IN167941B - - Google Patents
Info
- Publication number
- IN167941B IN167941B IN921/CAL/87A IN921CA1987A IN167941B IN 167941 B IN167941 B IN 167941B IN 921CA1987 A IN921CA1987 A IN 921CA1987A IN 167941 B IN167941 B IN 167941B
- Authority
- IN
- India
Links
Classifications
-
- 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
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/16—Vacuum
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/939,200 US4938846A (en) | 1986-12-08 | 1986-12-08 | Preparation of anhydrous alkanesulfonic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN167941B true IN167941B (ru) | 1991-01-12 |
Family
ID=25472730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN921/CAL/87A IN167941B (ru) | 1986-12-08 | 1987-11-24 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4938846A (ru) |
| EP (1) | EP0270953B1 (ru) |
| JP (1) | JPH0796542B2 (ru) |
| AR (1) | AR243866A1 (ru) |
| AT (1) | ATE56204T1 (ru) |
| CA (1) | CA1291161C (ru) |
| DE (1) | DE3764781D1 (ru) |
| DK (1) | DK641187A (ru) |
| ES (1) | ES2017696B3 (ru) |
| GR (1) | GR3000752T3 (ru) |
| IN (1) | IN167941B (ru) |
| MX (1) | MX165928B (ru) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5583253A (en) * | 1991-03-27 | 1996-12-10 | Henderson; Phyllis A. | Method of preparing purified alkanesulfonic acid |
| US5449819A (en) * | 1994-06-06 | 1995-09-12 | Merck & Co., Inc. | Process for removing waste pox, alendronate and its by products |
| US5589691A (en) * | 1994-06-06 | 1996-12-31 | Merck & Co., Inc. | Process for recovery and recycle of methanesulfonic acid and phosphorous acid |
| FR2748024B1 (fr) * | 1996-04-24 | 1998-06-05 | Atochem Elf Sa | Procede de purification d'un chlorure d'alcanesulfonyle et de l'acide acanesulfonique correspondant |
| US5873981A (en) * | 1996-12-26 | 1999-02-23 | The Dow Chemical Company | Recovery of anhydrous acids |
| WO2007096711A2 (en) | 2005-12-12 | 2007-08-30 | Vitech International, Inc. | Multipurpose, non-corrosive cleaning compositions and methods of use |
| DE102007020697A1 (de) * | 2007-05-03 | 2008-11-06 | Clariant International Ltd. | Verfahren zur Isolierung konzentrierter Paraffinsulfonsäuren |
| US9967619B2 (en) * | 2014-12-01 | 2018-05-08 | Google Llc | System and method for associating search queries with remote content display |
| US10577312B2 (en) | 2015-11-10 | 2020-03-03 | Basf Se | Process for purifying alkanesulfonic acids |
| MY198293A (en) | 2015-11-10 | 2023-08-21 | Basf Se | Method of reprocessing alkanesulfonic acid |
| TW201841881A (zh) | 2017-04-18 | 2018-12-01 | 德商巴斯夫歐洲公司 | 純化烷烴磺酸酐的方法及使用純化的烷烴磺酸酐製造烷烴磺酸的方法 |
| ES2899210T3 (es) | 2017-05-30 | 2022-03-10 | Basf Se | Procedimiento para la fabricación de ácido metanosulfónico |
| EP4010313B1 (en) * | 2019-08-07 | 2023-09-06 | Basf Se | Recovery of water-free methanesulfonic acid from the bottom stream of a distillation column |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2523490A (en) * | 1947-01-25 | 1950-09-26 | Standard Oil Co | Recovery of lower alkanoic acids from sulfonation reaction products |
| US2518639A (en) * | 1948-11-19 | 1950-08-15 | Standard Oil Co | Purifying sulfonic acids |
| US2711388A (en) * | 1949-08-25 | 1955-06-21 | Exxon Research Engineering Co | Concentration of aqueous acids by flash distillation |
| US3509206A (en) * | 1967-03-01 | 1970-04-28 | Ppg Industries Inc | Alkanesulfonic acid preparation |
| DE2451157C3 (de) * | 1974-10-28 | 1983-05-19 | Aluminium Norf Gmbh, 4040 Neuss | Verfahren zum Reinigen von beim Betriebe von Walzgerüsten in großen Mengen anfallender Abluft |
| US4035242A (en) * | 1975-09-29 | 1977-07-12 | Ppg Industries, Inc. | Distillative purification of alkane sulfonic acids |
| DE3203440A1 (de) * | 1982-02-02 | 1983-08-11 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur trennung von gemischen aus paraffin bzw. paraffinen mit 6 bis 14 c-atomen und alkohol bzw. alkoholen mit 4 bis 8 c-atomen |
| US4450047A (en) * | 1983-01-28 | 1984-05-22 | Penwalt Corporation | Process for recovering anhydrous alkanesulfonic acids by reduced pressure, falling film evaporation |
-
1986
- 1986-12-08 US US06/939,200 patent/US4938846A/en not_active Expired - Lifetime
-
1987
- 1987-11-24 IN IN921/CAL/87A patent/IN167941B/en unknown
- 1987-11-27 ES ES87117575T patent/ES2017696B3/es not_active Expired - Lifetime
- 1987-11-27 AT AT87117575T patent/ATE56204T1/de not_active IP Right Cessation
- 1987-11-27 DE DE8787117575T patent/DE3764781D1/de not_active Expired - Fee Related
- 1987-11-27 EP EP87117575A patent/EP0270953B1/en not_active Expired - Lifetime
- 1987-11-30 CA CA000553117A patent/CA1291161C/en not_active Expired - Lifetime
- 1987-12-03 JP JP62304685A patent/JPH0796542B2/ja not_active Expired - Lifetime
- 1987-12-07 DK DK641187A patent/DK641187A/da not_active Application Discontinuation
- 1987-12-07 MX MX009652A patent/MX165928B/es unknown
- 1987-12-07 AR AR87309516A patent/AR243866A1/es active
-
1990
- 1990-09-06 GR GR90400297T patent/GR3000752T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3764781D1 (de) | 1990-10-11 |
| GR3000752T3 (en) | 1991-10-10 |
| DK641187A (da) | 1988-06-09 |
| MX165928B (es) | 1992-12-10 |
| ES2017696B3 (es) | 1991-03-01 |
| AR243866A1 (es) | 1993-09-30 |
| JPS63198655A (ja) | 1988-08-17 |
| EP0270953A1 (en) | 1988-06-15 |
| EP0270953B1 (en) | 1990-09-05 |
| JPH0796542B2 (ja) | 1995-10-18 |
| CA1291161C (en) | 1991-10-22 |
| US4938846A (en) | 1990-07-03 |
| ATE56204T1 (de) | 1990-09-15 |
| DK641187D0 (da) | 1987-12-07 |