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antimony stibnite arsenic

Arsenic, Antimony, Mercury, and Water Temperature in ...

The Stibnite mining area (study area) is in Boise and Payette National Forests, 14 miles southeast of Yellow Pine, Idaho (fig. 1). The area was intermittently mined for gold, silver, mercury, antimony, arsenic, and tungsten from 1919 to 1997. During World War II, the Stibnite mining area produced

Arsenic, antimony, mercury, and water temperature in ...

Aug 27, 2019 · Mineralization and historical mining of stibnite (antimony sulfide), tungsten, gold, silver, and mercury in the headwaters of the East Fork of the South Fork Salmon River (EFSFSR) near the former town of Stibnite in central Idaho resulted in water-quality impairments related to mercury, antimony, and arsenic. Additionally, mining-related disturbances and wildfires have resulted in a lack

Extracting antimony from high arsenic and gold-containing ...

Jun 01, 2019 · The antimony content in the cathode antimony was >98%, and arsenic content was less than or equal to 0.21%. The As-Au-Sb ore consisted of stibnite (Sb 2 S 3), pyrite (FeS 2), arsenopyrite (FeAsS), and quartz (SiO 2), along with a small amount of muscovite (KAl 2 (AlSi 3 O 10)(OH) 2) and other gangue phases. Antimony mainly occurred in stibnite.

Antimony and Arsenic Sulfide Scaling in Geothermal Binary ...

2. THERMODYNAMICS OF ARSENIC SULFIDE AND ANTIMONY SULFIDE 2.1 Antimony Stibnite is antimony(III) sulphide Sb 2S 3. It occurs naturally as a mineral that normally forms acicular (long, needle-like) black crystals. Like arsenic, antimony has two oxidation states Sb3+ and Sb5+. Thus stibnite has antimony in the reduced oxidation state of +3.

Antimony: Mineral information, data and localities.

Member of: Arsenic Group. Name: From the medieval latin 'antimonium', originally applied to stibnite. The etymology is uncertain; the popular etymology, from ἀντίμοναχός anti-monachos or French antimoine, still has adherents; this would mean "monk-killer", and is explained by many early alchemists being monks, and antimony being ...

Arsenic and Antimony Sulphide Minerals in Cyanidation

Sep 17, 2014 · The decomposition of arsenic and antimony sulphide minerals at pH 12 was considerably greater than at pH 10; orpiment was the most readily decomposed followed by stibnite, realgar, and arsenopyrite, in that order. The amount of arsenopyrite decomposed in six hours, even at

Arsenic, Antimony, and Bismuth - Gallicchio - - Major ...

Antimony occurs in tri‐ (+3) and pentavalent (+5) compounds and is found in the earth's crust mostly associated with sulfur as stibnite and in ores associated with arsenic. Antimony is a group VA element of the periodic table and it has many of the same chemical and

Mineral Resource of the Month: Antimony - EARTH Magazine

It occurs sparingly as a free element, but when it does it is usually in association with arsenic, bismuth or silver. The principal ore minerals of antimony are stibnite and jamesonite, but it can also be a byproduct of certain other minerals. Eighty percent of the world’s

Arsenic, Antimony, and Bismuth - Fowler - - Major ...

Jan 27, 2012 · Antimony occurs in tri- (+3) and pentavalent (+5) compounds and is found in the Earth's crust mostly associated with sulfur as stibnite and in ores associated with arsenic. Antimony is a group VA element of the periodic table and it has many of the same chemical and biological properties as the element arsenic.

Arsenic and Antimony - Comparison - Properties - Material ...

Antimony. Antimony is a lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name,

SELECTIVE EXTRACTION OF MERCURY AND ANTIMONY

quantities of stibnite. Arsenic minerals are present in smaller amounts. The pres-ence of these volatile impurities is detrimental to economic recovery of quicksilver by standard mercury-recovery techniques. At the Red Devil plant it was determined that nearly complete oxidation of the antimony and arsenic was required to effect

STIBNITE-QUARTZ DEPOSITS (MODELS 27d,e and 36c; Bliss

Plot of pH versus dissolved antimony in mine and ground water down gradient from a tailings pond. Data from Shvartseva (1972) and Woessner and Shapley (1984). Figure 2. Plot of antimony, arsenic, and sulfate concentration ranges associated with stibnite-quartz deposits. A, mine water data, Kadamzhay

Arsenic, Antimony, and Bismuth - Gallicchio - - Major ...

