CA1140280A - Procede pour l'elimination des fluorures des effluents les contenant - Google Patents
Procede pour l'elimination des fluorures des effluents les contenantInfo
- Publication number
- CA1140280A CA1140280A CA000353560A CA353560A CA1140280A CA 1140280 A CA1140280 A CA 1140280A CA 000353560 A CA000353560 A CA 000353560A CA 353560 A CA353560 A CA 353560A CA 1140280 A CA1140280 A CA 1140280A
- Authority
- CA
- Canada
- Prior art keywords
- solution
- cryolite
- fluoride
- effluent
- aluminate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 150000002222 fluorine compounds Chemical class 0.000 title claims abstract description 13
- 229910001610 cryolite Inorganic materials 0.000 claims abstract description 32
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 27
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 150000004645 aluminates Chemical class 0.000 claims abstract description 12
- 229920000867 polyelectrolyte Polymers 0.000 claims abstract description 12
- 238000005189 flocculation Methods 0.000 claims abstract description 9
- 230000016615 flocculation Effects 0.000 claims abstract description 9
- 239000002244 precipitate Substances 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims abstract description 8
- 229920006318 anionic polymer Polymers 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims abstract description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims abstract description 3
- 230000002378 acidificating effect Effects 0.000 claims abstract description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 18
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 18
- 239000010802 sludge Substances 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims 1
- 239000011734 sodium Substances 0.000 abstract description 7
- 229910052708 sodium Inorganic materials 0.000 abstract description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract description 4
- 241000928106 Alain Species 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 36
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 28
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 15
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 14
- 239000011737 fluorine Substances 0.000 description 14
- 229910052731 fluorine Inorganic materials 0.000 description 14
- 235000013024 sodium fluoride Nutrition 0.000 description 13
- 239000011775 sodium fluoride Substances 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 12
- 229910052782 aluminium Inorganic materials 0.000 description 12
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 238000010908 decantation Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910015400 FeC13 Inorganic materials 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241001237728 Precis Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 description 1
- TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 description 1
- 241000219422 Urtica Species 0.000 description 1
- 235000009108 Urtica dioica Nutrition 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000029219 regulation of pH Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000010414 supernatant solution Substances 0.000 description 1
- 229940116269 uric acid Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- 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
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/583—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing fluoride or fluorine compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Geology (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7914266 | 1979-06-05 | ||
| FR7914266A FR2458513A1 (fr) | 1979-06-05 | 1979-06-05 | Procede pour l'elimination des fluorures des effluents les contenant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1140280A true CA1140280A (fr) | 1983-01-25 |
Family
ID=9226208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000353560A Expired CA1140280A (fr) | 1979-06-05 | 1980-06-04 | Procede pour l'elimination des fluorures des effluents les contenant |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1140280A (OSRAM) |
| FR (1) | FR2458513A1 (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302522A (zh) * | 2019-11-04 | 2020-06-19 | 三峡大学 | 一种高效除污水中氟方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3129473A1 (de) * | 1981-07-25 | 1983-02-10 | Bayer Ag, 5090 Leverkusen | Verfahren zum reinigen fluoridhaltiger abwaesser |
| GB9025126D0 (en) * | 1990-11-19 | 1991-01-02 | Ici Plc | Treatment of dilute acidic solutions |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2058075A (en) * | 1934-06-09 | 1936-10-20 | Gaither Gant | Process for making martificial cryolite |
| CH372846A (de) * | 1957-04-01 | 1963-10-31 | Alusuisse | Verfahren zur Gewinnung von Natrium-Aluminium-Doppelfluoriden aus den bei der elektrolytischen Herstellung von Aluminium entweichenden HF-haltigen Ofenabgasen |
| FR1289635A (fr) * | 1961-02-24 | 1962-04-06 | Electro Chimie Soc D | Procédé de récupération du fluor |
| US3215493A (en) * | 1963-09-04 | 1965-11-02 | Electro Chimie Metal | Process of agglomerating fine crystals and cryolite product |
| CH509093A (de) * | 1969-03-12 | 1971-06-30 | Alusuisse | Verfahren zum Entfernen F-haltiger Verunreinigungen aus luftverdünnten, sauren Abgasen |
| SU415955A1 (ru) * | 1971-12-13 | 1979-03-05 | Иркутский филиал Всесоюзного научно-исследовательского и проектного института алюминиевой, магниевой и электродной промышленности | Способ получени криолита |
-
1979
- 1979-06-05 FR FR7914266A patent/FR2458513A1/fr active Granted
-
1980
- 1980-06-04 CA CA000353560A patent/CA1140280A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302522A (zh) * | 2019-11-04 | 2020-06-19 | 三峡大学 | 一种高效除污水中氟方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2458513A1 (fr) | 1981-01-02 |
| FR2458513B1 (OSRAM) | 1982-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |