Flotation of calcareous Mussorie phosphate ore

Rao, Dandan; Narayanan, Megha; Nayak, U.B.; Ananthapadmanabhan, K.P.; Somasundaran, P.

doi:10.1016/0301-7516(85)90014-6

Cited by 28 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sodium oleate was generally employed as a reagent for calcite direct flotation from calcite-apatite or calcitescheelite ores (Abouzeid and Elgillani 2009;Elgillani 1978;Prasad et al 1994;Castro and Calero 1993;Castro et al 1996;Ribeiro et al 2003;Abdel-Khalek 2000;Rao et al 1985;Jena et al 2013;Santos et al 2015). Later, due to the complexity of several ores, few modifiers and depressants were employed to facilitate the flotation process.…”

Section: Anionic Reagentsmentioning

confidence: 99%

An Overview of Calcite Recovery by Flotation

2020

View full text Add to dashboard Cite

In general, precipitated calcium carbonate (PCC) is used as a mineral filler in paper industries; while natural calcite (CaCO3) ore is also suitable for industrial use if it is a finely ground high-grade material. Naturally, calcite is found in the form of high- or low-grade ores and it is one of the most widely distributed industrial minerals on the earth’s crust. However, it is rarely found in its pure form and is generally associated with other gangue minerals; the type and percentage of which vary from one deposit to another. These minerals are generally separated by flotation and/or magnetic separation (in the case of iron impurities). Calcite ores typically contain metal sulphide, silicate, or other calcium-containing impurity minerals, which can be removed by flotation. A tremendous amount of research has been performed on refining the flotation process for calcite ores and designing the reagents (specifically, collectors) to increase the efficiency of the process. Metal sulphide/silicate impurity minerals can be removed by the froth-flotation process using amines and xanthate collectors. Alternatively, fatty acids are used as collectors to float calcium-type minerals directly from the ore. This paper reviews the industrial practices and fundamental research related to collectors surrounding calcite ore flotation. This article presents and reviews collectors for the beneficiation of high-grade calcite ores which have been reported in the literature in order to assist judicial choice of collecting agents in flotation.

show abstract

Section: Anionic Reagentsmentioning

confidence: 99%

An Overview of Calcite Recovery by Flotation

2020

View full text Add to dashboard Cite

show abstract

“…Silicate minerals Sodium silicate [36,52] Sodium and calcium lignin sulfonates [53] Copolymers or terpolymers derived from acrylamide units and N-acrylamidoglycolic acid units [54] Carbonate minerals Carboxymethyl cellulose, citric acid, naphtyl anthyl sulfonates [42] β-naphthyl sulfonate formaldehyde condensate [43] Phosphate minerals Potassium dihydrogen phosphate, sodium pyrophosphate [46,47] Sodium tripolyphosphate, fluosilicic acid, diphosphonic acid, starch [50] Cashew gum [55] Sulfuric acid, phosphoric acid [46,56] Alkyl phosphate acids, hydrofluoric acid [57,58] Dipotassium hydrogen phosphate [59] Cellulase enzyme [60] Iron/aluminum sulfate, tartaric acid [61,62] 3.2.2. Collectors…”

Section: Mineral To Be Depressed Name Of Depressant Referencesmentioning

confidence: 99%

Review on Beneficiation Techniques and Reagents Used for Phosphate Ores

Ruan

Chi

2019

Minerals

View full text Add to dashboard Cite

Phosphate ore is an important raw material for manufacturing fertilizers and phosphorous chemical products. While most of the phosphate resources cannot be directly treated as feed stock due to the low grade of P2O5 and high content of impurities. In order to obtain a qualified phosphate concentrate, the beneficiation of the low-grade phosphate ore is, hence, of great necessity. Many beneficiation techniques can be employed to upgrade the P2O5 grade of phosphate ores based on their characteristics in chemical composition and texture. The flotation process is most widely applied to balance the P2O5 recovery ratio and cost. In this review, the dominant techniques for the beneficiation of phosphate ores are introduced. Moreover, the factors that affect the flotation of phosphate ore, including the properties of mineralogy, flotation reagents (depressants and collectors) and flotation medium, were systematically analyzed.

show abstract

“…200-250 g aluminum sulfate, 400-500 g Na-K-tartarate, 650-750 g alcohol, and 500-600 g soda per ton of feed. Rao et al (1985Rao et al ( , 1979 conducted an extensive study on an Indian carbonaceous phosphate ore. Comparison tests on hydrofluosilicic acid, starch and dipotassium hydrogen phosphate showed that K 2 HPO 4 was superior to the others in depressing phosphate in the test sample.…”

Section: Depression Of Phosphatementioning

confidence: 99%

Fine particle flotation for Florida dolomitic phosphate pebbles

Gu¹

View full text Add to dashboard Cite

Florida dolomitic phosphate pebble sample was processed using a 1.2 liter stirrertank flotation cell and 2-in ID packed flotation column aiming at achieving a phosphate concentrate containing more than 30% P 2 O 5 and less than 1.0% MgO contents at high P 2 O 5 recovery. The characteristics of fatty acid collector, FA-12 and a newly developed PA-31 collector were evaluated for frothability and dolomite flotation rate. The evaluation results show that both reagents have high frothability, but PA-31 has much stronger frothability than FA-12, and higher selectivity in separating dolomite from phosphate mineral. The mineralogical study indicates that the phosphate pebble sample needs to be ground to minus 150 µm (-100 mesh) for liberation of dolomite from phosphate. For the stirrer-tank cell, the composite phosphate concentrate has 31.66% P 2 O 5 and 0.79% MgO at the overall P 2 O 5 recovery of 92%. For packed column flotation, the composite phosphate concentrate has 30% P 2 O 5 and 0.96% MgO at the overall P 2 O 5 recovery of 91%.

show abstract

Flotation of calcareous Mussorie phosphate ore

Cited by 28 publications

References 2 publications

An Overview of Calcite Recovery by Flotation

An Overview of Calcite Recovery by Flotation

Review on Beneficiation Techniques and Reagents Used for Phosphate Ores

Fine particle flotation for Florida dolomitic phosphate pebbles

Contact Info

Product

Resources

About