Bureau of Mines / Minerals yearbook: Metals and minerals 1978-79
Year 1978-79, Volume 1 (1978-1979)
Collins, Cynthia T.
Iron oxide pigments, pp. 457-464 PDF (730.7 KB)
DOMESTIC PRODUCTION Table 2—Finished iron oxide pigments sold by processors in the United States by kind Pigment 1978 Quantity Value (short tons) (thousands) 1979 Quantity (short tons) Value (thousands) Natural: Biack:Magnetite Brown: 10,707 $1,219 8,075 $906 Ironoxide1 8,151 2,260 10,075 3,481 Umbers: Burnt Raw Red: 5,546 2,040 2,868 936 4,495 1,782 2,665 970 . Ironoxide2 Sienna, burnt 40,476 665 3,596 416 40,618 647 3,953 464 Yellow: Ocher3 Sienna,raw Totainaturai4 Synthetic: Brown: Iron oxide5 Red: Iron oxides Yellow:Ironoxide Other:Speciaityoxides Totaisynthetic4 Mixtures of natural and synthetic iron oxides Grandtotal4 7,588 745 913 380 6,865 683 945 399 75,918 12,588 73,240 13,782 11,351 26,433 25,916 8,969 10,364 25,267 22,725 7,951 11,404 33,344 24,550 10,291 11,319 32,540 22,651 12,053 72,669 3,923 66,307 2,935 79,590 3,205 78,563 1,830 152,510 81,830 156,036 94,175 ' Includes Vandyke brown. ' Includes pyrite cinder. 3lncludes yellow iron oxide. 4Data may not add to totals shown because of independent rounding. ' Includes synthetic black iron oxide. 458 MINERALS YEARBOOK, 1978-79 Table 2 reflects sales data compiled from responses by 19 companies (see table 3) to the Bureau of Mines annual canvass. This represents 95% coverage of all companies that produce finished natural and/or synthetic iron oxide pigments from raw materials. The increase in production in 1979 was due to the entrance into the domestic market of Mobay Chemical Corp.'s new synthetic pigment plant in West Virginia. The gain in 1979 production was partially offset by the loss of natural oxide production from Mineral Pigments Corp.; also, a softening of demand in the last quarter of the year resulted in slight decreases in annual sales for some companies. Domestic mine production of crude iron oxide pigments is shown in table 1, and producers are listed at the end of table 3. Cleveland-Cliffs Iron Co. closed the Mather underground iron mine at Negaunee, Mich., on July 31, 1979. Ore from the mine and associated beneficiating plants was used principally in pig iron production, but crude hematite was also shipped annually for pigments. The mine was the principal domestic producer of crude iron oxide pigments for many years. Five steel companies produced byproduct iron oxide from plant wastes in 1978-79. Regenerated oxide from spent pickle liquor was used principally in the manufacture of ferrites, and some was used for pigments in industrial coatings. About one-third ol the iron oxides derived from flue dust were used as a foundry sand additive, one-third in welding electrode manufacture, and onethird in fertilizer production.
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