WO2015071365A1 - Process for preparing alkanesulfonic acids from sulfur trioxide and an alkane - Google Patents

Process for preparing alkanesulfonic acids from sulfur trioxide and an alkane Download PDF

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Publication number
WO2015071365A1
WO2015071365A1 PCT/EP2014/074500 EP2014074500W WO2015071365A1 WO 2015071365 A1 WO2015071365 A1 WO 2015071365A1 EP 2014074500 W EP2014074500 W EP 2014074500W WO 2015071365 A1 WO2015071365 A1 WO 2015071365A1
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Prior art keywords
alkane
peroxide
sulfur trioxide
process according
dasp
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PCT/EP2014/074500
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French (fr)
Inventor
Timo Ott
Ingo BIERTÜMPEL
Klaus Bunthoff
Alan Richards
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Grillo Chemie Gmbh
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Priority to US15/036,215 priority Critical patent/US9902689B2/en
Priority to CN201480060085.0A priority patent/CN105722819A/en
Priority to EP14802357.5A priority patent/EP3068760B1/en
Publication of WO2015071365A1 publication Critical patent/WO2015071365A1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
    • C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
    • C07C303/06—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with sulfuric acid or sulfur trioxide

Definitions

  • the present invention relates to a process for preparing alkanesulfonic acids from sulfur trioxide and an alkane.
  • Alkanesulfonic acids are organic acids that can reach a similar acid strength as that of inorganic mineral acids, for example, sulfuric acid .
  • the sulfonic acids are non-oxidizing and do not give off vapors that are harmful to health, as can be observed with hydrochloric and nitric acids.
  • many sulfonic acids, for example, methanesulfonic acid are biologically degradable.
  • the applications of sulfonic acids are many, for example, in cleaning agents, surfactants, as catalysts, and in organic synthesis, pharmaceutical chemistry, for example, as protective groups.
  • the salts of sulfonic acids are employed, for example, as surfactants, for example, sodium dodecylsulfonate, or in the electroplating industry, especially as tin, zinc, silver, lead and indium, but also other metal alkylsulfonates.
  • surfactants for example, sodium dodecylsulfonate
  • electroplating industry especially as tin, zinc, silver, lead and indium, but also other metal alkylsulfonates.
  • the very high solubility of alkyl sulfonates plays an important role, in particular. Further, no harmful gases are formed in electrolysis, and the use of toxic compounds, for example, cyanide, which is common in many cases, is dispensed with.
  • the structurally simplest representative of alkanesulfonic acids is methanesulfonic acid .
  • US 2,493,038 describes the preparation of methanesulfonic acid from S0 3 and methane.
  • US 2005/0070614 Al and US 2008/0161591 Al describe further methods for preparing methanesulfonic acid, and its application.
  • the methods known in the prior art are in part complicated, cost-intensive, and lead to undesirable products because of the harsh conditions.
  • the object of the invention is achieved by a process for preparing alkanesulfonic acids from sulfur trioxide and an alkane, wherein sulfur trioxide, the alkane and dialkylsulfonoyl peroxide (DASP) react as components.
  • DASP dialkylsulfonoyl peroxide
  • the process is characterized in that the following steps are performed : a) sulfur trioxide or a solution thereof in a solvent is charged in a high-pressure reactor in a condensed phase; b) a temperature of at least 25 °C is set; c) the gaseous alkane is introduced to the high-pressure reactor until a pressure of at least 10 bar is reached; d) dialkylsulfonoyl peroxide (DASP) is added; and e) after a duration of at least 5 hours, the produced alkanesulfonic acid is withdrawn.
  • Advantages of the process according to the invention include, for example, the fact that the reaction temperatures can be set lower than in conventional methods, and thus side reactions can be altogether reduced or even avoided .
  • the alkane is preferably an alkane that is gaseous under standard conditions, especially one selected from the group consisting of methane, ethane, propane or butane, or combinations thereof.
