http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-814181-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_859117de74c968554da529b7fc969347 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-1272 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-12 |
| filingDate | 1955-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_568a3eedab7bd27665e37fb3adb3fbcc |
| publicationDate | 1959-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-814181-A |
| titleOfInvention | Improvements in or relating to the production of titanium |
| abstract | 814,181. Extracting titanium. MINISTER OF SUPPLY. March 22, 1957 [Dec. 31, 1955, Oct. 25 1956], Nos. 37549/55 and 32526/56. Class 82(1) Titanium is prepared by the continuous reduction of titanium tetrachloride vapour with an alkali or alkaline earth metal which is dissolved in a melt consisting of molten halides of the same or other such metals, a divided reaction vessel being employed so that no undissolved reducing metal comes into contact with titanium tetrachloride vapour. As shown in Fig. 1 of the first Provisional Specification, the reactor, heated by furnace 7, consists of a tubular steel container 1 housing a central, open-ended steel tube 2, extending below the surface of the molten halides 5, to form a divided cell, the lower end of which is provided with an outlet 4. The outer, annular, chamber 11 has an inlet 10 through which titanium tetrachloride vapour and an inert gas, such as argon, are supplied, the former from reservoir 12 and vaporizer 13 and the latter from side tube 14, an inlet 3 for supplying additional fused halides to the melt and an exhaust tube 15. The inner chamber, formed by the tube 2, has an inlet 17 connected to a press 16 for the supply of reducing metal 6 by extruding a block thereof, an inlet and outlet 8 and 9 for inert gas and a thermocouple 19. Titanium, formed in chamber 11, sinks to the bottom of the vessel and may either be drawn off at 4 as a suspension in the fused salt, or a block of frozen salt containing titanium may be withdrawn by the insertion of a freezing device, shown in Fig. 3 of the Figures of the second Provisional Specification, into the outer chamber 11, which consists of a tube 26, through which cold air is passed, the top part of which is surrounded by thermal lagging sheathed in a stainless steel tube 27. The titanium may be separated from the salt mixture either by vacuum distillation or acid leaching. A modification (not shown) describes a large scale apparatus consisting of a funnel-shaped reactor having a large number of relatively small diameter steel tubes dipping below the surface of the melt through which titanium tetrachloride is passed, several larger diameter tubes, also projecting beneath the melt surface, for the addition of reducing metal and a central tube for the addition of salts to form the melt. The lower, narrow, end of the funnel is fitted with a sump which may be sealed from the rest of the reactor by a frozen plug of salt, thereby enabling a quantity of molten salt containing titanium to be withdrawn. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CZ-300346-B6 |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.