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1. 发明授权

US11261149B2 Method for producing acetic acid 有权
公开(公告)号：US11261149B2
公开(公告)日：2022-03-01
申请号：US16482675
申请日：2018-07-02
申请人： DAICEL CORPORATION
发明人： Masahiko Shimizu
IPC分类号： C07C51/12 , C07C51/44 , B01D53/14 , C07C53/08 , C07C51/42
摘要： Provided is an acetic acid production method including an absorption step that enables efficient and energy-saving separation of methyl iodide in a downstream step, when provided, of separating methyl iodide from a solution after the absorption of methyl iodide. The acetic acid production method according to the present invention includes an absorption step in an acetic acid production process. In the absorption step, at least a portion of offgases formed in the process is fed to an absorption column, is brought into contact with an absorbent including an organic acid having a higher boiling point as compared with acetic acid to allow the absorbent to absorb an iodine compound from the offgas, and a gas having a lower iodine compound concentration as compared with the offgas, and a solution containing the absorbent and the iodine compound are thereby to be separated.

2. 发明授权

US11091457B2 Synthetic nicotine composition 有权
公开(公告)号：US11091457B2
公开(公告)日：2021-08-17
申请号：US16734413
申请日：2020-01-06
申请人： Yunnan Xike Science & Technology Co., Ltd.
发明人： Zheng Chen , Yinghui Cao , Ningning Yan , Songfeng Wang , Yong Zhang , Yuefeng Chen , Zhennan Huang , Shenghong Yuan
IPC分类号： C07D401/04 , C07C233/07 , C07C237/22 , C07C25/08 , C07C53/02 , C07C53/08 , C07C53/126 , C07C57/10 , C07C57/12 , C07C59/08 , C07C59/185 , C07C59/265 , C07C63/06 , C07D207/04 , C07D233/58 , C07D235/06 , C07D241/04
摘要： A synthetic nicotine composition comprising synthetic nicotine, a synthetic nicotine salt and a synthetic nicotine derivative, wherein the synthetic nicotine, the synthetic nicotine salt, and the synthetic nicotine derivative are in mass percentage; the synthetic nicotine accounts for 1-20%, the synthetic nicotine salt accounts for 30-70%, and the synthetic nicotine derivative accounts for 20-50%; and the synthetic nicotine is one or more of S-nicotine and a mixture of R-nicotine containing a racemate and S-nicotine. The synthetic nicotine, synthetic nicotine salt and synthetic nicotine derivative according to the present invention are proportionally mixed to prepare an existing synthetic nicotine product, which relieves the problem of the impact of impurities in natural extracted nicotine products causing an unpleasant smell, a bitter taste and a strong volatility, and can be used in the fields of low temperature heat-not-burn products, snuff, electronic cigarettes, nicotine release patches, insecticides, herbicides, microbicides, drug synthesis, etc.

3. 发明授权

US10781155B2 Method for producing acetic acid 有权
公开(公告)号：US10781155B2
公开(公告)日：2020-09-22
申请号：US16071337
申请日：2018-03-27
申请人： DAICEL CORPORATION
发明人： Masahiko Shimizu
IPC分类号： C07C51/12 , C07C51/44 , C07C53/08
摘要： Provided are a method and an acetic acid production method, each of which can effectively restrain or prevent local corrosion of an inner wall of a process unit and/or line and can lower a formic acid concentration in an acetic acid product. The method produces acetic acid by a process including (1) a reaction step and (A) a separation step. In the reaction step (1), methanol is carbonylated with carbon monoxide in the presence of a catalytic system, acetic acid, methyl acetate, and water, where the catalytic system includes a metal catalyst and methyl iodide. In the separation step (A), the reaction mixture resulting from the reaction step is separated, using at least one selected from evaporators and distillation columns, into a stream containing the catalyst, an acetic acid stream rich in acetic acid, and a stream rich in lower-boiling components as compared with the acetic acid stream. In this method, an oxygen concentration is controlled by at least one of (a) controlling the oxygen concentration in a gaseous phase in the process to less than 7 percent by volume, and (b) controlling the oxygen concentration in a liquid phase in the process to less than 7×10−5 g/g. In addition, a formic acid concentration in the liquid phase in the process is controlled to 500 ppm by mass or less. Thus, the formation of at least one of iodine and formic acid is restrained.

