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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)


Page 203

2,177 
534 
1,089 
 BAUXITE 203 
 Japan.—According to the Japanese Light Metal Smelters Association,
suppliers' exports of bauxite to Japan increased 16% in 1972 as -follows:
Quantity (thousand 
Supplier long tons) 
 1971 1972 
Australia: 
 Comalco Ltd 2,186 
 Nabalco Pty. Ltd. (Gove). 78 Indonesia: P.N. Aneka Tambang - 895 
Malaysia: 
 Ramunia Bauxite Co 
 Southeast Asia Bauxites, Ltd 
 258 220 
 451 475 
 Total 3,868 4,495 
 Nippon Light Metal Co., Ltd., put into operation its 397,000-short-ton-per-year
alumina plant at Tomakomai, Hokkaido. Initial production was delayed until
plans for offshore disposal of the red mud from the plant were changed to
a disposal site on land. Mitsui Alumina Co. began production at its 220,000-ton-per-year
Wakamatsu alumina plant, KyUshU, using bauxite from Gove, Australia. The
capacity of the plant was to be doubled by 1975. Chofu Alumina Co., formed
by Mitsui Mining and Smelting Co. Ltd. and Ardeco, a ' consortium of Japanese
primary aluminum producers, postponed until at least 1975 plans for completion
of a 550,000ton-per-year alumina plant to -use bauxite from the Solomon Islands
(British). 
 A joint venture, composed of Alcoa (75%) and Morimura Bros., Inc. (25%),
was formed to construct facilities by 1974 to produce tabular alumina for
use as a refractory material. 
 Solomon Islands (British).—Mitsui Mining and Smelting Co. of Japan
continued the development of bauxite de-posits on Rennell Island. Initial
shipments to Japan were expected to begin in 1973. Conzinc Riotinto of Australia,
Ltd., continued exploration of bauxite deposits on Wagina Island. T-he Wagina
bauxite occurs as a 
fine-grained clayey material high in mobture. Reserves were expected to total
30 million long tons. 
 Surinam.—Early in March the Billitosi Mine Workers Union struck the
Bifliton mine for higher wages -for the 1,500 workers. The strike had little
effect on total production for the year. 
 Reynolds Metals Co. continued its exploration for bauxite in the Bakhuys
Mountains in western Surinam. Until such time as the company can show 50
million tons of commercial grade bauxite, Surinarn was not expected to proceed
with building the railroad from the deposit to the port of Apoera on the
Corantijn River. 
 Exports of bauxite were down 3% for the year, but exports of alumina were
up 9% over the quantity in 1971. 
 Taiwan.—The Government-owned ' Táiwan Aluminium Corp. (Talco)
imported its bauxite supply -from Malaysia and Australia. Talco -planned
to expand its alumina production cap-acity to 154,000 short tons by 1975.
 Turkey.—Construction of an alumina plant at Seydi~ehir about 180 miles
south of Ankara was expected to be completed in 1973-. The plant will have
a capacity of 220,000 short tons and will use bauxite from deposts near Akseki
in the western Taurus Mountains, where reserves haw been estimated at 30
million tons. 
 Yugoslavia.—An agreement was reported to have been signed between
the U.S.S.R. and the Yugoslav enterprise Energoinvest to develop bauxite
mines in Bosnia-Hercegovina and to construct a 660,000—ton-capacity
alumina plant at Zvornik. The total cost of the venture was estimated at
5200 million. T-he U.S.S.R. will provide $130 million in credit, which will
be repaid in alumina and bauxite. Production from the mines, located at Vlasenica,
Jajce, and Bosanska Krupa, are to be increased to over 2.5 million tons by
1976. 
TECHNOLOGY 
 Alunite, a hydrous potassium aluminum sulfate mineral, continued to be investigated
as a commercial source of alumina in the United States. The only known commercial-size
plant is operating in the U.S.S.R., at Sumgait, near the Caucasus mountains.
A new process to recover ferti 
lizers and either aluminum salts or alumina from alunite reportedly was developed
in Mexico in 1971 and was expected to be -used in a small plant to be built
at Salamanca. 
 In this -process the potassium in alunite was dissolved for 10 to 15 minutes
in a 


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