  • the alkyl radical of the dialkylsulfonoyl peroxide corresponds to the alkane employed in step c) .
  • the dialkylsulfonoyl peroxide is dimethylsulfonoyl peroxide, and in the case of ethane, it is diethylsulfonoyl peroxide, etc.
  • the temperature is set to from 25 °C to 65 °C in step b). Typically the temperature is set between 45 and 58°C.
  • the pressure is set to from 40 bar to 110 bar in step c). Typically the pressure is 75- 110bar.
  • the duration in step e) may be from 3 hours to 7 days, in particular.
  • dialkylsulfonoyl peroxide DASP
  • the alkyl radical of the alkanesulfonic acid is the same as the alkyl radical in the dialkylsulfonoyl peroxide.
  • the concentration of the DASP is from 1% by weight to 40% by weight, or from 1% by weight to 10% by weight.
  • the addition of the dialkylsulfonoyl peroxide (DASP) is typically effected at a flow rate of from 0.1 ml/min to 10 ml/min.
  • methane reacts with sulfur trioxide and a free-radical initiator in a solvent to form methanesulfonic acid .
  • Sulfur trioxide concentrations of from above 0 to 100% by weight may be employed . In particular, however, concentrations of from above 0 to 55%, especially of 20-55% by weight are employed .
  • the reaction temperature depends on the free-radical initiator em- ployed, and can be from 0 °C to more than 100 °C.
  • the pressure is proportional to the methane concentration in the solution and is to be set in accordance with the reaction conditions (sulfur trioxide concentration and free-radical initiator concentration, type of initiator), typically from 0.5 MPa (5 bar) to 12 MPa (120 bar) .
  • the reaction is also possible at higher or lower pressures. It is recom- mendable to purge the reactor with nitrogen in advance and afterwards with methane gas. All liquids should be degassed . All operations should be performed under inert conditions using a non-reactive gas to purge the whole apparatus before doing an experiment, e.g . nitrogen or a noble gas.
  • Tab. 1 Different S0 3 -Concentration vs. the yield of Methanesulfonic acid
  • the reaction is performed in a high-pressure autoclave. It may be operated as a stirred batch reactor, but also as a ((semi)continuous) flow reactor.
  • the materials of the reactors are pressure-resistant alloys (for example, Hastelloy C, stainless steel 316, 316L). These are either stable towards the reaction conditions and the corrosive properties of the different substances, or lined with glass, plastics, ceramic or the like.
  • pressure-resistant cylinders or high-pressure pumps for example, HPLC pumps
  • the methane consumption is controlled by a methane flow meter (constant pressure), or calculated from the pressure drop (constant volume).
  • the measured data are sent through a controller to a computer for recording .
  • An HPLC pump (Knauer) is connected to a one-gallon (3.75 liters) high-pressure stainless steel reactor equipped with a glass liner, immersion tube, manometer, cooling coils, filling nozzles, agitator and rupture disk.
  • a Swagelok cylinder 947.4 g of oleum (24%, from Grillo-Werke AG, Frankfurt) is added to the reactor.
  • the oleum is stirred with 100 revolutions per minute, and heated at 50 °C.
  • the reactor is pressurized with 10 MPa (100 bar) of methane gas. Over 1 hour, the pressure drops by about 1 MPa (10 bar). Therefore, the methane is repeatedly replenished .
  • a yield of more than 95% methanesulfonic acid is obtained (based on the sulfur trioxide employed).
  • sulfuric acid and methanesulfonic acid can be detected
  • the processing of the methanesulfonic acid is effected by distillation.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A process for preparing alkanesulfonic acids from sulfur trioxide and an alkane, wherein sulfur trioxide, the alkane and dialkylsulfonoyi peroxide (DASP) react as components, characterized in that the following steps are performed : a) sulfur trioxide is charged in a high-pressure reactor in a condensed phase; b) a temperature of at least 25 °C is set; c) the gaseous alkane is introduced to the high-pressure reactor until a pressure of at least 10 bar is reached; d) dialkylsulfonoyi peroxide (DASP) is added; and e) after a duration of at least 5 hours, the produced alkanesulfonic acid is withdrawn.

Description

Process for Preparing Alkanesulfonic Acids from Sulfur Trioxide and an Alkane
The present invention relates to a process for preparing alkanesulfonic acids from sulfur trioxide and an alkane.
Alkanesulfonic acids are organic acids that can reach a similar acid strength as that of inorganic mineral acids, for example, sulfuric acid . However, in contrast to usual mineral acids such as sulfuric and nitric acids, the sulfonic acids are non-oxidizing and do not give off vapors that are harmful to health, as can be observed with hydrochloric and nitric acids. Further, many sulfonic acids, for example, methanesulfonic acid, are biologically degradable. The applications of sulfonic acids are many, for example, in cleaning agents, surfactants, as catalysts, and in organic synthesis, pharmaceutical chemistry, for example, as protective groups. The salts of sulfonic acids are employed, for example, as surfactants, for example, sodium dodecylsulfonate, or in the electroplating industry, especially as tin, zinc, silver, lead and indium, but also other metal alkylsulfonates. The very high solubility of alkyl sulfonates plays an important role, in particular. Further, no harmful gases are formed in electrolysis, and the use of toxic compounds, for example, cyanide, which is common in many cases, is dispensed with.
The structurally simplest representative of alkanesulfonic acids is methanesulfonic acid . US 2,493,038 describes the preparation of methanesulfonic acid from S03 and methane. US 2005/0070614 Al and US 2008/0161591 Al describe further methods for preparing methanesulfonic acid, and its application. The methods known in the prior art are in part complicated, cost-intensive, and lead to undesirable products because of the harsh conditions.
The reaction conditions in conventional processes of alkanesulfonic acid production can result in undesirable side products, which even manifest themselves as disturbing inhibitors in the production of alkanesulfonic acids. This may lead to termination of the actual reaction for preparing the alkanesulfonic acid, but also to impurities, formation of side products and poor yields, based on sulfur trioxide and methane. It is the object of the present invention to provide a process that avoids the above mentioned drawbacks.
The object of the invention is achieved by a process for preparing alkanesulfonic acids from sulfur trioxide and an alkane, wherein sulfur trioxide, the alkane and dialkylsulfonoyl peroxide (DASP) react as components. The process is characterized in that the following steps are performed : a) sulfur trioxide or a solution thereof in a solvent is charged in a high-pressure reactor in a condensed phase; b) a temperature of at least 25 °C is set; c) the gaseous alkane is introduced to the high-pressure reactor until a pressure of at least 10 bar is reached; d) dialkylsulfonoyl peroxide (DASP) is added; and e) after a duration of at least 5 hours, the produced alkanesulfonic acid is withdrawn. Advantages of the process according to the invention include, for example, the fact that the reaction temperatures can be set lower than in conventional methods, and thus side reactions can be altogether reduced or even avoided .
The alkane is preferably an alkane that is gaseous under standard conditions, especially one selected from the group consisting of methane, ethane, propane or butane, or combinations thereof.
In another embodiment of the process according to the invention, the alkyl radical of the dialkylsulfonoyl peroxide (DASP) corresponds to the alkane employed in step c) . This means that, if methane is employed as the alkane, then the dialkylsulfonoyl peroxide is dimethylsulfonoyl peroxide, and in the case of ethane, it is diethylsulfonoyl peroxide, etc. In another embodiment of the process according to the invention, the temperature is set to from 25 °C to 65 °C in step b). Typically the temperature is set between 45 and 58°C.
In yet another embodiment of the process according to the invention, the pressure is set to from 40 bar to 110 bar in step c). Typically the pressure is 75- 110bar.
The duration in step e) may be from 3 hours to 7 days, in particular.
