Treatment of titaniferous materials – RGC Mineral Sands, Ltd.

… for facilitating the removal of impurities e.g. radionuclides, such as uranium and thorium … United States Patent 5578109 … of such borates include Ca 2 …


CO-EXTRACTION AND SEPARATE RECOVERY OF URANIUM AND THORIUM …

United States Patent 3835213 … steps being required for thorium removal … some iron and uranium as impurities. If both high purity uranium and thorium …


Molten salt reactor – Wikipedia, the free encyclopedia

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… the program in the United States … source of the thorium fuel cycle. Private companies from Japan, Russia, Australia and the United States, and … Sulfur, and metal impurities …


Internet Archive – Full text of “Monazite, thorium, and mesothorium”

… OF THE UNIVERSITY OF CALIFORNIA LOS … to the monazite deposits in the United States, as the imports of thorium … as necessary to remove all impurities. Thorium …


US Patent # 4,695,327. Surface treatment to remove impurities …

United States Patent : 4,695,327: Grebinski September 22, 1987 … Grebinski; Thomas J. (Sunnyvale, CA) Assignee: Purusar … semiconductor wafers, in particular the removal of …


Uranium mining in the United States – Wikipedia, the free …

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Uranium mining in the United States is the extraction of … The deposits were mined for uranium, thorium, and rare … nearly completed the first major project of removal of …


US Patent # 4,167,444. Removal of impurities from the coolant …

United States Patent : 4,167,444: Schweiger September … For example, in the THTR-300 (thorium high … of the carbon dust provided for the removal of undesired impurities …


Environmental Protection Agency – Halaco Engineering Company May 16, 2008

Oxnard, California . Prepared For: United States Environmental Protection … minute quantities of other impurities. … removal of scrap metal and removal of a thorium plate.


Evaluation of the Two Ion Chromatography Methods in the …

in the Proposed Revision of the United States … The second IC method is an impurity test that … Column, Application Note 233, LPN 2286, Sunnyvale, CA, 2009.


Recovery Of Rare Earth Elements

Preferably, thorium removal is optimized to ensure an … in the ore were present in cheralite, (LREE, Ca … Patent data source: patents published by the United States …

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