4. 发明授权

US10710953B2 Method for purification of GAA 有权
公开(公告)号：US10710953B2
公开(公告)日：2020-07-14
申请号：US16362197
申请日：2019-03-22
申请人： LyondellBasell Acetyls, LLC
发明人： Noel C. Hallinan , David L. Ramage , Daniel F. White
IPC分类号： C07C51/12 , C07C53/08 , C07C51/47
摘要： A method comprising: contacting methanol with carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions to form a carbonylation product comprising acetic acid; separating the carbonylation product into a liquid fraction and a vapor fraction comprising a majority of the acetic acid in the carbonylation product; removing, from the vapor fraction, water, light ends having a boiling point less than acetic acid, heavy ends having a boiling point greater than acetic acid, or a combination thereof, to yield a crude acetic acid product comprising at least 99.5 wt % acetic acid, less than or equal to 0.2 wt % water, and less than or equal to 2000 ppm oxidizable impurities, based on the total weight of the crude acetic acid product; and contacting the crude acetic acid product with an acidic ion exchange resin to provide a purified acetic acid product comprising less than 100 ppm oxidizable impurities.

5. 发明授权

US10693073B2 Fullerene derivatives and organic electronic device comprising fullerene derivatives 有权
公开(公告)号：US10693073B2
公开(公告)日：2020-06-23
申请号：US15110308
申请日：2015-01-08
申请人： LG CHEM, LTD.
发明人： Jaesoon Bae , Jaechol Lee , Jiyoung Lee , Doowhan Choi
IPC分类号： H01L51/00 , C07C69/157 , C07C69/612 , C07C69/618 , C07C69/738 , C07C69/42 , C07C211/00 , C07C69/757 , C07C229/42 , C07C69/708 , C07C69/54 , C09K11/65 , C07C69/78 , C07C33/38 , C07C69/716 , C07C69/24 , C07C69/76 , C01B32/152 , C07C43/168 , C07C53/08 , C07C59/84 , C07C63/06 , C07C63/36 , C07C63/44 , C07D333/38 , H01L51/42 , B82Y30/00 , B82Y40/00
摘要： The present specification relates to an organic electronic device including a fullerene derivative.

6. 发明授权

US10584087B2 Removal of permanganate reducing compounds from intermediate GAA process streams 有权
公开(公告)号：US10584087B2
公开(公告)日：2020-03-10
申请号：US16362245
申请日：2019-03-22
申请人： LyondellBasell Acetyls, LLC
发明人： Noel C. Hallinan , David L. Ramage , Daniel F. White
IPC分类号： C07C51/12 , C07C53/00 , C07C53/08 , C07C51/47 , C07C51/44
摘要： A method of producing acetic acid, the method comprising: reacting methanol and/or methanol derivatives with carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions to form a carbonylation product comprising acetic acid and one or more oxidizable impurities; and contacting at least a portion of the carbonylation product or a derivative thereof with an adsorbent at adsorption conditions to provide a purified product comprising a reduced concentration of at least one of the one or more oxidizable impurities relative to a concentration thereof in the at least a portion of the carbonylation product or the derivative thereof. A system for carrying out the method is also provided.

7. 发明授权

US10280132B2 Process for catalytic transvinylation of carboxylic acids 有权
公开(公告)号：US10280132B2
公开(公告)日：2019-05-07
申请号：US15537231
申请日：2016-08-03
申请人： Wacker Chemie AG
发明人： Peter Schultheiss , Volker Hoellein , Brigitte Patsch
IPC分类号： C07C51/09 , C07C53/08 , C07C67/10 , C07C67/54 , C07C69/01 , C07C69/24
摘要： A carboxylic acid is transvinylated with vinyl ester to give a vinyl ester product and the corresponding acid of the vinyl ester in the presence of a catalyst, at a temperature of 100° C. to 170° C. and a pressure of 2 bar abs. to 15 bar abs., wherein the vinyl ester, the carboxylic acid and the catalyst are supplied to a reactor, the transvinylation reaction is conducted, and, on the completion of the transvinylation, the vinyl ester product is separated from the reaction mixture by distillation, characterized in that the reaction mixture is decompressed in a decompression vessel, the gaseous phase obtained is condensed and recycled into the reactor without further purification, and the liquid phase obtained is freed of vinyl ester and corresponding acid with a first distillation, and the vinyl ester product is separated from the reaction mixture in a further distillation step.

