R. Meima , Adrianus Koeken , Matthijs Ruitenbeek , Thomas Davidian , Gascon Jorge , Michiel Makkee , Freek Kapteijn , Tim A. Wezendonk
CPC classification number: B01J23/78 , B01J27/22 , B01J31/1691 , B01J31/223 , B01J35/002 , B01J35/006 , B01J35/023 , B01J37/0201 , B01J37/0203 , B01J37/086 , B01J37/18 , B01J2231/648 , B01J2531/0216 , B01J2531/842 , C10G2/332 , C10G2300/70
Abstract: Preparation of a catalyst suitable for use in Fischer-Tropsch Synthesis reactions using a two step process in which the steps may be performed in either order. In step a), impregnate an iron carboxylate metal organic framework selected from a group consisting of iron-1,3,5-benzenetricarboxylate (Fe-(BTC), Basolite™ F-300 and/or MIL-100 (Fe)), iron-1,4 benzenedicarboxylate (MIL-101(Fe)), iron fumarate (MIL-88 A (Fe)), iron-1,4 benzenedicarboxylate (MIL-53 (Fe)), iron-1,4 benzenedicarboxylate (MIL-68 (Fe)) or iron azobenzenetetracarboxylate (MIL-127 (Fe)) with a solution of a promoter element selected from alkali metals and alkaline earth metals. In step b) thermally decompose the iron carboxylate metal organic framework under an inert gaseous atmosphere to yield a catalyst that is a porous carbon matrix having embedded therein a plurality of discrete aliquots of iron carbide. If desired, add a step intermediate between steps a) and b) or preceding step b) wherein the metal organic framework is impregnated with an oxygenated solvent solution of a polymerizable additional carbon source and the polymerizable additional carbon source is thereafter polymerized.
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公开(公告)号:US09452420B2
公开(公告)日:2016-09-27
申请号:US14417404
申请日:2013-08-21
Applicant: Dow Global Technologies LLC
Inventor: David G. Barton , Adam Chojecki , Paul R. Elowe , Beata A. Kilos
IPC: C07C41/09 , C09K5/00 , B01J27/10 , B01J23/10 , C01B11/00 , C01F17/00 , B01J37/03 , B01J37/08 , B01J37/02
CPC classification number: B01J27/10 , B01J23/10 , B01J37/0201 , B01J37/031 , B01J37/08 , C01B11/00 , C01F17/0043 , C07C41/09 , C09K5/00 , C07C43/275
Abstract: Provided is a process for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a dehydration catalyst. The dehydration catalyst is an oxide of a medium rare earth element, wherein the medium rare earth element is samarium, europium, gadolinium, or mixtures thereof.
Abstract translation: 提供了通过在脱水催化剂的存在下通过芳族醇化合物的脱水来制备二芳基醚化合物的方法。 脱水催化剂是中等稀土元素的氧化物,其中中等稀土元素是钐,铕,钆或其混合物。
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公开(公告)号:US20150190790A1
公开(公告)日:2015-07-09
申请号:US14417404
申请日:2013-08-21
Applicant: Dow Global Technologies LLC
Inventor: David G. Barton , Adam Chojecki , Paul R. Elowe , Beata A. Kilos
CPC classification number: B01J27/10 , B01J23/10 , B01J37/0201 , B01J37/031 , B01J37/08 , C01B11/00 , C01F17/0043 , C07C41/09 , C09K5/00 , C07C43/275
Abstract: Provided is a process for preparing a diaryl ether compound through the dehydration of an aromatic alcohol compound in the presence of a dehydration catalyst. The dehydration catalyst is an oxide of a medium rare earth element, wherein the medium rare earth element is samarium, europium, gadolinium, or mixtures thereof.
Abstract translation: 提供了通过在脱水催化剂的存在下通过芳族醇化合物的脱水来制备二芳基醚化合物的方法。 脱水催化剂是中等稀土元素的氧化物,其中中等稀土元素是钐,铕,钆或其混合物。
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公开(公告)号:US12030036B2
公开(公告)日:2024-07-09
申请号:US17417955
申请日:2019-12-16
Applicant: Dow Global Technologies LLC
Inventor: Alexey Kirilin , Adam Chojecki , Glenn Pollefeyt , Davy L. S. Nieskens , Kyle C. Andrews , Vera P. Santos Castro , Joseph F. DeWilde , David F. Yancey , Andrzej Malek
CPC classification number: B01J23/08 , B01J21/063 , B01J21/066 , B01J23/62 , B01J23/825 , B01J29/85 , B01J35/19 , C10G2/33 , C10G2/333 , C10G2/334
Abstract: A method for preparing C2 to C5 paraffins includes introducing a feed stream including hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor. Converting the feed stream into a product stream including C2 to C5 paraffins in the presence of a hybrid catalyst. The hybrid catalyst includes a microporous catalyst component; and a metal oxide catalyst component selected from (A) a bulk material consisting of gallium oxide, (B) gallium oxide present on a titanium dioxide support material, and (C) a mixture of gallium oxide and at least one promoter present on a support material selected from Group 4 of the IUPAC periodic table of elements.
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