ES452716A1 - Chemical process - Google Patents
Chemical processInfo
- Publication number
- ES452716A1 ES452716A1 ES452716A ES452716A ES452716A1 ES 452716 A1 ES452716 A1 ES 452716A1 ES 452716 A ES452716 A ES 452716A ES 452716 A ES452716 A ES 452716A ES 452716 A1 ES452716 A1 ES 452716A1
- Authority
- ES
- Spain
- Prior art keywords
- crystallizer
- temperature
- solution
- ordinates
- percentage
- 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
Classifications
-
- 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
- C01F7/68—Aluminium compounds containing sulfur
- C01F7/74—Sulfates
- C01F7/746—After-treatment, e.g. dehydration or stabilisation
-
- 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
- C01F7/68—Aluminium compounds containing sulfur
- C01F7/74—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Cosmetics (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Precipitation procedure of an aluminum sulfate, of formula Al2 (SO4) 3. 0.5H2SO4. 11 to 12 H2O, from a hot solution resulting from the attack of an aluminous material by a sulfuric solution and the elimination of the attack residue, characterized in that the solution is introduced into the first of at least two crystallizers at a temperature of less equal to that of this first crystallizer, its composition being such that, brought to the temperature of the crystallizer, it is in a state of supersaturation and that the figurative point of its composition in a diagram that shows the percentage in abscissae; in free H2SO4 and in ordinates the percentage in Al2O3 is inside a triangle, one of whose vertices is the representative point of the precipitated sulfate and whose other vertices have as abscissa 39 and 56% and as ordinates 1 and 0.5%, because this first crystallizer is maintained at a temperature at most equal to 80ºC, because the suspension is circulated from one crystallizer to the other, each crystallizer being kept at a lower temperature than the previous one, and the temperature of the last crystallizer may be as low as 15ºC, the residence time of the suspension in each crystallizer being sufficient to obtain an Al2O3 concentration, in the form of aluminum sulfate in solution, so much closer to the static equilibrium at the temperature of the crystallizer considering the lower this temperature, and finally because the crystals of the solution are separated. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7532944A FR2329591A1 (en) | 1975-10-28 | 1975-10-28 | PROCESS FOR EXTRACTING AN ALUMINUM SULPHATE FROM AN IMPURE SOLUTION IN CONTAINER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES452716A1 true ES452716A1 (en) | 1977-10-01 |
Family
ID=9161743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES452716A Expired ES452716A1 (en) | 1975-10-28 | 1976-10-26 | Chemical process |
Country Status (31)
| Country | Link |
|---|---|
| JP (1) | JPS5253796A (en) |
| AR (1) | AR208636A1 (en) |
| AT (1) | AT358527B (en) |
| BE (1) | BE847646A (en) |
| BG (1) | BG39464A3 (en) |
| BR (1) | BR7607206A (en) |
| CA (1) | CA1089187A (en) |
| CH (1) | CH619430A5 (en) |
| DD (1) | DD127633A5 (en) |
| DE (1) | DE2648695C2 (en) |
| DK (1) | DK481276A (en) |
| EG (1) | EG12880A (en) |
| ES (1) | ES452716A1 (en) |
| FR (1) | FR2329591A1 (en) |
| GB (1) | GB1537904A (en) |
| HU (1) | HU176594B (en) |
| IL (1) | IL50765A (en) |
| IN (1) | IN145576B (en) |
| IS (1) | IS2351A7 (en) |
| IT (1) | IT1077077B (en) |
| LU (1) | LU76069A1 (en) |
| MX (1) | MX143152A (en) |
| NL (1) | NL187973C (en) |
| NO (1) | NO145912C (en) |
| NZ (1) | NZ182396A (en) |
| OA (1) | OA05463A (en) |
| PH (1) | PH15167A (en) |
| PL (1) | PL106568B1 (en) |
| RO (1) | RO72144A (en) |
| SE (1) | SE422046B (en) |
| ZA (1) | ZA766425B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ300676B6 (en) * | 2006-04-18 | 2009-07-15 | Výzkumný ústav anorganické chemie, a. s. | Method of removing potash alum when producing pickle alum solution |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1592156C3 (en) * | 1966-04-04 | 1978-06-29 | Pechiney Compagnie De Produits Chimiques Et Electrometallurgiques, Paris | Process for the extraction of aluminum sulphate and accompanying substances from aluminum-containing ores |
-
1975
- 1975-10-28 FR FR7532944A patent/FR2329591A1/en active Granted
-
1976
- 1976-09-29 IN IN1802/CAL/76A patent/IN145576B/en unknown
- 1976-10-14 NL NLAANVRAGE7611384,A patent/NL187973C/en not_active IP Right Cessation
- 1976-10-14 DD DD195278A patent/DD127633A5/xx unknown
- 1976-10-21 CA CA264,018A patent/CA1089187A/en not_active Expired
- 1976-10-22 IT IT28603/76A patent/IT1077077B/en active
- 1976-10-22 MX MX166758A patent/MX143152A/en unknown
- 1976-10-22 NZ NZ182396A patent/NZ182396A/en unknown
- 1976-10-23 EG EG647/76A patent/EG12880A/en active
- 1976-10-25 OA OA55964A patent/OA05463A/en unknown
- 1976-10-25 CH CH1344276A patent/CH619430A5/en not_active IP Right Cessation
- 1976-10-25 DK DK481276A patent/DK481276A/en unknown
- 1976-10-26 RO RO7688231A patent/RO72144A/en unknown
- 1976-10-26 BG BG7634534A patent/BG39464A3/en unknown
- 1976-10-26 ES ES452716A patent/ES452716A1/en not_active Expired
- 1976-10-26 IS IS2351A patent/IS2351A7/en unknown
- 1976-10-26 NO NO763655A patent/NO145912C/en unknown
- 1976-10-26 BE BE171797A patent/BE847646A/en not_active IP Right Cessation
- 1976-10-26 IL IL50765A patent/IL50765A/en unknown
- 1976-10-26 LU LU76069A patent/LU76069A1/xx unknown
- 1976-10-27 GB GB44670/76A patent/GB1537904A/en not_active Expired
- 1976-10-27 SE SE7611962A patent/SE422046B/en not_active IP Right Cessation
- 1976-10-27 AT AT797976A patent/AT358527B/en not_active IP Right Cessation
- 1976-10-27 BR BR7607206A patent/BR7607206A/en unknown
- 1976-10-27 AR AR265237A patent/AR208636A1/en active
- 1976-10-27 HU HU76PE1001A patent/HU176594B/en not_active IP Right Cessation
- 1976-10-27 PH PH19083A patent/PH15167A/en unknown
- 1976-10-27 DE DE2648695A patent/DE2648695C2/en not_active Expired
- 1976-10-27 ZA ZA766425A patent/ZA766425B/en unknown
- 1976-10-27 JP JP51128408A patent/JPS5253796A/en active Granted
- 1976-10-28 PL PL1976193329A patent/PL106568B1/en unknown
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