ZA200508929B - Process - Google Patents
Process Download PDFInfo
- Publication number
- ZA200508929B ZA200508929B ZA200508929A ZA200508929A ZA200508929B ZA 200508929 B ZA200508929 B ZA 200508929B ZA 200508929 A ZA200508929 A ZA 200508929A ZA 200508929 A ZA200508929 A ZA 200508929A ZA 200508929 B ZA200508929 B ZA 200508929B
- Authority
- ZA
- South Africa
- Prior art keywords
- stream
- hydrogen fluoride
- process according
- impurities
- phosphorous
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 51
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 66
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims description 59
- 239000012535 impurity Substances 0.000 claims description 34
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000004821 distillation Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 17
- 239000001117 sulphuric acid Substances 0.000 claims description 17
- 235000011149 sulphuric acid Nutrition 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000011260 aqueous acid Substances 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 6
- 238000010923 batch production Methods 0.000 claims description 2
- 239000010436 fluorite Substances 0.000 description 18
- 239000006096 absorbing agent Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 238000005201 scrubbing Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- -1 but not limited to Chemical compound 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- C01B7/196—Separation; Purification by distillation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0427968.3A GB0427968D0 (en) | 2004-12-21 | 2004-12-21 | Process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200508929B true ZA200508929B (en) | 2006-07-26 |
Family
ID=34112957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200508929A ZA200508929B (en) | 2004-12-21 | 2005-11-03 | Process |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20060133984A1 (zh) |
| EP (1) | EP1674425A1 (zh) |
| CN (1) | CN1792768B (zh) |
| GB (1) | GB0427968D0 (zh) |
| MX (1) | MXPA05013626A (zh) |
| ZA (1) | ZA200508929B (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607708B (zh) * | 2020-12-22 | 2021-10-08 | 四川大学 | 一种氟化氢气体处理工艺 |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE632837A (zh) * | 1962-06-04 | 1963-10-21 | ||
| US3167391A (en) * | 1963-07-18 | 1965-01-26 | Harshaw Chem Corp | Purification of anhydrous hydrogen fluoride |
| US3326634A (en) * | 1963-12-04 | 1967-06-20 | Porter J Cheairs | Processes for recovering hydrogen fluoride |
| US3725536A (en) * | 1968-02-26 | 1973-04-03 | R Gentili | Method of the continuous production of hydrofluoric acid |
| US3553938A (en) * | 1968-03-21 | 1971-01-12 | Onoda Cement Co Ltd | Method for separating and recovering hydrogen fluoride |
| US3870786A (en) * | 1970-11-12 | 1975-03-11 | Gustave E Kidde | Removal of phosphate compounds from fluoride containing solutions |
| US3687622A (en) * | 1970-11-30 | 1972-08-29 | Du Pont | High pressure purification of hydrogen fluoride |
| DE2209960C3 (de) * | 1972-03-02 | 1979-10-11 | Bayer Ag, 5090 Leverkusen | Verfahren zur Aufarbeitung von Fluorwasserstoff-haltigen Rohgasen der Flußsäureherstellung |
| DE2601654A1 (de) * | 1976-01-17 | 1977-07-21 | Bayer Ag | Verfahren zur herstellung von flusssaeure aus phosphathaltigem flusspat |
| US4163045A (en) * | 1976-12-27 | 1979-07-31 | Kemira Oy | Process for producing hydrogen fluoride from an aqueous solution of hydrogen fluoride and sulfuric acid |
| US4233281A (en) * | 1978-06-09 | 1980-11-11 | Occidental Chemical Company | Recovery of hydrogen fluoride from metallic fluoride salts |
