Energy From Thorium Discussion Forum

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PostPosted: Jan 11, 2010 12:27 pm 

Joined: Jul 28, 2008 10:44 pm
Posts: 3063
Ida-Russkie wrote:

This nickel is contaminated with TC 99.
It seems that DOE wants the contractor to purify the nickel before selling it( for nuclear applications). Would Tc 99 help or hurt hasteloy N used in a LFTR?

I wonder if this is MSRE and nickle really means Hastalloy-N?
If we have to qualify a material for nuclear use I would want to have an assurance of supply in the event things really take off. I'm not sure just how much we need for each reactor but I suspect we would be better off with fresh stuff.

PostPosted: Jan 11, 2010 1:44 pm 
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Joined: Nov 30, 2006 3:30 pm
Posts: 3782
Location: Alabama
No, this was barrier material in the gaseous diffusion enrichment plants they had there. The presence of Tc-99 indicates that they must have run some recycled/recovered uranium through the plant at some point, since Tc comes off as a hexafluoride a lot like uranium.

PostPosted: Jan 12, 2010 12:59 am 

Joined: Aug 29, 2008 4:55 pm
Posts: 494
Location: Idaho Falls, Idaho
Halve of the nickel is scrap and the other halve is ingots melted in the late 1980's. The ingot nickel is 99.9 percent pure. The contractor is to purify it and make products to sell to industry. The trace fissile may or may not be a problem in a LFTR. I am not sure how pure you can get the stuff. May be easier to dilute it with clean nickel until you have a usable product. Hastelloy N maybe one such end product.

Ex-1 at the end of this draft sales document has the radiological properties of the ingots.

File comment: DRAFT sales agreement
DraftNickelSalesAgreement_FINAL.pdf [801.61 KiB]
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PostPosted: May 10, 2016 3:30 pm 
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Joined: Dec 22, 2015 8:40 pm
Posts: 359
Location: Florida
Over six years after this thread was initiated, Dr. Lyman was included in the panel for the April 21, 2016 hearing on S.2795:

Senate Hearing on Regulation Innovation and Modernization

The US House hearing was on April 29, 2016: (H.R.4979 - Advanced Nuclear Technology Development Act of 2016)

"Those who say it can’t be done are usually interrupted by others doing it."

—James Arthur Baldwin, American novelist, essayist, playwright, poet, and social critic

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