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Na-feldspar (albite) and K-feldspar (microcline or orthoclase) are major feldspar minerals with identical crystal structures and physico-chemical properties. Flotation appears to be a unique method of separating these minerals. Fundamental studies on an amine/feldspar system in the presence of monovalent salts have shown that separation of these feldspar minerals by flotation is …
Selective separation of Na- and K-feldspar from weathered granites by flotation in HF medium Ceramics – Silikáty 54 (1) 60-64 (2010) 63 concentration to determine the effect of amine on the selective separation of albite from orthoclase, seen in the Figure 5, the most efficient separation with high K2O
orthoclase and artorthite are used to describe potassium and calcium rich feldspar respectively. A variety of ... scrubbing, wet high intensity magnetic separation, direct flotation of feldspar and upgrading of feldspar using dry magnetic separators. 2.1. Crushing
F eldspar and n epheline s yenite509 Кб. Nepheline syenite, mined in Ontario, Canada, is a feldspathic rock that, when processed, competes with feldspar in glass, pottery, and filler use.Spain's reserves of feldspathic sands were said to be the largest in Europe (Regueiro y GonzalezBarros and …
Therefore, fluoroacid-free and other process methods are the future development direction of quartz - feldspar flotation separation process. (4) flotation separation of potassium feldspar and sodium feldspar. The separation of potassium feldspar (orthoclase and microclase) and sodium feldspar is a challenging subject because most of them are ...
An anionic-cationic flotation of two Egyptian feldspar samples, representing Road Ashaab locality of the Eastern Desert of Egypt, was investigated on both laboratory and pilot plant scales. The pegmatites belong to the alkali feldspar granite type, mostly microcline and orthoclase, KAL Si3O8 coarse grained rocks. Quartz, as the main gangue mineral, occurs in two forms as either free grains or ...
This paper describes the possibility of producing various grade feldspar concentrates by magnetic separation and flotation. A representative sample was obtained from the Manisa–Demirci region. It was composed of 5·94% K 2 O, 3·14% Na 2 O, 0·61% CaO, 0·41% MgO, 0·11% TiO 2, 0·65% Fe 2 O 3, 15·7% Al 2 O 3 and 73·08% SiO 2 as ...
Flotation is an effective way to remove impurities in feldspar. On the one hand, the impurity elements such as iron and titanium can be removed from feldspar, the combination of chemical agents depends on the existing components of impurity; on the other hand, the feldspar can be separated out the quartz, thus increase the content of K, Na.
Patent US3844939 - Flotation separation of feldspar - Google Patents. An improved process for separating feldspars from feldspathic ores by ... the feldspars in the froth or thus generated, leaving other constituents, such as...
Feldspar containing a certain proportion of quartz is saleable; No. 1 contains less than 5% of quartz, No. 2 up to 15% or 20%, and No. 3, still higher, but not over 30%. Microcline and orthoclase are the varieties of feldspar commonly mined. Users prefer a potash feldspar, but the soda feldspar, albite, is used to some extent.
Flotation separation of Na-feldspar from K-feldspar by monovalent salts Minerals Engineering, 14 ( 2001 ), pp. 733 - 740 Article Download PDF View Record in Scopus Google Scholar
Flotation separation of Na-feldspar from K-feldspar by . · A major proportion of feldspar ores contain both Na-feldspar (Albite) and K-feldspar (microcline or orthoclase) in the same matrix, usually in quantities of about 3–5% Na 2 O and K 2 O.
Table 3. Chemical Analysis of the Magnetic Separation and Flotation Concentrates. 1. It was shown that main titanium bearing mineral of the ore is Ti including biotite (phlogopite), which contains rutile needles as inclusion. 2. Quality feldspar concentrate from the Manisa-Alaşehir pegmatites can be obtained by magnetic separation r flotation ...
Request PDF | Experimental and MD simulation of 3-dodecyloxypropanamine and 3-tetradecyloxypropylamine adsorbed onto quartz (1 0 1) surface | In this paper, two surfactants, 3 ...
A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate ...
Froth flotation was used to separate feldspar from micas, iron-bearing minerals and quartz using cationic, anionic and acid flotation respectively. Evaluation of the separation was done by using data from yield of feldspar, X-ray fluorescence and cone firing test. The feldspar yield was used to evaluate the process efficiency.
Froth flotation was used to separate feldspar from micas, iron-bearing minerals and quartz using cationic, anionic and acid flotation respectively. Evaluation of the separation was done by using data from yield of feldspar, X-ray fluorescence and cone firing test.
The separation of silica from feldspar in the flotation step is highly efficient. Commonly more than about 50% and more commonly at least about 90% of the silica in the diluted feed material 47 reports to the concentrate 50 and commonly less than about 50% and more commonly no more than about 10% reports to the tailings fraction 54.
