Separation of feldspar from quartz by flotation. Lawrence J. Herber. Lawrence J. Herber. Department of Physics and Earth Sciences, California State Polytechnic College, Pomona, California 91766. Search for other works by this author on GSW. Google Scholar. American Mineralogist 1969
Abstract Flotation experiments performed on a quartz-feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of hydrofluoric acid HF simply by the aid of a frother. High grades and good recoveries were obtained for both quartz and feldspars. A feldspar concentrate of 99.9 at a recovery of 95.6 was produced.
feldspar acid separation quartz flotation Prior art date 1940-04-05 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 US328083A Inventor Omeara Robert Gibson Original ...
Nov 01, 1999 Flotation responses of quartz and feldspar in 20 mgl diamine solution PDP and as a function of various depressants concentration 5.10-4M. It can be seen in Figure 2 that it is evident the difference in floatability of minerals in the flotation cell in presence of EDTA and the best quartz feldspar separation are obtained at pH of around 2.
An alternative process which exhibited effective separation of quartz and feldspar while recycling the tailwater from the flotation was proposed. The effect of hydrofluoric acid HF pretreatment on flotation of feldspar and quartz using dodecylamine DDA as collector was investigated by micro-flotation, zeta potential, pyrene fluorescence ...
The role of of quartz can be obtained in a wide pH range between pH 1.0 and surface silanol groups in flotation separation of quartz from feldspar, pH 10, and also that a small addition of DAA causes, to some in Proceedings XVIII IMPC, Sydney, pp 845-849. extent, a microcline collection in the pH region 4
Previously, a selective flotation separation of feldspar in the presence of HF was proposed by Fuerstenau et al. in an acidic environment pH 2.1.It was suggested that the HF method can achieve a good separation of feldspar and quartz with a high grade of feldspar and a high-quality quartz .However, there is a large amount of chemical activator HF or NaF in the flotation system, as ...
1. A froth flotation process for separating feldspar from quartz-feldspar sands ore consisting essentially of the steps of subdividing said ore to produce at least a fraction having a particle size less than about 1 mm, collecting said fraction and washing the same with water to effect desliming, introducing the washed fraction at a solid concentration of about 20-30 wt percent into an aqueous ...
Dec 09, 2018 In the conventional flotation separation of feldspar-quartz, hydrofluoric acid is used to suppress quartz and activate feldspar, and a long chain amine salt acetate or chloride is used as a collector. The bulk of amine collectors used in current feldspar operations are applied as the water-soluble acetates of the free-base amines.
An improved process for separating feldspars from feldspathic ores by means of froth flotation wherein a combination of a higher aliphatic amine salt and a higher aliphatic or aromatic sulfonate is used as a flotation reagent, eliminating the necessity for activation with hydrofluoric acid.
Flotation of Feldspar, Spodumene, Quartz and Mica from Pegmatites ... by-product mica, feldspar and quartz from hard rock pegmatites. 56 Kings ... of a lower grade, dry ground mica of relative coarse size, concentrated as by- ... mica, removal of undesirable iron-garnet minerals and feldspar-quartz separation
Abstract This paper reviews the application of flotation for the separation of feldspar from the other minerals with which it naturally occurs such as quartz, clay minerals, mica, ilmenite, rutile, anatase and magnetite as well as the separation of the individual feldspar minerals themselves. Much of the published information on feldspar flotation relates to fundamental studies seeking to ...
Jul 27, 2020 02 2.The separation of feldspar and other non-metal minerals in quartz extraction. Quartz has similar characteristics with feldspar, clay and other non-metal minerals. Therefore, it is quite different to separate feldspar in quartz separation. Washing - classification - deslime, flotation, and acid leaching are common technologies.
Keywords Feldspar, Selective separation, Weathered granites, Flotation, Monovalent salts Granite and granodiorite deposits are widely scattered throughout in Eastern Black Sea region of Turkey. These granitic bodies also contain considerable amounts of quartz, Na-feldspar, K-feldspar, mica and other color-imparting ferruginous impurities.
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.
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. We trace the stepwise enrichment of quartz to 95-100 purity with our procedure by X-ray diffraction analysis.
Potassium feldspar and quartz are all silicate minerals with frame structure,and have the similar crystal structure and physicochemical properties. Therefore, flotation has become the main method to separate potassium feldspar from quartz. The separation of potassium feldspar from quartz with anion and cation mixed collector was studied in the paper.
Aug 25, 1991 A flotation using HF is capable of separating feldspar from quartz when the particle size is minus21010mum. In a mixed sample containing quartz of minus10mum, feldspar can be removed from quartz when activation by HF is performed
Sep 06, 2014 Flotation experiments were performed to investigate the separation of muscovite and quartz in the presence of dodecylamine DDA, tallow amine TTA and dodecyltrimethylammonium bromide DTAC. The adsorption mechanisms of these three kinds of amines on muscovite and quartz were studied by FT-IR spectrum analysis, contact angle measurement and molecular dynamics MD
for acidic minerals, were used in the flotation of feldspars in the thirties. In 1982, it was found that C 6-14 primary amine hydrochloride collectors were used for the flotation of feldspars in presence of HF or a mixture of HF and NaCl. The C 10-12 amine gave the best flotation results 7 8. The feldspar was activated whereas the quartz was
Mar 20, 2019 Sandvik K 1979 Flotation properties of feldspar and quartz. Minerals Research Laboratory. 19. Shimoiizaka J, Nakatsuka K, Katayanagi T 1976 Separation of feldspar from quartz by a new flotation process. World Mining and Metals Technology Port City Press, Baltimore, pp 428438. Google Scholar 20.
Apr 14, 2016 The problem in feldspar flotation is to recover slime free granular products, all minus 20 mesh, usually with not over 10 finer than 200 mesh. Flotation under these conditions is critical and pulps are abrasive as well as corrosive. Action of the feldspar pulp must be counteracted by proper selection of equipment to withstand these conditions.
quartz, feldspar and kaolin, and smaller amounts of mica and iron-containing minerals. The ore reserve is approximately 35 x 106 tonnes of siliceous and feldspathic sand and kaolin3. This paper decribes the application of magnetic separation and froth flotation techniques for the beneficiation of the 50074 m fraction, in which the feldspar ...
Jun 21, 2019 Scrubbing desliming magnetic separation is suitable for quartz minerals with limonite, tourmaline, hematite, biotite and other magnetic impurities. Scrubbing desliming magnetic separation flotation is suitable for quartz minerals with impurities before and feldspar.