8. 发明申请

US20190023640A1 PRODUCTION OF PRODUCTS FROM NATURAL RESOURCES 审中-公开
公开(公告)号：US20190023640A1
公开(公告)日：2019-01-24
申请号：US16141501
申请日：2018-09-25
申请人： SAUDI BASIC INDUSTRIES CORPORATION
发明人： Khalid Karim , Labeeb Chaudhary Ahmed
IPC分类号： C07C51/225 , C07C51/215 , C07C51/25 , B01J37/03 , B01J27/051 , B01J27/057 , B01J23/889 , B01J27/187 , C07C1/04 , C07C57/04 , C07C53/08
CPC分类号： C07C51/225 , B01J23/8892 , B01J27/0515 , B01J27/0576 , B01J27/187 , B01J37/035 , C07C1/0435 , C07C1/0485 , C07C51/215 , C07C51/252 , C07C2523/889 , C07C2527/187 , C07C57/04 , C07C53/08
摘要： The method disclosed herein relates to two stage catalytic processes for converting syngas to acetic acid, acrylic acid and/or propylene. More specifically, the method described and claimed herein relate to a method of producing acrylic acid and acetic acid comprising the steps of: a) providing a feedstream comprising syngas; b) contacting the feedstream with a first catalyst to produce a first product stream comprising C2-C3 olefins and/or C2-C3 paraffins; and c) contacting the first product stream with oxygen gas and a second catalyst, thereby producing a second product stream comprising acrylic acid and acetic acid, wherein there is no step for separating the components of the first product stream before the first product stream is contacted with the second catalyst.

9. 发明申请

US20190010109A1 PROCESS FOR FLASHING A REACTION MEDIUM 审中-公开
公开(公告)号：US20190010109A1
公开(公告)日：2019-01-10
申请号：US16130428
申请日：2018-09-13
申请人： CELANESE INTERNATIONAL CORPORATION
发明人： Ronald D. SHAVER , Yaw-Hwa LIU , Mark O. SCATES
IPC分类号： C07C51/12 , C07C41/01 , B01J27/20 , B01J31/20 , B01J31/26 , C07C51/44 , B01D3/00 , C07C53/08
摘要： A process for producing acetic acid is disclosed in which the methyl iodide concentration is maintained in the vapor product stream formed in a flashing step. The methyl iodide concentration in the vapor product stream ranges from 24 to less than 36 wt. % methyl iodide, based on the weight of the vapor product stream. In addition, the acetaldehyde concentration is maintained within the range from 0.005 to 1 wt. % in the vapor product stream. The vapor product stream is distilled in a first column to obtain an acetic acid product stream comprising acetic acid and up to 300 wppm hydrogen iodide and/or from 0.1 to 6 wt. % methyl iodide and an overhead stream comprising methyl iodide, water and methyl acetate.

10. 发明申请

US20180304245A1 CARBONYLATION CATALYST AND PROCESS 审中-公开
公开(公告)号：US20180304245A1
公开(公告)日：2018-10-25
申请号：US16018689
申请日：2018-06-26
申请人： BP CHEMICALS LIMITED
发明人： John Glenn SUNLEY
IPC分类号： B01J29/87 , C07C69/14 , B01J29/06 , C07C53/08 , C07C51/347 , C07C51/12 , C07C51/09 , C07C29/153 , C07C29/136 , C07C29/132 , C01B39/26 , C01B39/06 , C07C67/37 , B01J29/18 , B01J37/00 , B01J35/10 , B01J29/70 , B01J29/65 , B01J29/24
摘要： A catalyst and process for the production of methyl acetate by contacting dimethyl ether and carbon monoxide in the presence of a catalyst which is a zeolite of micropore volume of 0.01 ml/g or less.

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