In the process according to the invention, it may be advantageous to dissolve the dialkylsulfonoyl peroxide (DASP) in an alkanesulfonic acid in step d), wherein the alkyl radical of the alkanesulfonic acid is the same as the alkyl radical in the dialkylsulfonoyl peroxide. In particular, the concentration of the DASP is from 1% by weight to 40% by weight, or from 1% by weight to 10% by weight. In the process according to the invention, the addition of the dialkylsulfonoyl peroxide (DASP) is typically effected at a flow rate of from 0.1 ml/min to 10 ml/min.
In the following, the invention is further illustrated in an exemplary way. Under elevated pressure, methane reacts with sulfur trioxide and a free-radical initiator in a solvent to form methanesulfonic acid . Sulfur trioxide concentrations of from above 0 to 100% by weight may be employed . In particular, however, concentrations of from above 0 to 55%, especially of 20-55% by weight are employed . The reaction temperature depends on the free-radical initiator em- ployed, and can be from 0 °C to more than 100 °C. The pressure is proportional to the methane concentration in the solution and is to be set in accordance with the reaction conditions (sulfur trioxide concentration and free-radical initiator concentration, type of initiator), typically from 0.5 MPa (5 bar) to 12 MPa (120 bar) . However, the reaction is also possible at higher or lower pressures. It is recom- mendable to purge the reactor with nitrogen in advance and afterwards with methane gas. All liquids should be degassed . All operations should be performed under inert conditions using a non-reactive gas to purge the whole apparatus before doing an experiment, e.g . nitrogen or a noble gas. Tab. 1 : Different S03-Concentration vs. the yield of Methanesulfonic acid
Figure imgf000005_0001
Tab. 2 : Effect of different Temperatures on the synthesis of Methanesulfonic acid
Figure imgf000005_0002
Tab. 3 : Effect of different pressures on the synthesis of Methanesulfonic acid .
Figure imgf000005_0003
The reaction is performed in a high-pressure autoclave. It may be operated as a stirred batch reactor, but also as a ((semi)continuous) flow reactor. The materials of the reactors are pressure-resistant alloys (for example, Hastelloy C, stainless steel 316, 316L). These are either stable towards the reaction conditions and the corrosive properties of the different substances, or lined with glass, plastics, ceramic or the like. For charging and metering the high-pressure reactor, either pressure-resistant cylinders or high-pressure pumps (for example, HPLC pumps) are employed . The methane consumption is controlled by a methane flow meter (constant pressure), or calculated from the pressure drop (constant volume). The measured data are sent through a controller to a computer for recording .
Example:
An HPLC pump (Knauer) is connected to a one-gallon (3.75 liters) high-pressure stainless steel reactor equipped with a glass liner, immersion tube, manometer, cooling coils, filling nozzles, agitator and rupture disk. Through a Swagelok cylinder, 947.4 g of oleum (24%, from Grillo-Werke AG, Frankfurt) is added to the reactor. Subsequently, the oleum is stirred with 100 revolutions per minute, and heated at 50 °C. After the temperature is reached, the reactor is pressurized with 10 MPa (100 bar) of methane gas. Over 1 hour, the pressure drops by about 1 MPa (10 bar). Therefore, the methane is repeatedly replenished . After one hour, the pressure is constant, and the oleum is saturated with methane gas. Now, 100 ml of DMSP (bis(methanesulfonyl)peroxide) solution (about 5 g in 100 ml methanesulfonic acid) is slowly metered with the HPLC pump (1 ml/min). The pressure increases by about 0.25 MPa (2.5 bar). The temperature remains constant. Over 15 hours, the pressure drops to 8.3 MPa (83 bar). The pressure is released through a sulfuric acid scrubber down to 0.5 MPa (5 bar). The sample is removed under a slightly increased pressure. It is a clear colorless liquid that does not fume. This solution is directly examined by ion chromatography. A yield of more than 95% methanesulfonic acid is obtained (based on the sulfur trioxide employed). In the NMR spectrum and with ion chromatography, only sulfuric acid and methanesulfonic acid can be detected The processing of the methanesulfonic acid is effected by distillation.

