1. It found increasing use for mechanising the various forms of mineral processing . 2. Economic contributors include mineral processing , mining, agriculture, local commerce, tourism, and transportation. 3. Preigerzon was also a scientist and inventor in the mineral processing field. 4. Recently, however, there has been an increase in mining and mineral processing . 5. In this role, he led a number of improvements in mineral processing . 6. Strong acids, sulfuric acid in particular, are widely used in mineral processing . 7. Wiking Mineral also signed a purchase agreement for a mineral processing plant. 8. The West Medal for outstanding papers on mineral processing is another. 9. In addition to food processing and agribusiness, construction and non-metallic mineral processing are important. 10. Several associate companies acquired after 1994 manufacture mineral processing equipment.