Low temperature refining and formation of refractory metals

Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Utilizing fused bath

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C205S368000, C205S371000, C205S397000, C205S398000, C205S402000, C205S406000, C205S410000, C205S560000, C205S564000, C205S572000

Reexamination Certificate

active

10868273

ABSTRACT:
A low temperature method for reducing and purifying refractory metals, metal compounds, and semi-metals using a catalyst. Using this invention, TiO2can be reduced directly to Ti metal at room temperature. The catalyst is an ion in an electrolyte that catalyzes the rate of the reduction of a compound MX to M, wherein M is a metal or a semi-metal; MX is a metal compound, a semi-metal compound, or a metal or semi-metal dissolved as an impurity in M; and X is an element chemically combined with or dissolved in M.

REFERENCES:
patent: 6565820 (2003-05-01), Weimer et al.
patent: 6911135 (2005-06-01), Thied et al.
patent: 6921473 (2005-07-01), Ward-Close et al.
patent: 6958115 (2005-10-01), O'Gardy et al.
patent: PCT/GB99/01781 (1999-12-01), None
patent: WO 99/64638 (1999-12-01), None
C L Hussey, “The Electrochemistry of Room-Temperature Haloaluminate Molten Salts,” Chemistry of Nonaqueous Solutions, Mamantov et al eds., 1994, 227-275, VCH Publishers, USA.
George Zheng Chen et al., “Direct electrochemical reduction of titanium dioxide to titanium in molten calcium chloride,” Nature, 2000, 407, 361-364.
Helen L. Ngo et al., “Thermal properties of imidazolium ionic liquids,” Thermochimica Acta, 2000, 357-358, pp. 97-102.
Yves Chauvin et al., “Nonaqueous ionic liquids as reaction solvents,” Chemtech, 1995, 26-30.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Low temperature refining and formation of refractory metals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low temperature refining and formation of refractory metals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low temperature refining and formation of refractory metals will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3811141

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.