The U.S. Bureau of Mines and Great Salt Lake Minerals and Chemical Corp. developed a froth flotation process for concentrating potassium salts from Great Salt Lake solar evaporites containing about 5 percent K. The crude evaporites, which were predominately halite (NaCl) with smaller amounts of kainite (KCl·MgSO4·2·7H2O) and …

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS. ... Petrographic and x-ray diffraction analysis of the ore indicated that sylvite (KCl) and halite (NaCl) were the major minerals present. ... Flotation desliming using the cationic flocculant-caprylic acid-glycol ester reagent scheme required 150 grams per ton (0.3 pound per ton) of flocculant ...

The flotation of sylvite (KCl) and also some accessory minerals (e.g. kieserite, langbeinite) from crude potash salts are processes used to a large extent all over the world. ... For the separation of sylvite and halite by flotation n-alkylammonium salts having chain lengths between ca. C12 and C20 have been the standard collectors for …

The flotation separation of sylvite from halite, therefore, must be carried out in co-saturated brine solutions with an ionic concentration of around 6-7 mol/L, which is ten times higher than the ...

Flotation Separation of Sylvite (KCl) and Halite (NaCl) with n-Alkylammonium Salts and n-Alkyl Sulfates

For kainite-halite ore enriched by direct flotation in the saturated aqueous solution of magnesium chloride with a density of 1284 kg/m ³ and pH 6–7, lower aliphatic amines (C 10 –C 12 ) in ...

For KCl flotation using only amines, the upper limit of the size of the floated sylvite usually does not exceed 1–1.2 mm (Titkov et al., 1982). Flotation tests have shown that, at the same collector dosage of 100 g/t, the floatability of sylvite and halite without ultrasonic treatment varies according to the size fraction (Fig. 2). With a ...

The chemistry of halite flotation waste of potash processing is the following: NaCl (87.78 mass fraction, %), followed by KCl, CaSO 4, MgCl 2, insoluble residue, H 2 O cryst., Br − [80]. Fine ...

Carnallite recovery by reverse flotation of halite with dodecyl morpholine (DDM) as collector has been applied in industry. Despite successful use in industry, the surface chemistry for halite flotation with DDM collector is not clear. Therefore the major objective of this thesis research was to examine the flotation chemistry in detail and understand …

In froth flotation separation process, the collector molecular design has a crucial effect on potash processing to ensure sustainable production of potassium fertilizer (KCl) that is important to secure food supply in human society. Carnallite is an important source of KCl fertilizer production in industry. Reverse flotation has been used to …

In order to improve the separation of sylvite and halite in SDIC Xinjiang Lop Nur potash Co. Ltd. (SLNP), in this work, the flotation kinetics of sylvite and halite under different collector dosages were investigated. It was observed that the increased speed of halite was much faster than sylvite in …

flotation halite froth sodium chloride ore 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 to the accuracy of the status listed.) Expired - Lifetime Application number US775728A Inventor James L Keen Joseph W Opie

In order to improve the separation of sylvite and halite in SDIC Xinjiang Lop Nur potash Co. Ltd. (SLNP), in this work, the flotation kinetics of sylvite and halite under different collector dosages were investigated. It was …

To evaluate the effect of SDBS on the flotation kinetics of picromerite and halite, a classical first-order flotation model was employed to fit a flotation time-accumulative recovery …

The flotation-based separation of the salt minerals sylvite (KCl), halite (NaCl), carnallite (KCl·MgCl2·6H2O) in saturated solutions of electrolytes (KCl–NaCl–H2O and MgCl2–KCl–NaCl ...

this work, the flotation kinetics of sylvite and halite under different collector dosages were investigated. It was observed that the increased speed of halite was much faster than …

Titkov et al. (2003) reported on the use of alkylmorpholines as collectors in the flotation of halite. Research was carried out on saturated research grade sylvinite and carnallite solutions where the collectors used were aliphatic alkylmorpholines. ... on the surface of the KCL. Such detailed analysis and research would be almost impossible ...

Selective potash flotation collector for halite (NaCl) Armoflote 619 is a selective collector for flotation of halite from potash salts, especially potassium double salts such as carnallite, ite and kainite. Armoflote 619 floats halite (NaCl) from potassium double salt as carnallite KClMgCl 2. 6H2O ite K 2 SO 4 MgSO 4 6H 2 O, and ...

As collectors for halite flotation the alkylmorpholines are now used. Alkylmorpholines produced by Akzo Nobel Surface Chemistry AB are cationic collectors with high operation selectivity, but are characterized by relatively high cost. In the presence of clayey-carbonate impurities (slimes), the components of carnallite ores which actively …

The detailed discussion about the extraction techniques is presented in below Sects. 3.1.1 to 3.1.5. From Soluble Salts. 3.1.1 Solution Mining or Conventional Mining. Solution mining is the simplest method to recover potassium from water-soluble salts like sylvite, sylvinite and halite.

In order to improve the separation of sylvite and halite in SDIC Xinjiang Lop Nur potash Co. Ltd. (SLNP), in this work, the flotation kinetics of sylvite and halite under different collector dosages were investigated. It was observed that the increased speed of halite was much faster than sylvite in terms of flotat

The carnallite mineral for flotation separation tests was obtained from Qarhan Salt Lake (Qinghai Province, China). The ingredient of carnallite ores by mineralogy analysis were largely 78.27% carnallite (KCl·MgCl 2 ·6H 2 O), 19.94% halite (NaCl), 1.02% gypsum (CaSO 4 ·2H 2 O) and 0.77% sylvite (KCl). The bench-scale flotation separation tests …

POLYCOL ARMA 619 is a strong Collector & Frother which is applied in Flotation of Halite (NaCl) from Sylvite (KCl). It is Proprietary Formulation. POLYCOL ARMA 619 is used in flotation at acidic pH. Dosage rate of POLYCOL ARMA 619 depends on ore type, grinding size and water quality. Technical Data.

In recent years the industrial application of a new flotation process has been initiated, namely the reverse flotation of carnallite, the beneficiated carnallite being …

In the flotation process, halite (NaCl) - loaded s rose na to the surface of the pulp and made NaCl to be separated from carnallite ore. The carnallite concentrate was collected, filtered, dried, weighed and measured the ur contents of NaCl and KCl in it. The diagrammatic sketch of flotation behavior with Jo using BMTB or TDM as the ...

Halite, naturally occurring sodium chloride (NaCl), common or rock salt. Halite occurs on all continents in beds that range from a few metres to …

Detailed characteristics linked to the grain size, chemical composition, mineralogical composition, flotation type, reagent type, reagent dosage, and P 2 O 5 recovery are described in Table 2 S. Fine sedimentary phosphate ore (21.5% P 2 O 5) from Yichang, China was recovered using reverse flotation. This phosphate ore was characterised by …

Armoflote 619 is a selective collector for flotation of halite from potash salts, especially potassium double salts such as carnallite, ite and kainite. Armoflote 619 floats …

Detailed results of the parametrization and validation for alkane and benzene compounds are presented. ... The possibility of application of halite flotation for potash ore pre-benefication has ...

Conclusions. 1. Alkylmorpholine sorption at halite proceeds with high selectivity, which creates the conditions for efficient and selective flotation separation of halite and carnallite mixtures. 2. The influence of hydrocarbon radical length upon the efficiency of alkylmorpholine operation has been investigated at various temperatures of ...