公开(公告)号：US12037310B2

公开(公告)日：2024-07-16

申请号：US17342737

申请日：2021-06-09

Applicant: Arkema Inc.

Inventor： Jean-Philippe R. Chauvin ,  Brian E. Lordan ,  Patricia Wing-Kee Cheung ,  Vijay R. Srinivas ,  Andrew D. Polli

IPC: B01J19/12 ,  C07C319/04 ,  C07C319/28 ,  B01D3/06

CPC classification number: C07C319/04 ,  B01J19/123 ,  C07C319/28 ,  B01D3/06 ,  B01J2219/00101 ,  C07C319/04 ,  C07C321/04 ,  C07C319/28 ,  C07C321/04

Abstract: Continuous photochemical production of high purity linear mercaptan and sulfide-containing compositions.

公开(公告)号：US20190135740A1

公开(公告)日：2019-05-09

申请号：US16238548

申请日：2019-01-03

Applicant: Arkema Inc.

Inventor： Robert George Syvret ,  Craig Alan Polsz ,  Dana Lee Swan ,  Vijay R. Srinivas

IPC: C07C319/02

Abstract: A method of making CF3CH2SH, comprising a step of reacting CF3CH2X, wherein X is halide or tosylate, with MSH, where M is an alkali metal such as Na or K, to yield CF3CH2SH.

公开(公告)号：US11161810B1

公开(公告)日：2021-11-02

申请号：US16897387

申请日：2020-06-10

Applicant: Arkema Inc.

Inventor： Jean-Philippe R. Chauvin ,  Brian E. Lordan ,  Patricia Wing-Kee Cheung ,  Vijay R. Srinivas ,  Andrew D. Polli

IPC: C07C319/04 ,  B01J19/12 ,  C07C319/28 ,  B01D3/06

Abstract: Continuous photochemical production of high purity linear mercaptan and sulfide-containing compositions.

公开(公告)号：US10717707B2

公开(公告)日：2020-07-21

申请号：US16238548

申请日：2019-01-03

Applicant: Arkema Inc.

Inventor： Robert George Syvret ,  Craig Alan Polsz ,  Dana Lee Swan ,  Vijay R. Srinivas

IPC: C07C319/02

Abstract: A method of making CF3CH2SH, comprising a step of reacting CF3CH2X, wherein X is halide or tosylate, with MSH, where M is an alkali metal such as Na or K, to yield CF3CH2SH.

公开(公告)号：US20170210706A1

公开(公告)日：2017-07-27

申请号：US15500654

申请日：2015-07-31

Applicant: Arkema Inc.

Inventor： Robert George Syvret ,  Craig Alan Polsz ,  Dana Lee Swan ,  Vijay R. Srinivas

IPC: C07C319/02

CPC classification number: C07C319/02 ,  C07C323/03

Abstract: A method of making CF3CH2SH, comprising a step of reacting CF3CH2X, wherein X is halide or tosylate, with MSH, where M is an alkali metal such as Na or K, to yield CF3CH2SH. More specifically, a method of making CF3CH2SH, a step of reacting CF3CH2CI with a molar excess of NaSH in a reaction medium of one or more polar organic solvents at a temperature of from about 70 C to about 110 C for a time of from about 1 to about 5 hours.

公开(公告)号：US10669232B2

公开(公告)日：2020-06-02

申请号：US16485464

申请日：2018-05-08

Applicant: Arkema Inc.

Inventor： Jay F. Miller ,  Gary S. Smith ,  George C. Fortman ,  Vijay R. Srinivas

IPC: C07C303/44 ,  C07C309/04

Abstract: Aspects of the invention relate to systems and processes for recovering methanesulfonic acid, in a purified form, from a composition additionally including sulfur trioxide. In accordance with one aspect, the invention provides a process that includes separating a feed stream comprised of hydrocarbons, methanesulfonic acid, sulfur trioxide, and optionally sulfuric acid to produce a light stream comprised of hydrocarbons and a heavy stream comprised of methanesulfonic acid and sulfur trioxide; contacting (e.g., by mixing) the heavy stream with a reactive additive capable of reacting with sulfur trioxide, under conditions effective to cause reaction of the reactive additive with the sulfur trioxide to produce a heavy reaction product having a boiling point higher than the boiling point of methanesulfonic acid; and separating the heavy stream using a distillation column to produce a distillate stream consisting essentially of methanesulfonic acid and a bottoms stream comprising the heavy reaction product.