公开(公告)号：US3031496A

公开(公告)日：1962-04-24

申请号：US81280359

申请日：1959-05-13

Applicant: CHEMICAL CONSTRUCTION CORP

Inventor： ABE WARSHAW

IPC: B01J27/06 ,  C07C67/04 ,  C07C69/15

CPC classification number: B01J27/06 ,  C07C67/04 ,  C07C69/01 ,  C07C69/15

公开(公告)号：US12209322B2

公开(公告)日：2025-01-28

申请号：US18238462

申请日：2023-08-26

Applicant: Dioxycle

Inventor： Ruperto G Mariano ,  Joshua A. Rabinowitz ,  Sarah Lamaison ,  David Wakerley

IPC: C25B3/25 ,  C01B7/01 ,  C07C17/02 ,  C07C17/156 ,  C07C17/25 ,  C07C19/045 ,  C07C21/06 ,  C07C43/115 ,  C07C69/15 ,  C25B1/02 ,  C25B1/04 ,  C25B1/34 ,  C25B3/03 ,  C25B3/07 ,  C25B3/11 ,  C25B3/26 ,  C25B15/02 ,  C25B15/08

Abstract: Integrations of carbon monoxide electrolyzers and chlor-alkali electrolyzers are disclosed herein. The disclosed integrations include novel process chains for the valorization of oxocarbons into hydrochloric acid, vinyl chloride, vinyl acetate, ethylene oxide, and other useful chemicals. The disclosed integrations further include novel ways to operate the electrolyzers in tandem to increase the efficiency of both reactors. This disclosure also includes novel ways to balance the operation of both electrolyzers to assure they are operating at an optimal level to take advantage of the benefits of the disclosed integrations.

公开(公告)号：US20230257491A1

公开(公告)日：2023-08-17

申请号：US18003775

申请日：2021-06-30

Applicant: KURARAY CO., LTD.

Inventor： Yasutaka Inubushi ,  Keishi Hachiya ,  Masaki Kato ,  Yoshikazu Yamasaki ,  Makoto Okamoto ,  Kazuyuki Somemiya ,  Takafumi Izawa

IPC: C08F16/06 ,  C07C69/15 ,  C08F18/08 ,  C08F8/12

CPC classification number: C08F16/06 ,  C07C69/15 ,  C08F18/08 ,  C08F8/12

Abstract: [Problem to be solved] To provide a traceable vinyl acetate, a polymer containing the vinyl acetate, and a vinyl alcohol polymer which is a saponified product of the polymer.
[Solution] Vinyl acetate having a ratio of carbon-14 to total carbon of 1.0×10−4 or more, a vinyl acetate polymer containing the vinyl acetate as a monomer unit and a vinyl alcohol polymer obtained by saponifying the vinyl acetate polymer.

公开(公告)号：US10947178B2

公开(公告)日：2021-03-16

申请号：US16760306

申请日：2017-11-21

Applicant: WACKER CHEMIE AG

Inventor： Willibald Dafinger ,  Brigitte Patsch ,  Guenther Rudolf

IPC: C07C67/05 ,  C07C69/15 ,  C07C67/055

Abstract: Fouling of the acetic acid saturator by recycle gas in the continuous gas phase process for manufacture of vinyl acetate is reduced by adding an N-oxyl fouling inhibitor to the saturator and/or at one or more other addition sites in the process, in amounts such that the concentration of N-oxyl compound which accumulates in the saturator bottoms is from 10 to 100 ppm. The amount of N-oxyl compound in the saturator is preferably from 10-50 ppm. The reduction in fouling is evidenced by lessening the lowering of the heat transfer coefficient of the saturator over time.

公开(公告)号：US10780424B2

公开(公告)日：2020-09-22

申请号：US15814042

申请日：2017-11-15

Applicant: LyondellBasell Acetyls, LLC

Inventor： Mure Te ,  Daniel F. White

IPC: B01J23/58 ,  B01J23/66 ,  B01J37/03 ,  B01J37/02 ,  B01J35/10 ,  B01J23/52 ,  B01J31/04 ,  B01J21/04 ,  B01J35/00 ,  B01J35/02 ,  B01J37/06 ,  B01J37/08 ,  B01J37/18 ,  C07C67/055 ,  C07C69/15

Abstract: Disclosed is a supported catalyst for the preparation of vinyl acetate monomer, a process for preparing the supported catalyst in tablet or pellet form, and a catalytic process for the manufacturing vinyl acetate using the supported catalyst. Specifically, it is shown that catalyst performance shows a strong dependence on the crush strength of the tableted or pelletized alumina support used in the process to make the catalyst, and that the crush strength of the catalyst is closely related to the porosity of the support. Catalyst activity and selectivity can be enhanced by tailoring the crush strength of the support.