Claims

C L A I M S :
1. A process for preparing alkanesulfonic acids from sulfur trioxide and an alkane, wherein sulfur trioxide, the alkane and dialkylsulfonoyl peroxide (DASP) react as components, characterized in that the following steps are performed : a) sulfur trioxide or a solution thereof in a solvent is charged in a high- pressure reactor in a condensed phase; b) a temperature of at least 25 °C is set; c) the gaseous alkane is introduced to the high-pressure reactor until a pressure of at least 10 bar is reached; d) dialkylsulfonoyl peroxide (DASP) is added; and e) after a duration of at least 5 hours, the produced alkanesulfonic acid is withdrawn.
2. The process according to claim 1, wherein said alkane is an alkane that is gaseous under standard conditions, especially one selected from the group consisting of methane, ethane, propane or butane, or combinations thereof.
3. The process according to claim 1 or 2, wherein the alkyl radical of said dialkylsulfonoyl peroxide (DASP) corresponds to the alkane employed in step c).
4. The process according to at least one of claims 1 to 3, wherein the temperature is set to from 25 °C to 65 °C in step b).
5. The process according to at least one of claims 1 to 4, wherein the pressure is set to from 4 MPa (40 bar) to 11 MPa (110 bar) in step c). The process according to at least one of claims 1 to 5, wherein the duration in step e) is from 3 hours to 7 days.
The process according to at least one of claims 1 to 6, wherein said dialkylsulfonoyi peroxide (DASP) is added in step d) in an alkanesulfonic acid whose alkyl radical is the same as that of the dialkylsulfonoyi peroxide, especially in an amount of from 1% by weight to 10% by weight.
The process according to claim 7, wherein the addition of the dialkylsulfonoyi peroxide (DASP) is effected at a flow rate of from 0.1 ml/min to 10 ml/min.
PCT/EP2014/074500 2013-11-13 2014-11-13 Process for preparing alkanesulfonic acids from sulfur trioxide and an alkane WO2015071365A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9902689B2 (en) 2013-11-13 2018-02-27 Grillo Chemie Gmbh Process for preparing alkanesulfonic acids from sulfur trioxide and an alkane
WO2018096138A1 (en) 2016-11-28 2018-05-31 Grillo-Werke Ag Solvent-free alkane sulfonation
WO2018192954A1 (en) 2017-04-18 2018-10-25 Basf Se Process for purifying alkanesulfonic anhydride and process for producing alkanesulfonic acid using the purified alkanesulfonic anhydride
WO2018219726A1 (en) 2017-05-30 2018-12-06 Basf Se Process for the production of alkanesulfonic acids
WO2019002447A1 (en) * 2017-06-30 2019-01-03 Grillo-Werke Aktiengesellschaft Regulator for the production of alkane sulfonic acids
US10329251B2 (en) 2013-11-18 2019-06-25 Grillo-Werke Ag Initiator for preparing alkanesulfonic acids from alkane and oleum
RU2694545C1 (en) * 2018-03-05 2019-07-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "ДАГЕСТАНСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ" Dimethyl disulfide peroxide (dimeslyate peroxide) and a method for production thereof
WO2019154681A1 (en) 2018-02-07 2019-08-15 Basf Se Process for the manufacturing of alkanesulfonic acids
WO2019158577A1 (en) 2018-02-16 2019-08-22 Grillo-Werke Ag Catalysts for the synthesis of alkanesulfonic acids
WO2019158576A1 (en) * 2018-02-16 2019-08-22 Grillo-Werke Ag Direct synthesis of alkane sulfonic acids from alkane and sulfur trioxide employing heterogeneous catalysis
WO2019158892A1 (en) 2018-02-14 2019-08-22 Arkema France Industrial process for continuously synthesizing alkane-sulphonic acid
KR20200006575A (en) * 2017-05-11 2020-01-20 알케마 인코포레이티드 Method and system for recovering methanesulfonic acid in purified form
US10577312B2 (en) 2015-11-10 2020-03-03 Basf Se Process for purifying alkanesulfonic acids
WO2020064466A1 (en) 2018-09-25 2020-04-02 Basf Se Catalyst for the synthesis of alkanesulfonic acids
WO2020064573A1 (en) 2018-09-25 2020-04-02 Basf Se Catalysts for the synthesis of alkanesulfonic acids
WO2020064515A1 (en) 2018-09-25 2020-04-02 Basf Se Cations as catalyst in the production of alkane sulfonic acids
WO2020126855A1 (en) 2018-12-21 2020-06-25 Basf Se Mixture comprising methanesulfonic acid and sulfuric acid
EP3712123A1 (en) * 2019-03-21 2020-09-23 Grillo-Werke AG Process for the preparation of isotope labelled alkane sulfonic acid
WO2020187894A1 (en) 2019-03-21 2020-09-24 Basf Se Method for the purification of alkanes
WO2021023583A1 (en) 2019-08-07 2021-02-11 Basf Se Process for the production of alkanesulfonic acids
WO2021023582A1 (en) 2019-08-07 2021-02-11 Basf Se Recovery of water-free methanesulfonic acid from the bottom stream of a distillation column
EP3782981A1 (en) 2019-08-20 2021-02-24 Basf Se Catalysts for the synthesis of alkanesulfonic acids
WO2021063730A1 (en) 2019-10-01 2021-04-08 Basf Se Process for manufacturing alkanesulfonic acids

