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An Investigation Into The Pelletizing And Prereduction Of Transvaal Chromites
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Book Synopsis An Investigation Into the Pelletizing and Prereduction of Transvaal Chromites by :
Download or read book An Investigation Into the Pelletizing and Prereduction of Transvaal Chromites written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A programme of work was initiated so that the possibility for the agglomeration of Transvaal chromite-fines by pelletization could be investigated. The use of cementitious binders did not yield promising results, binder additions of up to 10 per cent failing to produce an agglomerate that would be suitable as feed for an electric-smelting furnace. Further laboratory and pilot-plant studies showed that high-quality pellets could be made from chromite bonded with small amounts of bentonite and hardened by heat treatment at temperatures of the order of 1000 degrees C. An investigation was also done into the reduction behaviour of pellets containing amounts of stoichiometric carbon up to that required for complete reduction. The results showed that the maximum degree of reduction that could be obtained was approximately 75 per cent, and that these pellets had the physical properties that would make them amenable to smelting in a submerged-arc electric-smelting furnace.
Book Synopsis The Prereduction of Chromites from the UG-2 Reef by : A. R. Barnes
Download or read book The Prereduction of Chromites from the UG-2 Reef written by A. R. Barnes and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a detailed laboratory study of the metallurgical behaviour, during prereduction, of pellets made of chromites from the UG-2 Reef. The pellets, which contain solid reducing agent, were reduced under argon at temperatures between 950 and 1500 degrees C, and the progress of reduction was followed by use of thermogravimetric analysis. The analyses of gaseous reaction products by gas chromatography for their carbon monoxide and carbon dioxide contents were in excellent agreement with the theoretical analyses calculated from the reduction rate. Microscopic examination indicated that reduction occurs via a mechanism similar to that for other Transvaal chromites, although at a higher rate. The presence of small quantities of sodium chloride in the pellets was shown to accelerate the reaction, particularly in the early stages of reduction and at lower temperatures. A new method for the dissolution of the metal and carbides in the partially reduced pellets showed that significant chromium metallization occurs only after more than 70 per cent of the iron has been metallized, and clarified the relationship between the degree of reduction and the degree of metallization.
Book Synopsis Agglomeration 77 by : K. V. S. Sastry
Download or read book Agglomeration 77 written by K. V. S. Sastry and published by . This book was released on 1977 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Minerals Yearbook by : United States. Bureau of Mines
Download or read book Minerals Yearbook written by United States. Bureau of Mines and published by . This book was released on 1980 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1977 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Unrestricted Mintek Publications by :
Download or read book Unrestricted Mintek Publications written by and published by . This book was released on 1966 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts Index written by and published by . This book was released on 1978 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Unrestricted Mintek Publications Issued from 1966 to 1982 by : Helena Wilhelmina Glen
Download or read book List of Unrestricted Mintek Publications Issued from 1966 to 1982 written by Helena Wilhelmina Glen and published by . This book was released on 1983 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication lists the 834 unrestricted reports, 449 papers, 41 patents, and 4 other technical publications that were issued as publications of the National Institute for Metallurgy (NIM) and the Council for Mineral Technology (Mintek) from 1966 (the year of NIM's inception) to 31st December, 1982. For ease of reference, these publications are also classified under research topics. Also included are details of the periodical issued by Mintek and a list of its current miscellaneous publications, which include the annual report, and brochures and leaflets of various kinds.
Book Synopsis Current Awareness in Particle Technology by :
Download or read book Current Awareness in Particle Technology written by and published by . This book was released on 1978 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings, Twelfth Congress of the Council of Mining and Metallurgical Institutions, Johannesburg, South Africa, 3rd-7th May, 1982 by : Council of Mining and Metallurgical Institutions. Congress
Download or read book Proceedings, Twelfth Congress of the Council of Mining and Metallurgical Institutions, Johannesburg, South Africa, 3rd-7th May, 1982 written by Council of Mining and Metallurgical Institutions. Congress and published by . This book was released on 1982 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Iron & Steelmaker written by and published by . This book was released on 1977 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mining Engineering written by and published by . This book was released on 1977 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 3- includes v. 190- of the Transactions.
Download or read book Proceedings written by and published by . This book was released on 1982 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Skillings' Mining Review written by and published by . This book was released on 1999 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Pelletizing of Chromite Fines : a Preliminary Investigation of the Preparation of Cold-bonded Pellets by :
Download or read book The Pelletizing of Chromite Fines : a Preliminary Investigation of the Preparation of Cold-bonded Pellets written by and published by . This book was released on 1971 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: After a brief review of various techniques of agglomeration, an account is given of tests done on chromite pellets bonded with dicalcium silicate slag and hardened by autoclaving. The results show that satisfactory pellets can be made of chromite (90 per cent) bonded with activated slag (10 per cent), the chromite having been milled to 75 per cent minus 200 mesh or finer. Calcium hydroxide (2 per cent) is used for the activation of the slag. Pellets of chromite having the same grading but bonded with Portland cement by the Grangcold process can also be successfully made.
Book Synopsis Journal of the South African Institute of Mining and Metallurgy by : South African Institute of Mining and Metallurgy
Download or read book Journal of the South African Institute of Mining and Metallurgy written by South African Institute of Mining and Metallurgy and published by . This book was released on 1983 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ICAM 81 written by J. P. R. De Villiers and published by . This book was released on 1983 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: