Bureau of Mines / Minerals yearbook metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)
Stipp, Henry E.
Iron oxide pigments, pp. 683-687 ff. PDF (463.3 KB)
684 MINERALS YEARBOOK, 1972 CONSUMPTION AND USES Consumption of iron oxide pigments increased sharply in 1972 as the result of high levels of paint, lacquer, and varnish sales. Record high construction ' activity for the second consecutive year and increased sales of automobiles, appliances and furniture reportedly were responsible for the increased consumption of paint, lacquer, and varnish. Shortages of some grades of iron oxide pigments occurred as a result of overall economic expansion, dollar devaluation, and price controls. Domestic supplies of yellow iron oxide were inadequate and imports were curtailed by decreased shipments from abroad. Foreign producers preferred to sell their products overseas where they could obtain a higher price. Several new paint formulas were introduced that incorporated yellow iron oxide and yellow organic pigments as a replacement for yellow lead chromate. Inventories depleted in the last quarter of 1971 were being replaced during most of 1972, however increased consumption slowed inventory rebuilding. Micaceous iron oxide, imported from Austria, was gaining increasing acceptance as a primer for protection of iron and steel structures against corrosion. A new group of red and yellow synthetic iron oxides became available for use in automobile finishes, aluminum coatings, and stains. Iron oxide pigments were used in paints, rubber, plastics, concrete products, paper, magnetic ink, fertilizers, and animal ' food. They were used also in ferrite applications such as television components, filters in radio equipment, computer memory cores, door latches and seals, small electric motors, and inductor and microwave devices. Iron oxide material was used in miscellaneous applications such as abrasives, welding rod coatings, soil conditioners, foundry sands, and automobile brake linings. Data are not collected by the Bureau of Mines on specific uses for iron oxide pigments, and the figures given in table 2 do not necessarily reflect all sales of iron oxide pigment material for uses other than pigments. Table 2.—Finished iron oxide pigments sold by processors in the United States, by kind - Pigment 1971 Quantity Value (short tons) (thousands) 1972 Quantity (short tons) Value (thousands) Natural: Brewn: Iron oxide (metallic) 1 Umbers: 13,453 $2, 109 19,074 $3,467 Burnt Raw 4,441 1,196 1,136 309 5,376 1,541 1,441 435 Red: Iron oxide Sienna, burnt Pyrite cinder Yellow: 27,518 903 (2) 1,938 401 (2) 35,541 1,201 (2) 2,547 531 (2) Ocher' Sienna, raw Total natural Manufactured: 10,181 787 2,088 277 6,223 992 495 389 58,479 8,258 69,948 9,305 Black: Magnetic Brown: Iron oxide Red: 3,692 6,272 2,384 2,284 3,149 6,539 1,376 2,748 Pure red iron oxides: Calcinedcopperas Otherchemicalprocesses Venetian red 20,540 11,492 467 6,696 2,861 106 19,185 14,426 505 6,499 4,531 135 Yellow: Iron oxide 22,469 7,643 31,867 11,118 Total manufactured Unspecified including mixtures of natural and manufactured red iron oxides 64,932 4,897 21,974 1,105 75,671 28,773 26,407 4,618 Grand total 128,308 31,337 174,392 40,330 ' Includes black magnetite and Vandyke brown. 2 Pyrite cinder included with red iron oxide for 1971 and 1972. Includes yellow iron oxide.
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