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190116290A (en) * 2017-02-07 2019-10-14 그릴로-베르케 아게 Method for preparing alkanesulfonic acid
WO2020212298A1 (en) * 2019-04-18 2020-10-22 Basf Se Process for providing anhydrous alkane sulfonic acids in purified form
CN111302978A (en) * 2020-04-17 2020-06-19 凯瑞环保科技股份有限公司 Synthesis device and synthesis method of alkyl sulfonic acid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007136425A2 (en) * 2006-05-19 2007-11-29 Richards, Alan, K. Manufacture of dimethyl ether or olefins from methane, using di(methyl-sulfonyl) peroxide as radical initiator
US20080161591A1 (en) * 2003-06-21 2008-07-03 Richards Alan K Anhydrous processing of methane into methane-sulfonic acid, methanol, and other compounds

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493038A (en) 1946-05-31 1950-01-03 Houdry Process Corp Reaction of methane with sulfur trioxide
US2619507A (en) 1951-01-05 1952-11-25 Dow Chemical Co Di(methanesulfonyl) peroxide and its preparation
US4680095A (en) 1986-11-03 1987-07-14 Pennwalt Corporation Continuous preparation of dialkanesulfonyl peroxide
US4910335A (en) * 1989-08-01 1990-03-20 Pennwalt Corporation Decolorization of alkanesulfonic and arenesulfonic acids
GB9023433D0 (en) 1990-10-27 1990-12-12 Interox Chemicals Ltd Peroxoacid manufacture
DE19743901C1 (en) * 1997-10-04 1999-04-22 Grillo Werke Ag Process for the preparation of methanesulfonic acid
EA200500779A1 (en) 2002-11-05 2006-02-24 Алан К. Ричардс NON-WATER CONVERSION OF METHANE AND OTHER LIGHT ALKANES TO METHANOL AND OTHER DERIVATIVES
US7282603B2 (en) 2003-06-21 2007-10-16 Richards Alan K Anhydrous processing of methane into methane-sulfonic acid, methanol, and other compounds
WO2015071351A1 (en) 2013-11-13 2015-05-21 Grillo Chemie Gmbh Process for preparing bis(alkanesulfonyl peroxide)
WO2015071371A1 (en) 2013-11-13 2015-05-21 Grillo Chemie Gmbh Process for preparing bis(alkanesulfonyl) peroxide by oxidation
US9902689B2 (en) 2013-11-13 2018-02-27 Grillo Chemie Gmbh Process for preparing alkanesulfonic acids from sulfur trioxide and an alkane
WO2015071455A1 (en) 2013-11-18 2015-05-21 Grillo-Werke Ag Novel initiator for preparing alkanesulfonic acids from alkane and oleum

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080161591A1 (en) * 2003-06-21 2008-07-03 Richards Alan K Anhydrous processing of methane into methane-sulfonic acid, methanol, and other compounds
WO2007136425A2 (en) * 2006-05-19 2007-11-29 Richards, Alan, K. Manufacture of dimethyl ether or olefins from methane, using di(methyl-sulfonyl) peroxide as radical initiator

