scholarly journals Recycling of Waste Moulding Sands with New Binders

2013 ◽  
Vol 13 (2) ◽  
pp. 43-48
Author(s):  
I. Izdebska-Szanda ◽  
M. Angrecki ◽  
A. Palma

Abstract This paper presents the results of research which is part of studies carried out under the project POIG.01.01.02-00-015/09 "Advanced Materials and Technologies", one of the aims of which is to introduce new, environment-friendly, inorganic binders to the production of castings from non-ferrous metals. The paper presents the results of research on the management of waste moulding sands prepared according to the new technology, including their multiple reclamation and management of post-reclamation waste. Studies of multiple reclamation are a continuation of the preliminary research described earlier. The programme of the studies described in this paper also included validation of the results under industrial conditions.

The primary-metal-producing industry, which is concerned with making metal from ore rather than from waste materials and scrap, is at present undergoing major changes in the technological processes and methods which are used. In both ferrous and non-ferrous metallurgy, application of the concepts and techniques generally described as ‘process engineering’ is having important effects on the design and operation of new manufacturing capacity. In non-ferrous extractive metallurgy there are, in addition, more fundamental changes taking place. Metals are being produced by using chemical reactions which have never before been employed for this purpose. There are several reasons why new processes and the new technology associated with their use are now being accepted by an industry which is by tradition extremely conservative. These reasons must be separately identified if the relative advantages of traditional and new methods of treating a particular ore are to be understood. It is convenient to outline first the kind of process generally referred to as ‘pyrometallurgical’ taking as an example an ore containing nickel, copper and platinum metals with gold.


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