GB1257521A - - Google Patents
Info
- Publication number
- GB1257521A GB1257521A GB1257521DA GB1257521A GB 1257521 A GB1257521 A GB 1257521A GB 1257521D A GB1257521D A GB 1257521DA GB 1257521 A GB1257521 A GB 1257521A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- clay
- aluminium nitrate
- aluminium
- cooling
- 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
- C01F7/66—Nitrates, with or without other cations besides aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Compounds Of Iron (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
1,257,521. Aqueous Al(NO 3 ) 3 . ALLIED CHEMICAL CORP. 10 Jan., 1969 [6 Feb., 1968], No. 1676/69. Heading C1A. Aluminium nitrate solutions of reduced iron content are produced from iron-containing clays by (a) digesting a clay at 140-220‹ C. under autogenous pressure, with nitric acid having a concentration of at least 10% by wt. in an amount at most 90% of that stoichiometrically required to convert all the aluminium in the clay to aluminium nitrate, the clay containing at least about 5% Fe by wt. (as Fe 2 O 3 per 100 parts Al 2 O 3 in the clay) to give a 10- 60% Al(NO 3 ) 3 solution and (b) cooling said solution, under autogenous pressure, at an average rate not greater than 25‹ C. per min. to the boiling point of the cooled solution under atmospheric pressure, the said period being not more than about 5 hours. The solution so treated may be filtered to remove Fe 2 O 3 and leave a solution having an Al 2 O 3 /Fe 2 O 3 ratio greater than 2000/1. Cooling may be carried out either externally or internally by the addition of water or an aqueous solution, the amount of water added being at most that required to reduce the concentration of aluminium nitrate in the cooled solution to about 25% by weight. Alumina may be obtained from the aluminium nitrate solution, e.g. by crystallization of aluminium nitrate nonahydrate followed by thermal decomposition. Reference has been directed by the Comptroller to Specification 1,107,232.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70325668A | 1968-02-06 | 1968-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1257521A true GB1257521A (en) | 1971-12-22 |
Family
ID=24824665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1257521D Expired GB1257521A (en) | 1968-02-06 | 1969-01-10 |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT290468B (en) |
| BR (1) | BR6905882D0 (en) |
| DE (1) | DE1901617A1 (en) |
| ES (1) | ES363334A1 (en) |
| FR (1) | FR2001378A1 (en) |
| GB (1) | GB1257521A (en) |
| NL (1) | NL6900706A (en) |
| NO (1) | NO121602B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098370A (en) * | 2017-05-15 | 2017-08-29 | 天津市风船化学试剂科技有限公司 | A kind of preparation method of 5N high pure nitric acids aluminium |
-
1969
- 1969-01-10 GB GB1257521D patent/GB1257521A/en not_active Expired
- 1969-01-14 DE DE19691901617 patent/DE1901617A1/en active Pending
- 1969-01-15 AT AT38069A patent/AT290468B/en not_active IP Right Cessation
- 1969-01-16 NL NL6900706A patent/NL6900706A/xx unknown
- 1969-01-20 FR FR6900972A patent/FR2001378A1/en not_active Withdrawn
- 1969-01-23 NO NO26769A patent/NO121602B/no unknown
- 1969-01-27 BR BR20588269A patent/BR6905882D0/en unknown
- 1969-02-06 ES ES363334A patent/ES363334A1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098370A (en) * | 2017-05-15 | 2017-08-29 | 天津市风船化学试剂科技有限公司 | A kind of preparation method of 5N high pure nitric acids aluminium |
Also Published As
| Publication number | Publication date |
|---|---|
| ES363334A1 (en) | 1970-12-16 |
| BR6905882D0 (en) | 1973-03-08 |
| DE1901617A1 (en) | 1970-10-01 |
| NO121602B (en) | 1971-03-22 |
| AT290468B (en) | 1971-06-11 |
| FR2001378A1 (en) | 1969-09-26 |
| NL6900706A (en) | 1969-08-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |