ZA765894B - Purifying hydrofluoric acid - Google Patents
Purifying hydrofluoric acidInfo
- Publication number
- ZA765894B ZA765894B ZA765894A ZA765894A ZA765894B ZA 765894 B ZA765894 B ZA 765894B ZA 765894 A ZA765894 A ZA 765894A ZA 765894 A ZA765894 A ZA 765894A ZA 765894 B ZA765894 B ZA 765894B
- Authority
- ZA
- South Africa
- Prior art keywords
- hydrofluoric acid
- purifying hydrofluoric
- purifying
- acid
- hydrofluoric
- Prior art date
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
- C01B7/195—Separation; Purification
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
-
- 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)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2543965A DE2543965C3 (en) | 1975-10-02 | 1975-10-02 | Process for the purification of reaction gases in hydrofluoric acid production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA765894B true ZA765894B (en) | 1977-09-28 |
Family
ID=5958042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA765894A ZA765894B (en) | 1975-10-02 | 1976-10-01 | Purifying hydrofluoric acid |
Country Status (10)
| Country | Link |
|---|---|
| BE (1) | BE846827A (en) |
| BR (1) | BR7606566A (en) |
| CS (1) | CS196325B2 (en) |
| DE (1) | DE2543965C3 (en) |
| ES (1) | ES452056A1 (en) |
| FR (1) | FR2326378A1 (en) |
| GB (1) | GB1567778A (en) |
| IT (1) | IT1066315B (en) |
| NL (1) | NL7610844A (en) |
| ZA (1) | ZA765894B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5032371A (en) * | 1989-02-27 | 1991-07-16 | Mallinckrodt Specialty Chemicals Co. | Process for the continuous recovery of hydrogen fluoride gas |
| CN112010263B (en) * | 2020-08-31 | 2022-08-02 | 北京化工大学 | Production device and production method of electronic-grade hydrofluoric acid |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3725536A (en) | 1968-02-26 | 1973-04-03 | R Gentili | Method of the continuous production of hydrofluoric acid |
| DE2209960C3 (en) | 1972-03-02 | 1979-10-11 | Bayer Ag, 5090 Leverkusen | Process for the processing of raw gases containing hydrogen fluoride from hydrofluoric acid production |
-
1975
- 1975-10-02 DE DE2543965A patent/DE2543965C3/en not_active Expired
-
1976
- 1976-09-29 IT IT51482/76A patent/IT1066315B/en active
- 1976-09-30 CS CS766332A patent/CS196325B2/en unknown
- 1976-09-30 NL NL7610844A patent/NL7610844A/en not_active Application Discontinuation
- 1976-10-01 ES ES452056A patent/ES452056A1/en not_active Expired
- 1976-10-01 FR FR7629649A patent/FR2326378A1/en active Granted
- 1976-10-01 ZA ZA765894A patent/ZA765894B/en unknown
- 1976-10-01 BR BR7606566A patent/BR7606566A/en unknown
- 1976-10-01 GB GB40799/76A patent/GB1567778A/en not_active Expired
- 1976-10-01 BE BE2055345A patent/BE846827A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1567778A (en) | 1980-05-21 |
| NL7610844A (en) | 1977-04-05 |
| BE846827A (en) | 1977-04-01 |
| IT1066315B (en) | 1985-03-04 |
| FR2326378A1 (en) | 1977-04-29 |
| DE2543965B2 (en) | 1980-10-16 |
| DE2543965C3 (en) | 1981-07-09 |
| DE2543965A1 (en) | 1977-04-07 |
| FR2326378B1 (en) | 1980-05-30 |
| CS196325B2 (en) | 1980-03-31 |
| ES452056A1 (en) | 1977-10-01 |
| BR7606566A (en) | 1977-05-31 |
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