GB901138A - Improvements in agglomerates and the manufacture thereof - Google Patents
Improvements in agglomerates and the manufacture thereofInfo
- Publication number
- GB901138A GB901138A GB29617/60A GB2961760A GB901138A GB 901138 A GB901138 A GB 901138A GB 29617/60 A GB29617/60 A GB 29617/60A GB 2961760 A GB2961760 A GB 2961760A GB 901138 A GB901138 A GB 901138A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alumina
- carbon
- sodium
- solution
- aqueous solution
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/28—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using special binding agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/072—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with aluminium
- C01B21/0726—Preparation by carboreductive nitridation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/50—Agglomerated particles
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
- C01P2006/82—Compositional purity water content
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Agglomerates consisting wholly or mainly of alumina and carbon are formed by adding an alkaline solution to a homogeneous powdered mixture of the alumina and carbon and then granulating and drying the resultant paste. The powders are preferably finer than 150 micron and the ratio of alumina to carbon may be in the stoichiometric ratio for the reduction of the alumina. The alkaline solution may be an aqueous solution of sodium or potassium hydroxide containing 200 to 400 gms. of hydroxide per litre or an aqueous solution of sodium aluminate and sodium hydroxide and 5-20% by weight of the solution is added to the alumina-carbon mixture in an inclined rotatable mixer containing a granulating disc or drum. The granules are dried at 100-200 DEG C. The carbon used may be charcoal, petroleum coke, coal or a caked carbohydrate. Specification 868,301 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR804233A FR1461305A (en) | 1959-09-03 | 1959-09-03 | Process for preparing agglomerates based on aluminum oxide and carbon |
Publications (1)
Publication Number | Publication Date |
---|---|
GB901138A true GB901138A (en) | 1962-07-18 |
Family
ID=8718802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29617/60A Expired GB901138A (en) | 1959-09-03 | 1960-08-26 | Improvements in agglomerates and the manufacture thereof |
Country Status (8)
Country | Link |
---|---|
CH (1) | CH395034A (en) |
DE (1) | DE1188046B (en) |
ES (1) | ES260753A1 (en) |
FR (1) | FR1461305A (en) |
GB (1) | GB901138A (en) |
LU (1) | LU39124A1 (en) |
NL (1) | NL254943A (en) |
OA (1) | OA01576A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4491471A (en) * | 1984-01-16 | 1985-01-01 | Reynolds Metals Company | Composite pellet for use as a carbothermic reduction feed |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3164781D1 (en) * | 1980-12-24 | 1984-08-16 | Pechiney Aluminium | Process for the carbochlorination of alumina in a fused salt bath |
FR2496632A1 (en) * | 1980-12-24 | 1982-06-25 | Pechiney Aluminium | Anhydrous aluminium chloride mfr. - by carbo:chlorination of alumina in molten chloride salt bath contg. packing of alumina agglomerates which increase output |
CA1329461C (en) * | 1987-04-14 | 1994-05-17 | Alcan International Limited | Process of producing aluminum and titanium nitrides |
CA1269404A (en) * | 1987-11-03 | 1990-05-22 | Mukesh K. Jain | Porous membrane of sinterable refractory metal oxides or silica |
US5080879A (en) * | 1988-12-01 | 1992-01-14 | Alcan International Limited | Process for producing silicon carbide platelets and the platelets so produced |
-
0
- LU LU39124D patent/LU39124A1/xx unknown
- NL NL254943D patent/NL254943A/xx unknown
-
1959
- 1959-09-03 FR FR804233A patent/FR1461305A/en not_active Expired
-
1960
- 1960-08-26 GB GB29617/60A patent/GB901138A/en not_active Expired
- 1960-09-02 CH CH994460A patent/CH395034A/en unknown
- 1960-09-02 ES ES0260753A patent/ES260753A1/en not_active Expired
- 1960-09-03 DE DEP25632A patent/DE1188046B/en active Pending
-
1964
- 1964-12-31 OA OA51554A patent/OA01576A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4491471A (en) * | 1984-01-16 | 1985-01-01 | Reynolds Metals Company | Composite pellet for use as a carbothermic reduction feed |
Also Published As
Publication number | Publication date |
---|---|
LU39124A1 (en) | |
NL254943A (en) | |
ES260753A1 (en) | 1961-04-01 |
CH395034A (en) | 1965-07-15 |
DE1188046B (en) | 1965-03-04 |
OA01576A (en) | 1969-09-20 |
FR1461305A (en) | 1966-02-25 |
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