Vein-hosted mesothermal stibnite-gold mineralisation at the Hillgrove Au-Sb mine in northeastern New South Wales has a halo of veinlet and disseminated auriferous arsenopyrite and arsenian pyrite in metasedimentary and granitic host rocks. About 50–55% of the gold produced at Hillgrove occurs invisibly in arsenopyrite and pyrite. Gold losses …
(DOI: 10.1016/S0304-386X(00)00107-9) This article is published in Hydrometallurgy.The article was published on . It has received 80 citations till now. The article focuses on the topics: Gold cyanidation & Carbon in pulp.
Perpetua's proposed Stibnite gold project in Idaho is designed to re-establish a US source of the critical mineral antimony as a byproduct of one of the highest-grade open pit gold resources in ...
The processing plant for the Stibnite gold project will be designed to process the sulphide and oxide ore materials as well as the historical tailings at an average rate of 20,000 tonnes per day (tpd). The finished products will be gold/silver doré bars, and the filtered antimony‐silver concentrate.
Antimony has a long and diverse history of applications, and concerns about its future supply have emerged in recent years. Stibnite-bearing ores continue to be the main source of this critical ...
Our results show that the ore formation in the Sandu-Danzhai metallogenic belt (SDMB) can be divided into Au (pyrite + arsenopyrite + dolomite), Au-Sb (pyrite + arsenopyrite + stibnite + quartz), Sb (stibnite + native antimony + barite + dolomite + quartz) and Hg (cinnabar + calcite) stages, based on mineral paragenetic and vein …
Advantages of the flowsheet and various approaches depending on convenient electrolytes for the deposition of antimony from the stibnite ore have been investigated.
Antimony was recovered from stibnite by leaching the stibnite with SbCl 5 -HCl solution, followed by the membrane electrowinning separation of Sb from the leachate (Yang, Yang, and Tang 2010b). ...
Vein-hosted mesothermal stibnite-gold mineralisation at the Hillgrove Au-Sb mine in northeastern New South Wales has a halo of veinlet and disseminated auriferous arsenopyrite and arsenian pyrite ...
The biooxidation of a refractory goM-bearing stibnite (antimony sulphide) favours the increase of gold recovery during the subsequent hydrometallurgical process (cyanidation, adsorption onto activated carbon, desorption from activated carbon and electrowinning). Tests were conducted at laboratory scale utilising a refractory stibnite ore.
In this study, the preg-robbing characteristics of a copper-rich gold ore and a pyritic gold ore were evaluated based on the adsorption of gold by ore from the spiked solutions (0-5 mg/L Au).
A significant proportion of the sulphidic refractory gold appears to be hosted by the arsenical pyrite, arsenopyrite and stibnite components of the ore. These minerals are amenable to flotation recovery.
In our previous study, the leaching and electrowinning of antimony from a high arsenic and gold-containing stibnite concentrate ore using SE process in a medium of HCl–NaCl was investigated Zhang et al. [ 15 ]. The antimony was selectively leached, while gold and arsenic were retained in the residue as a raw material for further gold extraction.
The antimony-rich refractory gold-silver ore consisted predominantly of quartz, the illite/kaolinite group of clay minerals and barite with lesser amounts of pyrite, stibnite, sphalerite ...
Improved gold and silver extraction from a refractory antimony ore by pre-treatment with alkaline sulphide leach, Hydrometallurgy, 105, 3-4, 234–239.
This paper reviews the state-of-the-art technologies for the antimony separation and recovery from refractory ores and metallurgical residues. The advantages and limitations of these technologies are discussed with respect to antimony recovery efficiency and the impurity level of the products.
Hydrometallurgical methods are also be developed to extract antimony from different kind of ores. It has one significant advantage: Separating and recovery precious metals such as Au and Ag and heavy metals Cu, Zn from low-grade stibnite and complex antimony ore [1,6].
To avoid the adverse effects of antimony on the cyanide leaching process used for the recovery of gold from refractory gold ore, a cleaner production process was proposed that would selectively remove antimony as sodium pyroantimonate.
In this paper, the ultrasound-assisted leaching of antimony from refractory gold ore in alkaline sodium sulfide was investigated in order to deeply understand the influence of ultrasonic on the control steps of leaching and the application prospect of ultrasonic in metallurgy.
The pretreatment of an antimonial refractory gold and silver ore was investigated using alkaline sulphide leaching. The ore assayed 20 g/t Au and 220 g/t Ag and contained predominantly quartz/clay and barite, and to a lesser extent, sulphides such as pyrite, stibnite, sphalerite, zinkenite (Pb 9 Sb 22 S 42) and andorite (Sb 3 PbAgS 6 ).
Semantic Scholar extracted view of "Leaching Kinetics of Antimony from Refractory Gold Ore in Alkaline Sodium Sulfide under Ultrasound" by Yuting Hu et al.
A review of the technologies for antimony recovery from refractory ores and metallurgical residues
This study provides new data on Sb distribution and mobilization through the ore processing systems at two different active gold mines in New Zealand. The gold formed in different geological settings, and the amounts of Sb are different in the ores from the two mines. Hence, this study provides an opportunity to contrast the chemical …
Comprehensive details along with the recent advances related to stibnite processing through the aforementioned extractive metallurgy routes, their technological improvements and antimony purification/recovery methods from leach solutions are …
Bismuthinite-Stibnite Series. Possibly also polymorphous with UM1996-35-S:Sb. The most common antimony sulphide. An important Sb ore mineral.
Fortunately for the U.S. at that time, a gold mine in central Idaho called the Stibnite mine was able to step up production of the antimony that is an element in the mine's ore and helped fill ...
The Stibnite-Yellow Pine mining area in central Idaho hosts gold, antimony, and tungsten in metasedimentary strata and Idaho batholith rocks.
The leaching rate of gold increased from 13.35% to 40.56% after antimony removal. Moreover, the leaching rate of gold after antimony removal reached 68.90% under ultrasound.
The successful cyanidation of gold ores containing appreciable amounts of arsenic or antimony sulphide minerals such as orpiment, realgar, and stibnite is usually difficult or even impossible. Extractions are low and the solutions soon become 'foul.'. The gold in such ores could be free and uncoated, and no trouble in dissolving it in clean ...
The present study focuses on pilot plant scale extraction of antimony metal from lower grade stibnite ore of Krinj (Chitral) without the use of iron scrap, thus eliminating the second step of iron ...
Stibnite ore at Wadi Abu Quraiya, situated in the central Eastern Desert of Egypt has been subjected to petrographical, mineralogical, infrared, X-ray diffraction, chemical and spectral analyses. Hydrometallurgical treatment based on leaching with acids, precipitation and electro-deposition of metal values from the ore have been developed.
The gold concentrate normally grades 3,000 g Au/t; the distribution of gold losses is 40% in tailings and 20% in the stibnite concentrate. Jamesonite ores Cheche concentrator, Dachang, People's Republic of China. The ore is a highly complex deposit containing sphalerite, tin minerals and jamesonite as well as arsenopyrite and pyrite.
