Chat Online

click to chat


Different Machines to Meet All Needs


WEIR SLURRY PUMPING MANUAL iv–1 Symbols used The terms slurry and mixture in this Manual are used interchangeably to describe a mix of any loose solids made up in any proportions and combinations of any particle sizes and any conveying liquid.The subscript w refers to densities and specific gravities of liquids mostly but not exclusively water.

Froth Flotation Circuit Design And Basic Testwork

Froth flotation is a very important mineral concentration process that is used to recover a vast array of different minerals containing valuable commodities such as copper lead zinc nickel molybdenum tungsten silver gold phosphate and potash.

Long Distance Pipeline Transportation of Ore Slurry

Minera Alumbrera Copper Concentrate Pipeline Argentina 310 km Jianshan Iron Ore Slurry Pipeline China 100 km Minera Dona Inés Collahuasi Copper Concentrate Pipeline Chile 203 km Freeport Grasberg Mine Copper Concentrate Pipeline Irian Jaya/Indonesia 120 km Batu Hijau Copper Concentrate Pipeline Indonesia 18 km


We then collect and filter this material called concentrate The concentrate which contains about 26 percent copper and by products such as gold and silver moves through a pipeline to Kennecott s smelter located about 17 miles to the north for further processing.

1 Froth Flotation Fundamental Principles

mineral/water slurry The particles with attached air bubbles are then carried to the surface and Grade/recovery performance of a hypothetical copper ore flotation process Product Weight Cu Assay Feed 100 2.09 Concentrate 10 20.0 This tells us that the concentrate has 9.57 times the copper concentration of the feed.

Refine Process Concentration Copper And Gold Slurry

Refine Process Concentration Copper And Gold Slurry 201668ensp0183enspThe present work shows that digestion of the milled copper slag slurry with concentrated sulphuric acid at a temperature of 250oC forms a solid cake and leaching of the solid cake with water is a possible option The copper slag contains a high content of silica and iron

Barrick Gold Corporation

29 09 2016  Patented process in use at Saudi Arabia mine and in Chile Flotation froth of copper concentrate during laboratory testing in Santiago Chile Barrick has developed and patented a new flotation process that can produce copper concentrates from copper or copper gold ores using salt or brackish water The new process an air metabisulfite treatment does not require lime or cyanide.

Experimental Study on Recovery of Cyanide Tailings Slurry

The concentration of cyanide in membrane concentrate water reached 807.9 mg/L the concentration of copper gold and silver reached 0.43 mg/L and 3.91 mg/L respectively after being concentrated from below the detection limit and the concentration was 19.9 14.3 and 18.6 times respectively.


Gold is recovered from its ores hydrometallurgically by the cyanide leach process The gold reacts with cyanide according to reaction Davidson and Sole 2007 Au0 2CN– ½ H 2O ¼ O2 → Au CN 2 OH– 1 The gold ore after grinding to 80 –5 micrometers is fed to leaching tanks in the form of slurry including 45 solid.

Copper production environmental impact

Copper s use averages out at around 140 300 kg per capita in developed countries Copper along with oil and gold are among the most traded commodities Copper doesn t break down in the environment leading to its accumulation in plants and animals Absorption of some copper into the body is essential for human health.

AMIT 135 Lesson 2 Circuit Mass Balancing Mining Mill

Slurry Solids Concentration by Weight A classifying cyclone is treating 150 gallons/min of slurry A plant technician has measured the pulp densities of the process streams using a Marcy density gauge and reported the following Ï f = 1.08 gm/ml Ï o = 1.03 gm/ml and Ï u = 1.20 gm/ml Determine the volumetric flow rates to each stream.

Estimated Water Requirements for the Conventional

the amount of water required to process copper sulfide ore through a conventional crush grind flotation concentrate circuit ranges from roughly 1.5 metric tons t to about 3.5 t of water to process 1 t of ore Wels and Robertson 2003 2004 Misra and others 2005 Wills and Napier Munn 2006 Chilean

The use of reactors in biomining processes

oxygen and carbon dioxide mass transfer process stoichiometry solids suspension and slurry homogeneity and the use of bioreactors in gold mining It is concluded that the future of reactors in biomining is promising and that new applications such as the bioleaching of copper concentrates will soon be a reality.

Refining Gold

­The final stage of gold production refining involves removing impurities that remain after the smelting process.Refining companies receive doré bars as well as scrap gold and reliquefy the metal in a furnace Workers add borax and soda ash to the molten metal which separates the pure gold from other precious and less precious metals A sample is then taken to a lab for tests or

The leaching and adsorption behaviour of gold ores

gold was completely extracted by cyanide alone The flotation feed and copper concentrate showed an enhancement in gold extraction due to the activated carbon adsorbing gold that would otherwise have been preg robbed However this mechanism did not explain the behaviour of the pyrite concentrate

A conceptual flowsheet for heap leaching of platinum group

Slurry made from the concentrate was coated onto granite pebbles and packed into a column in which it was bioleached with a mixed culture of thermophiles and mesophiles at 65°C After 30 days the extractions achieved were 52 copper 95 nickel and 85 cobalt The residual concentrate material was subsequently subjected to a cyanide leach