公开(公告)号：US06913734B2

公开(公告)日：2005-07-05

申请号：US09877227

申请日：2001-06-11

Applicant: Stanley John Becker ,  Timothy Crispin Bristow ,  Robert William Clarke ,  Michele Fiorentino ,  David Newton ,  Ian All Beattie Reid ,  Bruce Leo Williams

Inventor： Stanley John Becker ,  Timothy Crispin Bristow ,  Robert William Clarke ,  Michele Fiorentino ,  David Newton ,  Ian All Beattie Reid ,  Bruce Leo Williams

IPC: B01J8/24 ,  B01J8/18 ,  B01J8/22 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  C07C53/08 ,  C07C67/05 ,  C07C67/055 ,  C07C69/12 ,  C07C69/15 ,  C07C253/24 ,  C07C253/26 ,  C07C255/08 ,  B01J8/08

CPC classification number: C07C253/26 ,  B01J8/1818 ,  B01J8/22 ,  B01J2208/00115 ,  B01J2208/00884 ,  B01J2219/00263 ,  C07C51/215 ,  C07C51/252 ,  C07C253/24 ,  Y02P20/582 ,  C07C57/145 ,  C07C53/08 ,  C07C255/08

Abstract: A process and apparatus for contacting (a) at least one gaseous reactant and (b) at least one liquid selected from the group consisting of reactants, coolants and mixtures thereof in the presence of a fluidized bed of catalyst, in which the liquid is introduced into the reactor through at least one inlet located within the fluidization zone and the gaseous reactant is introduced into the reactor through at least one inlet located within the fluidization zone adjacent the support means.

Abstract translation: 一种用于使（a）至少一种气体反应物和（b）在催化剂流化床存在下从反应物，冷却剂及其混合物中选择的至少一种液体接触的方法和装置，其中引入液体 通过位于流化区内的至少一个入口进入反应器，并且通过位于邻近支撑装置的流化区内的至少一个入口将气态反应物引入反应器。

公开(公告)号：US6074979A

公开(公告)日：2000-06-13

申请号：US83008

申请日：1998-05-21

Applicant: Alfred Hagemeyer ,  Uwe Dingerdissen ,  Hans Millauer ,  Andreas Manz ,  Klaus Kuhlein

Inventor： Alfred Hagemeyer ,  Uwe Dingerdissen ,  Hans Millauer ,  Andreas Manz ,  Klaus Kuhlein

IPC: B01J31/28 ,  B01J13/02 ,  B01J35/00 ,  C07B61/00 ,  C07C69/15 ,  C07C229/00 ,  B01J31/00 ,  B01J23/40 ,  B01J23/44 ,  B01J23/58

CPC classification number: B01J13/02 ,  B01J35/0013

Abstract: Polybetaine-stabilized, palladium-containing nanoparticles, a process for preparing them and also catalysts prepared from them for producing vinyl acetate. The invention relates to soluble nanoparticles which comprise palladium alone or palladium together with metals of the groups 8-11 of the periodic table and which are embedded in protective colloids, wherein the protective colloids comprise at least one polymer having betaine groups, and to a process for preparing them. The soluble nanoparticles are suitable for the preparation of catalysts.

Abstract translation: 聚甜菜碱稳定的含钯纳米颗粒，其制备方法以及由它们制备的用于生产乙酸乙烯酯的催化剂。 本发明涉及可溶性纳米颗粒，其包含单独的钯或钯与周期表第8-11组的金属，并且嵌入保护胶体中，其中保护胶体包含至少一种具有甜菜碱基团的聚合物， 准备他们 可溶性纳米颗粒适用于制备催化剂。

公开(公告)号：US6057260A

公开(公告)日：2000-05-02

申请号：US351720

申请日：1999-07-12

Applicant: Ioan Nicolau ,  Philip M. Colling

Inventor： Ioan Nicolau ,  Philip M. Colling

IPC: B01J23/52 ,  B01J23/89 ,  C07B61/00 ,  C07C67/055 ,  C07C69/15 ,  B01J23/72 ,  B01J23/02 ,  B01J23/44

CPC classification number: B01J23/8946 ,  B01J23/52 ,  B01J23/8926 ,  C07C67/055

Abstract: A catalyst for the production of vinyl acetate by reaction of ethylene, oxygen and acetic acid as reactants comprising a porous support on the porous surfaces of which is deposited catalytically effective amounts of metallic palladium and gold, copper as the free metal or cupric acetate, and a fourth metal selected from the group consisting of magnesium calcium, barium, and zirconium, as its oxide or mixture of oxide and free metal.

