ارتباط با ما
با ما تماس بگیرید
0086-21-58386256
0086-21-58386256
The mineral is potentially toxic primary sulfide ore of antimony. Stibnite is a typical hydrothermal deposit associated with other sulfide minerals and is the principal source of antimony. The metal is used as flame retardant, textiles, and coatings, fiber, alloy with lead for batteries, plain bearings, and solders.Web
Antimony tends to concentrate in sulfide ores along with copper, lead and silver. It occurs sparingly as a free element, but when it does it is usually in association …Web
Fig. 4 shows the results of antimony and arsenic extraction from lead silicate slag through alkaline sulphide leaching. The recovery of antimony was 36% within 2 h at a concentration of 10 g/L NaOH which steadily increased to 75% after 24 h. When the concentration of NaOH was increased to 30 g/L, the recovery-time plot clearly shows an ...Web
The chemical analyses of the laterite ore and sulphide concentrates used in the tests are provided in Tables 1 and 2. Reagent-grade antimony sulphide or bismuth sulphide (Table 3) was added to increase the antimony or bismuth concentrations of the concentrate feed in some tests (Sects. 3.2 and 3.3).Web
Antimony(III) sulfide powder; CAS Number: ; EC Number: 215-713-4; Synonyms: Antimonschwarz,Antimontrisulfid,Grauspießglanz,Schwefelantimon; Linear Formula: Sb2S3; find Sigma-Aldrich-244562 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-AldrichWeb
Stibnite, antimony sulfide (Sb2S3), the principal ore of antimony. This mineral has a brilliant metallic lustre, is lead- to steel-gray in colour, and fuses readily in a candle flame (at about 525° C [977° F]). It often possesses a bladed habit, is striated, and has one perfect cleavage. StibniteWeb
Evidence for the occurrence of antimony can be traced back to antiquity. 1 The name comes from the Greek, anti and monos, meaning 'metal not found alone'. 2 Indeed, antimony is usually found as the sulfide ore, stibnite, Sb 2 S 3, the black form of which was used by ancient Egyptian women as a cosmetic for darkening their eyebrows …Web
In the field of hydrometallurgy, NaOH and Na 2 S [5, 6] have been investigated as leaching agents to leach Sb sulfide ore, after which the Sb metal can be obtained by electrolysis. This method has ...Web
In the natural world, antimony is mainly in the form of sulphide ore and oxidized ore. Sulphide ore Sulphide ore is mainly stibnite, which has good floatability and is mainly r ecovered by ...Web
Abstract. Electrodeposited antimony can be treated with sulfuration–volatilization technology, which causes antimony to volatilize in the form of antimony sulfide. During this process, gold is enriched in …Web
In ancient times, powdered stibnite, the most common mineral form of antimony sulfide, was (along with lead sulfide) a principal ingredient of kohl, the thick black paste that Egyptians and others used as a cosmetic for coloring eyebrows and lining the eyes. ... Most antimony occurs in scattered ore bodies that cannot be readily …Web
A wet chemical process was developed for the separation of gold from gold-bearing antimony sulphide ores. The ore sample was taken from the mine Urquidi from Oruro in Bolivia. It contained roughly 33% Sb in the form of antimonite. 24% Si in the form of quartz, small quantities of Pb, Fe, Cu, and Ni as well as 63 g/t gold, 60% of it as visible gold.Web
Antimony has a negative effect on the gold extraction from antimony–gold concentrate, and it is necessary to remove antimony in advance. For a high calcium low antimony–gold concentrate (Ca–Sb–Au ore), this study proposed to pre-remove antimony using slurry electrolysis in HCl–CaCl 2 system. The results indicated that the optimal …Web
Alkaline sodium sulfide is widely used in the removal of antimony bearing ore/concentrate (Awe et al., 2013). The decomposition of antimony sulfide can be carried out by the following reactions as Eqs. (1) and (2) (Smincáková and Raschman, 2011): Sb 2 S 3 + 2S 2− → Sb 2 S 5 4− Sb 2 S 2− + S 2− → SbS 3 3−Web
Antimony sulfide mineralization is encased within quartz veins and was formed under relatively low temperature conditions for vein mineralization. Ore-bearing quartz veins cut steeply dipped, folded, and faulted beds of the Stanley Shale (Mississippian). The veins strike generally east-west. Sulfides of copper, zinc, iron, and …Web
