公开(公告)号：US11702386B2

公开(公告)日：2023-07-18

申请号：US16970987

申请日：2018-02-21

申请人： RHODIA OPERATIONS ,  SOLVAY SA

发明人： Olivier Back ,  Rémy Leroy ,  Philippe Marion

IPC分类号： C07C303/06 ,  C07C29/149 ,  C07C31/02 ,  C07C309/20 ,  B01J19/00 ,  B01J23/745 ,  B01J35/02

CPC分类号： C07C303/06 ,  B01J19/0013 ,  B01J23/745 ,  B01J35/026 ,  C07C29/149 ,  B01J2219/00029 ,  C07C31/02 ,  C07C309/20

摘要： Process P1 for the manufacture of a secondary fatty alcohol, said process P1 comprising synthesizing an internal ketone K1 by a process P0 comprising the decarboxylative ketonization reaction of a fatty acid or the like in a liquid phase with a metal compound as catalyst in a reaction medium, wherein a ketone K2 at liquid state, which is identical or similar to the internal ketone K1, is introduced into the reaction medium, and subjecting the internal ketone K1 to a hydrogenation reaction with hydrogen gas as hydrogenating agent to form the secondary fatty alcohol. Use of the secondary fatty alcohol manufactured by the process P1 for the manufacture of an internal olefin or of an internal olefin sulfonate.

公开(公告)号：US20230159443A1

公开(公告)日：2023-05-25

申请号：US17799156

申请日：2021-02-08

申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.

发明人： Yusaku MASUHARA ,  Seiya ASHIBE

IPC分类号： C07C303/06

CPC分类号： C07C303/06

摘要： Provided is an industrially advantageous method for producing an alkanedisulfonic acid compound easily and inexpensively with a high yield. The present invention is a method for producing an alkanedisulfonic acid compound, comprising reacting at least one alkanesulfonic acid compound having a specific structure and sulfur trioxide in the presence of at least one member selected from the group consisting of a sulfoxide compound and sulfone compound having a specific structure to thereby obtain an alkanedisulfonic acid compound.

公开(公告)号：US11634385B2

公开(公告)日：2023-04-25

申请号：US17054630

申请日：2019-05-23

申请人： GRILLO-WERKE AG

发明人： Timo Ott ,  Christian Diaz-Urrutia ,  Ingo Biertuempel

IPC分类号： C07C303/06 ,  C07C305/26

摘要： The present invention relates to a process for preparing haloalkanesulfonic acids from sulfur trioxide and a haloalkane, particularly to a process for preparing trifluoromethane sulfonic acid from sulfur trioxide and trifluoromethane.

公开(公告)号：US11542230B2

公开(公告)日：2023-01-03

申请号：US16965039

申请日：2019-02-13

申请人： BASF SE

发明人： Timo Ott ,  Ingo Biertuempel

IPC分类号： C07C315/04 ,  C07C303/06 ,  C07C309/04

摘要： The present invention relates to novel uses of stable inorganic peroxoacids as catalysts in the preparation of alkanesulfonic acids from alkanes and sulfur trioxide, methods for the production of alkanesulfonic acids employing said catalysts as well as reaction mixtures comprising said catalysts. The invention particularly relates to the production of methanesulfonic acid from methane and sulfur trioxide employing stable inorganic peroxoacids as catalysts.

公开(公告)号：US11420938B2

公开(公告)日：2022-08-23

申请号：US16914224

申请日：2020-06-26

申请人： QIANJIANG YONGAN PHARMACEUTICAL CO LTD

发明人： Yong Chen ,  Xiquan Fang ,  Shaobo Li ,  Feng Liu ,  Xiaojun Jiang ,  Wei Zhou

IPC分类号： C07C303/44 ,  C07C303/06 ,  C07C305/00

摘要： A method and a production system for recovering and treating taurine mother liquor, which is used for the process of ethylene oxide taurine production process. As for the treatment of the last mother liquor of taurine, add alkali firstly to the last mother liquor of taurine and then acid to form salt, or add salt directly; then concentrate and crystallize and filter, to remove lots of impurities in taurine mother liquor. This solves the problem of separating impurities, greatly shortening the time of removing impurities. The last mother liquor can also be decolorizes and additional impurities removes by activated carbon, and the removal of salt by mixing ammonia into the mother liquor to obtain the pure taurine mother liquor, thereby recovering the mother liquor and increasing the product yield.

