The effective recovery of fine-grained cassiterite is a difficult problem in tin ore beneficiation. For enhancing the performance of the traditional collector for fine cassiterite flotation, a novel surfactant phenyl propyl hydroxamic acid (PHA) was designed by introducing one ethyl group (–CH 2-CH 2-) into benzohydroxamic acid (BHA).The …
Currently, benzo-hydroxamic acid (C 7 H 7 NO 2 ) is extensively used as a collector in the cassiterite flotation. When it was used in the separation of finely disseminated cassiterite, a tin ...
With a reagent scheme of 120 mg/L CEPPA and 4.5 mg/L HCA at pH 10.0, the flotation recovery of cassiterite and fluorite was 92.80% and 13.57%, respectively. Under the same experimental conditions of artificially mixed mineral flotation, the flotation index of cassiterite concentrate grade 78.19% and recovery 90.29% was obtained.
The design of cell-based flotation circuits is often completed in two distinct phases, namely circuit structure identification and equipment sizing selection. While recent literature studies have begun to address the implications of stochastic analysis, industrial practice in flotation circuit design still strongly favors the use of deterministic …
Cassiterite flotation using styrene phosphonic acid to produce high-grade concentrates at high recoveries from finely disseminated ores- comparison with other collectors and discussion of effective circuit configurations. H. Gruner U. Bilsing
Over a period of some 12 years the fine cassiterite concentrate grade has increased from 5% to 60%Sn without which the company would not have been able to continue marketing it's product. This paper briefly describes the evolution of the tin flotation circuit at the Wheal Jane mill with particular reference to improvements in concentrate …
ultra-fine cassiterite gravity separation equipment, green and low lost cassiterite flotation reagent, as well as the reusing and recycling of tin from tin-containing secondary resources deserve more attention, which will encourage researchers to ... intensity magnetic separation circuit were treated by table concentrators, and middlings were ...
Alkyl phosphonic acids were then found to be promising collectors for cassiterite flotation and were massively investigated as alternatives to selective …
The flotation recovery of cassiterite, quartz and feldspar with SPE108 (10 mg·L −1), SPA (200 mg·L −1) and BHA (200 mg·L −1) under pH range of 3–9 is shown in Fig. 6. The results indicated that the flotation ability of the three collectors towards quartz and feldspar was very weak, indicating they both have good selectivity in the ...
DOI: 10.1016/0892-6875(92)90222-U Corpus ID: 95097641; Cassiterite flotation using styrene phosphonic acid to produce high-grade concentrates at high recoveries from finely disseminated ores- comparison with other collectors …
A cassiterite flotation section was installed in 1970 to scavenge cassiterite finer than 40 μm from the gravity plant tailing. Cassiterite flotation was conducted in an acid circuit …
A cassiterite flotation section was installed in 1970 to scavenge cassiterite finer than 40 μm from the gravity plant tailing. Cassiterite flotation was conducted in an acid circuit with an
Cassiterite (SnO2) is very friable and special considerations to crushing and grinding of the ore are necessary to avoid an excessive production of fines. The Mineral Jig is an important feature of this flowsheet to recover the coarse free tin mineral as soon as liberated. The Tin Ore Processing Flowsheet CRUSHING Circuit of Tin Ore
This paper presents the development of an environmentally friendly, small molecular depressant citrus pectin for improving the recovery of cassiterite resources. Citrus pectin extracted from citrus peel was utilized as the depressant, and it demonstrated significant potential in separating calcite from cassiterite in micro-flotation tests. The …
The open-circuit flotation concentrate has a Sn grade and recovery of 12.01% and 40.59%, respectively, indicating the excellent flotation separation of cassiterite from its associated gangue minerals.
Int. J. Miner. Process., 2000, 59(3): 237. [11] Gruner H, Bilsing U. Cassiterite flotation using styrene phosphonic acid to produce high-grade concentrates at high recoveries from finely disseminated ores comparison with other collectors and discussion of effective circuit configurations. Miner. Process., 1992, 5: 429. [12]
Fig. 2 shows the flotation recovery of cassiterite as a function of BHA concentration. In the absence of ferric chloride, the recovery of cassiterite increased proportionally with an increase in BHA concentration from 10 mg/L to 80 mg/L, and then remained nearly constant at approximately 35% in the BHA concentration range of …
The beneficiation process of cassiterite ore mainly includes gravity separation and flotation, in which flotation is considered to be the most effective way to achieve efficient enrichment of ...
