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 methods are economically limited to about 17% Al2O3. The problem in feldspar flotation is to recover slime free granular products, all minus 20 mesh, usually with not over
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. The Non-Hf Feldspar Flotation Method. In recent years
Meanwhile, the flotation recovery of feldspar and spodumene changed only a little as NaOL: DS molar ratio changed from 3:1 to 6:1 where the recovery of spodumene remained above 90 %, while that of feldspar remained below 30 %. The difference in floatability of the two minerals in the presence of mixed collector is obvious, especially the molar ratio of NaOL to DS is 4:1 according to the result
Flotation separation of feldspar Download PDF Info Publication number US3844939A. 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
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 stone structures and similar physical chemistry properties. What is the development trend of feldspar processing?
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.
the flotation of alkali feldspar at natural pH and in HF medium in the presence of an amine type collector, Genamin-TAP [4,5]. The authors have also indicated that some bivalent salts can be used to induce this differential separation . The possibility of recovering mica, feldspar and quartz from granite quarry operations in Missouri, Minnesota and Wisconsin showed that recovery of feldspar
1. 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).liming (1979) reported that HF creates a large difference in the minerals’ zeta potentials as the zeta
This stone 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 elucidate
Flotation Separation. With experience in Feldspar flotation separation, flotation cell is the main mining machines in this part, the slurry dealt with agential through milling and inflating can make certain particles of it selectively attaches to the bubbles to achieve mineral separation.
Flotation separation of Na-feldspar from K-feldspar by monovalent salts Abstract. 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
US2297689A 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 separation quartz acid flotation Prior art date 1940-04-05 Legal status (The legal status is an assumption and is not a
Na-Feldspar, K-Feldspar, Flotation, Sand Separation, Effect of pH . T. R. Boulos et al. 436 1. Introduction Feldspars are indispensable raw materials for many industries, such as ceramics, glass and fillers for plastics production. Considerable reserves of feldspar varieties are found in the Eastern Desert of Egypt, most of which are used as it is without processing. The development of a