GB629333A - Improvements in production of titanium dioxide - Google Patents
Improvements in production of titanium dioxideInfo
- Publication number
- GB629333A GB629333A GB13137/47A GB1313747A GB629333A GB 629333 A GB629333 A GB 629333A GB 13137/47 A GB13137/47 A GB 13137/47A GB 1313747 A GB1313747 A GB 1313747A GB 629333 A GB629333 A GB 629333A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphuric acid
- acid
- tio2
- titanium
- redissolving
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
- C22B34/1259—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching treatment or purification of titanium containing solutions or liquors or slurries
-
- 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
- C01G23/08—Drying; Calcining ; After treatment of titanium oxide
-
- 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
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
Landscapes
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Rutile titanium dioxide is prepared by calcining for 1-2 hours at 900-975 DEG C. a precipitate obtained by hydrolysing a titanium sulphate solution containing less than 0.025 per cent P2O5 on the basis of the TiO2. The sulphate solution which may contain 200-250 gms./litre TiO2, and have an acid-TiO2 ratio of 2 : 1, may be produced: (i) by smelting the ore to produce pig iron, which takes up most of the phosphorus present, and digesting the slag with sulphuric acid; (ii) by preliminarily leaching an ore with 10 per cent sulphuric acid to remove the phosphorus prior to the normal acid extraction; (iii) by salting out titanium sulphate crystals using sulphuric acid from the solution obtained by the normal acid extraction, washing with alcohol, redissolving, again salting out with sulphuric acid, washing with alcohol, and redissolving; (iv) by purifying titanium tetrachloride obtained by chloridization of ilmenite, oxidizing with air in the vapour phase, muffling to remove chlorine, and digesting with sulphuric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US629333XA | 1946-07-12 | 1946-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB629333A true GB629333A (en) | 1949-09-16 |
Family
ID=22045802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13137/47A Expired GB629333A (en) | 1946-07-12 | 1947-05-15 | Improvements in production of titanium dioxide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB629333A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002048412A1 (en) * | 2000-12-12 | 2002-06-20 | Highveld Steel And Vanadium Corporation Limited | Recovery of titanium dioxide from titanium oxide bearing materials like steelmaking slags |
| CN111646499A (en) * | 2020-06-29 | 2020-09-11 | 攀钢集团钒钛资源股份有限公司 | Titanium extraction tailing washing treatment method |
-
1947
- 1947-05-15 GB GB13137/47A patent/GB629333A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002048412A1 (en) * | 2000-12-12 | 2002-06-20 | Highveld Steel And Vanadium Corporation Limited | Recovery of titanium dioxide from titanium oxide bearing materials like steelmaking slags |
| AU2001262583B2 (en) * | 2000-12-12 | 2007-08-02 | Evraz Highveld Steel And Vanadium Limited | Recovery of titanium dioxide from titanium oxide bearing materials like steelmaking slags |
| US7462337B2 (en) | 2000-12-12 | 2008-12-09 | Highveld Steel And Vanadium Corporation Limited | Recovery of titanium dioxide from titanium oxide bearing materials like steelmaking slags |
| CN111646499A (en) * | 2020-06-29 | 2020-09-11 | 攀钢集团钒钛资源股份有限公司 | Titanium extraction tailing washing treatment method |
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