Bureau of Mines / Minerals yearbook: Metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)
Kurtz, Horace F.
Bauxite, pp. 189-204 PDF (1.6 MB)
BAUXITE 191 ' Capacity may vary depending upon the bauxite used. The production of alumina and aluminum oxide products at the eight alumina plants in the continental United States and the plant in the Virgin Islands totaled 6.98 million short tons in 1972, a decline of 3%. The total production included 6.23 million tons of calcined alumina, 671,000 tons of commercial alumina trihydrate, and 70,000 tons of tabular, activated, and other alumina. The production of commercial alumina trihydrate increased 12% and reached a level more than double the output in 1968. Shipments of alumina were 6.97 million tons, valued at $497 million. Approximately 6.02 million tons were shipped to primary aluminum plants. The chemical indisstry, including the producers of aluminum fluoride fluxes for aluminum plants, received the second largest tonnage, and most of the rest of the alumina was shipped to producers of abrasives, ceramics, and refractories. Table 6.—Capadties of domestic alumina plants, December 31, 1972 1 - (Thousand short tons per year) Company and plant Capacity Aluminum Co. of America: Bauxite, Ark 375 Mobile, Ala 1,025 Point Comfort, Tex 1,350 Total 2,750 Martin Marietta Aluminum, Inc.: St. Croix, V.1. 360 Kaiser Aluminum & Chemical Corp.: Baton Rouge, La 1,025 Gramercy, La 800 Total 1,825 Ormet Corp.: Burnside, La 600 Reynolds Metals Co.: Hurricane Creek, Ark 840 Corpus Christi, Tex 1,385 Total 2,225 Grand total 7,760 CONSUMPTION AND USES The consumption of bauxite in the United States (inc'uding the Virgin Islands) in 1972 decreased 2% to 15.4 million long tons (dry basis). Most of the decline resulted from lower production of calcined alumina for the aluminum industry. About 87% of the bauxite consumed was imported ore. The production of alumina and related products accounted ' for 93% of the total bauxite consumption. An average of 2.13 long dry tons of bauxite was used to produce 1 short ton (calcined basis) of alumina. The two alumina plants in Arkansas were based mainly on the use of domestic bauxite, and the other seven alumina plants used only imported ore. Bauxite consumption by the refractories industry reached a record high level of over 400,000 long tons (dry basis). Nearly all of this bauxite was used in the calcined form, and 82% was imported, mainly from Table 7.—Bauxite consumed in the United States, by industry (Thousand long tons, dry equivalent) Year and industry Do- mestic Foreign Total 1 1971: Alumina Abrasive' Chemical Refractory Other Total'2 1972: Alumina Abrasive 2 Chemical Refractory Other Total'2 1,665 ~175 71 W 12,968 207 3223 309 W 14,633 207 319 380 79 1,911 13,707 15,619 1,733 - - 3142 75 W 12,626 253 3218 329 W 14,359 253 284 403 76 1,950 13,425 15,375 W Withheld to avoid disclosing individual company confidential data, included with "ChemicaL" ' Data may not add to totals shown because of independent rounding. 2 Includes consumption by Canadian abrasive industry. Includes other uses.
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