Download or read book Tests to Improve the Recovery of Pyrite from Norseman Gold Mines Ore written by R. P. Thomas and published by . This book was released on 1953 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flotation Test on a Pyrite pyrrhotite Ore from Norseman W A for the Recovery of Sulphur Content written by and published by . This book was released on 1968 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Recovery of Pyrite from Gold Ore by Gravity Separation written by R. N. Guest and published by . This book was released on 1980 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flotation Test on a Pyrite pyrrhotite Ore from Norseman Western Australia for the Recovery of Sulphur Content written by and published by . This book was released on 1968 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ore Dressing written by and published by . This book was released on 1964 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Department of Mines for the Year written by Western Australia. Dept. of Mines and published by . This book was released on 1960 with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Recovery of Pyrite and Gold from Acid leach Residues from the Merriespruit Gold Mine written by PW. Overbeek and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Batch flotation tests on acid-leach residue from Merriespruit Gold Mine showed that concentrate grades of up to 40 per cent sulphur can be readily obtained, although at low recoveries. Flotation tests at the pilot plant gave better results than did the batch tests. The initial results showed that 76 per cent of the sulphur content of the feed can be recovered in a concentrate that assays 47,0 per cent sulphur. Attempts to improve the recovery at the expense of the grade were not successful, the highest recovery obtained being 79,7 per cent at a concentrate grade of 36,8 per cent sulphur. The gold recovery at that stage was 47,2 per cent. A gradual deterioration in flotation response was noted as the tests progressed, and this was attributed to possible deterioration of the feed material due to oxidation. However, this was not proved conclusively. It was concluded that, by use of the flotation conditions recommended by the sponsor, the required grade of 38 per cent sulphur could be readily obtained at recoveries of more than 75 per cent of the sulphur present in the feed material. In a second phase of the project, cyanidation tests were carried out on roasted and unroasted flotation concentrates produced in the pilot plant. The average gold extraction for the roasted material was 68 per cent. Additions of lime were found to be important, and an excess of lime resulted in lower gold extractions. The extraction of gold from unroasted material was not as successful as from the roasted material. The maximum recovery from unroasted material after fine grinding was 63 per cent. The consumption of lime was high in all these tests, and 22 kg of lime per ton of concentrate was used for the test in which the maximum gold extraction was obtained. Finally, settling tests were carried out on tailings so that the settling characteristics in an acid medium could be established. It was found that, in the pH range 3,5 to 4,5, the settling rate was two to three times lower than it had been as a pH range 3,5 to 4,5, the settling rate was two to three times lower than it had been at a pH value of 11,0.
Download or read book IMM Abstracts written by Institution of Mining and Metallurgy (Great Britain) and published by . This book was released on 1954 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mines Annual Report written by Western Australia. Department of Mines and published by . This book was released on 1961 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flotation and Cyanidation Tests on a Gold copper Sulfide Ore from Cooke Mont written by Abraham L. Engel and published by . This book was released on 1950 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gold Recovery from Pyrite Flotation Mill Products by Cyanidation Progress Made Up to 1st May 1967 written by and published by . This book was released on 1967 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a previous report, proposals were made relating to experimental work to be carried out on the problems relating to cyanidation of pyrite-flotation products. A later proposal was that tests would be done in the laboratory and on a plant to be selected. Some of the laboratory tests have since been carried out. For plant tests, the reduction plant at the Loraine Gold Mine was selected, and preliminary tests have been conducted there. The present report will outline progress to date.
Download or read book The Recovery of Pyrite and Gold from Acid leach Residues from the Merriespruit Gold Mine written by and published by . This book was released on 1984 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Recovery of Pyrite and Gold from Acid leach Residues from the Merriespruit Gold Mine written by Peter William Overbeek and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minutes and Votes and Proceedings of the Parliament with Papers Presented to Both Houses written by Western Australia. Parliament and published by . This book was released on 1962 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flotation Test on a Pyrite pyrrhotite Ore from Norseman Western Australia for the Recovery of Sulphur Content written by H. R. Dunstan and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Flotation of Pyrite from Buffelsfontein Gold Mine written by and published by . This book was released on 1988 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the investigation was the reduction of the losses of gold and pyrite in the flotation plant at Buffelsfontein Gold Mine. Laboratory-scale batch tests showed that the recovery of pyrite is decreased in the presence of sulphates of magnesium, calcium, and iron, or in the presence of cyanide if copper sulphate is absent. The recoveries are increased with increased conditioning times and residence times. Both the grade of concentrate and the rate of flotation are influenced by the temperature of the pulp, and conditioning with sulphur dioxide is beneficial. The grade of the concentrate is influenced by the dosage of collector. The present dosage of 100 g/t is satisfactory. Various methods for the oxidation of residual cyanide were tested. Alkaline flotation after the oxidation of cyanide by chlorination and by sodium sulphite and air yielded similar recoveries to the standard acid flotation, but the sulphur grade of the concentrate was lower. The relationship between residence time and flotation performance was quantified. The results of laboratory batch tests were scaled up and used in a computer simulation of the flotation circuit. The recycling of the recleaner tailings to the head of the rougher bank would increase the recoveries of gold and sulphur by 8 and 10,4 per cent respectively. The recoveries could be further increased by increased residence times.
Download or read book The Mining Magazine written by and published by . This book was released on 1959 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