| DE2928368A1 (de) * | 1979-07-13 | 1981-02-05 | Metallgesellschaft Ag | Verfahren zur herstellung von fluorwasserstoff |
| US4394365A (en) * | 1981-01-05 | 1983-07-19 | Alcan International Limited | Method for curtailing phosphorous impurity in the production of hydrogen fluoride |
| US4389293A (en) * | 1982-01-04 | 1983-06-21 | Allied Corporation | Process for the recovery of anhydrous hydrogen fluoride from aqueous solutions of fluosilicic acid and hydrogen fluoride |
| US4491570A (en) * | 1984-05-03 | 1985-01-01 | Pennwalt Corporation | Removal of arsenic from hydrogen fluoride |
| US4668497A (en) * | 1984-12-25 | 1987-05-26 | Hashimoto Chemical Industries Co., Ltd. | Process for purifying hydrogen fluoride |
| US5032271A (en) * | 1987-06-15 | 1991-07-16 | University Of Alabama At Birmingham/Research Foundation | Reversible mechanochemical engines comprised of bioelastomers capable of modulable inverse temperature transitions for the interconversion of chemical and mechanical work |
| US4684587A (en) * | 1986-12-01 | 1987-08-04 | Gte Government Systems Corporation | Electrochemical cell with disc activator |
| AT395312B (de) * | 1987-06-16 | 1992-11-25 | Andritz Ag Maschf | Verfahren zur gewinnung bzw. rueckgewinnung von saeure aus metallhaltigen loesungen dieser saeure |
| US4960580A (en) * | 1989-10-31 | 1990-10-02 | E. I. Du Pont De Nemours And Company | Process for purifying hydrogen fluoride |
| DE4031967C1 (zh) * | 1990-10-09 | 1992-05-27 | Bayer Ag, 5090 Leverkusen, De | |
| US5531975A (en) * | 1990-12-31 | 1996-07-02 | Phosphate Engineering And Construction Co., Inc. | Process for the production of phosphoric acid and calcium fluoride |
| CA2068068A1 (en) * | 1991-08-30 | 1993-03-01 | James H. Mestepey | Recovery of anhydrous hydrogen fluoride from depleted uranium |
| GB9224594D0 (en) * | 1991-12-10 | 1993-01-13 | Ici Plc | Water separation process |
| CA2137635C (en) * | 1994-12-08 | 2007-09-04 | Brian C. Olson | Reaction of uranium fluorides with mineral acids to recover hydrogen fluoride |
| DE69611307T2 (de) * | 1995-10-10 | 2001-04-26 | Imperial Chemical Industries Plc, London | Verfahren zur rückgewinnung von wasserstofffluorid |
| US5752158A (en) * | 1996-04-19 | 1998-05-12 | M4 Environmental L.P. | Thermal process for the conversion of uranium hexafluoride |
| GB9707176D0 (en) * | 1997-04-09 | 1997-05-28 | Ici Plc | Hydrogen fluoride recovery process |
| DE19905798A1 (de) * | 1999-02-12 | 2000-08-17 | Bayer Ag | Verfahren zum Herstellen reiner Flußsäure |
| US20010022957A1 (en) * | 1999-12-30 | 2001-09-20 | Subbanna Somanahalli Naranappa | Purification of hydrogen fluoride |
| JP3877270B2 (ja) * | 2000-07-12 | 2007-02-07 | アルパイン株式会社 | 音声特徴量抽出装置 |
| TWI249508B (en) * | 2002-11-28 | 2006-02-21 | Sasakura Eng Co Ltd | Hydrofluoric acid wastewater treatment method and device |
-
2004
- 2004-12-21 GB GBGB0427968.3A patent/GB0427968D0/en not_active Ceased
-
2005
- 2005-10-21 US US11/255,744 patent/US20060133984A1/en not_active Abandoned
- 2005-10-28 CN CN2005101188339A patent/CN1792768B/zh active Active
- 2005-11-03 ZA ZA200508929A patent/ZA200508929B/en unknown
- 2005-11-24 EP EP05111258A patent/EP1674425A1/en not_active Withdrawn
- 2005-12-14 MX MXPA05013626A patent/MXPA05013626A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB0427968D0 (en) | 2005-01-26 |
| EP1674425A1 (en) | 2006-06-28 |
| MXPA05013626A (es) | 2006-09-20 |
| CN1792768A (zh) | 2006-06-28 |
| US20060133984A1 (en) | 2006-06-22 |
| CN1792768B (zh) | 2011-07-06 |
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