BE643337A - - Google Patents
Info
- Publication number
- BE643337A BE643337A BE643337DA BE643337A BE 643337 A BE643337 A BE 643337A BE 643337D A BE643337D A BE 643337DA BE 643337 A BE643337 A BE 643337A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US258284A US3271273A (en) | 1963-02-13 | 1963-02-13 | Distillation process for recovering anhydrous hydrogen fluoride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE643337A true BE643337A (US06633600-20031014-M00021.png) | 1964-08-04 |
Family
ID=22979908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE643337D BE643337A (US06633600-20031014-M00021.png) | 1963-02-13 | 1964-02-04 |
Country Status (5)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4492613A (en) * | 1982-08-02 | 1985-01-08 | The B. F. Goodrich Company | Recovery of components of a binary azeotrope |
| US4980032A (en) * | 1988-08-12 | 1990-12-25 | Alameda Instruments, Inc. | Distillation method and apparatus for reprocessing sulfuric acid |
| US4936955A (en) * | 1988-08-12 | 1990-06-26 | Alameda Instruments, Inc. | Hydrofluoric acid reprocessing for semiconductor standards |
| US5061348A (en) * | 1988-08-12 | 1991-10-29 | Alameda Instruments | Sulfuric acid reprocessor with continuous purge of second distillation vessel |
| EP2247560B1 (en) * | 2008-02-21 | 2014-06-04 | E. I. du Pont de Nemours and Company | Processes for separation of 1,3,3,3-tetrafluoropropene from hydrogen fluoride by azeotropic distillation |
| CN112499590B (zh) * | 2020-11-26 | 2022-10-11 | 中国核电工程有限公司 | 生产无水氟化氢的工艺及装置 |
| CN112645285B (zh) * | 2020-11-26 | 2022-11-18 | 中国核电工程有限公司 | 生产无水氟化氢的工艺及装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2371341A (en) * | 1943-08-06 | 1945-03-13 | Phillips Petroleum Co | Recovery of hydrofluoric acid |
| US2414646A (en) * | 1944-06-24 | 1947-01-21 | Phillips Petroleum Co | Hydration of cyclic olefins |
| US2425752A (en) * | 1944-09-15 | 1947-08-19 | Phillips Petroleum Co | Separation of hydrogen fluoride from water and organic contaminants by distillation and decantation |
| US2445217A (en) * | 1946-04-19 | 1948-07-13 | Phillips Petroleum Co | Treatment of hydrogen fluoride solutions |
| US2498789A (en) * | 1946-05-20 | 1950-02-28 | Phillips Petroleum Co | Recovery of hydrogen fluoride |
| US2661319A (en) * | 1950-03-21 | 1953-12-01 | Standard Oil Co | Hydrogen fluoride purification |
-
0
- GB GB1054745D patent/GB1054745A/en active Active
-
1963
- 1963-02-13 US US258284A patent/US3271273A/en not_active Expired - Lifetime
-
1964
- 1964-02-04 BE BE643337D patent/BE643337A/xx unknown
- 1964-02-06 NL NL6400990A patent/NL6400990A/xx unknown
- 1964-02-13 DE DE19641467068 patent/DE1467068A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6400990A (US06633600-20031014-M00021.png) | 1964-08-14 |
| DE1467068A1 (de) | 1969-01-02 |
| GB1054745A (US06633600-20031014-M00021.png) | |
| US3271273A (en) | 1966-09-06 |
