Showing papers on "Mineral processing published in 1985"
TL;DR: In this article, it was shown that it is possible to obtain a concentrate containing 65% iron, 1.8% alumina and 1.4% silica with an iron recovery of 80% from the tailings of Barsuan iron ore plant.
80 citations
01 Jan 1985
15 citations
Patent•
05 Jan 1985
TL;DR: In this article, Al ion is added together with an aliphatic or an aromatic sulphonate collector to adjust the concn. of Al ion concn to 140-560mg/l, then collector is added and the flotation is performed at 50-90 deg.C of the liquid temp. of the pulp.
Abstract: PURPOSE:To perform stable separation and concentration and to obtain rare earth mineral of high quality with high yield by performing mineral dressing by adding Al ion together with aliphatic or aromatic sulphonate type collector. CONSTITUTION:In the process for separating and concentrating rare earth mineral from complex ore contg. rare earth mineral (e.g. bastnaesite) by flotation, Al ion is added together with an aliphatic or an aromatic sulphonate collector (e.g. alkyl sulphonate) to adjust the concn. of Al ion concn. to 140-560mg/l. In this stage, after adding Al ion to the pulp, the pH is adjusted to 2-6, then the collector is added and the flotation is performed at 50-90 deg.C of the liquid temp. of the pulp. As a result, rare earth mineral of high quality is stably separated with high yield from the complex ore contg. many gengue minerals together with the rare earth mineral.
6 citations
Journal Article•
TL;DR: According to a mathematical model, each mineral has its own liberation energy characteristic curve which can be plotted as mentioned in this paper, and the relations between liberation, mill speed and charge volume are also pr
Abstract: According to a mathematical model, each mineral has its own liberation-energy characteristic curve which can be plotted. The relations between liberation, mill speed and charge volume are also pr ...
4 citations
TL;DR: The use of magnetic separators in the various mineral processing facilities in South Africa is described in this article, where a large number of them are used to recover medium in dense medium plants and the potential use of high gradient and/or high intensity magnetic separation in the recovery of gold, uranium, and phosphate minerals is discussed.
Abstract: The use of magnetic separators in the various mineral processing facilities in South Africa is described. A large number are used to recover medium in dense medium plants. The manufacture of various types of magnetic separation machines by three local suppliers is highlighted. The potential use of highgradient and/or high–intensity magnetic separation in the recovery of gold, uranium, and phosphate minerals is discussed.
3 citations
TL;DR: This paper covers fractional composition analysis of ore and mineral products, separation phenomenae and performance functions of typical flowsheets and prediction of grade and recovery, and design of optimal multiproperty-multiconcentrate technologies and of minimal equipment plants.
Abstract: This paper covers: (1) Introductory definitions, (2) fractional composition analysis of ore and mineral products, (3) separation phenomenae and performance functions of typical flowsheets and prediction of grade and recovery, (4) performance (separation) functions of typical flow sheets; prediction of grade and recovery and (5) design of optimal multiproperty-multiconcentrate technologies and of minimal equipment plants.
3 citations
Patent•
02 May 1985
TL;DR: In this paper, a method and installation for mineral processing adapted to form a slurry from an intermittent supply of a particulate mineral and to feed the slurry selectively to one or more mineral processing devices such as spirals, cyclones, sieve bends or the like in accordance with the pulp density of slurry.
Abstract: A method and installation for mineral processing adapted to form a slurry from an intermittent supply of a particulate mineral and to feed the slurry selectively to one or more mineral processing devices such as spirals, cyclones, sieve bends or the like in accordance with the pulp density of the slurry. The method comprises feeding the particulate mineral at an irregular rate to a slurrying vessel where the mineral is slurred with water, conveying the slurry to metering means, sensing, directly or indirectly, the pulp density of the slurry being conveyed and adjusting the metering means to return the slurry to the slurrying vessel and or to direct the slurry to one or more mineral processing devices in accordance with the pulp density of the slurry. An installation for carrying out the method is described.
3 citations
Journal Article•
TL;DR: Samples were collected from the Stekenjokk and Malmberget concentrators, operated by Boliden Mineral AB and Luossavaara-Kiirunavaara AB respectively as mentioned in this paper.
Abstract: Samples were collected from the Stekenjokk and Malmberget concentrators, operated by Boliden Mineral AB and Luossavaara-Kiirunavaara AB respectively. The Stekenjokk ore consists of massive pyrite ...