Thus, in recent decades much attention has been focused on the role of grinding circuits in mineral flotation in both the industry and academia (Peng and Grano, 2010a, Song et al., ... Fig. 5 presents the relationship between the cassiterite flotation recovery rate and SHA concentration at pH 7–8. The cassiterite flotation recovery for ...
The flotation and surface interaction of cassiterite with salicylhydroxamic acid have been investigated in this paper. The results showed that recovery of cassiterite with salicylhydroxamic acid was high at a neutral pH, with the maximum recovery occurring at ca. pH 6.5. When the size of cassiterite is less than 74 μm, coarse particles showed …
A new understanding of the adsorption mechanism of oleate on cassiterite surfaces is presented by density functional theory (DFT) calculations. Various convergence tests were conducted to optimize the parameter settings for the rational simulation of cassiterite bulk unit cell and surface slabs. The calculated surface energies of four low …
At present, the research on flotation separation of cassiterite and gangue minerals is mainly focused on the development of new collectors or depressants, while the research on combined depressants is rare. In this study, the flotation separation of cassiterite and the typical gangue mineral, calcite, was investigated using the metal …
Keywords:adsorption, cassiterite, flotation, lead nitrate, cyclohexyl hydroxamic acid 1. Introduction Tin (Sn, Stannum) is a metallic element characterized by a silvery-white luster. It was among the earliest metals discovered and utilized by humankind. Its notable features include a low melting point, soft
The design of cell-based flotation circuits is often completed in two distinct phases, namely circuit structure identification and equipment sizing selection. While recent literature studies have begun to …
1. Introduction. The cassiterite occurring in hard-rock deposits is usually associated with polymetallic sulphide minerals and many other gangue minerals, including fluorite [1].The presence of fluorite makes the flotation separation of cassiterite a very challenging work because the conventional collectors for cassiterite also float fluorite …
Flotation tests were carried out in an XFG flotation machine with a 40 mL plexiglass cell (Gao et al., 2016a), and the impeller speed was set to 1600 r/min. The flotation pulp for single or mixed binary minerals (1 g cassiterite plus 1 g calcite) was prepared by adding 2 g of mineral samples to 35 mL of DI water.
Figure 3 presents the effect of DSA concentration on the flotation recoveries of cassi-terite, calcite, and quartz at pH 8.5 ± 0.3. Cassiterite demonstrates a positive correlation between recovery rate and DSA concentration within the range of 0–1.4 × 10−4 mol/L, peaking at 82% recovery at 9 × 10−5 mol/L.
The effect of ferric ions (Fe3+) on the flotation of zircon and cassiterite using sodium oleate (NaOL) was investigated by single mineral flotation tests, adsorption density tests, zeta potential measurements, …
Session 2.1 Control of Flotation Circuits Experiments with Self-Tuning Control of Flotation Preparations for Computer Control of a Cassiterite Flotation Circuit A Useful Technique for Metallurgical Mass Balances-Applications in Flotation Session 2.2 Online Control of Mineral Processing Plants
Sulfosuccinamate was introduced to serve as collector for cassiterite flotation, and chemical bonding occurred between sulfosuccinamate and cassiterite surfaces [14], [15]. ... at high recoveries from finely disseminated ores –comparison with other collectors and discussion of effective circuit configurations. Miner. Eng., 5 (1992), …
The dataset outcomes demonstrated that SDS and OHA were present in the cassiterite flotation. The optimal pH of the pulp was 9.0. The effect of a mixture of the two collectors on the flotation recovery of cassiterite was investigated to examine the potential synergy between SDS and OHA, as shown in Fig. 3 (d).
At present, the research on flotation separation of cassiterite and gangue minerals is mainly focused on the development of new collectors or depressants, while …
Abstract: The flotation, adsorption and bonding mechanisms of styrene phosphonic acid (SPA) to cassiterite were studied using microflotation tests, zeta potential measurements, solution chemistry analysis and density functional theory (DFT) calculations in this paper. Flotation results demonstrated SPA was an excellent collector for …
Cassiterite is brittle and the design of the comminution circuit may limit what can be achieved by gravity separation which works best at the coarser sizes. Cassiterite is an oxide mineral and the gangue minerals as well as the quality of the process water will impact the ease of recovery by flotation because the reagent chemistry is not as ...
The size of cassiterite reported varied from 200 gm to 5 gm; two distinct ranges, 200 to 50 gm and 50 to 5 gm are related to the scale of technique. The flotation of cassiterite by batch flotation cell, pilot-plant cell and plant-scale cell was best in the 200 to 50 gm range, selectivity diminishing rapidly below 50 gm.
