flotation gangue molybdenite

A process mineralogy approach to optimize molybdenite

Oct 01 2020 0183 32 Optical microscopic studies Zeiss SM-LUX-POL reflective polarizing microscope have been used in order to determine the degree of liberation 1 as well as the association of sulphide minerals and gangue in feed concentrate and tailings of the molybdenite flotation circuit From each sample of feed concentrate and tailings three standard...

Face or Edge Control of Molybdenite Surface Interactions

Oct 09 2019 0183 32 Molybdenite MoS 2 a 2-D transition metal dichalcogenide is a potential substitute for grapheneMolybdenite mineral particles are separated from gangue minerals by flotation a process often performed in saline waters where the presence of...

Polymeric depressants for selective mineral flotation and

environmentally benign depressants In addition talc a problematic gangue mineral also frequently occurs in the Cu-Mo sulfide or As an inherent hydrophobic magnesium depressants for the Cu-Mo sulfides separation and molybdenite-talc separation The flotation results indicated that HA is a selective depressant for molybdenite while the...

Studies on the Flotation of Molybdenite I Flotation of

Abstract Some points to be considered in the flotation of molybdenite containing clayey gangue were investigated and based on the results obtained the method of flotation operation was examined at the Daito mine Shimane Prefecture...

1 JW Blossom Molybdenum from Minerals Yearbook

The following wastes may be generated by extraction and beneficiation operations gangue flotation tailings spent flotation reagents and wastewater 16 17 The tailings from molybdenite concentration are not expected to exhibit any hazardous characteristics but metal leaching and acid formation are...

Flotation Circuit Design for Adanac Moly Corp using a

True flotation of non-sulphide gangue NSG only occurs due to attachment to molybdenite the very low Mo grade of the ore results in very low NSG R max valu As a comparison copper porphyry ore may exhibit NSG R max of 4 to 8 The molybdenite recovery was generally poor under the standard size conditions with P 80 of 210 microns and m...

MOLYBDENUM FERROMOLYBDENUM AND AMMONIUM

concentrate the molybdenite in the primary ore to a 90 to 95 percent purity concentrate4 The remainder of the concentrate is primarily silica5 Copper iron and lead are the impurities removed as tailings by this flotation process Several sequential stages of flotation also are used for the copper ore first to separate the gangue and then the...

Tailings Mineral Industry Solution

These sulfide ores are separated from gangue waste material then from each other by froth flotation Copper /Molybdenum Flotation Circuit Steps Grinding Grinding mills liberate the ore from the gangue material non-ores silica organics and reduce it to an optimal size for flotation...

ore processing molybdenite

some of which consist of 1 kind of copper molybdenite minerals present in the ore 2 composition of gangue minerals in the ore 3 the presence and type of clay minerals and 4 type of frother used Srdjan 2007 Oily collector is typically added in molybdenite flotation to Get Price...

Roasting of molybdenite concentrates containing flotation

The ore is finely ground to release the molybdenite mineral which is then separated from the gangue by flotation using various types of flotation oils eg pine oil vapor oil etc and other addition agents a large portion of the oil 50-70 generally remaining in the molybdenite concentrate...

PDF Recovery of molybdenum and copper from porphyry ore

To inhibit t he flotation of pyrite and gangue minerals in the rougher flotation process Flotation of molybdenite was however strongly depressed in sea water at pH higher than 95 Frothers...

Optimization of a Copper/Molybdenum Flotation Circuit by

deposits also contain other minerals such as molybdenite as a secondary mineral and among other minerals pyrite and silicate as gangue minerals 9 Sulfide copper ores contain by-product molybdenite a major by-product mineral from copper concentrators The global molybdenum production has a use of 50 as an alloying agent in the steel...

101016/jminpro201601003 DeepDyve

Jun 11 2020 0183 32 Therefore a molybdenum flotation plant should not blindly apply diesel oil instead of kerosene as the collector for molybdenite but should select diesel oil that is suitable for the properties of its ore...

Copper Sulphide Ore Reagents For Copper Flotation

The chromite grade obtained during flotationthe reagents used in flotation are designed to maximize the recovery of the sulphide minerals that contain the pgms and reduce the gangue content in the concentratein order to selectively recover the pgm minerals thiol collectors are added with copper sulphate as an activatorat lower ph valu...

Molybdenum mining in the United States

Both copper sulfides and molybdenite are separated from the gangue by froth flotation To separate the molybdenite from the copper sulfides the copper/molybdenum concentrate is run through a molybdenite recovery flotation circuit in which chemicals are added to depress the copper meaning to prevent the copper sulfide minerals from...

