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US3893915A - Fluorspar ore flotation - Google Patents

Flotation of fluorite from calcareous gangue with a fatty acid collector in an aqueous alkaline ore pulp is improved by adding an alkali metal bisulfite salt or an alkali metal thiosulfate salt before adding the collector. US3893915A - Fluorspar ore flotation - Google Patents Fluorspar ore flotation .

Flotation Reagents - Mineral Processing & Metallurgy

Flotation Frothers What is the Function of Frothers. The function of frothers in flotation is that of building the froth which serves as the buoyant medium in the separation of the floatable from the non-floatable minerals. Frothers accomplish this by lowering the surface tension of the liquid which in turn permits air rising through the pulp to accumulate at the surface in bubble form.

Flotation Process For Fluorspar - nnguniclub

Jun 11, 2017 · Fluorite and Fluorspar: Mineral uses and properties Fluorite has physical properties that allow it to That company is developing an underground mine to exploit a large vein of fluorite which they hope will be in Fluorite Flotation SeparationOre Beneficiation,Flotation 3.The preparation method of fluorite flotation agent A process .

Improvement Effect of FeSO4·7H2O on Flotation Separation .

Improvement Effect of FeSO4·7H2O on Flotation Separation of Scheelite from Fluorite Yuan Hu,† Yuqing Huang,‡ Rongdong Deng,*,‡,§ Lin Ma,‡ and Wanzhong Yin‡,§ †College of Chemical Engineering and ‡School of Zijin Mining, Fuzhou University, Fuzhou 350108, China §Fuzhou University-Zijin Mining Group Joint Research Center for Comprehensive Utilization of Mineral Resources, Fuzhou

Flotation Research of a Fluorite Ore

Separating fluorite from quartz and calcite by forth flotation can be both in weak-acidized (pH 6.0) condition and weak alkali (pH 9.0) condition. The experiment results have shown that ZnSO4 can decrease the depression that water glass works on the fluorite, and acidized water glass has a selective inhibition on the silicate minerals. The close flowsheet protocolled in the experiment can .

PROCESS FOR THE FLOTATION OF FLUORITE - MONTECATINI .

Nov 30, 1971 · More particularly, we have found new reactants which, used together with those previously employed for the flotation of fluorite, provide a simple and inexpensive solution to the problem. In accordance with the present invention, an ethoxylated alkyl phenol and an ethoxylated fatty acid are employed to condition the ore prior to flotation.

Fluorite particles as a novel calcite recovery depressant .

Mar 01, 2019 · A small amount of fluorite or low-concentration sodium fluoride solution was added as a flotation reagent, and the mixture was agitated for more than 3 min. BHA mixed with lead nitrate at a mass ratio of 1:2 was then added, and the mixture was agitated for a further 3 min. The pH was measured and adjusted before flotation.

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US3893915A - Fluorspar ore flotation - Google Patents

Flotation of fluorite from calcareous gangue with a fatty acid collector in an aqueous alkaline ore pulp is improved by adding an alkali metal bisulfite salt or an alkali metal thiosulfate salt before adding the collector. US3893915A - Fluorspar ore flotation - Google Patents Fluorspar ore flotation .

The Role of Water Glass in the Flotation Separation of .

sulphide ores [13], especially for the flotation of fluorite [7]. However, the flotation separation of fluorite from quartz using water glass is not so effective, as there is always a small amount of fine quartz (less than 10 m) in the fluorite concentrate. The floated fine quartz in fluorite concentrate has been reported to be the result of .

Replacing Petrov's process with atmospheric flotation .

Jan 01, 2020 · This mineral is commonly found with other calcium-bearing minerals in mineral ore deposits, such as calcite (CaCO 3), apatite [Ca 10 (PO 4) 6 F 2] and fluorite (CaF 2). Flotation is a surface-chemistry-based process for the separation of fine solids that takes advantage of wettability differences at solid particle surfaces.

Flotation depressants / Applications / Home - Pionera

PIONERA is part of the world's leading producer of natural modified polymers. Our products are environmentally friendly and utilize a natural and renewable source of raw material. We offer an extensive network of production plants and sales offices, ensuring optimal service to global and local customers. Our highly skilled & dedicated research and development teams have extensive technical .

How calcite and silica can be depress in froth flotation .

How calcite and silica can be depress in froth flotation of fluorite? I have already tried sodium silicate and quebracho. . sodium silicate can be good dispersing and depressing agent .

Flotation Research of a Fluorite Ore

Separating fluorite from quartz and calcite by forth flotation can be both in weak-acidized (pH 6.0) condition and weak alkali (pH 9.0) condition. The experiment results have shown that ZnSO4 can decrease the depression that water glass works on the fluorite, and acidized water glass has a selective inhibition on the silicate minerals. The close flowsheet protocolled in the experiment can .

