GB926716A - Improvements in the production of metal oxides - Google Patents
Improvements in the production of metal oxidesInfo
- Publication number
- GB926716A GB926716A GB30286/59A GB3028659A GB926716A GB 926716 A GB926716 A GB 926716A GB 30286/59 A GB30286/59 A GB 30286/59A GB 3028659 A GB3028659 A GB 3028659A GB 926716 A GB926716 A GB 926716A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wall
- fed
- reactor
- carbon
- gas
- 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
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
- C01B13/20—Methods for preparing oxides or hydroxides in general by oxidation of elements in the gaseous state; by oxidation or hydrolysis of compounds in the gaseous state
- C01B13/22—Methods for preparing oxides or hydroxides in general by oxidation of elements in the gaseous state; by oxidation or hydrolysis of compounds in the gaseous state of halides or oxyhalides
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
In the production of metal oxides by vapour phase oxidation of the corresponding metal chlorides, bromides or iodides at temperatures of 800 DEG -1450 DEG C., the reactor wall is made of porous carbon or graphite and is maintained at 500 DEG -800 DEG C. whilst chlorine, bromine or iodine gas is passed inwardly through the porous wall to form a continuous protective gas film to prevent oxide scale deposition. The ratio by weight of halogen so employed to that liberated in the main reaction per unit time is from 0,1 to 1. The reactor, Fig. 1, may be the same as that described in the parent Specification. The reaction zone 6 is fed with an oxidizing gas such as <PICT:0926716/III/1> oxygen or oxygen enriched air, which may contain 0,05 to 10% water vapour, through line 4 and the halide is fed through line 11 to a circumferential slot 13 into the oxidizing gas preferably at right angles to the main axis of flow, as described and claimed in Specification 757,703. The reactant inlet arrangement is surrounded by a furnace 1. The porous walls 7 of the reaction zone are formed of carbon or graphite and are surrounded by a jacket 15 to which the halogen shielding gas is fed from line 16. The pores of the carbon or graphite wall may be from 0,05 to 200 microns and the wall and surrounding jacket may extend up to or beyond the circumferential slot to prevent scale deposit thereon. The halogen shielding gas may be heated to 300 DEG -600 DEG C. before passage through the wall and it may be mixed with an inert gas such as nitrogen helium, argon or neon or with a non-oxidizing gas such as carbon monoxide or carbon tetrachloride. The stated effect of the halogen in titanium tetrachloride oxidation is to form a subchloride such as titanium oxychloride with the already formed titanium dioxide near the wall, the subchloride reacting with chlorine to form tetrachloride which is then reoxidized. According to a typical example, titanium tetrachloride and oxygen containing 2,4% water were fed to the reactor inlets enclosed in a furnace maintained at 1020 DEG C., whilst dry chlorine at 20 DEG C. was fed through porous graphite walls of the reactor. Reactor retention times may be 0,01 to 5 seconds. Production of titanium, zirconium, aluminium, antimony, iron, tin and zinc oxides is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB30286/59A GB926716A (en) | 1954-02-08 | 1959-09-04 | Improvements in the production of metal oxides |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3697/54A GB764084A (en) | 1954-02-08 | 1954-02-08 | Improvements in or relating to the production of metal oxides |
GB30286/59A GB926716A (en) | 1954-02-08 | 1959-09-04 | Improvements in the production of metal oxides |
Publications (1)
Publication Number | Publication Date |
---|---|
GB926716A true GB926716A (en) | 1963-05-22 |
Family
ID=9763248
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3697/54A Expired GB764084A (en) | 1954-02-08 | 1954-02-08 | Improvements in or relating to the production of metal oxides |
GB30286/59A Expired GB926716A (en) | 1954-02-08 | 1959-09-04 | Improvements in the production of metal oxides |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3697/54A Expired GB764084A (en) | 1954-02-08 | 1954-02-08 | Improvements in or relating to the production of metal oxides |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB764084A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1285987B (en) * | 1965-01-18 | 1969-01-02 | British Titan Products | Process and apparatus for the production of oxides |
US3505091A (en) * | 1968-07-29 | 1970-04-07 | Du Pont | Production of titanium dioxide pigments |
WO1989005281A1 (en) * | 1987-11-30 | 1989-06-15 | Toth Aluminum Corporation | Oxidizing method for production of special aluminas from pure aluminum chloride |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004196626A (en) * | 2002-12-20 | 2004-07-15 | Sumitomo Chem Co Ltd | Method for producing titanium oxide |
CN113845145A (en) * | 2021-11-15 | 2021-12-28 | 攀钢集团攀枝花钢铁研究院有限公司 | Scar-proof device of titanium white chloride oxidation reactor and oxidation reactor |
-
1954
- 1954-02-08 GB GB3697/54A patent/GB764084A/en not_active Expired
-
1959
- 1959-09-04 GB GB30286/59A patent/GB926716A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1285987B (en) * | 1965-01-18 | 1969-01-02 | British Titan Products | Process and apparatus for the production of oxides |
US3505091A (en) * | 1968-07-29 | 1970-04-07 | Du Pont | Production of titanium dioxide pigments |
WO1989005281A1 (en) * | 1987-11-30 | 1989-06-15 | Toth Aluminum Corporation | Oxidizing method for production of special aluminas from pure aluminum chloride |
Also Published As
Publication number | Publication date |
---|---|
GB764084A (en) | 1956-12-19 |
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