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The Influence of Backwater Al3+ on Diaspore Bauxite

2017-10-18  Abstract:The effect of Al3+in backwater on the flotation of diaspore bauxite was investigated by micro-flotation tests and the underlying mechanisms were investigated by inductively coupled plasma (ICP) measurement, zeta potential measurements, solution chemistry analyses, and synchrotron near

A novel collector RL for flotation of bauxite

2002-3-1  The flotation properties of single minerals such as diaspore, kaolinite and pyrophllite in bauxites were investigated using RL as collector. The effects of regulators and unavoidable ions on flotation were studied. Based on the results of single minerals flotation, the separation experiments of mixed minerals and bauxite ore were carried out. The results of closed circuit test on the ore show

The Influence of Backwater Al3+ on Diaspore Bauxite

The effect of Al 3+ in backwater on the flotation of diaspore bauxite was investigated by micro-flotation tests and the underlying mechanisms were investigated by inductively

Experimental and molecular dynamics simulation

The batch flotation test was conducted in an XFG flotation cell. For each test, 600 g bauxite sample was mixed with 600 mL water and ground to 95% passing 200 mesh standard sieve. The flotation pH was regulated by Na 2 CO 3 and fixed at 9.5. Then hexametaphosphate, NaOl and BDA was added in order.

Flotation separation of diaspore from aluminosilicates

2017-11-10  Bench scale flotation tests for diasporic bauxite ore and micro-flotation tests for relevant pure minerals (including diaspore, pyrophyllite and kaolinite) were carried out at different conditions using commercial oleic acids with iodine values of 65, 121 and 131.

Characteristics of bio-desilication and bio-flotation of

2017-11-10  The bioflotation test of the mixture of bauxite and kaolinite (mass ratio 5:1) through BM-4 were carried out by a modified Hallimond tube. With results shown that the Al/Si ratios of this mixed minerals were improved from 3.05 to 8.60 after bacterial conditioning due to bauxite depression.

Ecotoxicological assessment of bauxite residue (red

Dissolved air flotation (DAF) was applied to treat bauxite effluents. Ecotoxicological assays were used to analyze the efficiency of treated effluent. Different trophic level bioindicator tests detected organisms' toxic sensitivity. DAF removed solids effectively with higher recycle ratio and flocculant contents.

Separation of silica from bauxite via froth flotation

2009-3-1  Bauxite flotation practice Worldwide, the industrial practice for bauxite consists in feeding the ROM ore directly to the alumina production plant. Shaffer (1985),in his contribution to SME Mineral Processing Handbook chapter on alumina, literally writes that “the intrincate milling and mineral dressing techniques common in the base metal industry are not used on bauxite”.

INVESTIGATION AND OPTIMIZATION OF USE OF

2016-5-17  Direct flotation of bauxite ore from Xinmi Mine (Sample I) In order to determine the appropriate particle size distribution, reagent dosage for pH regulation, and amount of depressant and collector in bauxite direct flotation, the flow sheet shown in Fig. 3 was used. Optimum conditions determination tests including

分支浮选在低品位铝土矿选矿中的应用实践-Application

Abstract:This paper describes the industrial application of branch flotation in a bauxite concentrator in Henan Province.In the two parallel flotation series, the combined industrial test process of branch rough selection, branch-stream flotation, branch rough selection and branch-stream flotation were adopted successively.In the process of industrial test, the optimum production conditions

A novel collector RL for flotation of bauxite

The flotation properties of single minerals such as diaspore, kaolinite and pyrophllite in bauxites were investigated using RL as collector. The effects of regulators and unavoidable ions on flotation were studied. Based on the results of single minerals flotation, the separation experiments of mixed minerals and bauxite ore were carried out. The results of closed circuit test on the ore show

(PDF) Concentration of Brazilian Refractory Bauxite by

The experiment which conducted to more appropriated results was those carried out with 395 g/t of collector, pH 9.5 and 10 min of milling. The result was a concentrated with 3.74% of Fe2O3, 60.00% of Al2O3 and metallurgic recovery of 40.87%. Keywords: Bauxite. Flotation. Refractory Bauxite. Reduction of Iron Content. 1.

Kaolinite removal from bauxite by flotation

Subsequently, laboratory scale flotation tests were conducted to verify the reproducibility of the results indicated in the microflotation stage. Laboratory scale flotation tests were done in a Denver machine using a 900 mL cell. Each test was fed with 200 g of bauxite ore

A review of pretreatment of diasporic bauxite ores by

2020-11-10  Bauxite concentrate with an aluminum-to-silicon (A/S) mass ratio of 6.37 and a 77.63wt% recovery rate were achieved via a flow sheet consisting of “fast flotation using a flotation cell, one

(PDF) Analysis of Available Alumina and

Direct flotation is the most widely used method for bauxite beneficiation. In this study, a large number of direct flotation tests were carried out using several anionic reagents.