Effects of pH and pulp potential on selective separation

molybdenite has been achieved with sulfide bulk flotation followed by selective molybdenite flotation by Na 2 S/NaSH addition because Na 2 S/NaSH acts as a depressant for copper sulfide in the appropriate quality of separation between gangue and valuable mineral It can can...

Investigation on Molybdenite Separation from a Complex

A Mo middling has been obtained through Cu-Mo bulk flotation In order to further enrich molybdenite and separate pyrite form this middling A series flotation tests were conducted to concentrate Mo Important parameters including regrinding fineness CaO dosage and cleaning flotation stages were optimized to enhance Mo enrichment In addition a close-circuit flotation test was conducted...

US2255776A

molybdenite flotation percent aggregate sulphides Prior art date 1939-01-09 Legal status The legal status is an assumption and is not a legal conclusion Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed Expired - Lifetime Application number US250014A Inventor Thomas A Janney Alpha...

US3811569A

A process for separating molybdenite from copper concentrates containing copper and iron sulfides gangue materials and an organic collector comprising 1 conditioning the concentrate in aqueous suspension at a pH below about 7 with a soluble metal salt 2 contacting the so treated concentrate with hydrogen peroxide at pH of about 4 to about 8 3 subjecting the concentrate from 2 to a...

A New Approach to Selectively Reject Naturally Hydrophobic

Nov 23 2020 0183 32 Efficient separation of naturally hydrophobic gangue such as talc and carbonaceous materials from sulphide minerals in flotation is becoming a significant challenge in many processing plants due to the need to process lower grade and more complex or Considering the hydrophobic nature of these gangue minerals prefloating them at the beginning of the flotation circuit in the...

molybdenum flotation mining

The milled ore/gangue powder is mixed with a liquid and aerated in the flotation step The less dense ore rises in the froth to be collected while the gangue sinks to be discarded Flotation separates the metallic minerals from the gangue this way and in the case of copper/ molybdenum ores separates molybdenite from copper sulphideget price...

remove molybdenum by flotation

Molybdenite MoS2 is the predominant economic molybdenum mineral so the challenge is primarily to effectively remove essentially all the gangue and pyrite Flotation is conducted at high pH levels often times greater than 11 using lime »More detailed...

Process mineralogy as a key factor affecting the flotation

A Bahrami et al Process mineralogy as a key factor affecting the flotation kinetics of copper sulfide minerals 431 used for more than a century in the concentration of copper sulfide minerals 20 This technique is based on the wetta-bility of minerals and is designed to recover the mineral...

Frontiers The Behavior of Gangue During the Flotation of

Similar to what has been shown in this present work on the depression of gangue an investigation into the role of Ca 2 ions on the surface properties of molybdenite in copper porphyries by Li et al 2015 showed that the floatability of fine molybdenite particles decreased significantly when Ca 2 ions and silica coexisted in the flotation pulp...

Mineral Processing 101 Molybdenum Ore Beneficiation

Overview The beneficiation processing of molybdenum ore is mainly performed by flotation and the recovered molybdenum mineral is molybdenite MoS2 Sometimes in order to improve the quality of molybdenum concentrate and remove impurities the concentrated molybdenite would be subjected to a further step of chemical beneficiation processing...

Flotation of Chalcopyrite and Molybdenite in the Presence

The interaction of OM with sulphide minerals and its effects on their flotation are little understood Although chalcopyrite recovery and grade are generally high in the flotation of most copper and molybdenum ores this is not the case for molybdenite whose flotation is much lower and sensitive to changes in hydrodynamic and pulp conditions in the flotation cell 9 10 11 12...

APPLICATION OF MODIFIED QUEBRACHO EXTRACTS TO THE

salts flotation The Floatan T5 is formulated as pyrite and other gangue minerais depressor in copper sulfurs flotation and the one denominated M3 is a dispersant-depressant used in the flotation of minerais that contain talcose and sericitic gangue 12 Molybdenite flotation...

Enhancing the Performance of Cu

carrying capacity and excellent separation from non-floatable gangue Its use where valuable minerals are to be floated such as in the bulk flotation of copper minerals and molybdenite takes advantage of its excellent collection efficiency and froth stability The inclusion of wash water...

flotation process molybdenum

Metallurgical ContentThe Molybdenum Process FlowsheetGrindingCoarse Flotation CircuitRegrind CircuitFine Flotation CircuitConcentrate TreatmentTailingsFlotation of Molybdenite from Copper This molybdenum flotation circuit based on tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangue...

PDF Selective flotation separation of molybdenite and

by reverse flotation of the clay gangue including the reverse flotation of coal 8-10 and iron ore 2 11 Talc is one of the most common hydrophobic cla y minerals encountered in complex...