Gold recovery from arsenopyrite carbon-containing concentrates obtained by ore flotation concentration has been studied. The breakdown of concentrates was carried out with HNO3 (1·5–3 mol/l) at 80–85°C. Thiosulphate leaching (0·5 M Na2S2O3 + 0·5 M NH3) of gold from the broken down concentrates was investigated.
LODEYSHCHIKOVV. V.: ‘Refractory gold ores and main principles of their metallurgical processing (in Russian)’, (ed. LaskorinB. N.), Hydrometallurgy of gold, 1st edn, Moscow, Nauka, 1980, 3-18.
2.
KOYLOVI. N. and KAMINSKIYY. D.: ‘Arsenic problems during processing of raw materials (in Russian)’, Khimiya v Interesakh Ustoychivogo Razvitiya, 1997, 5, 221–258.
3.
BEATTIEM J. V. and ISMAYA.: ‘Applying the redox process to arsenical concentrates’, J Min., 1990, 42, 31–35.
4.
ANON: ‘Bacyrchik pours first gold by redox process’, Min. Mag, 1994, 171, 58.
5.
KARAVAYKOG. I.: ‘Biotechnology of metals (in Russian)’, Moscow, Khimiya, 1989, 227.
6.
TORMAA. E.: ‘Hydrometallurgy of gold’, Proc. 8th Int. Biotechnol. Symp., Paris, France, October 1989, vol. 2, 1158–1168.
7.
POLKINS. I. and YUDINAI. N.: Non-roasting scheme for gold recovery from refractory arsenic-containing ores and, concentrates using bacterial leaching (in Russian)’, (ed.LaskorinB. N.), Hydrometallurgy of gold, 1st edn, Moscow, Nauka, 1980, 67-71.
8.
THOMASK. C.: ‘Alkaline and acidic autowinning of refractory gold ores’, J. Min., 1991, 43, 16–19.
9.
LASKORINB. N., CHUGAEVL. V., MOSKVICHEVAG. I. and MASLENITSKIYS. N.: ‘Autoclave-cured oxidation of sulfide arsenical gold-containing concentrates (in Russian)’, (ed. LaskorinB. N.), Hydrometallurgy of gold, 1st edn, Moscow, Nauka, 1980, 52-58.
10.
SHNEERSONL. V. V Y M. and NIKITINM. V.: ‘Autoclave-cured processes for processing of gold-containing concentrates (in Russian)’, Tsvetnye Metally, 1998, 2, 56–60.
11.
KUNZABAROVA. K., POPOVE. L., ORELM. A. and AKHMEDOVH. N.: ‘Breakdown of gold-containing sulfide arsenical concentrates by nitric acid (in Russian)’, (ed. LaskorinB. N.), Hydrometallurgy of gold, 1st edn, Moscow, Nauka, 1980, 23-25.
12.
DEMOPOULOSG. P. and PAPANGELAKISV. G.: ‘Recent advances in refractory gold processing’, CIM Bull., 1989, 931, 85–91.
13.
EMELIANOVP. D. D, Y E. and KARPUKHINA. I.: ‘Leaching of sulfide gold-containing concentrates (in Russian)’, Tsvetnye Metally, 1993, 4, 7–8.
14.
KHOLMOGOROVA. G., PASHKOVG. L. and KONONOVY S.: ‘Chemical methods for preparation of refractory gold-containing concentrates to gold leaching by complex-forming dissolvents’, Proc. 1st Int. Sci. Conf. Metallurgy of the XXI Century - a step into the Future’, Krasnoyarsk, Russia, September 1998, 361.
15.
BJORLINGG. and KOLTAG. A.: ‘Oxidizing leach of sulfide concentrates and other materials catalyzed by nitric acid’, Proc. VII Int. Mineral Processing Congr., Part III. New York, 1964, 127-138.
16.
PRATERJ. D., QUENEAUP. B. and HUDSONT. J.: ‘Nitric acid route to processing copper concentrates’, AIME Trans., 1973, 254, 117–122.
17.
BJORLINGG., FALDTI., LINDGRENE. and TOROMANOVI.: ‘A nitric acid route in combination with solvent extraction for hydrometallurgical treatment of chalcopyrite’, (eds.YannopoulosT. C., AgarwalT.C.), AIME extractive metallurgy of copper, Las Vegas, AIME, 1976, 726-737.
