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It can be illustrated that the pre-oxidation of the gold ore by Mn-oxide oxidation controlled Au-extraction efficiency, and with the dissolution of 93.3 % As and 92.5 % Sb from …
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Volatilization Roasting is the process of volatilizing the sulfur and forming antimony crude oxide (Sb2O3) Sb2S3 +9O→Sb2O3+3 SO2; begins at 290°, rapid at 520° and finishes at 560° …
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In this paper, the selective and bulk flotation methods are considered as primary sulphidic refractory gold ore pre-treating options. The results show that it is impractical to remove arsenic...
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Antimony oxide ore is one of the refractory ores and the high efficient flotation of antimony oxide ore is recognized one of the most difficulty beneficiation problems in the world. In the …
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A selective process for extracting antimony from refractory gold ore. DOI: 10.1016/J.HYDROMET.2017.03.014 Corpus ID: 99624322; A selective process for extracting …
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The leaching rate of antimony increases by 10.6% under ultrasound in Fig. 7 (b). This indicates that sodium hydroxide has less influence on the ultrasonic-leaching process …
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Iron oxide ore, limestone, quartz quartizile, and charcoal are pulverized and then mixed with antimony sulfide concentrate. The mixture is added into the vortex furnace for …
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Sb 2 O 3 ore of the Sefid-Abe mine in Zahedan province, Iran, utilizing selective acidic or alkaline leaching followed by Sb electrowinning. A process was developed to recover antimony from an …
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This study investigated the leaching and electrowinning of antimony from a complex, high arsenic and gold-containing stibnite concentrate ore (As-Au-Sb ore) using slurry …
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Antimony is rare in the Earth's crust having a (upper) crustal abundance of only 0.4 ppm (Rudnick and Gao, 2003). Antimony is found in over 100 different mineral species, typically in …
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Antimony oxide was precipitated from the PLS via the hydrolysis process. The product composed of 81.43% Sb, 16.23% O, and 2.34% Fe. This study aimed to investigate …
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Antimony chloride leaching is a method of oxidative leaching of antimony sulfide using antimony pentachloride produced in the diaphragm electrodeposition process as an oxidant.
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Antimony is commonly obtained by smelting antimony ores and recovery from certain secondary sources. Two main methods are used to obtain antimony ore: …
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ammonia to produce a pure antimony oxide. ... in extracting antimony from sulfide ore by the addition of iron, a starlike fern ... et. al., 1975, Leaching of Antimony with Ferric Ch …
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For the above problems, many researchers focus on more efficient and green utilization of stibnite (Sb 2 S 3).For example, Padilla et al. proposed a direct carbothermal …
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Gold containing antimony concentrate in Shandong, China was selected as the research object in this study. The main chemical composition of the ore sample is shownin Table 1. The leaching …
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Antimony is a non-renewable strategic mineral resource and an indispensable and important raw material for modern industrial development. With the high-intensity resource …
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Leaching of copper from a Jordanian copper ore has been studied using a stirred batch reactor with hydrochloric acid as the main lixiviant, under the following conditions: temperature 25 – 45 oC ...
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Recently, Raschman and Sminčáková (2012) achieved 90% leaching of a natural stibnite ore (49.3% Sb) in less than 30 min at 19 °C using an electrolyte containing 2 wt.% Na …
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The invention discloses a method for preparing sodium antimonate from an antimony oxide ore via an alkaline approach. The method comprises the following steps: (1) leaching the antimony …
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The ammonia leaching method is mainly used to treat copper oxide ore containing calcium-magnesium carbonate gangue minerals, iron-containing gangue minerals and …
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EXAMPLE I An antimony ore containing a mixture of both antimony oxide minerals and antimony sulfide minerals and containing a total of 3.3% antimony was crushed and ground to pass …
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Methods of reducing melting and sulfide-alkaline leaching of antimony sulfide concentrates to obtain metallic antimony and antimony trioxide are discussed, and methods of refining …
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by microwave leaching, meanwhile to eliminate the arsenic which is very hazardous for human health and. ... The antimony ore specimens were subsequently leached using hydrochloric …
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Antimony is classified as a critical/strategic metal. Its primary production is predominated by China via pyrometallurgical routes such as volatilization roasting—reduction smelting or direct reduction smelting. The …
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Furthermore, the interaction between various factors for Na 2 S + NaOH leaching of the low-grade antimony-bearing gold ore are also determined through response surface model …
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The invention discloses a method for preparing sodium antimonate from an antimony oxide ore via an alkaline approach. The method comprises the following steps: (1) leaching the antimony...
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The main Sb-and As-bearing ore minerals in this Qinglong Sb mine are both sulfide minerals, to be specific, stibnite (Sb 2 S 3 ) and arsenopyrite (FeAsS), respectively [9,29].
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