INVESTIGATION AND OPTIMIZATION OF USE OF

2016-5-17  Fig. 3. Flowsheet and test conditions for direct flotation of the bauxite ore (dosages in g/Mg) 74 76 78 80 82 84 86 88 90 92 94 96 98 100 0 2 4 6 8 10 A/S Recovery content of -0.074mm in feeds(%) S 0 20 40 60 80 100 l 2 O 3 %) 1500 2000 2500 3000 3500 4000 0 2 4 6 8 10 A/S Recovery Dosage of Na 2 CO 3 (g/t) S 0 20 40 60 80 100 l 2 O 3 %) Fig

Online hybrid modeling method with application for

4. Application validations in bauxite flotation. To test the working property of model, 385 groups of samples collected from April to June 2011 were analyzed. The Gaussian function was selected as the kernel function. Experiments determined that the width was σ = 2.3.

铝土矿反浮选脱硅技术研究-A study on desilicating from

But barren bauxite resources, especially less high-quality bauxite resources limit the aluminium industry in China greatly。An A/S of 5.8 bauxite sample from Henan Province was chosen as the subject for the test.

分支浮选在低品位铝土矿选矿中的应用实践-Application

Abstract:This paper describes the industrial application of branch flotation in a bauxite concentrator in Henan Province.In the two parallel flotation series, the combined industrial test process of branch rough selection, branch-stream flotation, branch rough selection and branch-stream flotation were adopted successively.In the process of industrial test, the optimum production conditions

Pioneering Studies on the Flotation of Corundum From a

as flotation feed. The optimum size was determined to be 400 mesh. In each of the flotation tests a rougher concentrate was floated and cleaned three times. The tailings from the three cleaner stages were combined for analysis. Table 1 gives the material balance for one such test

Kaolinite removal from bauxite by flotation

Subsequently, laboratory scale flotation tests were conducted to verify the reproducibility of the results indicated in the microflotation stage. Laboratory scale flotation tests were done in a Denver machine using a 900 mL cell. Each test was fed with 200 g of bauxite ore

A novel collector RL for flotation of bauxite, Journal of

The flotation properties of single minerals such as diaspore, kaolinite and pyrophllite in bauxites were investigated using RL as collector. The effects of regulators and unavoidable ions on flotation were studied. Based on the results of single minerals flotation, the separation experiments of mixed minerals and bauxite ore were carried out. The results of closed circuit test on the ore show

(PDF) Concentration of Brazilian Refractory Bauxite by

The experiment which conducted to more appropriated results was those carried out with 395 g/t of collector, pH 9.5 and 10 min of milling. The result was a concentrated with 3.74% of Fe2O3, 60.00% of Al2O3 and metallurgic recovery of 40.87%. Keywords: Bauxite. Flotation. Refractory Bauxite. Reduction of Iron Content. 1.

Adsorption behavior of Pb2+ and Cd2+ ions on

The adsorption behavior of Pb2+ and Cd2+ ions on bauxite flotation tailings was investigated to demonstrate the adsorptivity of the bauxite flotation tailings. The adsorption percentage of Pb2+ and Cd2+ ions as a function of adsorbent dosage, solution pH value and shaking time were determined by batch experiments. The maximum adsorption percentage of 99.93% for Pb2+ ions and 99.75% for

China’s Bauxite and Alumina Industry

Flotation-Bayer process is more competitive in treating low grade bauxite. It is extensively used now in middle China. Flotation Bayer Process for High Silica Bauxite Product Content % A/S Al 2 O 3 SiO 2 Tailing 39.03 31.16 1.25 Concentrate 65.87 6.58 10.01 Ore 56.79 14.90 3.81 Industrial Test Results of Flotation Desilication

Online hybrid modeling method with application for

4. Application validations in bauxite flotation. To test the working property of model, 385 groups of samples collected from April to June 2011 were analyzed. The Gaussian function was selected as the kernel function. Experiments determined that the width was σ = 2.3.

Investigation and optimization of use of anionic

Direct flotation is the most widely used method for bauxite beneficiation. In this study, a large number of direct flotation tests were carried out using several anionic reagents. The testing concluded that vegetable oil acid (VOA), naphthenic acid (NA) and lauryl polyoxyethylene phosphate (AEP12) were the three outstanding collectors for

Pioneering Studies on the Flotation of Corundum From a

as flotation feed. The optimum size was determined to be 400 mesh. In each of the flotation tests a rougher concentrate was floated and cleaned three times. The tailings from the three cleaner stages were combined for analysis. Table 1 gives the material balance for one such test

某铝土矿选矿脱硫试验研究_图文_百度文库

2012-4-27  脱硫浮选矿浆是酸f生矿浆,自然pH值为5-6,通过 RESEARCH OF MINERAL SEPARATIoN DESULPHURIZATION TEST OF THE BAUXITE ZENG Kewen (Beijing General ’ 一 Key words:bauxite;flotation process;desulphurization 万 方数据

Effect of degree of substitution of carboxymethyl starch

2011-8-31  The bauxite reserves in China are roughly 2 500 million tons, ranking the fifth in the world. However, these aluminum resources are overwhelmingly of diasporic ore with low aluminum/silicon ratio (A/S), which fails to meet the necessary requirement of direct Bayer process [1−2]. Reverse flotation