Transcribed image text: The quantity of antimony present in a sample of ore (stibnite) can be determined by performing a redox titration with an oxidizing agent such as KBrO3. A balanced stoichiometric equation of this titration is given below. 6H(aq) + BrO3 (aq) + 3Sb3(aq) ---> Br (aq) + 3Sb5+ (aq) + 3H2O(C) a.
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Read MoreAbstract 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 electrolysis (SE). The results indicated that the leaching efficiency of antimony was higher than 98%, and those of iron and arsenic were about 5.50% and 1.14%, respectively.
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Read MoreAntimony is a silvery-white metal that is found in the earth's crust. Antimony ores are mined and then mixed with other metals to form antimony alloys or combined with oxygen to form antimony oxide. Little antimony is currently mined in the United States. It is brought into this country from other countries for processing. However, there are companies in the United States that …
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Read MoreThe carcinogenicity of inhalation exposure to antimony was investigated in rats. Wistar-rats were exposed by inhalation to 45 milligrams per cubic meter (mg/m3) antimony-oxide, 40mg/m3 antimony ore, or filtered air 7 hours per day, 5 days per week for 52 weeks. Five rats//group were saced at 6, 9 and 12 months, the rest at 20 weeks post exposure.
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Read MoreThe ore bodies mainly occur in lamellar, quasi-lamellar and lenticular forms in the altered rocks, and are strictly controlled by anticline structure. In terms of space, elemental paragenesis-separation takes place between gold and antimony deposits, i.e. the gold deposit has antimony ore spots, and the antimony deposit has gold ore spots.
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Read MoreStructural, stratigraphic and ore deposit studies at the Yellow Pine antimony-gold deposits at Stibnite, Idaho. Structural studies will focus on the geometry, style, offset features, kinematics, age constraints, pressure-temperature constraints, and structural evolution within the four major fault zones in the study area: the ore-controlling Meadow Creek fault, the ore-controlling West …
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Read MoreThe 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 oxide ore, (2) purifying filtrate, and (3) oxidizing the purified filtrate. The method is high in recovery rate, the leaching rate of antimony is 95-99%, the direct recovery rate of sodium …
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Read MoreDOI: 10.37190/ppmp/126629 Corpus ID: 221691979. Effect of hydrogen peroxide and lead(II) nitrate on gold cyanide leaching of Malaysian mesothermal deposit gold ore @article{Baharun2020EffectOH, title={Effect of hydrogen peroxide and lead(II) nitrate on gold cyanide leaching of Malaysian mesothermal deposit gold ore}, author={N. Baharun and …
Read MoreJun 28, 2021· United States Antimony Corp. PO Box 643 47 Cox Gulch Rd. Thompson Falls, Montana 59873-0643. Phone: 406-827-3523. Fax: 406-827-3543. E-Mail: [email protected] SOURCE: United States Antimony ...
Read MoreThe quantity of antimony in an Ore can be determined by an oxidatic-reduction titration with an oxidizing JEent Tle ore js dissolved in hot, concentrated acid and passed Over # reducing agent that all of the antinKny is in the form of Sb '+ (49). The Sb" (aq) completely oxidized by an aqueOus solution of BrO5 (q).
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Read MoreJun 01, 2019· The antimony extraction rate was calculated using the relation (1) α = m 0 × x 0 − m 1 × x 1 m 0 × x 0 × 100 % where α is the extraction rate (%) of antimony, m 0 is the initial weight (g) of the ore, x 0 is the Sb content (wt%) in the ore, m 1 is the weight (g) of the leaching residue, and x 1 is the Sb content (wt%) in the leaching ...
Read MoreAntimony occurrence in the sample was relatively high in <36mum size fraction followed by 600, 800, 400 and 36mum size fractions in that order. Gold content in the sample was comparatively far greater than arsenic and antimony; this is indicative of level of gold mineralization in the concession where the sample ore was taken.
Read MoreAntimony is also produced as a byproduct of smelting primary lead ores. Primary smelter outputs were 19,675 metric tons in 1992. Almost as much antimony is produced from scrap as from ore. Antimony produced from secondary sources is primarily derived from "old scrap," generally consisting of lead battery plates, type metal, and bearing metal.
Read MoreSep 10, 2021· In July and August, prices of both antimony metal and trioxide (ATO) continued to rise amid ore shortages in China and disruptions to sea shipping worldwide. Market participants expected further price increases, but some warned that high prices could push customers to seek possible alternatives to antimony as a flame-retardant additive.
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Read More• Respiratory Endpoints: Antimony is presumed to cause respiratory effects following inhalation exposure based on low evidence in workers exposed to antimony oxides and a high level of evidence in several animal species exposed to antimony trioxide, antimony trisulfide, and …
Read MoreOptimum gold extraction is established to leach gold ore by sodium polysulphide. • The main components of gold leaching are determined by experimental analysis. • We propose the idea and framework of the leaching model for polysulphide ion.
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