The Recovery of Nitrate From Chilean Caliche

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Excerpt from The Recovery of Nitrate From Chilean Caliche: Containing a Vocabulary of Terms an Account of the Shanks System, With a Criticism of Its Fundamental Features, and a Description of a New Progress Since the date of the first manufacture of nitrate from the caliche found in the (then) Peruvian pampa, during the early years of the 19th century, the developments in the industry have been almost entirely in connection with the application of new and improved processes for the purpose of making profitable the treatment of material of decreasing nitrate content. The average ley, or nitrate percentage, of the caliche treated during the first fifty years probably averaged at least 75 per cent. In the most primitive method of beneficiation the rich caliche was boiled with water or mother liquor in large copper pans by the direct application of heat, and the nitrate was then crystallised from the resulting strong solution. 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.