Antimony occurs in tri- (+3) and pentavalent (+5) compounds and is found in the earth's crust mostly associated with sulfur as stibnite and in ores associated with arsenic. Antimony is a group VA element of the periodic table and it has many of the same chemical and

Arsenic, Antimony, and Bismuth - Fowler - - Major ...

Jan 27, 2012 · Antimony occurs in tri- (+3) and pentavalent (+5) compounds and is found in the Earth's crust mostly associated with sulfur as stibnite and in ores associated with arsenic. Antimony is a group VA element of the periodic table and it has many of the same chemical and biological properties as the element arsenic.

Mineral Resource of the Month: Antimony - EARTH Magazine

It occurs sparingly as a free element, but when it does it is usually in association with arsenic, bismuth or silver. The principal ore minerals of antimony are stibnite and jamesonite, but it can also be a byproduct of certain other minerals. Eighty percent of the world’s

Where to Find Mercury, Antimony and Arsenic in Canada

Oct 05, 2016 · In British Columbia, stibnite is found in the Slocan district with some of the silver-lead-zinc ores, and the antimony has been recovered in considerable quantity in refining the lead. Stibnite in quartz veins has been found near Tagish Lake and near Cadwallader Creek. Where to Find Arsenic Ore

Antimony - Wikipedia

Antimony is a chemical element with the symbol Sb (from Latin: stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb 2 S 3).Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name kohl. Metallic antimony was also known, but it was

Stibnite - Wikipedia

Stibnite, sometimes called antimonite, is a sulfide mineral with the formula Sb 2 S 3.This soft grey material crystallizes in an orthorhombic space group. It is the most important source for the metalloid antimony. The name is from the Greek στίβι stibi through the Latin stibium as the old name for the mineral and the element antimony.

Heteronuclear compounds of arsenic and antimony ...

Volatilization of secondary metals such as arsenic, antimony, and bismuth, during the smelting of copper ores, is important because of environmental and resource considerations. The Bureau of Mines, United States Department of the Interior, has been studying copper concentrate roasting in conjunction with the volatility of these minor constituents. Some unusual vaporization behavior initiated ...

Antimony Trisulfide 1345-04-6

Stibnite has a low melting point, and it can be extracted by melting if the ore contains 45-60% antimony and is free of lead and arsenic. This technique is called liquation. Sulfide ores with antimony contents between 5 and 25% are roasted to give volatile Sb. 2. O. 3. which is reduced directly to the metal. Low-grade and complex ores or ores in

The behavior of arsenic and antimony at Pezinok mining ...

Aug 21, 2011 · Arsenic and antimony contamination is found at the Pezinok mining site in the southwest of the Slovak Republic. Investigation of this site included sampling and analysis of water, mineralogical analyses, sequential extraction, in addition to flow and geochemical modeling. The highest dissolved arsenic concentrations correspond to mine tailings (up to 90,000 μg/L) and the arsenic is present ...

Antimony: The mineral native Antimony information and pictures

The Mineral antimony. Antimony is a native element that can occur in a natural state, but it is rarely pure. It almost always contains some arsenic, and may also contain traces of silver, iron, and sulfur. On a fresh or preserved surface, Antimony has a tin-white color with a slight blue tinge. Otherwise, it is dark gray due to tarnish.

Antimony | Sb - PubChem

Antimony 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 produce antimony ...

THERMOGRAVIMETRIC AND DISTILLATION STUDIES ON

rates of reaction for pure mineral fractions of cinnabar (mercury sulfide), stibnite (antimony sulfide) and realgar-orpiment (arsenic sulfides) in vacuum and in atmospheres of air and nitrogen, Activation energies for cinnabar were found to be about 25 Kcal per mole in

Chemistry of Stibnite, Orpiment and Other Sulfide Minerals ...

antimony, arsenic, stibnite, orpiment, binary, modeling . ABSTRACT Geothermal brines usually contain little arsenic and even less antimony, iron, zinc or lead but deposits containing stibnite (Sb 2 S 3) or other sulfide minerals are sometimes encountered. The solubility of sulfide minerals depends on the concentration of H 2 S as well as ...

