C-11 cyanide production system
Abstract
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, 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.sub.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.
- Inventors:
- Issue Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1410328
- Patent Number(s):
- 9821285
- Application Number:
- 14/551,141
- Assignee:
- BROOKHAVEN SCIENCE ASSOCIATES, LLC (Upton, NY)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01C - AMMONIA
- DOE Contract Number:
- AC02-98CH10886
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Nov 24
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Kim, Dohyun, Alexoff, David, Kim, Sung Won, Hooker, Jacob M., and Ferrieri, Richard A. C-11 cyanide production system. United States: N. p., 2017.
Web.
Kim, Dohyun, Alexoff, David, Kim, Sung Won, Hooker, Jacob M., & Ferrieri, Richard A. C-11 cyanide production system. United States.
Kim, Dohyun, Alexoff, David, Kim, Sung Won, Hooker, Jacob M., and Ferrieri, Richard A. Tue .
"C-11 cyanide production system". United States. https://www.osti.gov/servlets/purl/1410328.
@article{osti_1410328,
title = {C-11 cyanide production system},
author = {Kim, Dohyun and Alexoff, David and Kim, Sung Won and Hooker, Jacob M. and Ferrieri, Richard A.},
abstractNote = {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, 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.sub.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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 21 00:00:00 EST 2017},
month = {Tue Nov 21 00:00:00 EST 2017}
}