flowsheet process sulphide base metal ores
- صفحه اصلی
- flowsheet process sulphide base metal ores
This paper presents experimental results of flowsheet designs excluding cyanidation to maximize the gold recovery for a refractory Turkish gold ore with a leach recovery of 82 %. Different ...
به خواندن ادامه دهید
Depending on the ratio of oxide/sulphide minerals, the transition ore can be processed by using the flow sheet for either oxide (i.e., via heap leaching, at adjusted operating conditions, such as ...
به خواندن ادامه دهید
Simplified flow sheet of Rustenburg Base Metals Refinery (adapted from Hofirek & Halton [20]). ... base metals in sulphide ores containing PGMs. ... A typical example is the process used at ...
به خواندن ادامه دهید
The sulfides minerals are relatively simple, just 20 metals such as Cu, Zn, Pb, Ag, etc. form part of sulphides, being the pyrite (Fe2S) the mineral commonest. HH_XRF chemist elemental composition ...
به خواندن ادامه دهید
Advantages of the Cawse flowsheet 1. The process has been proven on an industrial scale producing 8,000 tonnes/year nickel cathode. 2. The front half of the process produces an intermediate crystalline base metal hydroxide that can either be sold to other nickel producers or further treated to produce high-purity nickel cathode and cobalt ...
به خواندن ادامه دهید
the sulfide ore and the recovery of its valuable metals. Nerco has provided funding on an annual basis. Information contained in this publication is a result of this research. Within the research program, complex sulfide ores are treated by ferric chloride leaching to dissolve zinc, lead, copper and silver.
به خواندن ادامه دهید
While biooxidation may be described as a simple process, the actual oxidation of sulfide minerals is complex. Refractory gold and base metal-bearing minerals typically present sulfur in oxidation states of −2 and −1 in sulfide minerals (Sand et al. 1995). It is improbable that the oxidation path of sulfide to sulfate (S oxidation state, +6 ...
به خواندن ادامه دهید
The extensive laboratory research investigations showed dodecyl mercaptan (in the form of Pennfloat3) to be a highly effective and versatile collector for sulfide mineral flotation. On copper-molybdenum ores, copper recoveries increased 2 to 10 percentage points; whereas, molybdenum recoveries increased from 5 to over 40 percentage points ...
به خواندن ادامه دهید
to low-temperature POX conditions may be worth considering in some copper sulphide leaching scenarios. Simplified Flowsheet A simplified flowsheet outlining total POX in a copper circuit is shown in Figure 1. Two points are worth noting, firstly the acid generated in the oxidation of the sulphides in the concentrate pressure
به خواندن ادامه دهید
The Kamoa project has utilised process mineralogy extensively throughout ore characterisation and flowsheet development programs (Lotter et al., 2013). This paper further demonstrates the power of ...
به خواندن ادامه دهید
History of Sulphide ore flotation dates back to beginning of 20th century. Sulphide ores are major sources of base metals like Copper, Lead, Zinc, Nickel, Cobalt etc. Beneficiation of these base metal sulphide minerals is predominating through froth flotation technique. This technology has acclaimed importance as a versatile process for
به خواندن ادامه دهید
The flotation testing of sulphide ores for flowsheet development, or for the improvement of existing flowsheets in operations, has been practiced for a century or so. ... This was to improve the state of base metal sulphide liberation. 3. ... It is a complex process dominated by interactions, using pH modifiers, dispersants, activators ...
به خواندن ادامه دهید
Platsol® conceptual flowsheet for base and precious metals recovery from sulfide concentrates. Under the above conditions, base metals (Cu, Ni) and precious …
به خواندن ادامه دهید
Flowsheet selection for free-milling ores can be relatively straightforward, with the key issues revolving around comminution circuit selection, the use of heap leaching, treatment of high-silver ores and flotation options for free-milling sulfides. Complex ores include those associated with base-metal mineralization, particularly copper, that ...
به خواندن ادامه دهید
Base metal sulphide ores exist in many areas of the World and are a potential source of copper, nickel and cobalt. A large portion of copper and nickel is produced from sulphide concentrates by the conventional smelting and hydrometallurgical processes. Pyrometallurgical processes have several detriments including high capital …
به خواندن ادامه دهید
The basic principle of nickel matte smelting is that the ore melts into liquid phase and the metal components including Ni, Co, and Fe react with sulfiding agents after reduction, forming mixed melt of nickel, cobalt, and iron sulfides, also named low-grade nickel matte . The advantages of this process are simple equipment, mature technology ...
به خواندن ادامه دهید
Complex sulphide ores represent considerable reserves and resources in base non ferrous metals, in precious metals, and in sulphur. Some of their essential …
به خواندن ادامه دهید
These consist of zinc and iron sulfide depressants which are added to the grind and a collector and frother for the lead-copper sulfides. The zinc is floated with additional quantities of a collector and frother after conditioning with lime and copper sulfate. The pH of the lead circuit is approximately 8.0 and the zinc is 10.5 to 11.0.
