Title:
精製された形態でメタンスルホン酸を回収するための方法及びシステム
Document Type and Number:
Japanese Patent JP7062686
Kind Code:
B2
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.
Inventors:
Jay F Miller
Gary S. Smith
George Sea Fortman
Villa Earl Srinivas
Gary S. Smith
George Sea Fortman
Villa Earl Srinivas
Application Number:
JP2019561273A
Publication Date:
May 06, 2022
Filing Date:
May 08, 2018
Export Citation:
Assignee:
Arkema Incorporated
International Classes:
C07C303/44; C07C303/06; C07C309/04
Domestic Patent References:
| JP2016540743A | ||||
| JP2001508427A | ||||
| JP2001064249A | ||||
| JP6298720A |
Foreign References:
| WO2015071365A1 | ||||
| CN105237441A |
Attorney, Agent or Firm:
Axis International Patent Business Corporation
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