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9902689B2 (en) 2013-11-13 2018-02-27 Grillo Chemie Gmbh Process for preparing alkanesulfonic acids from sulfur trioxide and an alkane
US11180448B2 (en) 2013-11-18 2021-11-23 Basf Se Initiator for preparing alkanesulfonic acids from alkane and oleum
US10329251B2 (en) 2013-11-18 2019-06-25 Grillo-Werke Ag Initiator for preparing alkanesulfonic acids from alkane and oleum
US10577312B2 (en) 2015-11-10 2020-03-03 Basf Se Process for purifying alkanesulfonic acids
WO2018096138A1 (en) 2016-11-28 2018-05-31 Grillo-Werke Ag Solvent-free alkane sulfonation
US10961182B2 (en) 2016-11-28 2021-03-30 Basf Se Solvent-free alkane sulfonation
WO2018192954A1 (en) 2017-04-18 2018-10-25 Basf Se Process for purifying alkanesulfonic anhydride and process for producing alkanesulfonic acid using the purified alkanesulfonic anhydride
US10730827B2 (en) 2017-04-18 2020-08-04 Basf Se Process for purifying alkanesulfonic anhydride and process for producing alkanesulfonic acid using the purified alkanesulfonic anhydride
JP2020519587A (en) * 2017-05-11 2020-07-02 アーケマ・インコーポレイテッド Method and system for recovering methanesulfonic acid in purified form
KR102495410B1 (en) 2017-05-11 2023-02-06 알케마 인코포레이티드 Methods and systems for recovering methanesulfonic acid in purified form
KR20200006575A (en) * 2017-05-11 2020-01-20 알케마 인코포레이티드 Method and system for recovering methanesulfonic acid in purified form
JP7062686B2 (en) 2017-05-11 2022-05-06 アーケマ・インコーポレイテッド Methods and systems for recovering methanesulphonic acid in purified form
EP3634597A4 (en) * 2017-05-11 2021-01-20 Arkema Inc. Processes and systems for recovering methanesulfonic acid in purified form
KR102629665B1 (en) * 2017-05-30 2024-01-25 바스프 에스이 Method for producing alkanesulfonic acids
KR20200015603A (en) * 2017-05-30 2020-02-12 바스프 에스이 Method for preparing alkanesulfonic acid
WO2018219726A1 (en) 2017-05-30 2018-12-06 Basf Se Process for the production of alkanesulfonic acids
WO2018219728A1 (en) * 2017-05-30 2018-12-06 Basf Se Process for the manufacturing of methane sulfonic acid
US10899705B2 (en) 2017-05-30 2021-01-26 Basf Se Process for the manufacturing of methane sulfonic acid
US20200190027A1 (en) * 2017-05-30 2020-06-18 Basf Se Process for the production of alkanesulfonic acids
US10894766B2 (en) 2017-05-30 2021-01-19 Basf Se Process for the production of alkanesulfonic acids
WO2019002447A1 (en) * 2017-06-30 2019-01-03 Grillo-Werke Aktiengesellschaft Regulator for the production of alkane sulfonic acids
US11247967B2 (en) 2018-02-07 2022-02-15 Basf Se Process for the manufacturing of alkanesulfonic acids
WO2019154681A1 (en) 2018-02-07 2019-08-15 Basf Se Process for the manufacturing of alkanesulfonic acids
WO2019158892A1 (en) 2018-02-14 2019-08-22 Arkema France Industrial process for continuously synthesizing alkane-sulphonic acid
WO2019158577A1 (en) 2018-02-16 2019-08-22 Grillo-Werke Ag Catalysts for the synthesis of alkanesulfonic acids
WO2019158576A1 (en) * 2018-02-16 2019-08-22 Grillo-Werke Ag Direct synthesis of alkane sulfonic acids from alkane and sulfur trioxide employing heterogeneous catalysis
US11542230B2 (en) 2018-02-16 2023-01-03 Basf Se Catalysts for the synthesis of alkanesulfonic acids
RU2694545C1 (en) * 2018-03-05 2019-07-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "ДАГЕСТАНСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ" Dimethyl disulfide peroxide (dimeslyate peroxide) and a method for production thereof
WO2020064573A1 (en) 2018-09-25 2020-04-02 Basf Se Catalysts for the synthesis of alkanesulfonic acids
WO2020064466A1 (en) 2018-09-25 2020-04-02 Basf Se Catalyst for the synthesis of alkanesulfonic acids
WO2020064515A1 (en) 2018-09-25 2020-04-02 Basf Se Cations as catalyst in the production of alkane sulfonic acids
WO2020126855A1 (en) 2018-12-21 2020-06-25 Basf Se Mixture comprising methanesulfonic acid and sulfuric acid
EP3712123A1 (en) * 2019-03-21 2020-09-23 Grillo-Werke AG Process for the preparation of isotope labelled alkane sulfonic acid
US11479522B2 (en) 2019-03-21 2022-10-25 Basf Se Method for the purification of alkanes
WO2020187894A1 (en) 2019-03-21 2020-09-24 Basf Se Method for the purification of alkanes
WO2021023582A1 (en) 2019-08-07 2021-02-11 Basf Se Recovery of water-free methanesulfonic acid from the bottom stream of a distillation column
CN114174257A (en) * 2019-08-07 2022-03-11 巴斯夫欧洲公司 Process for preparing alkanesulfonic acids
WO2021023583A1 (en) 2019-08-07 2021-02-11 Basf Se Process for the production of alkanesulfonic acids
CN114174257B (en) * 2019-08-07 2024-05-14 巴斯夫欧洲公司 Process for preparing alkanesulphonic acids
EP3782981A1 (en) 2019-08-20 2021-02-24 Basf Se Catalysts for the synthesis of alkanesulfonic acids
WO2021063730A1 (en) 2019-10-01 2021-04-08 Basf Se Process for manufacturing alkanesulfonic acids

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