Bureau of Mines / Minerals yearbook: Metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)
Diatomite, pp. 511-513 ff. PDF (250.4 KB)
511Diatomite By Benjamin Petkof1 Domestic diatomite production in 1972 increased 8% in quantity and 9% in value compared with 1971 figures. The United States maintained its status as a major world diatomite producer. Exports of processed diatomite to countries throughout the world increased significantly in quasitity and value over those of 1971. DOMESTIC PRODUCTION Production increased in the major producing States of California and Nevada, but declined in Arizona and Oregon and remained unchanged in Washington. California retained its place as the largest producing State, followed by Nevada, Washington, Arizona, and Oregon. During 1972 nine companies, with a total of 11 operations, mined and prepared diatomite for various industrial end uses. This was an increase of one producing company from the number reported in 1971. The bulk of the diatomite produced during the year was supplied by the following companies: Johns-Manville Products Corp., with facilities near Lompoc, Calif.; GREFCO, Inc., with operations near Mina, Nev., and Lompoc, Calif.; Eagle-Picher Industries, Inc., with operations near Sparks and Lovelock, Nev.; and Kenite Corp., Division of Whitco Chemical Corp., with an operation near Quincy, Wash. The remaining producers were: Superior Company near San Manuel, Ariz.; Basalt Rock Co. Inc., near Napa, Calif.; Airox, Inc., near Santa Maria, Calif.; The United Sierra Division, Cyprus Mines Corp. near Fernley, Nev.; and A. M. Matlock near Christmas Valley, Oreg. The Kenite Corp. completed an expansion program at the Quincy, ~Tash. plant with the addition of a new larger kiln and an air classifier. A new pattern has appeared in the domestic distribution of diatomite filter aid that partially replaces the bagged shipment of the processed diatomite. A bulk distilbution station was established at Rollins Terminals in Norristown, Pa., by the Cclite Division of the Johns-Manville Products Corp. Prepared filter aid will be shipped from Lompoc, Calif., to Norristown in bulk pneumatic discharge hopper cars, unloaded into silos, and shipped in bulk truck loads to consumers in the eastern United States. Johns-Manville Products Corp. also announced the introduction of a system to recover spent diatomite filter aid. The system recovers up to 60% of the filter aid from the filter cake using either a batch or continuous method of operation. 1 Physical scientist, Division of Nonme:talik Minerals. Table 1.—Diatomite sold or used by producers in the United States 1966—68' 1969 1970 1971 1972 Domestic production (sales) short tonsAveragevalueperton 1,881,877 $54.18 598,482 $60.96 597,636 $54.63 535,318 $64.25 5T5, 089 $65.19 ' Annual figures are confidential, prior to 1969.
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