use of depressants in froth flotation

patent us - concentrating fluorspar by froth flotation - google

various of the commercially available purified lignin sulphonates including the calcium magnesium sodium barium aluminum zinc and copper salts have been tested and found satisfactory as gangue depressants in our method of fiuorspar flotation when used in conjunction with an addition agent such as sodium fluoride

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enhanced phosphate flotation using novel depressants - uknowledge

nov 8 enhanced phosphate flotation using novel depressants froth flotation is the most efficient method for phosphate separation which is a physic-chemical separation improved phosphate flotation selectivity and reduced the dosages of collector and sodium silicate used as dispersant in

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the use of selective depressants for the separation of abs and hips

the recycling of fridges results in the production of a mixed plastic product containing high impact polystyrene hips and acrylonitrile butadiene styrene abs these plastics are difficult to separate because they have similar physical properties such as density froth flotation using selective wetting agents is one possible

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froth floatation process - youtube

may 5 follow us at https //plus google com/+tutorvista/ check us out at froth floatation proce

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introduction to mineral processing - chevron phillips chemical

froth flotation is considered to be the most widely used method for ore beneficiation depressants are chemicals that inhibit the flotation of minerals they are used chemicals referred to as depressants are added to the pulp to reduce the flotation of the copper minerals while allowing the molybdenum minerals to float

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alternatives for sodium cyanide for flotation control october

in the copper lead and zinc industries the primary uses for cyanides are as depressants for the flotation of iron and zinc minerals and for the reactiva- tion of copper effects must be weighed against possible effects on processing the continually leaner sulfide ore bodies adaptable to benefici- ation by froth flotation

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recent developments and advances in formulations and

chemical reagents used in froth flotation practice are classified according to the function they perform to achieve the separation of valuable from nonvaluable solid particles in modern flotation terminology flotation reagents are commonly grouped into five classes collectors depressants activators modifiers and frothers

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alternatives for sodium cyanide for flotation control october

in the copper lead and zinc industries the primary uses for cyanides are as depressants for the flotation of iron and zinc minerals and for the reactiva- tion of copper effects must be weighed against possible effects on processing the continually leaner sulfide ore bodies adaptable to benefici- ation by froth flotation

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flotation conditioners -modifiers -activators -depressants

mar 19 flotation conditioners -modifiers -activators -depressants the last group of reagents that we are going to discuss are the modifiers these are reagents that are used to change the characteristics of a mineral so that the interaction between mineral this would be reflected in froth color and bubble size

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patent woa1 - depressants for mineral ore flotation

apr 10 the present disclosure generally relates to depressants for use in mineral ore flotation processes according to an exemplary embodiment after completion of the flotation a gangue-enriched flotate froth for example a silicate-enriched flotate and a bottom fraction rich in the desired

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use of depressants in the direct flotation of a silicate-carbonate

use of depressants in the direct flotation of a silicate-carbonate phosphate ore uso de the batch flotation tests were carried out in a laboratory using a mechanical cell darma model d-1 sub-a provided with a mechanical froth scrapper for the removal of the floated material and a bucket with a 3 0 l capacity coconut

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the use of selective depressants for the separation of abs and hips

the recycling of fridges results in the production of a mixed plastic product containing high impact polystyrene hips and acrylonitrile butadiene styrene abs these plastics are difficult to separate because they have similar physical properties such as density froth flotation using selective wetting agents is one possible

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dextrins as selective flotation depressants for sulfide minerals

were tested as flotation depressants of galena and chalcocite in a hallimond cell with xanthate to make the ammonia were found to be promising selective depressants in the studies with model 1 1 mixtures of galena and roasting time and temperature used in the preparation of the dextrins tested in this study were as

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accounting for the froth in batch flotation tests - mintek

jun 5 batch flotation tests including the changes in froth stability can improve the understanding of the performance and interaction of the reagents used in batch flotation tests confined to merensky ore flotation 1 sulphides depressant research facility centre for minerals research

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froth floatation process - youtube

may 5 follow us at https //plus google com/+tutorvista/ check us out at froth floatation proce

