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Excerpt from A Manual of Flotation Processes Flotation, as the term is applied to ore concentration, means the separation of one of the constituents of an ore from the remainder by causing it to float at or above the surface of a pulp consisting of the finely pulverized ore and water. Minerals that float have a metallic, adamantine, or resinous luster. Minerals with vitreous, pearly, or earthy luster do not float, as the term is at present used in the art of concentration. It must not be understood, however, that the float concentrate in a flotation operation is free from these latter minerals. As a matter of fact, in many flotation concentrates the minerals of non-metallic luster predominate. Their inclusion is due in part to their being mechanically entrapped and held, as on a screen, by the bubbles composing the froth, in part to the inclusion of pulp in thick bubble walls, and in part to the removal of some of the pulp, as such, with the floating concentrate. Ores amenable to concentration by flotation. Almost any ore consisting of a mineral of metallic, resinous, or adamantine luster associated with the usual rock-forming minerals, can be concentrated by flotation. In the great majority of cases the part of the ore that floats is the valuable portion D but if the constitution of an ore were such that the valuable mineral had a non-metallic luster, and the gangue a metallic luster, the floated portion would constitute the tailing while the valuable portion would remain submerged and be drawn off as residual pulp. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Handbook of Flotation Reagents: Chemistry, Theory and Practice is a condensed form of the fundamental knowledge of chemical reagents commonly used in flotation and is addressed to the researchers and plant metallurgists who employ these reagents. Consisting of three distinct parts: 1) provides detailed description of the chemistry used in mineral processing industry; 2) describes theoretical aspects of the action of flotation reagents3) provides information on the use of reagents in over 100 operating plants treating Cu, Cu/Zn, Cu/Pb, Zn, Pb/Zn/Ag, Cu/Ni and Ni ores.* Looks at the theoretical aspects of flotation reagents* Examines the practical aspects of using chemical reagents in operating plants* Provides guidelines for researchers and engineers involved in process design and development
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