公开(公告)号：US11377419B2

公开(公告)日：2022-07-05

申请号：US16923804

申请日：2020-07-08

申请人： Veolia North America Regeneration Services, LLC

发明人： Alan K. Richards

IPC分类号： C07C303/06 ,  C07C309/04

摘要： Improved initiators, solvents, and SO3 mixtures are disclosed herein, which can increase the yields and efficiency of a chemical manufacturing process which uses a radical chain reaction to convert methane (CH4), which is a gas under any normal conditions, into methane-sulfonic acid (MSA), a liquid. MSA is useful and valuable in its own right, and it also can be processed to create desulfured fuels and other valuable chemicals. A preferred initiator combination has been identified, comprising at least two different sulfate peroxide compounds. One type or class of initiator can be called a “primary” (or major, main, principle, dominant, or similar terms) initiator, and the other type or class of initiator can be can be regarded as an “extender” (or secondary, supplemental, enhancing, tuning, tweaking, or similar terms) initiator. “Primary” initiator(s) include (unmethylated) Marshall's acid, mono-methyl-Marshall's acid, and di-methyl-Marshall's acid, while a secondary/extender initiator comprises methyl-Caro's acid, which can oxidize sulfur DI-oxide (an unwanted chain terminator) into sulfur TRI-oxide (an essential reagent). Various other enhancements to the MSA manufacturing process also are described.

公开(公告)号：US20220017458A1

公开(公告)日：2022-01-20

申请号：US17299764

申请日：2019-12-05

申请人： GRILLO-WERKE AG

发明人： Timo OTT ,  Christian DIAZ-URRUTIA ,  Matthias VOGT

IPC分类号： C07C303/06

摘要： The present invention relates to a method for recycling and/or disposal of halocarbons, particularly fluorinated alkanes, such as trifluoromethane, by reacting said halocarbons with sulfur trioxide, particularly to form halide sulfonic acids and sulfur dioxide.

公开(公告)号：US10981863B1

公开(公告)日：2021-04-20

申请号：US16914224

申请日：2020-06-26

申请人： QIANJIANG YONGAN PHARMACEUTICAL CO LTD

发明人： Yong Chen ,  Xiquan Fang ,  Shaobo Li ,  Feng Liu ,  Xiaojun Jiang ,  Wei Zhou

IPC分类号： C07C303/44 ,  C07C303/06 ,  C07C305/00

摘要： A method and a production system for recovering and treating taurine mother liquor, which is used for the process of ethylene oxide taurine production process. As for the treatment of the last mother liquor of taurine, add alkali firstly to the last mother liquor of taurine and then acid to form salt, or add salt directly; then concentrate and crystallize and filter, to remove lots of impurities in taurine mother liquor. This solves the problem of separating impurities, greatly shortening the time of removing impurities. The last mother liquor can also be decolorizes and additional impurities removes by activated carbon, and the removal of salt by mixing ammonia into the mother liquor to obtain the pure taurine mother liquor, thereby recovering the mother liquor and increasing the product yield.

公开(公告)号：US10961182B2

公开(公告)日：2021-03-30

申请号：US16349113

申请日：2017-11-27

申请人： BASF SE

发明人： Timo Ott ,  Ingo Biertümpel

IPC分类号： C07C303/06 ,  C07C409/44 ,  C07C303/44 ,  C07C309/04 ,  C07C407/00

摘要： The present invention relates to an alkane-sulfonation process using alkane and sulfur trioxide, especially pure sulfur trioxide (100%) under solvent-free conditions in the presence of an initiator. It further relates to the use of a precursor which forms “in-situ” an initiator for manufacturing of alkanesulfonic acids, especially methanesulfonic acids.

公开(公告)号：US10894766B2

公开(公告)日：2021-01-19

申请号：US16618283

申请日：2018-05-23

申请人： BASF SE

发明人： Jan Spielmann ,  Juergen Wortmann ,  Frieder Borgmeier ,  Michael Zeilinger ,  Rosario Mazarro Berdonces ,  Bjoern Kaibel

IPC分类号： C07C317/04 ,  C07C315/06 ,  C07C303/06 ,  C07C303/44 ,  C07C309/04

摘要： The present invention deals with a process for the production of alkanesulfonic acids, in particular methanesulfonic acid, and a method of purification of the raw products.