New PDF release: Handbook of extractive metallurgy: Precious Metals,

By Fathi Habashi

ISBN-10: 3527287922

ISBN-13: 9783527287925

Extract the entire metals info you would like! A wealth of information on metals and their extraction is published during this finished guide. the purpose of this publication is to supply a transparent description of the way a specific steel is extracted industrially from assorted uncooked fabrics, and on what its vital compounds are. the current paintings is a suite of fifty eight articles written by means of over 280 experts. It offers millions of surest illustrations, diagrams and charts, and gives hand-picked references making sure the main updated assurance. a different function of this reference paintings is its constitution. The procedure used here's in line with an financial class, which displays commonly the makes use of, incidence and fiscal price of metals. First, the ferrous metals, i.e., these utilized in the creation of iron and metal, are defined. Then, nonferrous metals are subdivided into fundamental, secondary, mild, helpful, refractory, scattered, radioactive, infrequent earth, ferroalloy metals, and, ultimately, the alkali and the alkaline earth metals are defined. The instruction manual is a necessary relief for the training metallurgist. Mining engineers, mineralogists, chemical engineers, chemists and geologists will locate it a accomplished table reference. it's of curiosity to engineers and scientists in looking an exhaustive sourcebook, and it may be found in each library.

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Extra resources for Handbook of extractive metallurgy: Precious Metals, Refractory Metals, Scattered Metals, Radioactive Metals, Rare Earth Metals, Volume 3

Example text

Disadvantages include the large space requirement and high energy consumption. The Balbach-Thurn process is used mainly in the United States. 1243 SOOOr-----------~ 10 -7 . o 10 20 25 30 40 50 60 80 90 100 110 125 133 > 159 100 Ag acetate --' a. 74 If all the nitrogen dioxide is. recycled by reaction with the water in the system to form nitric acid (see below), the overall reaction is [2] Properties. 5), is very soluble in. 8), with complete miscibility in the AgN0 3-Hp system at> 159°C. 1). 2 gIL.

2). The alloys treated may contain appreciable amounts of copper. Also, the consumption of acid is much lower than in the nitric acid process. On the other hand, this refining process requires more costly equipment and results in considerable off-gas problems. The sulfuric acid process has not been used since World War II. 6). A silver nitrate-sodium nitrate-nitric acid electrolyte is employed. Silver and the accompanying base metals are dissolved by anodic oxidation, and the concentration and current-voltage ratios are controlled so that only silver is deposited at the cathode.

Thiosulfate Complexes. 9) but have no technical importance in their own right. Their solubility in water increases as the ratio of spito silver in the complex increases. Diammine Complexes. The cationic complex [Ag(NH3)z]+ is formed when most silver compounds are dissolved in aqueous ammonia. The solution is unstable and can precipitate highly explosive fulminating silver. 7 Compounds I [98] Many unstable silver compounds are known whose decomposition can occur spontaneously and explosively. This reaction is usually initiated by heat, pressure, impact:, or abrasion.

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Handbook of extractive metallurgy: Precious Metals, Refractory Metals, Scattered Metals, Radioactive Metals, Rare Earth Metals, Volume 3 by Fathi Habashi


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