Bureau of Mines / Minerals yearbook: Metals and minerals 1978-79
Year 1978-79, Volume 1 (1978-1979)
Moore, Christine M.
Rare-earth minerals and metals, pp. 735-742 PDF (915.0 KB)
735Rare-Earth Minerals and Metals By Christine M. Moore1 Domestic production of rare-earth oxide (REO) contained in bastnäsite and monazite increased sharply in 1979, due primarily to the sizeable increase in bastnäsite production. Molycorp, Inc., and W. R. Grace & Co. were the principal processors of rare earths in 1978 and 1979. Petroleum catalysts and metallurgical applications were the major end uses both years. Legislation and Government Programs.—Shipments of rare earths from the U.S. General Services Administration totaled 2,973 short tons REO in 1978 and 1,226 short tons REO in 1979. Stocks of REO contained in sodium sulfate, an interinedi ate product in the processing of monazite, totaled 505 tons at yearend 1979. Government stocks of yttrium oxide remained unchanged at 237 pounds. The Tokyo Round of negotiations was completed in 1979, resulting in new tariff agreements between the developed nations of the world. The agreements, which affected rare-earth tariffs, placed most nations on a most-favored-nation status with generally lower rates to be phased in, or staged, over an 8-year period beginning Jan. 1, 1980. The new rare-earth tariff schedule is shown in table 1. Table 1.—U.S. import duties Tariff classification . Artic e Most favored nation (MFN) Non-MFN Jan. 1, 1980 Jan. 1, 1987 Jan. 1, 1980 601.12, 601.45 Ore and concentrate Free Free Free. 418.40, 418.42, 418.44 Cerium chloride, oxide, compounds — — — 14% ad valorem 7.2% ad valorem 35% ad valorem. 423.003 - — - — Rare-earth oxides except cerium oxide — 4.8% ad valorem 3.7% ad valorem 25% ad valorem. 632.38 632.78 Rare-earth metals (including scandium and yttrium) Alloys wholly or almost wholly of rare- 4.8% ad valorem 47 cents per 3.7% ad valorem 32 cents per 25% ad valorem. $2 per pound. 632.79 earth metals (mischmetal) Other alloys wholly or almost wholly of rare-earth metals pound 46 cents per pound plus 5.6% ad valorem pound 20 cents per pound plus 2.4% ad valorem $2 per pound plus 25% ad valorem. 755.35 Ferrocerium and other pyrophoric alloys 46 cents per pound plus 5.6% ad valorem 22 cents per pound plus 2.6% ad valorem $2 per pound plus 25% ad valorem.
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