Antimony sulfide (stibnite) We begin with what some might consider to be the very first chemical equation in the very first chemistry textbook. The equation can be found on page 168 of an edition of Tyrocinium Chymicum, or 'Beginner's Chemistry', published 400 years ago in 1615. A copy of this rare book was somehow obtained by Glasgow ...Web
6 rowsAside from its few medical applications, it also has industrial applications, acting as a flame ...Web
Geologically, native antimony is rare, and it is mostly found in sulfide ores. The main ore minerals of antimony are antimonite and jamesonite. The extensive …Web
And then antimony can be recovered in the form of antimony sulfide. The corresponding reaction equation can be expressed as follows: ... Improved gold and sliver extraction from a refractory antimony ore by pretreatment with alkaline sulphide leach. Hydrometallurgy 105:234–239. CrossRef Google Scholar Jin SB et al (2009) Influence of …Web
Stibnite is a mineral composed of antimony sulfide (Sb2S3). It has a distinctive silvery-gray to lead-gray color and is known for its unique crystal structure. Here are some of its chemical, physical, and optical properties: Chemical Properties: 1. Chemical Formula:Sb2S3 2. Chemical Composition: Stibnite is composed of two …
1. Arsenic and antimony: Sources and toxicity. Arsenic (As) and antimony (Sb) are trace elements with metalloid properties, showing a wide distribution in the environment (Kabata-Pendias & Mukherjee, Citation 2007).Both are chalcophile elements and usually co-occur in hydrothermal sulfide ores (Johnston et al., Citation …Web
Introduction: The Abunabu antimony mining area is located between the Indus–Yarlung Tsangpo suture and the southern Tibetan detachment system. Ore deposits in the mining area provide an excellent opportunity to understand the nature and genesis of antimony mineralisation in the Tethys Himalayan metallogenic belt.Methods: In this …Web
In the following, we focus in particular on the chemistry of antimony sulfide in selected ILs. The ore stibnite (Sb 2 S 3) is the main source for antimony production. At contents of 40 to 60%, antimony is obtained by reduction with iron at 550 to 600 °C. From ores with lower contents, the sulfide is roasted to Sb 2 O 4 or Sb 2 O 3 and then ...Web
Antimony, a metallic element belonging to the nitrogen group (Group 15 [Va] of the periodic table). Antimony exists in many allotropic …Web
In 1986, China developed the chlorination–hydrolysis process that directly uses antimony sulfide ore to produce antimony xide (antimony white). The grade …Web
the element; in any case, he described the extraction of metallic antimony from its sulfide ore in his treatise "The Triumphal Chariot of Antimony," published sometime be tween A.D.1350 and 1600 (Li, 1953). Pliny the Elder named the metal stibium, and the eighth century Arabian alchemist Geber (Jabir) referred to it as "antimonium,"Web
The saturated vapour pressure of antimony and its sulphide and oxide at different temperatures are shown in Fig. 2.As can be seen from Fig. 2, as the temperature increases, the saturated vapour pressure of Sb 2 S 3, Sb 2 O 3 and Sb increases gradually, and the growth trend of Sb 2 S 3 is the most rapid. When the temperature is below 1201 …Web
Antimony-gold ores mostly consist of gold and antimony sulfide intergrowth and aurostibite (AuSb 2) . Russia, Bolivia, Australia, and China have gold-antimony ore deposits . Copper-rich sulfidic ores (e.g., tetrahedrite) have also received significant attention in recent years due to the depletion of richer ore bodies.Web
Black antimony sulphide (Anzon) has a strong black colour and is of interest as a pigment in plastics such as PE, polyesters, and PVC. It also confers flame-retardant properties. It …Web
The antimony in refractory gold ores was selectively removed by ultrasound with alkaline sodium sulfide. The removal rate of antimony reaches 94.50% under the optimum conditions: the ultrasonic power is 1500 W, the Na 2 S concentration is 2 mol/L, temperature is 55 °C and time is 60 min and the NaOH concentration is 1 mol/L. …Web
Antimony sulfide (Sb 2 S 3, stibnite) is a semiconductor nanomaterial with orthorhombic crystal structure [1, 2].It has outstanding properties and potential applications in electronic and optoelectronic devices [75].One attractive property of Sb 2 S 3 is the crystal structure, which consists of double (Sb 4 S 6) n ribbon units linked through van der Waals forces in …Web
