potash ores slimes

OneMine | Direct Flotation of Potash From Insoluble Slime …

The Bureau of Mines devised a direct flotation method for treating low-grade carnallite (KCl*MgC12*6H20) and sylvinite (a mixture of KC1 and NaCl) ores characterized by a high content of water-insoluble impurities. The procedure consists of flocculation-depression of the insoluble slimes; decomposition leach (carnallite only); potash rougher, cleaner, and …

Potash Mining

In potash flotation, slimes depressants such as starch, guar gum, dextrin, and synthetic compounds are typically used. ... Potash ores from the Carpathian deposits in the Ukraine contain several minerals, and processing involves grinding and hot leaching with a "synthetic kainite" solution. The leaching process dissolves epsomite, kainite ...

A kerosene/aqueous emulsion used as a collector in potash ore desliming

The removal of slimes (water-insoluble minerals) from high slime-containing potash ores from Qinghai Province, PRC, was investigated using flotation. A higher slime flotation recovery was obtained when a surfactant (polyoxyethylene fatty acid ester)–kerosene water emulsion was used as the collector. The stabilities of the …

Wastes of Phosphate and Potash Ores | SpringerLink

7.2.1 Potash Ores. Potash is mined from potash deposits and as a by-product from rock salt (i.e. halite) ores. The nature of these deposits largely stipulates the mining method. ... phosphatic clay s are also referred to as fines or slimes. The production of slimes is, of course, minimal for those deposits where the clay content is ...

Selective flocculation and flotation of slimes from sylvinite ores

Selective flocculation and flotation of slimes from sylvinite ores DE DE2309583C3 (de) : : Verfahren zur Abtrennung von Tonschlamm aus Sylvinit-Roh salzen ... Collector for flotation of clay minerals from potash ores US8720694B2 (en) : : Cytec Technology Corp. ...

TESTING AND EVALUATION OF MODIFYING …

Depressants play an important role in effecting selective sylvite flotation in potash ore processing. Long chain polysaccharide depressants have been used effectively in sylvite …

OneMine | Beneficiation Of High-Clay Potash Ores By Flotation

The Bureau of Mines investigated the concentration characteristics of high-clay sylvinite ores from four potash companies operating in the Permian Basin near Carlsbad, N. Mex. These ores, containing 13 to 22 percent K20 and 3 to 7 percent clay slimes, cannot be effectively processed by current commercial flotation methods because of their high …

Removal of Insoluble Slimes from Potash Ore Using …

Abstract The low grade potash ores contain large amount of fine water insoluble minerals, which was defined as slime here. The removal of the slime from …

Continuous Flotation of High-Clay Potash Ores. | National …

The Bureau of Mines investigated the concentration characteristics of high-clay sylvinite ores from potash companies operating in the Permian Basin near Carlsbad, N. Mex. These ores, containing 14 to 19 percent K2O and 3 to 5 percent clay slimes, cannot be effectively processed by current commercial flotation methods because of their high-clay ...

Slime coatings in froth flotation: A review

Slime coating is a significant phenomenon in froth flotation. The adverse effects of slime coating, by which a value mineral is covered by slimes and prevented from direct contact with collectors and/or air bubbles, have been recognized for decades. It happens ubiquitously in the flotation of various minerals, including sulfide minerals ...

Flotation desliming of potash ores

Abstract. In the present paper a new low cost process of potash ore preparation by dry crushing to flotation size suggested by JSC Halurgy (Mineral Salt Production) is put under consideration. It ...

Treatment of Carnallite Potash Ores by Selective Flocculation

"This paper examines the development of two new selective flocculation techniques for recovering KCI values from low grade carnallite potash ore.Direct recovery of KCI was achieved using one of two mid-range molecular weight polymers, one non-ionic and the other strongly cationic, in conjunction with the same selective anionic dispersant. …

Removal of Insoluble Slimes from Potash Ore Using …

Abstract. The low grade potash ores contain large amount of fine water insoluble minerals, which was defined as slime here. The removal of the slime from the …

Potash : Deposits, Processing, Properties and Uses

Potash is the term generally given to potassium chloride, but it is also loosely applied to the various potassium compounds used in agriculture: po tassium sulfate, potassium nitrate or double salts of potassium and magne sium sulfate (generally langbeinite, K S0 • 2MgS0 ). Sometimes the var 2 4 4 ious compounds are differentiated …

Beneficiation of High-Clay Potash Ores by Flotation.

