GB764084A - Improvements in or relating to the production of metal oxides - Google Patents
Improvements in or relating to the production of metal oxidesInfo
- Publication number
- GB764084A GB764084A GB3697/54A GB369754A GB764084A GB 764084 A GB764084 A GB 764084A GB 3697/54 A GB3697/54 A GB 3697/54A GB 369754 A GB369754 A GB 369754A GB 764084 A GB764084 A GB 764084A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inlet
- porous
- passed
- wall
- reaction
- 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
Abstract
<PICT:0764084/III/1> In the vapour phase decompositions of a chloride, bromide or iodide of a metal to form the corresponding oxide with an oxidizing gas the reaction zone is provided with a porous refractory wall through which a shielding gas is passed from an external source to prevent scale decomposition. In the drawing an oxygen containing gas enters a vertical tube 3 through an inlet 4 and titanium tetrachloride for example enters through an inlet 11 to pass to a chamber 12 surrouding the tube 3 and from which chamber the titanium tetrachloride is introduced into the oxygen stream as a sheet through a sloted inlet 13 as in Specification 757,703. The reactant inlet arrangement is enclosed in a furnace 1 which may be heated or insulated. The reactant mixture passes to the reactor 6 formed with a porous wall 7 which is in turn encased in a jacket 15 through which the shielding gas is passed. Reaction products are removed at 5. Typical metal oxides which may be formed by the process are those of iron, titanium, silicon, zirconium antimony, tin, zinc and aluminium employing oxygen, air or other oxygen containing gas preferably humidified, or steam. The shielding gas may be nitrogen, carbon dioxide, chlorine, helium or argon which are inert to the reaction product, or the gaseous reaction products may be recycled in admixture with the shielding gases. Alternatively the shielding gas may be composed of gases which react with the oxide scale as described in Specification 715,255; for example, a mixture of carbon monoxide and chlorine may be employed which decomposes oxide scale to tetrachloride which is then re-oxidized to the oxide. The porous wall may be formed or porcelain, silica, nickel, steel porous carbon or graphite the average pore size of which is less than 130 microns. The pore size may be reduced to the desired value by applying a porous coating thereto such as by burning a metal halide within the wall. According to a typical example titanium tetrachloride and humidified air preheated to 1020 DEG C. were passed into a reaction vessel having a porous wall through which dry nitrogen at 20 DEG C. was passed. The reaction retention time is normally from 0.1 to 5 seconds. If desired the porous wall may be extended up to the lower side of the slotted inlets 13 thereby minimizing scale decomposition about that inlet.
Priority Applications (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 |
Applications Claiming Priority (1)
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 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB764084A true GB764084A (en) | 1956-12-19 |
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 After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30286/59A Expired GB926716A (en) | 1954-02-08 | 1959-09-04 | Improvements in the production of metal oxides |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB764084A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1433751A1 (en) * | 2002-12-20 | 2004-06-30 | Sumitomo Chemical Company, Limited | A 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 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1066651A (en) * | 1965-01-18 | 1967-04-26 | British Titan Products | Oxides |
US3505091A (en) * | 1968-07-29 | 1970-04-07 | Du Pont | Production of titanium dioxide pigments |
AU1052188A (en) * | 1987-11-30 | 1989-07-05 | Toth Aluminum Corporation | Oxidizing method for production of special aluminas from pure aluminum chloride |
-
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 |
---|---|---|---|---|
EP1433751A1 (en) * | 2002-12-20 | 2004-06-30 | Sumitomo Chemical Company, Limited | A method for producing titanium oxide |
US7303738B2 (en) | 2002-12-20 | 2007-12-04 | Sumitomo Chemical Company, Limited | 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 |
Also Published As
Publication number | Publication date |
---|---|
GB926716A (en) | 1963-05-22 |
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