Chemistry of inorganic compounds – Halogen or compound thereof – Binary compound containing metal
Patent
1984-02-15
1986-04-08
Straub, Gary P.
Chemistry of inorganic compounds
Halogen or compound thereof
Binary compound containing metal
203 91, C30B 2912
Patent
active
045812187
ABSTRACT:
The invention relates to a process for the preparation of high purity alpha mercuric iodide for use as a starting material source for the growth of monocrystals usable for nuclear detection.
This process consists of synthesizing alpha mercuric iodide and subjecting the thus obtained alpha mercuric iodide to a purification treatment consisting of at least one vacuum distillation stage at a temperature of at least 255.degree. C.
For this distillation stage, use is made of a reactor having three zones kept at different temperatures. The iodide to be purified is introduced into the first zone kept at at least 255.degree. C. The mercuric iodide vapors pass through the second zone kept at a higher temperature before being condensed in the air-cooled third zone.
REFERENCES:
patent: 3969182 (1976-07-01), Carlston
patent: 4091084 (1978-05-01), Schieber
patent: 4347230 (1982-08-01), Nicolau
M. Schieber et al., "Purification, Growth and Characterization of Alpha Mercuric-Iodide Crystals for Gamma-Ray Detection", Journal of Crystal Growth, 24/25, (1974) pp. 205-211.
Clara E. Miller, "The Effect of Mercuric Iodide and Ammonium Chloride on Glass", J. Physical Chemistry, (1931) pp. 2985-2992.
Muheim et al, "Spark Source Mass Spectrographic Analyses of .alpha.-HgI.sub.2 : Comparison of Samples from Different Laboratories", Nuclear Instruments and Methods, 213 (1983) pp. 39-42.
Y. F. Nicolau, "Technology of High Purity HgI.sub.2 ", Nucl. Instrum. Methods Phys. Res., 213(1), 13-18 (1983).
Y. F. Nicolau, "High-Purity Mercuric Iodide", J. Chem. Technol. Biotechnol., Chem. Technol., 33A(7), 350-60 (1983).
T. Kobagashi et al, "Mass Spectrographic Analysis and SEM Investigation of .alpha.-HgI.sub.2 Crystals Grown by Static Sublimation", Journal of Electrochemical Society, vol. 130, No. 5, (1983) pp. 1183-1191.
Journal of Applied Chemistry of the USSR, vol. 51, No. 3, part 1, Mar. 1976, Plenum Publishing Corporation, New York-G. G. Gospodinov: "Conditions for Production of High-Purity Mercury Diiodide", pp. 520-522.
Commissariat a l''Energie Atomique
Leeds Jackson
Straub Gary P.
LandOfFree
Process for the preparation of high purity alpha mercuric iodide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of high purity alpha mercuric iodide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of high purity alpha mercuric iodide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2065163