These ores, containing 13 to 22 percent K2O and 3 to 7 percent clay slimes, cannot be effectively processed by current commercial flotation methods because of their high slime content. A solution to this problem was shown to be the use of two-stage moderate scrubbing conditions and washing of the ore as opposed to strenuous attritioning.

TESTING AND EVALUATION OF MODIFYING REAGENTS …

4.5 Slimes in the Flotation of Potash Ores 32 V . 4.5.1 Mineralogical Composition of the Slimes 33 4.5.2 Clay Minerals 34 4.5.3 Other Water Insoluble Minerals 35 4.6 Effect of Slimes on Potash Ore Flotation 35 4.7 Scrubbing and Desliming 37 4.8 Flocculation/Flotation of Slimes 39

US2757796A

US2757796A - Treatment of potash ores - Google Patents Treatment of potash ores Download PDF Info Publication number US2757796A ... slimes flotation hydroxide Prior art date 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 …

OneTunnel | Adsorption of Guar Gum on Potash Slimes

Adsorption of guar gum was investigated on model minerals typically found in water-insoluble slimes of potash ores. The ionic strength of the adsorption mixtures was varied from distilled water to saturated NaC1 and KC1. The tests were also performed using a saturated brine. The adsorption density of guar gum on illite, dolomite, and kaolinite …

Treatment High Clay Potash Ores by Flotation

These high-clay ores, containing 13 to 20 percent K2O and 3 to 7 percent clay slimes, cannot be effectively processed by current commercial flotation methods. The present concentration processes for potash minerals in Carlsbad relate mainly to ores containing 1 percent or less of clay-slimes with a K2O content of 18 to 25 percent that …

Intensification of the flotation separation of potash …

The use of low solubility amines and presence of clay minerals in the ores lead to non-selective adsorption of the collector on the slime and significantly increase …

Removal of Insoluble Slimes from Potash Ore Using …

The low grade potash ores contain large amount of fine water insoluble minerals, which was defined as slime here. The removal of the slime from the low grade of potash ores (KCl < 10 %; slime > 40 %) from the Mahai Basin, Qinghai Province, PRC, was investigated using flotation. The characteristics of the slime sample, which was …

OneMine | Adsorption of Guar Gum on Potash Slimes

Removal of insoluble slimes from potash ore by air …

SUMMARY AND CONCLUSIONS The results from the preliminary testing suggest that the removal of insoluble slimes from sylvinite ores by ASH flotation can be …

Removal of Insoluble Slimes from Potash Ore Using …

Abstract. The low grade potash ores contain large amount of fine water insoluble minerals, which was defined as slime here. The removal of the slime from the low grade of potash ores (KCl < 10 %; slime > 40 %) from the Mahai Basin, Qinghai …

OneMine | Flotation of Potash Ores

The most important type of potash ores, sylvinite, contains sylvite, halite and a small percentage of insoluble gangue [sulfates (anhydrite), carbonates (dolomite), and clay minerals]. Primary normal long-chain amines are exlusively utilized to float sylvite from halite, but since mines are also adsorbed by insoluble slimes, the process requires prior …

Potash Laboratory Flotation Tests

Over 95 percent of the insoluble slimes were removed from a potash ore containing 5 to 7 percent insoluble slimes using a large-volume, deep- separator. A fourth process employed a nonionic …

Flotation of Insoluble Slimes from Potash Ore

Flotation of Insoluble Slimes from Potash Ore. Filtration of the insoluble slimes flotation concentrates recovered 87 to 90 percent of the brine. Flotation …

OneMine | Flotation Of Insoluble Slimes From Potash Ore

Laboratory testing by the Federal Bureau of Mines has shown that the removal of insoluble slimes using selective flocculation and flotation is a viable method for treating low-grade potash ores which have a high content of water-insoluble impurities. Results indicated that up to 85 percent of the insoluble slimes could be removed from sylvinite ore containing 5 …

Flotation desliming of potash ores

The attrition process both with dispersing reagent addition and without it has been studied on potash ores of Verkhnekamsk, Gremyachinsk (Russia) and Tubegatan (Uzbekistan) deposits. ... Slimes attrition with dispersing reagents addition was found to affect positively both ore desliming performance and sylvite flotation results. The slimes ...