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US 6,063,254 AGranted
Method for producing titanium crystal and titanium
AssigneeThe Alta Group, Inc.
InventorsHarry Rosenberg, Nigel Winters, Yun Xu
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Abstract
Described is a method and apparatus for producing high purity titanium and high purity titanium so produced. The process contemplates producing titanium sponge in a container and performing titanium fused salt electrolysis in situ in the same container to produce high purity titanium crystal, and where especially low oxygen content is desired, to treat the high purity titanium crystal as produced with iodine.
Claims32
A method for producing high purity titanium comprising:
- reacting titanium tetrachloride with a reducing agent comprising alkali or alkaline earth metal or a combination thereof in a container to produce titanium metal sponge and molten alkali or alkaline earth metal salt or a combination of those salts;
- chlorinating the salt in said container;
- maintaining the presence of at least some of the produced titanium sponge in the container to serve as an anode;
- electrolyzing the titanium sponge in situ in said container to produce titanium crystal at a cathode in the container;
- recovering the produced titanium crystal and salt from said container;
- and
- removing salt from the recovered titanium crystal.
4 more elements
Dependencies are inferred from the claim text.