Bureau of Mines / Minerals yearbook: Metals and minerals 1978-79
Year 1978-79, Volume 1 (1978-1979)
Alverson, Larry J.
Rhenium, pp. 743-749 ff. PDF (941.1 KB)
Rhenium By Larry J. Alverson1 In 1978, consumption of rhenium increased 71% over that of 1977, reaching a record level of approximately 12,500 pounds. In 1979, consumption fell to about 9,500 pounds as supply remained extremely tight Demand came primarily from bimetallic catalyst manufacturers as the need for high octane low lead gasoline increased Imports of ammornum perrhenate reached a record 11,192 pounds in 1978, an increase of 83% over the prior record year of 1977, but declined significantly in 1979. Prices increased in 1978, and reached $2,000 per pound by late 1979. Table 1 —Salient rhenium statistics (Pounds of contained rhenium) Estimate W Withheld to avoid disclosing company proprietary data ' Includes 850 pounds of perrhenic acid. DOMESTIC PRODUCTION Rhenium was recovered from domestic ores by three companies in 1978 and by one company in 1979. Most of the rhenium recovered in the United States was tollrefined from Canadian molybdenite concen trate (MoS,) and returned to the owner for sale. Kennecott Corp. resumed recovery of rhenium in late 1978 after being inactive since 1975 and was the sole producer of rhenium from domestic ores in 1979. 743 1975 1976 1977 1978 1979 Mineproduction Consumptione Imports (metal) Imports (ammonium perrhenate) 2000 6,000 59 e966 1500 8,300 82 4,047 7,300 148 6,111 W 12,500 449 112,042 W 9,500 927 8,299 Stocks Dec 31 21000 18300 17300 W W CONSUMPTION AND USES Estimated consumption of rhenium in 1978 increased over 71%, compared with that of 1977, reaching a record level of approximately 12,500 pounds. Consumption dropped to about 9,500 pounds in 1979 as stocks became depleted and supply could not keep pace with demand. The increase in demand over previous years was due to strong demand for bimetallic petroleum reforming catalysts used in producing unleaded and low-lead, high-octane gasoline. The petroleum industry uses several types of catalytic reformers to produce highoctane, low-lead gasoline. Aggregate capacity of semiregenerative bimetallic reformers increased nearly 13% from 1977 to 1979, to a record 58% of total reforming capacity. Capacity of cyclic bimetallic reformers increased over 120% during the same period, and capacity of all other types of reformers increased 55%. In 1972, semiregenerative bimetallic reformers comprised only 28% of total reforming capacity, compared with 45% for comparable monometallic reform-
http://rightsstatements.org/vocab/NoC-US/1.0/| As a work of the United States government, this material is in the public domain.| For information on re-use see: http://digital.library.wisc.edu/1711.dl/Copyright