GB1244970A - Improvements in the production of metal oxides - Google Patents
Improvements in the production of metal oxidesInfo
- Publication number
- GB1244970A GB1244970A GB5641368A GB5641368A GB1244970A GB 1244970 A GB1244970 A GB 1244970A GB 5641368 A GB5641368 A GB 5641368A GB 5641368 A GB5641368 A GB 5641368A GB 1244970 A GB1244970 A GB 1244970A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- reaction
- heated
- reaction zone
- arc
- 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
- 229910044991 metal oxide Inorganic materials 0.000 title abstract 2
- 150000004706 metal oxides Chemical class 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 10
- 238000006243 chemical reaction Methods 0.000 abstract 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 230000001706 oxygenating effect Effects 0.000 abstract 3
- 229910010413 TiO 2 Inorganic materials 0.000 abstract 2
- 229910052785 arsenic Inorganic materials 0.000 abstract 2
- 229910052796 boron Inorganic materials 0.000 abstract 2
- 229910001507 metal halide Inorganic materials 0.000 abstract 2
- 150000005309 metal halides Chemical class 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- 229910003902 SiCl 4 Inorganic materials 0.000 abstract 1
- 229910007926 ZrCl Inorganic materials 0.000 abstract 1
- PLOSSHSFATUNTF-UHFFFAOYSA-N [K]C1=CC=CC=C1 Chemical compound [K]C1=CC=CC=C1 PLOSSHSFATUNTF-UHFFFAOYSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 229910052787 antimony Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
Classifications
-
- 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
- C01B13/28—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 using a plasma or an electric discharge
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
1,244,970. Vapour-phase halide oxidation. P.P.G. INDUSTRIES Inc. 28 Nov., 1968, No. 56413/68. Addition to 1,108,425. Headings C1A and ON. [Also in Divisions C7 and H5] In the preparation of finely-divided metal oxide (including As, B, P and Si oxides) by the vapour phase oxidation of metal halide with an oxygenating gas in a reaction zone at elevated temperature, heat is furnished to the reaction zone by passing a heated gas thereto, the gas (which may be the metal halide, oxygenating gas, or gas inert in the reaction conditions) being heated by passage through an electric discharge conducted between electrodes at least one of which comprises at least 72 wt. per cent Ag and at least 1 wt. per cent Cu in the portion subject to wear by the discharge and has 0À0005-0À1 vol. per cent of voids measuring 0À019-0À04 inch in any one dimension. Oxygenating gas is defined as O 2 , a free O 2 -containing gas or an oxidizing gas. As shown, for the production of TiO 2 , an arc A is established between watercooled cylindrical electrodes 1 and 8, the upper end of the arc being kept in motion by the . magnetic field produced by coil 3. Gas to be heated (oxygen) is admitted through inlet 6, is heated by arc A possibly to the plasma condition, and then passes through electrode 8 and passage 10, where it may be mixed with and cooled by a secondary oxygen stream introduced through nozzle 12, into reaction zone 17. TiCl 4 is admitted to reaction zone 17 from annulus 19. To prevent reaction of the oxygen and TiCl 4 adjacent to their inlets, a stream of gas inert in the reaction may be interposed by emission from concentric annulus 18. Other configurations of electrodes are described with reference to Figs. 1, 2, 5 and 6 (not shown). Apart from TiO 2 , reference is also made to the production of oxides of Al As, B, Fe, P, Si, Sr, Sn, Ti, Zn, Zr, Nb, Sb, Pb and Hg. Additives for improving pigmentary products may be introduced to the reaction, e.g. AlCl 3 , ZrCl 4 , SiCl 4 , alkali metals or alkaline earth metals or compounds thereof such as KCl, K 2 SO 4 , KNO 3 , K acetate and phenyl potassium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5641368A GB1244970A (en) | 1968-11-28 | 1968-11-28 | Improvements in the production of metal oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5641368A GB1244970A (en) | 1968-11-28 | 1968-11-28 | Improvements in the production of metal oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1244970A true GB1244970A (en) | 1971-09-02 |
Family
ID=10476553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5641368A Expired GB1244970A (en) | 1968-11-28 | 1968-11-28 | Improvements in the production of metal oxides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1244970A (en) |
-
1968
- 1968-11-28 GB GB5641368A patent/GB1244970A/en not_active Expired
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