公开(公告)号：US20200039926A1

公开(公告)日：2020-02-06

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.

公开(公告)号：US20210301190A1

公开(公告)日：2021-09-30

申请号：US17346367

申请日：2021-06-14

Applicant: Arkema Inc.

Inventor： Laurent T. ABBAS ,  George C. FORTMAN

IPC: C09K5/04 ,  F25B9/00

Abstract: The present disclosure is directed to refrigerant compositions having reduced flammability profiles. The reduced flammability refrigerants comprise a refrigerant and an additive. Also disclosed are methods of increasing the minimum ignition energy of a refrigerant and methods of increasing the lower flammability limit of a refrigerant. The present disclosure is also directed to a method of scavenging radicals in a refrigerant.

公开(公告)号：US20200017743A1

公开(公告)日：2020-01-16

申请号：US16490716

申请日：2018-03-05

Applicant: ARKEMA INC.

Inventor： Laurent T. ABBAS ,  George C. FORTMAN

IPC: C09K5/04 ,  F25B9/00

Abstract: The present disclosure is directed to refrigerant compositions having reduced flammability profiles. The reduced flammability refrigerants comprise a refrigerant and an additive. Also disclosed are methods of increasing the minimum ignition energy of a refrigerant and methods of increasing the lower flammability limit of a refrigerant. The present disclosure is also directed to a method of scavenging radicals in a refrigerant.