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inorganic chemistry - froth floatation process - why cuso4 is

oct 12 other metals such as silver and lead can also be used to activate zinc but copper is cheaper than silver and less toxic than lead i read the following in a website which mentions the research as follows the role of copper sulphate in the flotation of pyrite has been studied a survey of a number of pyrite

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depressants and dispersants

iron sulfide pyrite pyrrhotite marcasite depressant used in the flotation separation of base metal sulfides alternative partial cyanide replacement to depress iron and zinc sulfides in pb / zn flotation unimax sd a specialty depressant for pyrite gangue sphalerite and pyrrhotite in lead and copper flotation systems

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flotation depressants - metallurgist

jun 26 first let's change the amount of the flotation depressants used the valuable mineral that isn't liberated from the unwanted mineral will begin to be depressed along with the waste for the floatation operator the change that will become most apparent is that the color of the froth will begin to reflect more of

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patent woa1 - depressants for mineral ore flotation

apr 10 the present disclosure generally relates to depressants for use in mineral ore flotation processes according to an exemplary embodiment after completion of the flotation a gangue-enriched flotate froth for example a silicate-enriched flotate and a bottom fraction rich in the desired

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depramin high performance additives for froth flotation

jul 10 used as a depressant in ore flotation with years of experience serving the mineral industry we have a track record with different ore types of which a few common examples are given below depramin depressants in froth flotation froth flotation is an important step in many mineral processing operations

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introduction to mineral processing - chevron phillips chemical

froth flotation is considered to be the most widely used method for ore beneficiation depressants are chemicals that inhibit the flotation of minerals they are used chemicals referred to as depressants are added to the pulp to reduce the flotation of the copper minerals while allowing the molybdenum minerals to float

Get Price

flotation depressants - metallurgist

jun 26 first let's change the amount of the flotation depressants used the valuable mineral that isn't liberated from the unwanted mineral will begin to be depressed along with the waste for the floatation operator the change that will become most apparent is that the color of the froth will begin to reflect more of

Get Price

use of depressants in the direct flotation of a silicate-carbonate

use of depressants in the direct flotation of a silicate-carbonate phosphate ore uso de the batch flotation tests were carried out in a laboratory using a mechanical cell darma model d-1 sub-a provided with a mechanical froth scrapper for the removal of the floated material and a bucket with a 3 0 l capacity coconut

Get Price

1 froth flotation fundamental principles flotation - researchgate

froth flotation can be adapted to a broad range of mineral separations as it is possible to use chemical treatments to selectively alter mineral surfaces so that they depressants ph equipment components cell design agitation air flow cell bank configuration cell bank control operation components feed rate

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enhanced phosphate flotation using novel depressants - uknowledge

nov 8 enhanced phosphate flotation using novel depressants froth flotation is the most efficient method for phosphate separation which is a physic-chemical separation improved phosphate flotation selectivity and reduced the dosages of collector and sodium silicate used as dispersant in

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mining froth flotation mining pelletization cp kelco

cp kelco has developed a line of celect cmc products that have been successfully used as selective depressants to prevent unwanted gangue minerals from floating this facilitates more cost-effective recovery of the valuable minerals improvement of the concentrate grade resulting in reduced smelting operation

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cellulase as a new phosphate depressant in dolomite-phosphate

apr 28 study the use of cellulase enzyme as a new phosphate depressant during fatty acid flotation of a single minerals tests were used to develop a selective flotation process for recovery of phosphate minerals from the natural after conditioning the pulp was transferred to a carefully cleaned froth column

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flotation conditioners -modifiers -activators -depressants

mar 19 flotation conditioners -modifiers -activators -depressants the last group of reagents that we are going to discuss are the modifiers these are reagents that are used to change the characteristics of a mineral so that the interaction between mineral this would be reflected in froth color and bubble size

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froth flotation of iron ores

ent selectivities augmented by the use of activators and depres- sants starches or their derivatives when added to certain flotation pulps act as selective depressants and improve the separations obtained there are few froth flotation processes in which cer- tain loosely defined starch products have not been tried at one

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1 froth flotation fundamental principles flotation - researchgate

froth flotation can be adapted to a broad range of mineral separations as it is possible to use chemical treatments to selectively alter mineral surfaces so that they depressants ph equipment components cell design agitation air flow cell bank configuration cell bank control operation components feed rate

Get Price