18.
VAN WEERTG., FAIRK. J. and SCHNEIDERJ. C.: The NITROX process for treating gold bearing arsenopyrites’, 116th Ann. TMS/AIME Meet., Denver, February 1986.
19.
SHANGY and VAN WEERTG.: ‘Iron control in nitrate hydrometallurgy by autoclaving hydrolysis of iron (III) nitrate’, Hydrometallurgy, 1993, 33, 273–290.
20.
RAUDSEPPR., PETERSE. and BEATTIEM. J. V.: ‘Process for recovering gold and silver from refractory ores’, US Patent No. 4647307, 14 November 1985.
21.
HAWD. R. and BUTERL. J.: ‘Recovery of precious metal values from refractory ores’, US Patent No. 5236492, 29 July 1992.
22.
YONGYINL., DOMUZ., HUIGUANGC. and YONGDEG.: ‘Kinetics of leaching of pyrite in nitric acid presence (in Chinese, with English abstract)’, J. Cent.-S. Inst. MM. Metal., 1993, 24, 760–765.
23.
GUANGXIANGX., TAOZHIT., HANLINY and WEIS.: ‘Reactions of pyrite in catalytical oxidation acid leaching system’, Trans. Nonferrous Met. Soc. China, 1995, 5, 43–48.
24.
ANON. ‘Minprac gains worldwide rights to REDOX gold recovery process’, Queensland Gov. MM..1, 1991, 92, 17–19.
25.
VAN WEERTG. and FAIRK. J.: ‘Capital and operating costs of the NITROX PROCESS® for auriferous (arseno)pyrites’, Extr. Met. 89: Pap. Symp., London, July 1989, 629–650.
26.
LOSEVN. F. and SMIRNOVAA. N.: ‘Principles of X-ray fluorescence analysis (in Russian)’, Moscow, Nauka, 1982, 235.
27.
ERHARDH.: ‘X-ray fluorescence analysis (in Russian)’, Moscow, Mir, 1985, 1–150.
28.
BEAMISHF. E.: ‘The analytical chemistry of the noble metals’, Oxford, Pergamon, 1966, 1–425.
29.
UMLANDF., JANSSENA., THIERIGD. and WUNSCHG.: ‘Theorie und praktische Anwendung von Komplexbildnern’, Frankfurt am Main, Akademische Verlagsgesellschaft, 1971, 1–402.
30.
FALKOVAS. N.N, O.B. and KURSKIYA. N.: ‘Ionic state of gold in solutions (in Russian)’, J. Anal. Chem. (Moscow), 1994, 39, 1213–1215.
31.
IGLESIASN. and GARRANZAF.: ‘Refractory gold-bearing ores: a review of treatment methods and recent advances in biotechnological techniques’, Hydrometallurgy, 1994, 34, 383–390.
32.
POLLARDJ. H.: ‘A handbook of numerical and statistical techniques’, Cambridge, Cambridge University Press, 1977, 1–325.
33.
ZIPPRIAND., RAYHAVANS. and VILLSONJ. P.: ‘Gold and silver extraction by ammonical thiosulfate leaching from a rhyolite ore’, Hydrometallurgy, 1988, 19, 361–375.
34.
ABBRUZZESEC., FORNARYF. and MASSIDDAR.: ‘Thiosulfate leaching for gold hydrometallurgy’, Hydrometallurgy, 1995, 39, 265–276.
35.
MINEEVG. G. and PANCHENKOA. F.: ‘Dissolvents for gold and silver in hydrometallurgy (in Russian)’, Moscow, Nauka, 1994, 1–241.
36.
ZHUCHKOVI. A. and BUBEEVP. P.: ‘Sorption of gold from thiosulfate solutions on activated carbons (in Russian)’, Tsvetnaya Metallurgiya, 1992, 3/4, 85–91.
37.
ZHAOJ., WUZ. and CHENJ.: ‘Recovery of gold from thiosulfate solutions by liquid extraction’,.J. Trans. Nonferrous Metal, 1997, 7, 31–38.
38.
ZHUCHKOVI. A. and BUBEEVP. P.: ‘Benefication of ores (in Russian)’, Irkutsk, Irkutskgeologiya, 1987, 1–122.
