The Recovery of Nitrate From Chilean Caliche: Containing a Vocabulary of Terms an Account of the Shanks System, With a Criticism of Its Fundamental ... of a New Progress (Classic Reprint) - Tapa dura

Sinopsis

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

The introduction Of the Shanks system resulted in notable economies, as compared with previous practice, with the result that caliche of lower ley could be treated at a profit. The grade Of the material sent to the maquinas for the 20 years subsequent to the introduction of the Shanks system was probably fixed at a minimum of over 25 per cent., and in most cases averaged well over 30 per cent. Nitrate.

With the reduction in grade Of caliche being treated, a considerable decrease in percentage extraction Of nitrate, by existing methods, was observable. At all times, however, a veil Of mystery has been drawn over the actual results Of practice, and reliable figures were impossible to Obtain.

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