The process design of gold leaching and carbon in pulp

The gold aurocyanide complex in the aqueous phase is readily adsorbed onto the activated carbon By the time the pulp leaves the last tank in the adsorption cascade the concentration of gold in the aqueous phase is typically between 0.001 and 0.02 ppm with a value of 0.01–0.005 ppm regarded as a practically achievable value for most well

Gold CIP CIL System Heap Leaching Cyanidation Process

As the same with conventional cyanidation process the leaching slurry concentration and the oxygen content in the leaching pulp are strictly controlled during the agitation leaching stage By adding a certain volume of CNFREE gold environmental leaching agent to adjust the leaching concentration

Rare Metal Technology 2014

P.K Everett The Intec Copper Process Paper presented at the International Conference on Extractive Metallurgy of Gold and Base Metals Kalgoorlie Austrilia 1992 287 292.

refine process concentration copper and gold slurry

By cyaniding and carbon leaching crushed gold ore slurry simultaneously CIL process lower the gold mining operation cost and increase gold recovery rate to a degree of 99 Chat Online Copper Refining From Ore to Market INN Copper Refining From Ore to Market the first major step in copper refining is concentration.

Flowsheet Options

For the processing of a refractory gold/silver concentrate the pH of the oxidative leach is held at 5.5 by the continual addition of limestone slurry to ensure complete oxidation of the sulphur to sulphate The oxidative leach is operated under acidic conditions for copper zinc cobalt and nickel concentrate

Calculating Physical Properties Of Slurries

15 03 2013  When the slurry concentration is higher than 10 percent it is generally regarded as non newtonian Physical Properties of a Slurry Since the slurry consists of solid particles suspended in a liquid the properties of a slurry mixture will depend upon those of the constituents The density of slurry can be calculated from the following equation

Copper Concentrate Production Process

Copper Concentrate Plant Process diagram of copper concentrate production process Conventionally copper is recovered by a pyrometallurgical process known as smelting In this process copper ore is mined crushed ground concentrated smelted and refined Get Price process flow diagram for gold concentrate plant Chapter 6 Copper Production

Copper fractal growth during recycling from waste printed

20 03 2021  Superfine copper particles could be directly prepared from waste printed circuit boards by slurry electrolysis Meanwhile copper fractal growth could be observed To better understand this phenomenon the factors that affect copper dendrites in a point cathode system were discussed in detail These results showed that the fractal degree of copper dendrites increased as the increase of applied

How to Refine Gold 2 Major Techniques of

Why do we need to refine gold The answer is very simple We cannot use gold in its raw form It is a precious noble metal that comes in different forms As an alloy of silver and platinum an amalgam as a part of a stone or in scattered particles Or you may even decide How to Refine Gold 2 Major Techniques of Process

Copper Mining and Production Processes Explained

Processes copper mining and production Copper is found in natural ore deposits around the world This page explains copper mining the production route taken from ore containing rock to a final product that is the highest purity commercial metal in existence and used in a wide variety of applications essential to modern living.

copper concentrate process

Projects Copper Concentrates Dewatering dewater and dry the copper concentrate slurry leading to significant process improvements Inquire Now Recovering Gold from Copper Concentrate via the 2004 August JOM 57 Recovering Gold from Copper Concentrate via the HydroCopperTM Process Olli Hyvärinen Matti Hämäläinen Pertti

Dense Medium Separation

concentration process should be conducted at as coarse a crush size as possible while minimizing losses of pay metals Dense medium separation DMS is a robust process that can be conducted at particle sizes as coarse as 300 mm and as fine as 500 µm with high separation efficiency depending on liberation characteristics of the value minerals.

The process design of gold leaching and carbon in pulp

The gold aurocyanide complex in the aqueous phase is readily adsorbed onto the activated carbon By the time the pulp leaves the last tank in the adsorption cascade the concentration of gold in the aqueous phase is typically between 0.001 and 0.02 ppm with a value of 0.01–0.005 ppm regarded as a practically achievable value for most well

mining slurry weight concentration

Gold Mining Slurry Weight Concentration 2020 6 5high concentrations gold mining slurry pumps Slurry Pumping Solution for Gold Ore Mining Goulds Pumps In early 2012 an operator of a gold ore mining and milling facility located in upgrades on a large thickener unit solution was the 125XHD Extra Heavy Duty Lined Slurry Pump Support .

Copper Smelting and Refining Process

In the furnace the concentrates are instantly oxidized after which they melt and separate by their own reaction heat into copper matte with a grade of 65 and slag consisting of iron oxide silica and other compounds Reaction in the flash smelting furnace CuFeS 2 SiO 2 O 2 → Cu 2 S FeS 2FeO SiO 2 SO 2 Reaction heat.

Copper Electrolysis Refining Plant Purification of Copper

07 12 2017  The refining anodes taken out from the refining furnace is changed into electrolytic copper with purity of 99.99 through an electrolysis process During electrolysis copper II ions leave the impure copper anode and since they are positive migrating to the negative cathode From time to time the pure copper is scraped off the cathode.

PT Freeport Indonesia

Flotation is a separation process to produce copper gold concentrate Concentrate slurry consisting of finely ground ore and water mixed with reagents is introduced into a series of mixing tanks called flotation cells where air is pumped into the slurry The reagents used are lime frothers and collectors.