GB1107232A - Process for producing high purity aluminium nitrate solutions - Google Patents
Process for producing high purity aluminium nitrate solutionsInfo
- Publication number
- GB1107232A GB1107232A GB4188766A GB4188766A GB1107232A GB 1107232 A GB1107232 A GB 1107232A GB 4188766 A GB4188766 A GB 4188766A GB 4188766 A GB4188766 A GB 4188766A GB 1107232 A GB1107232 A GB 1107232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium nitrate
- solution
- fe2o3
- al2o3
- heating
- 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
- JLDSOYXADOWAKB-UHFFFAOYSA-N aluminium nitrate Chemical compound [Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O JLDSOYXADOWAKB-UHFFFAOYSA-N 0.000 title abstract 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 5
- 229910052593 corundum Inorganic materials 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 3
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 2
- 229910017604 nitric acid Inorganic materials 0.000 abstract 2
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- 229910001570 bauxite Inorganic materials 0.000 abstract 1
- 239000004927 clay Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
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
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
- C01F7/24—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts with nitric acid or nitrogen oxides
-
- 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
- C01F7/66—Nitrates, with or without other cations besides aluminium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/18—Electrolytes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compounds Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A substantially iron-free solution of aluminium nitrate is produced by heating at 160-220 DEG C. an aluminous ore with a weight ratio of Al2O3 to Fe2O3 of between above 10 : 1 and 20 : 1 with an amount of 15% to 30% aqueous nitric acid less than that theoretically required to convert all the alumina in the ore to aluminium nitrate. The heating is carried out until the weight ratio of Al2O3 to Fe2O3 in the solution is at least 2,000 : 1 and the iron-containing precipitate is then separated from the aluminium nitrate solution. Specified aluminous ores are bauxite and clay. The heating may be carried out under an autogenous pressure of 5.6 to 17.5 kg./cm.2, for 1/2 to 2 hours with between 60% and 85% of the theoretical amount of nitric acid. After obtaining the purified solution, it may be concentrated to produce Al(NO3)3.9H2O crystals containing an Al2O3 to Fe2O3 weight ratio of at least 5,000 to one, which may be used to produce cellgrade alumina.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48937965A | 1965-09-22 | 1965-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1107232A true GB1107232A (en) | 1968-03-27 |
Family
ID=23943613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4188766A Expired GB1107232A (en) | 1965-09-22 | 1966-09-20 | Process for producing high purity aluminium nitrate solutions |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1592066A1 (en) |
| ES (1) | ES331442A1 (en) |
| GB (1) | GB1107232A (en) |
| NL (1) | NL6613378A (en) |
-
1966
- 1966-09-20 GB GB4188766A patent/GB1107232A/en not_active Expired
- 1966-09-21 DE DE19661592066 patent/DE1592066A1/en active Pending
- 1966-09-21 ES ES0331442A patent/ES331442A1/en not_active Expired
- 1966-09-22 NL NL6613378A patent/NL6613378A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1592066A1 (en) | 1970-12-03 |
| NL6613378A (en) | 1967-03-23 |
| ES331442A1 (en) | 1967-07-01 |
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