Chemistry of inorganic compounds – Selenium or tellurium or compound thereof
Patent
1981-10-14
1982-11-09
Hearn, Brian E.
Chemistry of inorganic compounds
Selenium or tellurium or compound thereof
75 99, 75 3, 23313FB, C01B 1900
Patent
active
043584306
ABSTRACT:
Selenium-bearing materials are treated to convert selenium values to water-soluble form in a process which comprises producing a wet pellet product of uniform composition having a specified moisture content and size from an aqueous slurry containing the selenium-bearing material and dissolved sodium carbonate-containing reagent. In a preferred embodiment the slurry is pH-adjusted to neutralize free acid and/or to precipitate nonferrous base metals. sp
REFERENCES:
patent: 2048563 (1936-07-01), Poland
patent: 2378824 (1945-06-01), Betterton et al.
patent: 2592421 (1952-04-01), Heilmann
patent: 2948591 (1960-08-01), Handwerk
patent: 2981603 (1961-04-01), Tuwiner
patent: 3231413 (1966-01-01), Berquin
patent: 3533829 (1970-10-01), Quanquin
patent: 3627486 (1971-12-01), Nakano
patent: 3816074 (1974-07-01), Low
patent: 4094668 (1978-06-01), Yannopoulos et al.
J. H. Schloen et al., "Treatment of Electrolytic Copper Refining Slimes" in J. of Metals, No. 5, pp. 764-777 (1950).
D. M. Chizhikov et al., "Selenium and Selenides", Collet's (Publishers) Ltd., London and Wellingborough, pp. 57-115 (1968).
A. A. Kudryavtsev, "The Chemistry and Technology of Selenium and Tellurium", Collet's (Publishers) Ltd., London and Wellingborough, pp. 189-205 (1974).
R. A. Zingaro et al. (Ed.), "Selenium", Van Nostrand Reinhold Company, pp. 31-60 (1974).
W. J. Mead (Ed.), "The Encyclopedia of Chemical Process Equipment", Reinhold Publishing Company, pp. 48-49 (1964).
O. S. North, "Mineral Exploration, Mining, and Processing Patents, 1970", p. 184 (abst. of Russian Pat. No. 225,448).
Chem. Abst., vol. 31, 3222.sup.6 (1937).
Chem. Abst., vol. 29, 3792.sup.1 (1935).
H. B. Ries, "Granulaterzeugung in Mischgranulatoren und Granuliertellern", Aufbereitungs Technik, No. 12, pp. 639-646 (1975).
R. K. Monahan and F. Loewen, "Treatment of Anode Slimes at the Inco Copper Refinery", presentation at the 1972 Annual Conference of the CIM, Aug. 27-30, 1972, Halifax, Canada.
Bell Malcolm C. E.
Sridhar Ramamritham
Victorovich Grigori S.
Hearn Brian E.
Inco Limited
Kenny Raymond J.
Leff Miriam W.
LandOfFree
Process for treatment of selenium-bearing materials 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 treatment of selenium-bearing materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for treatment of selenium-bearing materials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-745555