公开(公告)号：US20220340518A1

公开(公告)日：2022-10-27

申请号：US17766035

申请日：2020-09-22

Applicant: BASF SE

Inventor： Frank PIEPENBREIER ,  Andreas KEMPTER ,  Chee Jian CHAN ,  Rosario MAZARRO BERDONCES ,  Kerstin SCHIERLE-ARNDT ,  Bjoern KAIBEL ,  Jan SPIELMANN ,  Frieder BORGMEIER ,  Michael ZEILINGER ,  Ingo BIERTUEMPEL ,  Timo OTT

IPC: C07C303/06

Abstract: The present invention relates to an improved process for manufacturing of alkanesulfonic acids.

公开(公告)号：US20200223792A1

公开(公告)日：2020-07-16

申请号：US16627009

申请日：2018-06-28

Applicant: BASF SE

Inventor： Timo OTT

IPC: C07C303/22

Abstract: The present invention relates to a process for the production of alkane sulfonic acid with a regulator as well as two specific compounds which can be used as regulator in a respective process.

公开(公告)号：US20220033354A1

公开(公告)日：2022-02-03

申请号：US17279450

申请日：2019-09-19

Applicant: BASF SE

Inventor： Timo OTT ,  Ingo BIERTUEMPEL

IPC: C07C303/06 ,  C07C303/44

Abstract: The present invention relates to the use of cations or compounds forming stable cations in the production of alkane sulfonic acids as well as methods to produce methane sulfonic acids employing the cations as catalyst.

公开(公告)号：US20200369604A1

公开(公告)日：2020-11-26

申请号：US16965039

申请日：2019-02-13

Applicant: BASF SE

Inventor： Timo OTT ,  Ingo BIERTUEMPEL

IPC: C07C315/04

Abstract: 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：US20220259143A1

公开(公告)日：2022-08-18

申请号：US17625672

申请日：2020-07-02

Applicant: BASF SE

Inventor： Timo OTT

IPC: C07C303/44

Abstract: The present invention refers to a method for reducing SO3 concentration in a mixture comprising methane sulfonic acid and SO3, the method comprising: i. providing a mixture comprising methane sulfonic acid and SO3, ii. determining the amount of an additive necessary to reduce the concentration of SO3 in the mixture by forming a reaction product between the additive and SO3, iii. introducing said predetermined amount of the additive into the mixture; iv. optionally repeating steps ii. and iii., wherein the determination of the amount of additive necessary to reduce the concentration of SO3 in the mixture is performed by measuring conductivity and/or density of the reaction mixture.

公开(公告)号：US20220153662A1

公开(公告)日：2022-05-19

申请号：US17441210

申请日：2020-03-17

Applicant: BASF SE

Inventor： Timo OTT

IPC: C07C7/17 ,  C10L3/10

Abstract: The present invention relates to a method for the purification of alkanes, especially methane, wherein an alkane comprising impurities, especially methane, is reacted with an active compound, optionally in the presence of sulfur trioxide, whereby the impurities are removed. The present invention furthermore relates to the use of the active compound and sulfur trioxide in the purification of alkanes, especially methane.