Abstract A method for the recovery of precious metals such as gold and silver from various ore types is described which involves subjecting a slurry of the ore to a simultaneous leaching and electrodeposition process by mixing the slurry with a reagent such as an alkaline cyanide solution which provides for the leaching requirement and contacting said slurry with a metallic cathode with a

Flotation is the commonly used method for beneficiation of smithsonite and other oxidized lead and zinc minerals Ciccu et al 1979 Pereira and Peres 2005 Separation of oxidized lead and zinc minerals

Jul 29 1980· United States Patent 4214710 3936294 Reagent for zinc ore and method of utilizing same 1976 02 03 Childress 209 166 The process for selectively depressing calcium fluoride in the froth flotation of zinc sulfide which comprises effecting said froth flotation in the presence of an effective amount of collector for zinc sulfide and an

Patent US2048370 Method of froth flotation ore google patents US2048370 Try the new Google Patents with machine 1936 UNITED STATES PATENT OFFICE IHETHOD F FROTH FLOTATION ORE

US3893915A US369892A US36989273A US3893915A US 3893915 A US3893915 A US 3893915A US 369892 A US369892 A US 369892A US 36989273 A US36989273 A US 36989273A US 3893915 A US3893915 A US 3893915A Authority US United States Prior art keywords fluorite flotation pulp ton alkali metal Prior art date 1973 06 14 Legal status The legal status is an assumption and is not a

A method for leaching zinc from a zinc bearing carbonate ore the method comprising the steps of subjecting the zinc bearing carbonate ore to elevated temperatures of between about 300°C and about 900°C thereby producing a roasted ore subjecting the roasted ore to an aqueous acid or alkali leach thereby producing an aqueous zinc solution and subjecting the aqueous zinc solution to a zinc

Silver Lead Zinc Ore Processing Method using Flotation Crushing Section The crushing section of this 5065 ton mill consists of a conventional layout of single stage crushing The mine ore is fed from the coarse ore bin to a 9x 16 Forced Feed Jaw Crusher by means of a Apron Ore Feeder The crushed ore is conveyed by Inquire Now

The zinc recovery curves for bench flotation in terms of the quantity of Armac C and Na 2 S at pH 11 are given in Fig 2 According to the obtained results the optimum concentrations of Armac C and Na 2 S are 800 g t and 3000 g t respectively The recovery fell sharply at 2000 g t of Na 2 S indicating that this level of sulphidization is not sufficient for a feed containing a high amount of

Patent US2165268 Flotation of oxide ore minerals US 2165268 A Abstract available in Images 4 Claims available in Description OCR text may contain errors

direct reduction method of producing iron from ore Direct reduced ironWikipediaDirect Reduced Iron and its Production ProcessesIspatGuruMar 16 2013· In the gas based plant the reactor the reduction

lead zinc processing minemining com 4 7 5· Inquire Now Plasma Furnaces in Africa pyrometallurgy co za Synopsis Plasma furnace technology was first applied in Africa in the mid to late 1970s when it was realised that advantages could be obtained in the processing of

Jan 02 2003· The copper lead sulphide concentrate may be obtained from a complex copper lead zinc ore in which case the majority of the zinc is first removed by conventional flotation techniques and the copper lead sulphide concentrate treated with activated carbon prior to addition of the silicate dichromate reagent solution

Silver Lead Zinc Ore Processing Method using Flotation The mine ore is fed from the coarse ore bin to a 9x 16 Forced The classifier overflow is treated in a conventional manner using SubA Flotation Machines of celltocell design which enables double cleaning of the silverlead zinc ore zn Comments Off on Silver Lead Zinc Ore Processing Method

gold concentrate ore separator chrome ore slurry pump manufacturer Xinhai has achieved many technological achievements up to now Xinhai has got 88 patents another 15 patents are into the

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Zinc grade and recovery of zinc ore flotation for various temperatures in presence of 800 g t Armac C 3000 g t Na 2 S 250 g t SH and 500 g t sodium silicate at pH 11 According to these findings it can

This invention relates to a method of treating complex lead bearing ore materials and more particularly to a chloridizing process for treating a roasted complex sulfide ore such as one containing lead and zinc or other metal sulfides in which the lead is recovered as a sulfate and the other metals as chlorides

Apr 14 1981· The froth flotation takes place in the presence of a collector reagent for the zinc sulfide such as the dithiophosphate and xanthate compounds well known to the art See for example U S Pat No 3 086 653 which describes the use of salts of dithiophosphate esters such as the dialkyl esters as flotation promotors

ii Pap e 5 Acidconcentration 14 3 Impuritiesintheelectrolyte 14 7 Additionreagents 15 8 Spongyzinc 17 9 Electrodes 13 10 Circulationoftheelectrolyte 13 11

Abstract Methods and systems for removing copper minerals from a molybdenite concentrate One embodiment provides leaching copper from the molybdenite concentrate with a leaching solution comprising ferric chloride removing molybdenite from the leaching solution introducing an acid into the leaching solution and introducing O2 O3 or a combination of both into the leaching solution

which equipment is used for mining zinc lab3d nl mining widely used equipment lead and zinc ball mill filter press equipment used for mining de lead zinc separation by flotation froth flotation sulphide apr 4 during flotation of sf gold ore

lead zinc processing minemining com 4 7 5· Inquire Now Plasma Furnaces in Africa pyrometallurgy co za Synopsis Plasma furnace technology was first applied in Africa in the mid to

A method to produce ZnO has been patented that includes an organic solvent extraction stage to extract zinc out of zinc containing materials selectively stripping of the organic phase with nitric acid to produce zinc

Flotation is the commonly used method for beneficiation of smithsonite and other oxidized lead and zinc minerals Ciccu et al 1979 Pereira and Peres 2005 Separation of oxidized lead and zinc minerals from their gangues by flotation is extremely complex due to the similarities in physico chemical and surface chemistry of the constituent

which equipment is used for mining zinc lab3d nl mining widely used equipment lead and zinc ball mill filter press equipment used for mining de lead zinc separation by flotation froth flotation sulphide apr 4 during flotation of sf gold ore flotation machine gold cu pb zn iron flotation is widely used in gold gold mining ball mill

Spodumene ore and turquoise processing method Sep 12 2013· Spodumene and turquoise beneficiation methods are hand selected method and the flotation flotation method has positive flotation and reverse flotation positive flotation method is often used and its essence is the ore

Patents by Inventor Robert M Parlman Robert M Parlman has filed for patents to protect the following inventions This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office USPTO

A method for the colorimetic determination of zinc including the steps of a preparing a coloring reagent for zinc including 1 an aqueous soluble 2 pyridylazoaminophenol derivative or a salt of a 2 pyridylazoaminophenol derivative represented by the following formula I STR1 wherein 2 at least one surface active agent 3 a masking agent for a metal b adding the coloring reagent