PL141750B1 - Method of obtaining hydrogen fluoride from silicofluoric acid - Google Patents
Method of obtaining hydrogen fluoride from silicofluoric acid Download PDFInfo
- Publication number
- PL141750B1 PL141750B1 PL24752684A PL24752684A PL141750B1 PL 141750 B1 PL141750 B1 PL 141750B1 PL 24752684 A PL24752684 A PL 24752684A PL 24752684 A PL24752684 A PL 24752684A PL 141750 B1 PL141750 B1 PL 141750B1
- Authority
- PL
- Poland
- Prior art keywords
- acid
- hydrogen fluoride
- sulfuric acid
- distillation
- temperature
- Prior art date
Links
- 239000002253 acid Substances 0.000 title claims description 46
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 title claims description 37
- 238000000034 method Methods 0.000 title claims description 33
- 229910000040 hydrogen fluoride Inorganic materials 0.000 title claims description 30
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 64
- 238000000354 decomposition reaction Methods 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000003795 desorption Methods 0.000 claims description 13
- 238000004821 distillation Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 238000010926 purge Methods 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 150000002222 fluorine compounds Chemical class 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 150000007513 acids Chemical class 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229910003638 H2SiF6 Inorganic materials 0.000 description 4
- 229910004014 SiF4 Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- ZEFWRWWINDLIIV-UHFFFAOYSA-N tetrafluorosilane;dihydrofluoride Chemical compound F.F.F[Si](F)(F)F ZEFWRWWINDLIIV-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- BHTYXHCGQDYPIO-UHFFFAOYSA-N [Si].O[Si](O)(O)O Chemical compound [Si].O[Si](O)(O)O BHTYXHCGQDYPIO-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- FLWCIIGMVIPYOY-UHFFFAOYSA-N fluoro(trihydroxy)silane Chemical compound O[Si](O)(O)F FLWCIIGMVIPYOY-UHFFFAOYSA-N 0.000 description 1
- 229940104869 fluorosilicate Drugs 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910009112 xH2O Inorganic materials 0.000 description 1
Landscapes
- Silicon Compounds (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL24752684A PL141750B1 (en) | 1984-05-04 | 1984-05-04 | Method of obtaining hydrogen fluoride from silicofluoric acid |
| MA20644A MA20420A1 (fr) | 1984-05-04 | 1985-04-25 | Methode de production du fluorure d'hydrogene de l'acide fluorosilcique |
| CS853204A CS268163B2 (cs) | 1984-05-04 | 1985-05-04 | Způsob výroby fluorovodíku z kyseliny fluorokřemičité |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL24752684A PL141750B1 (en) | 1984-05-04 | 1984-05-04 | Method of obtaining hydrogen fluoride from silicofluoric acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL247526A1 PL247526A1 (en) | 1985-11-05 |
| PL141750B1 true PL141750B1 (en) | 1987-08-31 |
Family
ID=20021656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL24752684A PL141750B1 (en) | 1984-05-04 | 1984-05-04 | Method of obtaining hydrogen fluoride from silicofluoric acid |
Country Status (3)
| Country | Link |
|---|---|
| CS (1) | CS268163B2 (cs) |
| MA (1) | MA20420A1 (cs) |
| PL (1) | PL141750B1 (cs) |
-
1984
- 1984-05-04 PL PL24752684A patent/PL141750B1/pl unknown
-
1985
- 1985-04-25 MA MA20644A patent/MA20420A1/fr unknown
- 1985-05-04 CS CS853204A patent/CS268163B2/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS320485A2 (en) | 1988-06-15 |
| CS268163B2 (cs) | 1990-03-14 |
| MA20420A1 (fr) | 1985-12-31 |
| PL247526A1 (en) | 1985-11-05 |
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