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Title: C-11 cyanide production system

Patent ·
OSTI ID:1167219

A method for providing .sup.11C-labeled cyanides from .sup.11C labeled oxides in a target gas stream retrieved from an irradiated high pressure gaseous target containing O.sub.2 is provided, wherein .sup.11C labeled oxides are reduced with H.sub.2 in the presence of a nickel catalyst under a pressure and a temperature sufficient to form a product stream comprising at least about 95% .sup.11CH.sup.4 , the .sup.11CH.sub.4 is then combined with an excess of NH.sub.3 in a carrier/reaction stream flowing at an accelerated velocity and the combined .sup.11CH4 carrier/reaction stream is then contacted with a platinum (Pt) catalyst particulate supported on a substantially-chemically-nonreactive heat-stable support at a temperature of at least about 900 .degree. C., whereby a product stream comprising at least about 60%H.sup.11CN is provided in less than 10 minutes from retrieval of the .sup.11C labeled oxide.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-98CH10886
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Number(s):
8,932,551
Application Number:
13/584,033
OSTI ID:
1167219
Resource Relation:
Patent File Date: 2012 Aug 13
Country of Publication:
United States
Language:
English

References (6)

Production of carrier-free H.sup.11 CN patent August 1978
Labelled compound patent December 1998
Catalytic process patent January 1999
Fully-automated microfluidic system for the synthesis of radiolabeled biomarkers for positron emission tomography patent November 2010
Microfluidic Radiosynthesis System For Positron Emission Tomography Biomarkers patent-application February 2009
The production of ultra high activity 11C-labeled hydrogen cyanide, carbon dioxide, carbon monoxide and methane via the 14N(p,α)11C reaction (XV) journal August 1975