به خواندن ادامه دهید
The PGMs in this ore occur largely as sulfide minerals and partially as tellurides, arsenides, and ferroalloys (Schouwstra and Kinloch, 2000, Seymour and O'Farrelly, 2001). They mainly deport to the base metal sulfide minerals or are interlocked at the BM-silicate grain boundary and are hence recoverable via flotation, after sufficient …
به خواندن ادامه دهید
The conventional smelting and refining of Ni sulfide concentrates is an effective strategy for extracting Ni from sulfide ores. However, during the smelting process, sulfur is oxidized to sulfur dioxide (SO 2), which poses a significant environmental hazard.The present work investigates the feasibility of an alternative process to recover …
به خواندن ادامه دهید
The Anglo Platinum Base Metal Refinery (BMR) matte leach flowsheet includes two stages of pressure leaching. The key objective of the primary pressure leach stage is to solubilize nickel from ...
به خواندن ادامه دهید
The test work showed that co-treatment of limonitic ore with either pyrrhotite concentrate or copper-nickel concentrate was effective, with base metals present in the laterite ore and sulfide concentrates being extracted (up to 97.3% of Ni and 98.7% Cu) and oxidation of the iron sulfide component generating the required acid for leaching.
به خواندن ادامه دهیدThe original patent for the Albion Process TM covered the ultra-fine grinding of base metal sulfide concentrate or ore to a P 80 of 20 µm or less followed by leaching in a sulfuric acid medium containing dissolved ferric and ferrous iron with sparging of air, oxygen-enriched air or pure oxygen at temperatures between 60°C and the boiling ...
به خواندن ادامه دهید
Flowsheet selection for free-milling ores can be relatively straightforward, with the key issues revolving around comminution circuit selection, the use of heap leaching, …
به خواندن ادامه دهید
matrix and liberate base and precious metals prior to metal recovery. There are currently five Albion ProcessTM plants operating globally in base and precious metals duties. As a response to the increasing ore complexity, GT proposes a flowsheet that is a combination of these recent advances in mineral processing and hydrometallurgy processes.
به خواندن ادامه دهید
About 80% of the worlds' reserves for platinum group metals (PGMs) are in South Africa's Bushveld Igneous Complex. Processing of PGM involves comminution, flotation, smelting, converting, base metals refinery and precious metals refinery. Due to increasing chrome content in the feed and the challenges associated with operating high …
به خواندن ادامه دهید
A polymetallic gold ore in the Al Amar region, Saudi Arabia, is rich in sulfide minerals of base metals, namely, sphalerite (ZnFeS), pyrite (FeS 2 ), chalcopyrite …
به خواندن ادامه دهید
The maximum PGM flotation recovery achieved using sulphide co-collector schemes was 55.1% 3E (Pt, Pd, and Au). Application of the hydroxamate oxide collector improved the flotation recovery to 74.7% 3E. The superior PGM recoveries achieved with hydroxamates probably lies in their ability to form complexes with base metals such as iron.
به خواندن ادامه دهید
Sulphides mineral are the richest ore metals defined as an important component of geological model deposits in the world. The sulfides minerals are relatively simple, just 20 metals such as Cu, Zn ...
به خواندن ادامه دهیدFrother for metal ore flotation. Methyl isobutyl carbinol (MIBC) is an organic chemical compound that acts as ing agent in the flotation process to separate metal concentrate from the slurry. MIBC is the frother of choice for sulfide ores such as copper, zinc and lead, because it is able to deliver optimal interaction of all components in ...
به خواندن ادامه دهید
sulphide ores containing PGMs, Nickel, Copper and other metals: • Platinum (Pt), Palladium (Pd), Rhodium (Rh) and Ruthenium (Ru) are the most prevalent of the six …
به خواندن ادامه دهیدIn general, the type of flowsheet used to treat PGM ores largely depends on the type of ore. For example, ores that are sulphide dominated have the simplest flowsheet but …
به خواندن ادامه دهید
Sulphide ores are the major sources of base metals like Copper, Lead, Zinc, Nickel and Cobalt. Beneficiation of these base metal sulphide minerals is predominantl y through the froth flotation ...
به خواندن ادامه دهیدThe benefit of having a SART process in the cyanidation process is that it breaks the base metal cyanide complexes, precipitates the metals as high-grade sulfide concentrates, and frees the cyanide for recirculation to the leaching process . The SART process is described by the following sequence of unit operations:
به خواندن ادامه دهید
Generally, silver is also dissolved by the cyanide solution and follows the gold through the process sequence. Iron sulfide minerals, which are common constituents of gold ores, are oxidized to some extent during the cyanide leach, thus resulting in the formation of acid. ... complex base metal ores in which the precious metals are …
به خواندن ادامه دهیدچه بخواهید با ما کار کنید و چه علاقه مند به کسب اطلاعات بیشتر در مورد محصولات ما هستید، مایلیم از شما بشنویم.