http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-828374-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B34-1272 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B34-12 |
| filingDate | 1957-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36c07e992fbbf1b7e6b32add958249b4 |
| publicationDate | 1960-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-828374-A |
| titleOfInvention | Improvements in or relating to the manufacture of titanium |
| abstract | A process for the manufacture of metallic titanium wherein titanium tetrachloride is reacted with sodium in an inert atmosphere in a reactor at a temperature between 200 DEG C. and the melting point of sodium chloride while maintaining in the reactor an agitated non-adherent particulate bed of reaction products and thereafter recovering titanium from said products, comprises providing a system comprising a vessel connected to said reactor and which permits material to be transferred from the vessel to the reactor and reaction products from the reactor to the vessel and for reaction products to be withdawn from the system by way of the reactor, continuously withdrawing a portion of said p reaction products still in the form of a non-adherent particulate bed from the reactor into said vessel, forming an agitated non-adherent particulate bed of said withdrawn portion of the reaction products in said vessel, adding sodium to said agitated non-adherent withdrawn portion of reaction products in said vessel, feeding the resulting discrete particles from said vessel into said reactor, feeding titanium tetrachloride into said reactor, permitting interaction to take place in said reactor between the titanium tetrachloride and sodium in said discrete particles to yield titanium and sodium chloride, and withdrawing a portion of the reaction products from the system by way of the reactor. The reactor consists of a gas-tight mild steel pot with a stirrer, the shaft of which passes through a gas-tight seal in the lid of the reactor, the lid carrying pipes for the delivery of argon and TiCl4. A screw conveyer enclosed in a mild steel pipe discharges from the bottom of the dispersion vessel into the top of the reactor while an enclosed screw elevator transfers reaction products from the reactor to the dispersion vessel which consists of a gas tight mild steel pot fitted with a mild steel stirrer and means for introducing argon and sodium through its lid. The screw elevator carries a pipe fitted with a valve which can be opened to ensure a bleed-off for the reactor products. The system is maintained under slight pressure of argon and the additions of sodium and TiCl4 and the removal of the reaction-products are carried out continuously. The rate of addition of sodium is controlled so that the dispersion vessel contains 1% of sodium which has been purified and is molten at 130 DEG C. while addition of TiCl4 to the reactor is at such a rate that the resulting products contain 1% excess TiCl4, the temperature of the reactor being maintained at 600 DEG C. The amount of reaction products fed to the dispersion vessel is equivalent to the feed from the dispersion vessel to the reactor, the excess of reaction products being tapped off into a receiver where it is heated for one hour at 850 DEG C. to render the titanium less active. It is then cooled, ground and leached with 1% hydrochloric acid and the isolated titanium washed and dried. Specification 717,930 is referred to. |
| priorityDate | 1957-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.