BR8803528A - Processo para a preparacao de acido fluoridrico e anidrita - Google Patents
Processo para a preparacao de acido fluoridrico e anidritaInfo
- Publication number
- BR8803528A BR8803528A BR8803528A BR8803528A BR8803528A BR 8803528 A BR8803528 A BR 8803528A BR 8803528 A BR8803528 A BR 8803528A BR 8803528 A BR8803528 A BR 8803528A BR 8803528 A BR8803528 A BR 8803528A
- Authority
- BR
- Brazil
- Prior art keywords
- anhydrite
- preparation
- fluoridric
- acid
- fluoridric acid
- 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
- C01B7/192—Preparation from fluorspar
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Air Supply (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873723197 DE3723197A1 (de) | 1987-07-14 | 1987-07-14 | Verfahren zur herstellung von flusssaeure und anhydrit |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8803528A true BR8803528A (pt) | 1989-02-08 |
Family
ID=6331519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8803528A BR8803528A (pt) | 1987-07-14 | 1988-07-13 | Processo para a preparacao de acido fluoridrico e anidrita |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0299306B1 (pt) |
JP (1) | JPS6437403A (pt) |
BR (1) | BR8803528A (pt) |
DE (2) | DE3723197A1 (pt) |
ES (1) | ES2029496T3 (pt) |
GR (1) | GR3004306T3 (pt) |
ZA (1) | ZA885053B (pt) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10031562A1 (de) * | 2000-06-28 | 2002-01-10 | Bayer Ag | Verfahren zur Herstellung von Fluorwasserstoff in einem Drehrohrofen |
JP4599673B2 (ja) * | 2000-07-10 | 2010-12-15 | ダイキン工業株式会社 | フッ化水素製造装置および製造方法 |
CN101786607B (zh) * | 2010-02-11 | 2011-08-17 | 浙江中宁硅业有限公司 | 利用生产硅烷过程中生成的副产物制备氟化氢的方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1316980A (fr) * | 1961-04-27 | 1963-02-01 | Allied Chem | Procédé de fabrication de l'acide fluorhydrique par l'action de l'acide sulfurique sur le spath fluor |
US3719747A (en) * | 1971-03-04 | 1973-03-06 | Stauffer Chemical Co | Hydrothermal process for making hydrogen fluoride |
CH617641A5 (en) * | 1975-04-18 | 1980-06-13 | List Heinz | Process for preparing hydrofluoric acid |
AU513116B2 (en) * | 1978-11-24 | 1980-11-13 | Thagard, George F. Jr. | Fluid-wall reactors |
-
1987
- 1987-07-14 DE DE19873723197 patent/DE3723197A1/de active Granted
-
1988
- 1988-07-02 DE DE8888110597T patent/DE3868737D1/de not_active Expired - Lifetime
- 1988-07-02 EP EP88110597A patent/EP0299306B1/de not_active Expired - Lifetime
- 1988-07-02 ES ES198888110597T patent/ES2029496T3/es not_active Expired - Lifetime
- 1988-07-07 JP JP63167902A patent/JPS6437403A/ja active Pending
- 1988-07-13 ZA ZA885053A patent/ZA885053B/xx unknown
- 1988-07-13 BR BR8803528A patent/BR8803528A/pt unknown
-
1992
- 1992-04-08 GR GR920400668T patent/GR3004306T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
EP0299306A3 (en) | 1989-11-23 |
GR3004306T3 (pt) | 1993-03-31 |
EP0299306B1 (de) | 1992-03-04 |
JPS6437403A (en) | 1989-02-08 |
ES2029496T3 (es) | 1992-08-16 |
DE3723197A1 (de) | 1989-01-26 |
DE3868737D1 (de) | 1992-04-09 |
EP0299306A2 (de) | 1989-01-18 |
ZA885053B (en) | 1989-04-26 |
DE3723197C2 (pt) | 1989-05-03 |
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