GB1412697A - Aluminothermic production of magnesium and an oxidic slag containing recoverable alumina - Google Patents
Aluminothermic production of magnesium and an oxidic slag containing recoverable aluminaInfo
- Publication number
- GB1412697A GB1412697A GB1847573A GB1847573A GB1412697A GB 1412697 A GB1412697 A GB 1412697A GB 1847573 A GB1847573 A GB 1847573A GB 1847573 A GB1847573 A GB 1847573A GB 1412697 A GB1412697 A GB 1412697A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnesium
- alumina
- slag
- produce
- aluminium
- 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
- 239000002893 slag Substances 0.000 title abstract 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 4
- 239000011777 magnesium Substances 0.000 title abstract 4
- 229910052749 magnesium Inorganic materials 0.000 title abstract 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 4
- 239000000292 calcium oxide Substances 0.000 abstract 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 239000000395 magnesium oxide Substances 0.000 abstract 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 abstract 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 abstract 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000010583 slow cooling Methods 0.000 abstract 1
- 229910001388 sodium aluminate Inorganic materials 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/20—Obtaining alkaline earth metals or magnesium
- C22B26/22—Obtaining magnesium
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/06—Dry methods smelting of sulfides or formation of mattes by carbides or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
1412697 Producing magnesium and alumina J M AVERY 17 April 1973 [18 April 1972] 18475/73 Heading C1A [Also in Division C7] Magnesium is produced by charging an oxide mixture comprising magnesium oxide and calcium oxide and a metallic reducing agent comprising at least 85% aluminium into a reactor and maintaing therein a molten calcium aluminate slag, removing when the magnesium oxide content of the slag is less than 5% by weight slag comprising from 35 to 65% by weight Al 2 O 3 , 35-55% CaO and from 0 to 10% SiO 2 , evolving magnesium vapour from the reactor to a condenser and condensing and recovering the mangesium. The slag produced may be self-disintegrating upon slow cooling or may be ground, the resulting powder being leached with sodium carbonate for one or two hours at 70 C. to produce calcium carbonate and sodium aluminate which is carbonated to produce aluminium hydroxide which may be calcined and used as cell feed alumina or may be subjected to a desilication step before use as cell feed alumina. The aluminium so formed may be recycled as a reducing agent. The so formed calcium carbonate may be calcined to produce CO 2 for use in the carbonation process and CaO which is recycled.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24514272A | 1972-04-18 | 1972-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1412697A true GB1412697A (en) | 1975-11-05 |
Family
ID=22925456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1847573A Expired GB1412697A (en) | 1972-04-18 | 1973-04-17 | Aluminothermic production of magnesium and an oxidic slag containing recoverable alumina |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4920014A (en) |
| CA (1) | CA994108A (en) |
| DE (1) | DE2318936B2 (en) |
| FR (1) | FR2180783B1 (en) |
| GB (1) | GB1412697A (en) |
| IN (1) | IN141342B (en) |
| IT (1) | IT987082B (en) |
| NO (1) | NO136718C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146986A2 (en) * | 1983-12-21 | 1985-07-03 | Shell Internationale Researchmaatschappij B.V. | Process for producing magnesium |
| CN111748691A (en) * | 2019-03-28 | 2020-10-09 | 狄保法 | Aluminothermic magnesium smelting device and process |
| CN112981098A (en) * | 2021-02-02 | 2021-06-18 | 朱广东 | Dolomite smelting device and smelting method thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2395319A1 (en) * | 1977-06-24 | 1979-01-19 | Sofrem | IMPROVEMENTS IN THERMAL MAGNESIUM PRODUCTION PROCESSES |
| US4140523A (en) * | 1977-11-28 | 1979-02-20 | The Dow Chemical Company | Chemicothermal production of magnesium |
| US4582532A (en) * | 1985-05-02 | 1986-04-15 | Aluminum Company Of America | Thermal reduction process for production of calcium using aluminum as a reductant |
| FR3038894B1 (en) * | 2015-07-15 | 2017-06-23 | Kerneos | PROCESS FOR PRODUCING CALCIUM ALUMINATES |
| CN112267018A (en) * | 2020-09-29 | 2021-01-26 | 朱广东 | Aluminum magnesium co-production process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1011226A (en) * | 1948-12-30 | 1952-06-20 | Magnesium manufacturing process | |
| FR987046A (en) * | 1949-03-26 | 1951-08-08 | Fonderie De Beaufort | High temperature reduction magnesium manufacturing process |
| US3658509A (en) * | 1969-02-03 | 1972-04-25 | Julian M Avery | Process for the metallothermic production of magnesium |
-
1973
- 1973-03-12 CA CA165,840A patent/CA994108A/en not_active Expired
- 1973-04-13 FR FR7313428A patent/FR2180783B1/fr not_active Expired
- 1973-04-14 DE DE2318936A patent/DE2318936B2/en not_active Ceased
- 1973-04-16 IT IT2307373A patent/IT987082B/en active
- 1973-04-17 NO NO164073A patent/NO136718C/en unknown
- 1973-04-17 GB GB1847573A patent/GB1412697A/en not_active Expired
- 1973-04-18 JP JP4307373A patent/JPS4920014A/ja active Pending
- 1973-11-23 IN IN2578/CAL/73A patent/IN141342B/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146986A2 (en) * | 1983-12-21 | 1985-07-03 | Shell Internationale Researchmaatschappij B.V. | Process for producing magnesium |
| EP0146986A3 (en) * | 1983-12-21 | 1985-08-14 | Shell Internationale Research Maatschappij B.V. | Process for producing magnesium |
| CN111748691A (en) * | 2019-03-28 | 2020-10-09 | 狄保法 | Aluminothermic magnesium smelting device and process |
| CN112981098A (en) * | 2021-02-02 | 2021-06-18 | 朱广东 | Dolomite smelting device and smelting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2180783B1 (en) | 1975-04-04 |
| DE2318936B2 (en) | 1975-03-06 |
| FR2180783A1 (en) | 1973-11-30 |
| JPS4920014A (en) | 1974-02-22 |
| IN141342B (en) | 1977-02-19 |
| IT987082B (en) | 1975-02-20 |
| NO136718B (en) | 1977-07-18 |
| CA994108A (en) | 1976-08-03 |
| DE2318936A1 (en) | 1973-10-31 |
| NO136718C (en) | 1977-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |