The flotation separation index of chalcopyrite and pyrite in the CB medium system was better than that in the CIB system. The peak values of the selectivity index 2.65 (CB) and 1.58 (CIB) were obtained at a pH of 7 for CIB, pH of 9 for CB, collector dosage of 40 g/t, and CaO dosage of 1.0 g/t.Web

Anionic flotation is the most efficient method to separate fluorite from barite in mineral processing while the critical point of successful separation lies on the depressant.Web

The lepidolite ore used in flotation separation tests was got from Yichun Tantalum & Niobium Mine in China. The mineralogical analysis of the lepidolite ore shows that the main components of the ore were largely 27.83% lepidolite, 34.59% albite, 17.04% quartz, 7.15% sericite, 5.23% potassium feldspar, 5.06% kaolinite, 1.37% pyrite, 1.04% ...Web

Bastnaesite has always been faced significant challenges in its flotation separation from its associated gangue minerals like fluorite. ... single mineral and artificial mixed minerals flotation experiments results show that OLHA achieved efficient flotation separation of bastnaesite and barite when odium hexametaphosphate (SHMP) was …Web

Selective separation of barite from quartz, fluorite and carbonates by flotation using alkylsulfonates as collectors was studied . The significance of slurry pH on barite separation from different gangue minerals was also studied and discussed [4, 5]. Better separation of barite was observed in alkaline pH of above 9.0 while using fatty …Web

The flotation behavior and separation mechanism of bastnaesite from barite and calcite were evacuated by micro-flotation, zeta potential measurements, FTIR …Web

The flotation separation of fluorite from calcite can be achieved without the addition of depressants. ... single mineral and artificial mixed minerals flotation experiments results show that OLHA achieved efficient flotation separation of bastnaesite and barite when odium hexametaphosphate (SHMP) was used as depressant. The contact angle, …Web

The differences in the particle size and surface properties were used to realize asynchronous flotation separation of minerals in flotation (Fichera and Chudacek, 1992, Agar et al., ... and the results indicated that ultrasonic pretreatment promoted the flotation of calcite and barite and inhibited the flotation of quartz.Web

However, the flotation separation of scheelite from these minerals remains a challenge for mineral processing owing to the following reasons: (a) ... Wang X. Flotation performance and selective adsorption mechanism of novel hydroxamic acid on the separation of fluorite from barite. Miner Eng. 2021;171:107101.Web

The additional methods to obtain the effective flotation separation of fluorite from barite slime were tested and discussed. ... The flotation separation between sulfides and fine serpentine has always been a difficult problem due to their hetero-coagulation. To acquire a better understanding on the adverse effect of fine serpentine on Cu-Ni ...Web

The micro-flotation tests were used to describe the floatability of barite and calcite and separation performance of these two minerals. For comparison, WG was …Web

The utilization of citric acid as a depressant for the flotation separation of barite from fluorite[J]. Minerals Engineering, 2020, 156. Google Scholar [23] DENG J, LIU C, YANG SY, et al. Flotation separation of barite from calcite using acidified water glass as the depressant[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects ...Web

Flotation separation of barite and calcium-minerals is difficult due to the same active sites. Fluorite particle is an efficient depressant for barite. An effective …Web

Application in the flotation separation of fluorite/calcite and adsorption selectivity on the mineral surfaces. Author links open overlay panel Zhihao Guo a b c, Mengjie Tian a b c, Zhiyong Gao a c, Wei Sun a c. ... Evaluation of 2-phosphatebutane-1, 2, 4-tricarboxylic acid as a depressant in the flotation separation of fluorite from barite.Web

DOI: 10.1016/J.COLSURFA.2019.123605 Corpus ID: 198362384; Flotation separation of barite from calcite using acidified water glass as the depressant …Web

Flotation. According to the difference in physicochemical properties of mineral particle surfaces, flotation is the method that selectively enriches the target minerals in the pulp at the gas-liquid interface and separates them from the pulp, thus realizing the mineral separation. It is also known as floating separation.Web

Abstract. Calcite is a semi-soluble mineral that can be considered one of the main problematic gangue phases for several different types of valuable sulfides and oxides. Since froth flotation is the main beneficiation technique for upgrading these valuable minerals, calcite flotation separation has been widely investigated.Web

In order to improve the recovery of tungsten ores containing tin minerals, anisic hydroxamic acid (p-methoxy benzohydroxanic acid, PMOB) was synthesized and introduced as novel collector in the flotation of scheelite, wolframite and cassiterite. The flotation performance and adsorption mechanism were investigated by micro/batch …Web

The results of flotation tests showed that highly selective separation of fluorite from barite was obtained when 250 mg/dm³ of modified starch and 13.16×10⁻⁵ mol/dm³ sodium oleate was used ...Web

The successful separation of bastnaesite from associated semisoluble minerals (calcite and barite) with alkyl hydroxamate collectors was found to be more selective than conventional fatty acids and suggests the need for designing flotation collectors based on the specific chelating characteristics of the reagent with metal ions …Web

Gurpinar et al. 2004 examined the effects of ultrasonication on the flotation separation of calcite, barite, and quartz mine, and the results indicated that ultrasonic pretreatment promoted the flotation of calcite and barite and inhibited the flotation of quartz. Franko and Klima. 2002 suggested that ultrasonic pretreatment removed fine ...Web

Flotation separation of apatite and calcite is difficult due to the same surface properties and depressant is essential. As shown in Fig. 2, the recovery of apatite increases from 69.74% to 85.03% when the pH increases from 6.0 to 8.0. Then the apatite recovery obviously decreases to 40.95% when the pH reach to 11.0.Web

The recovery of scheelite from calcium-bearing carbonate ores by flotation is challenging due to its low separation efficiency. This study investigated the effect of pentasodium diethylenetriaminepentaacetate (PD) on the surface properties of scheelite and fluorite. For this purpose, we performed micro-flotation tests and carried …Web

Sodium silicate is a critical depressant in bastnaesite flotation, with which the flotation separation of rare-earth minerals from gangue is accomplished in Bayan Obo mines [7]. It has a strong depression effect on the salt minerals such as fluorite, calcite, and barite with the formation of a hydrophilic film on the mineral surfaces.Web

Chen et. al. (2019) compared NaOl and SDS on the flotation separation of barite from calcite in the presence of SS. The study showed that a recovery of 86.11 % of BaSO4 can be obtained and the reason was due to that SS in the presence of SDS preferably adsorbs onto the calcite surface rather than the barite (Chen et al., 2019).Web

Cationic collectors could be the best option for the flotation separation of these two minerals. Previous studies on the application of Gemini quaternary ammonium salts in scheelite flotation shows that the selectivity of cationic collectors is higher than the traditional collectors (Liu et al., 2021, Ni et al., 2020, Yang et al., 2015).Web

The anionic reagents have been used in the flotation separation of fluorite from barite, such as sodium oleate (NaOl) and sodium petroleum sulfonate (SPS) [8,9]. These anionic collectors are non-selectivity for the fluorite and barite [10], thereby they need to be used with the depressant to inhibit the flotation of barite. ...Web

OEBA realized flotation separation of fluorite and barite from calcite at pH ∼ 9.0, and barite from fluorite at pH ∼ 11.0. OEBA's adsorption capacity on the three …Web

Synthesis and utilization of a novel oleate hydroxamic acid collector for the flotation separation of bastnaesite from barite. 2023, Minerals Engineering ... The model of flotation separation of hematite from quartz system with Fe(III)-XG and DDA was drawn. A review of flotation reagents for bastnäsite-(Ce) rare earth ore. 2023, Advances in ...Web

Barite flotation with various collectors at different pH values. (The ciphers in parentheses indicate the consumptions in g/t). ... correspond to the best conditions for the mixtures separation ...Web

The flotation of artificial mixed minerals confirmed that the separation of barite from calcite could be achieved by using AWG as depressant. Zeta potential …Web

The effective flotation separation of scheelite and barite is difficult to achieve without any depressant. As shown in Fig. 2, the floatability of barite is similar to that of scheelite when the Pb-BHA coordination compound is used as the collector.The Pb-BHA coordination compound is a good collector for barite and scheelite, but this collector …Web

production of brown barite powder (SG 4.065 g/cm 3) was examined by flotation (direct and reverse) and magnetic separation for upgrading the quality of fine barite particles and receive it to the standard point for drilling applications (SG higher than 4.2 g/cm3). Mineralogy analysis showed that hematite was the main associated mineral, and ...Web

DOI: 10.1016/j.apsusc.2020.145714 Corpus ID: 213495782; Selective flotation separation of bastnaesite from calcite using xanthan gum as a depressant @article{Wang2020SelectiveFS, title={Selective flotation separation of bastnaesite from calcite using xanthan gum as a depressant}, author={Zhoujie Wang and Houqin Wu and …Web

In this work, to achieve the separation of barite from fluorite, 2-phosphatebutane-1, 2, 4-tricarboxylic acid (PBTCA) was used to depress fluorite, and the floatability, separation efficiency and mechanism were researched by micro-flotation tests, zeta potential measurements, solution chemistry calculation and XPS analysis.Web

During the flotation separation process of bastnaesite, it is difficult to separate bastnaesite from fluorite effectively. In this present study, sodium silicate (SS) can effectively improve the flotation separation effect of bastnaesite and fluorite in salicylhydroxamic acid (SHA) systemasa. Through relevant analyses, such as Zeta …Web

DOI: 10.1016/j.mineng.2020.106491 Corpus ID: 219931354; The utilization of citric acid as a depressant for the flotation separation of barite from fluorite @article{Liu2020TheUO, title={The utilization of citric acid as a depressant for the flotation separation of barite from fluorite}, author={Cheng Liu and Ming Zhou and Ling Xia and …Web

A modified reverse flotation process, shown in Fig. 2.2, was proposed to upgrade the rare earth from 3 to 7 % to 60 % rare earth oxide (REO) and barite from 25 to 92–95 %. Overall, rare earth recovery is 77–84 % and barite recovery is 61–68 %. Fig. 2.2. Easter China WS rare earth reverse flotation process.Web

The gangue minerals are mainly fluorite and barite with industrial production potential, as well as quartz and calcite. 26 In 2008, ... Flotation separation flowsheet to enrich RE minerals in Bayan Obo (a), Mountain Pass (b) and Weishan Lake (c). 3.3.1. Surface chemistry.Web