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.
Read MoreThis 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 ...
Read More1. Introduction. Froth flotation is the selected method for the separation of quartz and feldspar. In the conventional process, feldspar is floated from quartz by using hydrofluoric acid (HF) as activator for the feldspar and a cationic collector (amine) at pH 2–3 (O'Meara, 1939). (1979) reported that HF creates a large difference in the minerals' zeta potentials as the zeta ...
Read MoreUS2297689A US328083A US32808340A US2297689A US 2297689 A US2297689 A US 2297689A US 328083 A US328083 A US 328083A US 32808340 A US32808340 A US 32808340A US 2297689 A US2297689 A US 2297689A Authority US United States Prior art keywords feldspar acid separation quartz flotation Prior art date Legal status (The legal status is an assumption and is not …
Read MoreFlotation separation of feldspars from quartz was first accomplished in 1936 (Ladoo and Meyers, 1951, p. 216) and has been used commercial-ly for many years. For example, the feldspar plant at Kona, North Caro-lina produced from alaskite ore a pottery spar with a maximum amount
Read MoreFroth 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
Read MoreA remarkable separation of the quartz from FQA has been realized in an environmental friendly way. The froth flotation results show that the flotation recovery of quartz is 97.79% and that of FQA ...
Read MoreUsing pure albite and quartz minerals, the separation of albite from quartz using mixed cationic/anionic reagent schemes is assessed through Hallimond flotation, zeta potential and diffuse reflectance FTIR studies. The reagent schemes are tested in bench-scale flotation for the separation of albite from Greek Stefania feldspar ore. The single mineral flotation tests …
Read More1. 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 ...
Read MoreOur 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- purity with our procedure by X-ray diffraction analysis.
Read MoreQuartz can be floated from feldspar in diluted HF solutions simply by the aid of frothers. • There is a high flotation separation selectivity between quartz and different types of feldspar. • A feldspar concentrate of 99.9% at a recovery of >95% was produced. • The results could be …
Read MorePreviously, 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 ...
Read Morefor 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
Read MorePreviously, 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 . flotation separation of feldspar from quartz
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