SELECTIVE EXTRACTION OF MERCURY AND ANTIMONY

quantities of stibnite. Arsenic minerals are present in smaller amounts. The pres-ence of these volatile impurities is detrimental to economic recovery of quicksilver by standard mercury-recovery techniques. At the Red Devil plant it was determined that nearly complete oxidation of the antimony and arsenic was required to effect

Extracting antimony from high arsenic and gold-containing ...

Abstract 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.

Ecological Soil Screening Levels for Antimony

Antimony (Sb, stibium) is a semi-metallic element that belongs to group (VA) of the periodic table and shares some chemical properties with lead, arsenic, and bismuth (U.S. EPA, 1992). In nature, antimony is associated with sulfur as stibnite. Antimony also occurs in ores with arsenic, and the two metals share similar chemical and physical ...

Arsenic and antimony in geothermal waters of Yellowstone ...

Arsenic and antimony in geothermal waters of Yellowstone National Park, Wyoming, USA ... WHITE (1967) and WEISSBERG (1969) previously reported stibnite (Sb2S3), but not orpiment (As&), precipitating in the near surface zone of alkaline geothermal systems. INTRODUCTION GEOCHEMISTS HAVE debated whether the arsenic in

Stibnite Creek (ARDF #TC029) Au, Sb

Two holes were drilled on the Stibnite Creek prospect; the best interval was 4.1 feet that contained 700 parts per billion gold, 2,260 parts per million (ppm) arsenic, and 7.40 ppm silver. Geologic map unit (-143.798142292097, 63.2480324102475) Mineral deposit model: Tintina Belt-style, gold-arsenopyrite-stibnite quartz vein. Age of mineralization

(PDF) Determination of Trace Elements in Arsenic and ...

Determination of Trace Elements in Arsenic and Antimony Minerals 231 T able 1. Content of Cd, Co, Cr, Cu, Ni and Pb in realgar, orpiment and stibnite determined by standard addition method (after ...

Behavior of Arsenic, Antimony and Bismuth at Roasting ...

Arsenic, antimony and bismuth are commonly found in copper concentrates usually as the minerals enargite, stibnite and bismuthinite, respectively. Concentrates having high levels of arsenic and ...

Chemical Elements - Antimony

Antimony is important for semiconductors, but has been used for a long time as additive in alloys like bronze and in cosmetics. Nonetheless it is quite toxic and has effects similar to arsenic, but weaker. Left: Antimony crystal, 2 grams, 1 cm. Right: Stibnite, also known as antimonite, antimony sulfide Sb 2 S 3,on quartz. Size 4x3 cm.

Antimony Mines (MRDS #10070483) SB

stibnite most often occurs as narrow 1 - 6 in veins or elongated lenses throughout the overall vein structure. deposit: battery grade sb produced in furnace - 95 - 96% sb; sodium antimonate, also produced by first leaching concentrate - used in glass industry. future plans to fume sb to sb203 reported by j. lawrence, president, u.s. antimony.

Antimony | History, Uses, Facts, Physical & Chemical ...

Antimony. Antimony is a chemical element with symbol Sb and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl.

PHOSPHORUS, ARSENIC AND ANTIMONY .txt - PHOSPHORUS ARSENIC

Arsenic and antimony are much rarer. They occur in minerals such as realgar As4S4 and stibnite Sb2S3 , but are mostly obtained as byproducts from the processing of sulfide ores of other elements. Elemental P is obtained by reduction of calcium phosphate.

Antimony | Umicore

Stibnite, the antimony sulphide Sb2S3, was known in ancient times. Egyptian women used it to blacken their eyebrows (the Latin word stibium means stain). ... Like arsenic, there are various allotropes, one of which, yellow antimony, occurs only at temperatures below –80°C and is liable to explode.