Abstract translation: 用于通过乙烯，氧和乙酸的反应生产乙酸乙烯酯的催化剂作为反应物，其反应物在其多孔表面上沉积有催化有效量的金属钯和金，铜作为游离金属或乙酸铜，以及 选自镁钙，钡和锆的第四种金属作为其氧化物或氧化物和游离金属的混合物。

公开(公告)号：US6040474A

公开(公告)日：2000-03-21

申请号：US55398

申请日：1998-04-06

Applicant: Simon Jobson ,  Derrick John Watson

Inventor： Simon Jobson ,  Derrick John Watson

IPC: C07C51/25 ,  C07C53/08 ,  C07C67/055 ,  C07C69/15 ,  C07C69/00

CPC classification number: C07C51/25 ,  C07C67/055 ,  Y02P20/125

Abstract: 1. Acetic acid and/or vinyl acetate are produced by an integrated process which comprises the steps:(a) contacting in a first reaction zone a gaseous feedstock comprising ethylene and/or ethane and optionally steam with a molecular oxygen-containing gas in the presence of a catalyst active for the oxidation of ethylene to acetic acid and/or ethane to acetic acid and ethylene to produce a first product stream comprising acetic acid, water and ethylene (either as unreacted ethylene and/or as co-produced ethylene) and optionally also ethane, carbon monoxide, carbon dioxide and/or nitrogen;(b) contacting in a second reaction zone in the presence or absence of additional ethylene and/or acetic acid at least a portion of the first gaseous product stream comprising at least acetic acid and ethylene and optionally also one or more of water, ethane, carbon monoxide, carbon dioxide and/or nitrogen with a molecular oxygen-containing gas in the presence of a catalyst active for the production of vinyl acetate to produce a second product stream comprising vinyl acetate, water, acetic acid and optionally ethylene;(c) separating the product stream from step (b) by distillation into an overhead azeotrope fraction comprising vinyl acetate and water and a base fraction comprising acetic acid;(d) either (i) recovering acetic acid from the base fraction separated in step (c) and optionally recycling the azeotrope fraction separated in step (c) after partial or complete separation of the water therefrom to step (c),or (ii) recovering vinyl acetate from the azeotrope fraction separated in step (c) and optionally recycling the base fraction separated in step (c) to step (b),or (iii) recovering acetic acid from the base fraction separated in step (c) and recovering vinyl acetate from the overhead azeotrope fraction recovered in step (c).

公开(公告)号：US5990344A

公开(公告)日：1999-11-23

申请号：US960306

申请日：1997-10-29

Applicant: John William Couves ,  Simon James Kitchen

Inventor： John William Couves ,  Simon James Kitchen

IPC: B01J27/053 ,  B01J23/44 ,  B01J23/52 ,  B01J23/63 ,  B01J23/89 ,  B01J27/13 ,  B01J27/25 ,  B01J31/04 ,  B01J37/16 ,  C07B61/00 ,  C07C67/04 ,  C07C67/055 ,  C07C69/15 ,  C07C67/05

CPC classification number: C07C67/055 ,  B01J23/44 ,  B01J23/52 ,  B01J23/63 ,  B01J23/89 ,  B01J37/16

Abstract: A process for the production of vinyl acetate which comprises contacting ethylene, acetic acid and an oxygen-containing gas with a supported palladium catalyst prepared by a process comprising the steps of (a) impregnating a catalyst support with a palladium compound, (b) converting the palladium compound to substantially metallic palladium, and (c) sintering the supported palladium at a temperature of greater than 500.degree. C.

Abstract translation: 一种制备乙酸乙烯酯的方法，其包括使乙烯，乙酸和含氧气体与负载的钯催化剂接触，所述负载的钯催化剂通过包括以下步骤的方法制备，所述方法包括以下步骤：（a）用钯化合物浸渍催化剂载体，（b）转化 钯化合物至基本上金属的钯，和（c）在大于500℃的温度下烧结负载的钯。