University of Wisconsin Digital Collections
Link to University of Wisconsin Digital Collections
Link to University of Wisconsin Digital Collections
Ecology and Natural Resources Collection

Page View

Bureau of Mines / Minerals yearbook metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)

DeHuff, Gilbert L.
Manganese,   pp. 757-769 ff. PDF (1.5 MB)

Page 761

plant. The product was used largely for the manufacture of face brick. The
equipment was transferred to the Camden, N.J., plant where similar operations
 Manganese Ore.—All manganese ore prices are negotiated, dependent
in part on the characteristics and quantity of ore offered, delivery terms,
and fluctuating ocean shipping rates. In March, the American Metal Market
dropped its price quotation for manganese ore containing 46% to 48% manganese
from 59 to 63 cents, nominal, to 58 to 61 cents, nominal, per long ton unit,
c.i.f. eastern seaboard and Gulf ports. The quotation for ore containing
48% to 50% manganese was lowered at the same time from 63 to 68 cents, nominal,
to 61 to 64 cents, nominal, same basis. Both of the new quotations were maintained
for the remainder of the year. 
 Manganese Alloys.—The domestic producer price for standard high-carbon
ferromanganese having a minimum manganese content of 78% remained at $190
per long 
to be conducted. The company's Brownsville, Tex., and Wilmington, Del., plants
also continued to grind imported manganese ores for the same purpose. 
ton, f.o.b. producer plant or shipping point. Contract sales in quantity
apparently were at lower prices to be competitive with imported alloy. Metals
Week continued to quote the 74% to 76% manganese grade of imported standard
highcarbon ferromanganese at $176 to $178 per long ton of alloy, delivered
in Pittsburgh or Chicago, until April. Stating that few consumers continue
to use that grade, the paper changed the quotation then to $178 to $180 for
standard alloy containing 78% manganese. 
 Manganese Metal.—The price of standard electrolytic manganese metal
again remained unchanged for another full year at 33.25 cents per pound,
f.o.b. producer plant, for shipments of 30,000 pounds or more. 
 Exports of ferromanganese were 6,842 short tons valued at $1,511,864, compared
with 4,526 tons valued at $1,204,819 in 1971. Of the 1972 total, Canada took
2,956 tons; Sweden, 2,392 tons; Mexico, 1,322 tons; Colombia, 65 tons; France,
51 tons; and small quantities went to each of nine other countries. Exports
classified as "manganese and manganese alloys, wrought or unwrought, and
waste and scrap" totaled 1,504 tons valued at $1,020,743 in 1972, and 1,203
tons valued at $911,785 in 1971. This classification includes electrolytic
manganese metal and manganese-copper alloys, but it does not indude ferromanganese.
Exports of ore and concentrate containing more than 10% manganese totaled
25,108 short tons at a value of $3,137,104, compared with 55,413 tons at
$2,683,070 in 1971. The 1972 exports were believed to consist almost entirely
of imported manganese dioxide ore exported after grinding, blending, or otherwise
 The average grade of imported manganese ore was 49% manganese in both 1972
and 1971. More than half of the total 
continued to come from Gabon and Brazil. There were no imports of manganiferous
ores containing more than 10% but less than 35% manganese. 
 Ferromanganese imports for consumption were the highest on record. However,
a good portion of the 1972 total came from foreign companies in which United
States producers or consumers have substantial interest. Silicomanganese
imports for consumption totaled 38,674 short tons containing 25,901 tons
of manganese. Sources and tonnage (gross weight) were as follows: Norway,
26,801; Mexico, 4,364; Spain, 2,536; Yugoslavia, 2,162; Japan, 1,653; Sweden,
551; France, 336; and West Germany, 271. Imports for consumption classified
as unwrought manganese metal, except alloys, and waste and scrap of such
metal, totaled 4,121 short tons, compared with 2,870 tons in 1971. Of the
1972 quantity, 2,375 tons came from Japan, 1,639 tons from the Republic of
South Africa, 105 tons from the Netherlands, and 2 tons from Canada. A small
quantity, 5 pounds having a value of $117 per pound, came from Switzerland.

Go up to Top of Page