Process for removing technetium from iron and other metals

Title: Process for removing technetium from iron and other metals

Full Record
Other Related Research

Abstract

A process for removing technetium from iron and other metals comprises the steps of converting the molten, alloyed technetium to a sulfide dissolved in manganese sulfide, and removing the sulfide from the molten metal as a slag. 4 figs.

Inventors:: Leitnaker, J.M.; Trowbridge, L.D.

Issue Date:: 1999-03-23

Research Org.:: Lockheed Martin Energy Syst Inc

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 335446

Patent Number(s):: 5,885,326

Application Number:: PAN: 8-884,128; TRN: 99:004578

Assignee:: Dept. of Energy, Washington, DC (United States) PTO; SCA: 320303; 052001; PA: EDB-99:045627; SN: 99002077334

DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 23 Mar 1999

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 05 NUCLEAR FUELS; TECHNETIUM; SULFIDATION; SEPARATION PROCESSES; IRON; LIQUID METALS; SLAGS; REMOVAL; TECHNETIUM SULFIDES

Citation Formats


                    Leitnaker, J.M., and Trowbridge, L.D. Process for removing technetium from iron and other metals.  United States: N. p., 1999. 
        Web.

Copy to clipboard


                    Leitnaker, J.M., & Trowbridge, L.D. Process for removing technetium from iron and other metals.  United States.

Copy to clipboard


                    Leitnaker, J.M., and Trowbridge, L.D. Tue .  
        "Process for removing technetium from iron and other metals".  United States.

Copy to clipboard


                    
@article{osti_335446,

  title        = {Process for removing technetium from iron and other metals},

  author       = {Leitnaker, J.M. and Trowbridge, L.D.},

  abstractNote = {A process for removing technetium from iron and other metals comprises the steps of converting the molten, alloyed technetium to a sulfide dissolved in manganese sulfide, and removing the sulfide from the molten metal as a slag. 4 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1999},

  month        = {3}

}

Copy to clipboard

Patent:

Search for the full text at the U.S. Patent and Trademark Office

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

Process for removing technetium from iron and other metals

Patent Application Leitnaker, James M. ; Trowbridge, Lee D.

Technetium is a radioactive product of the nuclear fission process. During reprocessing of spent or partially spent fuel from nuclear reactors, the technetium can be released and contaminate other, otherwise good, metals. A specific example is equipment in gaseous diffusion uranium enrichment cascades which have been used to process fuel which was returned from reactors, so-called reactor returns. These returns contained volatile technetium compounds which contaminated the metals in the equipment. Present regulations require that technetium be removed before the metal can be re-used at non-radioactive sites. Removing the technetium from contaminated metals has two desirable results. First, the largemore »« less
Full Text Available
Process for removing technetium from iron and other metals

Patent Leitnaker, James M. ; Trowbridge, Lee D.

A process for removing technetium from iron and other metals comprises the steps of converting the molten, alloyed technetium to a sulfide dissolved in manganese sulfide, and removing the sulfide from the molten metal as a slag.
Full Text Available
PROCESS FOR REMOVING CERIUM AND THORIUM FROM THE OTHER RARE EARTH METALS.

Patent Chiola, V. ; Kamin, G.J.
Process for removing helium and other impurities from a mixture containing deuterium and tritium, and a deuterium/tritium mixture when purified in accordance with such a process

Patent Pierini, G.

A process is disclosed for removing helium and other impurities from a mixture containing deuterium and tritium, which process comprises the steps of: separating from the mixture isotopes of hydrogen in any of their diatomic combined forms; oxidizing the separated isotopes to their corresponding oxides; separating tritium oxide and deuterium-tritium oxide from the oxides thus formed; and electrolyzing the separated oxides to deuterium and tritium. Preferably the impure mixture of deuterium and tritium is a waste product of a fusion reactor, and the purified deuterium/tritium mixture is recycled to the reactor.
Process and sorbent system for removing nitrogen and other oxides from gas streams

Patent Magder, J.

Novel sorbents comprising an alumina component comprising alumina of the surface area of at least 20 and preferably 100 square meters per gram, and a salt, or mixtures of salts, of an alkali or alkaline earth metal, especially oxides, hydroxides, carbonates, nitrates, acetates or aluminates of sodium and potassium, are outstandingly effective for the removal of nitrogen oxides and sulfur oxides from waste gas streams.

Similar Records