| Show THE CYANIDE HANDBOOK it is a fact much lamented by those engaged in the practical application of the cyanide process that while much has been written of the mechanical side comparatively scant attention has been given to the chemical side and that only in a desultory sort of way in books dealing with the process in general or in professional papers which the average millman does not receive most of the best of the latter have been published by the south african metallurgical lurg ical societies and comparatively few copies find their way to this country the cyanide handbook by J E clennell author of chemistry of cyanide solutions has been written to supply this want its object is to bring together such scattered information as has been from time to time published on this subject in such a form as to be readily accessible to superintendents foremen chemists assayers etc A general description is given of the most approved methods in many modern plant but no attempt is made to go into the details which are liable to change as conditions require As the success of a cyanide plant depends in a large measure on the conduct of the laboratory a considerable amount of space is given to this side of the subject the first few pages of the book are devoted to a history of the cyanide process including the discovery of and its chief compounds with remarks on the development up to the first practical application of the mcarthur forest process from which time dates the commercial application of the process to metallurgy about ninety pages are devoted to the theoretical chemistry of the process the non metallic cyanides cranides cy anides the simple and complex metallic cyanides cranides cy anides the chemistry of dissolving precipitation and smelting smelling sm elting and the manufacture of cyanide the latter chapters are of considerable interest giving the processes of producing from refuse animal matter from atmospheric nitrogen and from ammonium compounds then follows a section on the preparation of ores for treatment handling of tailings classifying and the relations of amalgamating ga mating and concentration to the cyanide process the dissolving process is treated in chapters on the various methods as percolation agitation and filtration with a chapter on handling of solutions part five deals with precipitation and smelting smelling sm elting giving different methods of treatment by zinc the cleanup of the boxes acid treatment and smelting smelling sm elting and refining A chapter is devoted to special modifications of the process including such points as crushing in solution roasting aerating etc the chapter on assaying gives methods for the different ores sampling etc the section on analytical operations gives the methods for analyzing bullion cyanide solutions lut ions etc the final chapter is on the metallurgical tests such as consumption of alkali cyanide extraction preliminary tests of ore etc the book is published by the mcgraw hill book co and is tor for sale by the mining review price |
