Bureau of Mines / Minerals yearbook: Metals and minerals 1978-79
Year 1978-79, Volume 1 (1978-1979)
Gallium, pp. 359-361 ff. PDF (250.8 KB)
Gallium By Benjamin Petkof1 359 The domestic gallium industry continued to provide a significant portion of U.S. demand although gallium imports increased in 1978 and 1979. Data on world production and consumption were not available. Gallium was consumed for the production of various gallium compounds used to produce electronic devices. Legislation and Government Programs.—.New tariff rates for imported gallium metal and compounds resulted from the 1979 Tokyo round of tariff negotiations giving most nations "most-favored nation" status. The tariffs for these nations will decline annually, in stages, beginning January 1, 1980 and ending January 1, 1987. Table 1.—Salient gallium statistics in the United States (Kilograms) 1975 1976 1977 1978 1979 Production W W NA NA NA Importsforconsumption Consumption Price per kilogram 6,830 7,493 $750-$800 4,920 8,880 $750-$800 2,884 8,789 $5004600 3,721 8,908 $500-$600 6,401 9,461 $510 NA Not available. W Withheld to avoid disciosin g company pro prietary data. DOMESTIC PRODUCTION The Aluminum Co. of America, using proprietary technology at its Bauxite, Ark., alumina plant, recovered gallium as a coproduct from residues of its alumina production process. Eagle-Picher Industries, Inc., produced gallium metal, oxide, and trichloride from zinc production residues at its Quapaw, Okla., facility. Production data are not available. Based on consumption and import data, total domestic output was thought to have declined in 1978 and 1979. CONSUMPTION Gallium consumption was strong in 1978 and 1979 and was above that of 1977. The electronics industry had the greatest domand for high-purity material to fabricate light-emitting diodes, semiconductors, and other electronic devices. Small quantities of metal were used to prepare specialty alloys and in research and development. Gallium oxide was used for the preparation of phosphors. General acceptance by the public of van ous electronic devices that use galliumbased components helped sustain gallium demand. Continued interest in the development of gallium-based direct solar energyconversion cells for the production of electricity and further development of fiberoptic light-transmission cables actuated by gallium-based light-emitting diodes, may stimulate demand for gallium and gallium compounds in the near future.
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