platinum-group metals (PGM) and gold from Stillwater Complex flotation concentrate. The Stillwater Complex is the only major U.S. PGM re source. Development of a suitable extraction technique will contribute to its exploitation. The concentrate was roasted at 1,050 C to convert
Sep 08, 2018 Rougher flotation recovered 96 pct of the platinum and 86 pct of the palladium in a concentrate assaying 1.7 oz/ton Pt and 4.7 oz/ton Pd. Cleaning the rougher concentrate with a reagent suite containing a water-soluble polymer gangue depressant yielded a concentrate that had approximately twice the platinum and palladium content of the rougher concentrate.
Bacterial preoxidation of Stillwater Complex, MT, platinum-pup metal flotation concentrate and recovery of platinum-pup metals by cyanidation and other leachants / by D.L. Yopps and EG. Baglin, p. ern. - (Report of investigations 9371) Includes bibliogntphical references (p. 9). Supt, of Docs. no. I 28.229371. 1. Platinum pup-Metallurgy. 2.
Platinum Metals Rev., 2004, 48, (3), 125132 125 ... Treatment of Platinum Flotation Products By A. V. Tatarnikov* and I. Sokolskaya ... HCl concentration, slurry density, and time and sequence of the process on the final hydrochlorination values were studied so that max -
Srdjan M. Bulatovic, in Handbook of Flotation Reagents Chemistry, Theory and Practice, 2010 Publisher Summary. This chapter discusses various aspects of PGM (platinum group metal) ores. In general, PGM ores are concentrates in the crust found in two different ways, by leaching the metal-rich lava (mantle) deposited into the crust, which is known as chemical weathering, especially in a hot ...
A technique has been developed using the Anglo Platinum Bubble Sizer on an industrial flotation cell to determine the relationship between bubble size and frother concentration. This technique has been extended to measure the equivalent frother concentration or frothabilities of various
Concentration of Platinum by Gravity Methods Complex laboratory tests were perfomed using technological sample of dunites weighing 84 kg selected on Svetloborsky array, Vysotsky deposit, ore zone number 1. The sample was ... Flotation Recovery of Platinum from the Tails of Gravity
Aug 01, 2012 On the whole, there is an increase in the concentration index for precious metals enrichment with respect to platinum metals reaches a factor of 5 with an output of concentrate of 20%. The introduction of known flotation regulators (CuSO 4 50 g/ton and Na 2 CO 3 500 g/ton) made it possible in a single stage to extract into an ...
A platinum flotation circuit. In a process called flotation separation, air bubbles are blown through the mixture and carry platinum particles to the surface of the bath. The platinum-rich froth is skimmed from the bath and allowed to dry into a concentrated powder. One ton of dried powder may
May 05, 2020 However, for further flotation applications towards recovering material in a nanoscale range, the critical step is the attachment of bulk NBs to the particles surface. ... In addition, the non-constant concentration of platinum particles pointed to tearing-off mechanisms of NBs from the particle surface while venting the sample.
Ph.D. Igor Bobin, Ph.D. Natalia Petrovskaya. MINING SERVICES. Concentration of minerals, mineral separation, enrichment of minerals, flotation, magnetic separation ...
Froth Floatation Column. The setup in which the froth floatation process is carried out is called the froth floatation column. A common industrial column cell consists of a long cylindrical tank fitted with a feed inlet pipe in the upper portion of the cylinder. Two launders are also connected, one internally and one externally to
US1421585A US43703021A US1421585A US 1421585 A US1421585 A US 1421585A US 43703021 A US43703021 A US 43703021A US 1421585 A US1421585 A US 1421585A Authority US United States Prior art keywords flotation ore sulfide zinc cyanide Prior art date 1921-01-13 Legal status (The legal status is an assumption and is not a legal conclusion.
Impala Platinum Limited is the second largest platinum producer globally, producing 1.7 million ounces of platinum in 2002/2003, primary from operations on the Bushveld Complex (Figure 1). Consistent with the remainder of the industry, Impala has committed to a significant expansion in production, with some of
Jun 02, 2021 Xanthates which float well with platinum group metals (PGE) are widely used as the main sulfide collector for the flotation of sulfide platinum-copper-nickel ore. If free forms of platinoids are found, DP-4 reagent (organic sulfur-containing additive) is additionally used at Norilsk Mining and Metallurgical Plant.
It has been proposed that these ore bodies could be processed using primary gravity concentration, and results of laboratory experiments on flotation of the combined gravity tailings have shown that up to 65% of platinum can be recovered into the flotation concentrate and 1820% can be recovered by magnetic separation from flotation tailings .
flotation properties of the platinum group metals, develop methods for the quantitative recovery of the platinum metals from dilute solutions by ion flotation and investigate the feasibility of ion flotation for the group separation. The anionic chlorocomplexes of Pd(II), Ir(IV), Pt(IV), Au(III), Rh(III) and
Aug 04, 2021 The South African platinum industry has advanced into an era of predominantly mining and processing Upper Group Two (UG-2) ore to extract Platinum Group Metals (PGMs). Flotation concentrates derived from processing UG-2 ore are typically characterized by high chrome contents (3 wt.%) which are not amenable to conventional PGM smelters. The net effect of high chrome, inter alia, includes ...
(DTP) in a reagent suite for the flotation of platinum group metals (PGM) have significantly improved the rejection of gangue. Coupled to this is an improvement in kinetics, grade and ... collector concentration, the TTC was able to produce a higher adsorption density on pyrite compared to DTC.
The platinum group elements, their atomic numbers, chemical symbols, and value ..... 44 Table 2. Tonnage and grade characteristics of reserves and resources associated with reef-type platinum-group elements deposits. Past production is not included. Large igneous province (LIP) names and ratings from Ernst and
hard rock in platinum mines has a high thermal gradient, to refrigerate the working areas. On the surface the ore is crushed and milled into fine particles. Wet chemical treatment known as froth flotation produces a concentrate which is dried and smelted in an electric furnace at temperatures over 1,500C. A matte containing
Jul 11, 2017 Peacocke Simpson often applies innovative thinking to flotation process testing, for example flotation in association with gravity concentration or ultrafine grinding, to add the edge to a widely applied process, and to recover particles from circulating loads. Gravity can also be applied as a scavenger process on flotation tails, to recover ...
Sep 24, 2014 Flotation is a process of separating minerals from one another this technique depends primarily on the difference in the wettability of the particles. This concept is broad and researchers continuously carry out test works to find optimum conditions to improve both grade and recovery of PGMs. Inquire Now.
flotation. The DOW 200 frother was added at a concentration of 30 g/ton to create a suitably stable froth phase where the valuable minerals could be collected for further processing. Batch flotation procedure The flotation experiments were performed using a 3-litre Leeds batch cell in the Mineral Processing Laboratory at UCT.
In this study, the effect of cationic collector (coco-alcyl-amine-acetate) concentration, for optimization of zinc recovery and grade response in flotation by mixed (KAX-Armac C) or catanionic ...
Abstract This experimental work on sphalerite flotation investigated the effect on flotation performance of three particle size fractions, namely, coarse (d80 100 m), medium (d80 39 m) and fine (d80 15 m), bubble size distribution, superficial air velocity, and collector dosage. Bubble size distributions were characterized with the image analysis technique.
The Bureau of Mines devised a procedure for selectively extracting platinum-group metals (PGM) and gold from Stillwater Complex flotation concentrate. The Stillwater Complex is the only major U.S. PGM resource. Development of a suitable extraction technique will contribute to its exploitation. The concentrate was roasted at 1,050 deg. C to convert host base-metal sulfides to oxides and the PGM f
Jun 24, 2017 Because most of the platinum-group bearing sulfides occurred as fine grains and required grinding to approximately 200-mesh for liberation, flotation was investigated as a means for concentrating the metal values. The low concentration of metal values in the ore made it
The flotation method is a widely used technique for the recovery of gold from gold-containing copper ores, base metal ores, copper-nickel ores, platinum group ores and many other ores where other ...
Flotation is widely used in the mineral processing industry to extract valuable minerals from ... Processing of UG2 ore for concentration of platinum group minerals (PGMs) is a challenging task. UG2 ore contains significant amounts of chromite which is hydrophilic in nature and
Concentration procedure separate parasites from fecal debris and increase the chances of detecting parasitic organisms when these are in small numbers. They are divided into flotation techniques and sedimentation techniques. Flotation techniques (most frequently used zinc sulfate or Sheathers sugar) use solutions which have higher specific ...
Flotation reagents Mark III. Gold. Hollywood and mining. How to choose a method for the separation of minerals How to lose everything. I help you make the most effective investments in the field of mining ... This resource is dedicated to the aspects scientific and practical of separation, enrichment and concentration of minerals.