Calcite-Apatite Flotation - Columbia University

flotation is to depress the flotation markedly in the neutral to alkaline pH (pH < 13) range. A comparison of the effects of added inorganics with those of the supernatants suggests that the depressing effect of apatite supernatant is the combined effect of,calcium and phosphate species in solution. The effect

Selective Separation of Fluorite, Barite and Calcite .

These two depressants allowed selective separation of the three minerals through sequential flotation. The flotation of mixed minerals showed that 94% of the calcite was successfully depressed by the valonea extract, and 95% recovery of the fluorite was achieved in the subsequent flotation with sodium fluosilicate depressing barite.

Separation of arsenic from fluorite ore, by means of .

Sep 28, 1982 · A procedure for the separation of arsenic from fluorite by means of magnetization and flotation of the pyrites present in the fluorite ore, and in which arsenic is associated, irrespectively of the chemical form in which said arsenic is present.

Separation of arsenic from fluorite ore, by means of .

Sep 28, 1982 · A procedure for the separation of arsenic from fluorite by means of magnetization and flotation of the pyrites present in the fluorite ore, and in which arsenic is associated, irrespectively of the chemical form in which said arsenic is present.

Mechanism of the activating and depressing effects of .

Mechanism of the activating and depressing effects of sodium fluosilicate in the flotation of minerals by oleate soap. G. S. Berger & E. V. Bulatova Soviet Mining volume 5, pages 452 – 456 (1969)Cite this article

Fluorspar/Fluorite Beneficiation Process Plant

Dec 21, 2016 · 2 A Fluorspar Flotation Process Flowsheet. The flowsheet illustrated above is typical for the average "Sub-A" Fluorspar Flotation mill treating up to 100 tons of mine run ore per 24 hour day.

Flotation studies of fluorite and barite with sodium .

The recovery of fluorite decreased more rapidly than barite when the SHMP concentration was increased to 2.29 × 10 −6 M and the difference in recovery was about 60%. With a further increase in the SHMP dosage, the difference in recovery between fluorite and barite reduced. 3.3 Flotation .

Selective flotation of fluorite from barite using .

The micro-flotation tests presented that TSP exhibited selective depression for barite in fluorite flotation, which achieves the flotation separation of fluorite from barite at approximately pH 8.5 when using NaOl as a collector.

Improving fluorite flotation from ores by dispersion .

It has been found that the dispersion processing with CMC as dispersant could effectively improve the fluorite flotation, increased the fluorite recovery from 72% to 78.5% at the same concentrate .

Calcite-Apatite Flotation - Columbia University

flotation is to depress the flotation markedly in the neutral to alkaline pH (pH < 13) range. A comparison of the effects of added inorganics with those of the supernatants suggests that the depressing effect of apatite supernatant is the combined effect of,calcium and phosphate species in solution. The effect

Concentrating fluorspar by froth flotation - Nasa

The process of concentrating fluorspar by froth flotation of pulps containing fluorspar values, comprising adding to such a pulp sodium fluoride, a lignin sulphonate, and a fluorspar collecting agent selected from the class consisting of fatty acids and soaps, and subjecting said pulp to froth flotation to recover the fluorspar. 2.

Beneficiation of Haematite from Fluorspar Tailings by .

Beneficiation of Haematite from Fluorspar Tailings by Reverse Flotation Willie Nheta, Thembelihle Portia Lubisi Mineral Processing and Technology Research Centre, Department of Metallurgy, School of Mining, Metallurgy and Chemical Engineering, Faculty of Engineering and the Built Environment, University of Johannesburg

Enrichment of Molybdenum and Fluorite by Flotation of .

calcite strongly in preference of fluorite at ambient temperature, leading the fluorite flotation to be achieved at a lower temperature [4]. Molybdenum and fluorite are important materials for modern industry. Therefore, production of fluorite and molybdenum from fluorite ore .

Selective Separation of Fluorite, Barite and Calcite with .

These two depressants allowed selective separation of the three minerals through sequential flotation. The flotation of mixed minerals showed that 94% of the calcite was successfully depressed by the valonea extract, and 95% recovery of the fluorite was achieved in the subsequent flotation with sodium fluosilicate depressing barite.

The Effect of Sodium Silicate in Nonmetallic Flotation Systems

Flotation responses of these minerals in the presence of potassium oleate and sodium silicate are presented and compared with electrokinetic data. Colloidal silica appears to be the species principally responsible for calcite depression, while silicate anion is the species responsible for fluorite depression.

Flotation depressants / Applications / Home - Pionera

Selective depressants for mineral flotation processes. PIONERA's BioPolymers are versatile additives that increase returns for our customers. Application results in important savings with minimal Health, Safety or Environmental issues.