US3844939A US00232280A US23228072A US3844939A US 3844939 A US3844939 A US 3844939A US 00232280 A US00232280 A US 00232280A US 23228072 A US23228072 A US 23228072A US 3844939 A US3844939 A US 3844939A Authority US United States Prior art keywords flotation feldspar carbon atoms sulfonate medium Prior art date Legal status (The legal status is …
A major proportion of feldspar ores contain both Na-feldspar (Albite) and K-feldspar (microcline or orthoclase) in the same matrix, usually in quantities of about 3–5% Na 2 O and K 2 O. Despite their identical crystal structures and physicochemical properties, flotation appears to be the only plausible method of separating these minerals.
Feldspar Beneficiation Process Magnetic Flotation . flotation separation of potash feldspar and albite the separation of potash feldspar orthoclase and microcline and albite is a challenging issue because they are mostly mixed in feldspar deposits and these minerals have similar chemical structures and similar physical chemistry propertieshat is the development trend of feldspar ...
up a routine procedure for feldspar identification is the development of an adequate concentration method. In mineral industry flotation techniques and electrostatical separation are successfully used for the concentration of feldspars, cf., KIRCHBERG (1955). For large samples flotation is also used on a laboratory scale in many ore-dressing 4 ...
Jun 25, 2019· Flotation separation of potash feldspar and albite The separation of potash feldspar (orthoclase and microcline) and albite is a challenging issue because they are mostly mixed in feldspar deposits and these minerals have similar chemical structures and similar physical chemistry properties.
For this purpose, the selective separation of albite from orthoclase was investigated for a pegmatitic feldspar formation at low pH using H 2 SO 4 (pH 2.5–2.8) in the absence of HF. First, the amount of collector dosage was optimized for flotation conditions using one-stage with pine oil as frother.
A flotation process for recovering feldspar from a feldspar containing feed material, comprising the following steps: (1 ) forming an aqueous suspension of a feldspar containing feed material, in the absence of hydrofluoric acid, wherein the suspension comprises from 0.004 to 0.3 %wt. of a flotation reagent comprising: (a) one or more amines, containing at least one aliphatic hydrocarbon chain ...
A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate ...
ABSTRACT: An anionic-cationic flotation of two Egyptian feldspar samples, representing Road Ashaab locality of the Eastern Desert of Egypt, was investigated on both laboratory and pilot plant scales. The pegmatites belong to the alkali feldspar granite type, mostly microcline and orthoclase, KAL Si3O8 coarse grained rocks.
Feldspar flotation as a quartz purification method in . Our flotation cell, which has a volume of 600 cm 3, is built of borosilicate glass, holds up to 90 g of sample, and achieves quartz and feldspar separation in 2 h for very feldspar rich samples.
The results of tests to identify the effect of reagent type on flotation suggested that the optimum values were obtained for all products in terms of content and yield in the case of usage of DAHC for mica flotation, R-801 and R-825 for oxide flotation and Flotigam 4343 for feldspar flotation at a 0.063 < r < 0.300 mm size range.
Metallurgical Content. Beneficiation by Flotation of feldspar is well established. It is a simple matter by flotation to remove the contaminating impurities and keep the alumina (Al2O3) content at 19% even on low grade feldspar ores. Dry recovery …
A flotation process for separating feldspar from quartz within a feldspar ore, wherein a specific combination of flotation reagents is used under acidic conditions, in the absence of hydrofluoric acid. The flotation process comprises the steps of (1) forming an aqueous suspension of a feldspar feed in the presence of a flotation reagent comprising an amine containing a C 8 -C 50 aliphatic ...
A commercial feldspar product usually contains more than one feldspar mineral, and flotation conditions for the separation of individual feldspar minerals have …
For example, to realize the successful flotation separation of feldspar from quartz, a cationic collector and hydrofluoric acid (HF) were used traditionally as an activator in highly acidic ...
Flotation separation of potash feldspar and albite The separation of potash feldspar (orthoclase and microcline) and albite is a challenging issue because they are mostly mixed in feldspar deposits and these minerals have similar chemical structures and similar physical chemistry properties.
Abundant reserves of Na-feldspar (albite) and K-feldspar (orthoclase or microcline) are found in granites, syenite, tracite and pegmatites. As both feldspar minerals have similar chemical structure and physicochemical properties, their separation is challenging. Flotation is known to be the only technique to enable their separation.
Flotation separation of potash feldspar and albite The separation of potash feldspar (orthoclase and microcline) and albite is a challenging issue because they are mostly mixed in feldspar deposits and these minerals have similar chemical …
