Bureau of Mines / Minerals yearbook: Metals and minerals 1978-79
Year 1978-79, Volume 1 (1978-1979)
Rowland, T. John, Jr.; Cammarota, V. A., Jr.
Antimony, pp. 63-70 PDF (797.4 KB)
70 MINERALS YEARBOOK, 1978-79 Overpelt, S.A., began construction in 1978 on a new plant to recover antimony oxide from lead smelter residues. In mainland China a new mine designed to produce 3,000 tons of antimony in its first stage of development was opened in the Hochih area of Guangxi Province in 1979. Australia.—Antimony was produced by Vam Ltd. at its Hillgrove mines near Armidale in New South Wales. The Blue Spec gold-antimony mine in Nullagine, Western Australia, closed in January 1979, and the equipment was sold. Bolivia.—Bolivia remained the world's largest producer of antimony in 1978 and 1979. Bolivian antimony reserves were estimated to be approximately 400,000 tons at yearend 1978. Empresa Nacional de Fundiciones (ENAF) continued to produce metal and oxide for export. ENAF operated its Vinto refinery at about 75% of capacity in 1979 because of low prices for antimony. Bolivian concentrates and cobbed ore were exported to the United States, Europe, and Japan. Canada.—Antimony metal was produced in Canada as a byproduct of lead smelting and refming. Cominco Ltd. operated a smelter and refinery at Trail, British Columbia, where antimony was recovered in the form of antimonial lead. Brunswick Mining and Smelting Corp. produced antimony metal at its lead smelter near Belledune, New Brunswick. Consolidated Durham Mines and Resources Ltd. mined and concentrated antimony near Fredrickton, New Brunswick. The principal ore mined was stibnite. Concentrates averaging 66% antimony were exported mainly to Europe, but smaller amounts were shipped to the United States. In British Columbia, Placer Development Ltd. and Equity Silver Mines Ltd. began construction of a mine and mill at the Sam Goosly silver-copper deposit. After startup in mid-1980, antimony production was expected to be 1,870 tons per year. South Africa, Republic of.—Antimony concentrates were produced from the Athens, Gravelotte, Monarch, Mulati, United Jack, Weigel, and Free State mines of Consolidated Murchison Ltd. (CML). The mines are located on the northern Transvaal's "Antimony Line" in the Swaziland schists of the Murchison Range, where stibnite and other sulfides associated with gold exist in large quantities. Antimony was produced as a concentrate and as a high-grade cobbed ore. Most of CML's production was shipped to Europe and North America. Antimony Products (Pty.), Ltd. (APL), continued to produce crude antimony oxide for export using CML concentrates. APL's capacity in early 1978 was 7.2 mfflion pounds per year of crude antimony oxide. Due to increased demand for antimony oxide, the company began installation of two new kilns in 1979 for converting the sulfide to oxide. Thailand.—Antimony was produced in the north, central, and southern regions. The major producing Provinces were Phrae and Lampang in the North region, Kanchona Bun, Chanthaburi, Rayung, and Rat Bun in the central area, and Nakhon Si Thammarat and Surat Thani in the south. Antimony was exported mainly to Malaysia, Taiwan, Japan, India, North America, Europe, and South Korea. Turkey.—The major producing mine, the Turhal, is situated near Tokat in central Anatolia. Substantial reserves are located in the Balikesir-Kutahya and Aydin regions. The Turkish Mineral Research and Exploration Institute (MIA) reported that reserves of antimony ore were 2.4 million tons in 1977. Yugoslavia.—Rudarsko Topionicki Bazen Zajaca (RTB-Zajaca) operated the Rajiceva Gora antimony mine and mill on Kopaonik Mountain in Serbia. Reserves of antimony ore at Rajiceva Gora were estimated to be 10 to 15 million tons. The mine was expected to reach full ore production of approximately 300,000 tons per year by 1980. A new lead refinery under construction at Trepca will provide increased production of antimony byproduct. ' Physical scientist, Section of Nonferrous Metals. 2Supervisory physical scientist, Section of Nonferrous Metals.
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