·Samples were collected from the Olympias flotation plant which enriches the ores collected from the Olympias and Stratoni mines The collected samples were classified as feed representative samples centimetric ore pebbles and samples from different stages of the flotation plant flotation sands as shown in Table 1
·At present antimony resources mainly exist in the form of antimony sulfide ore a the enrichment of the ore is mainly carried out by flotation [2] but a large amount of timony tailings is
·2 Flotation Flotation is a widely used technique particularly for fine grained ores In this process The crushed ore is mixed with water and flotation agents Air bubbles are introduced into the slurry Antimony rich particles attach to the bubbles and rise to the surface forming a froth that is skimmed off 3 Magnetic and Electrostatic
·Xanthates are normally used on gold flotation plants in conjunction with other collectors promoters] to enhance gold recoveries The recovery of gold is activated by sulphide ions and depressed by ferric ions [13] Amines are also used commercially to recover gold [5 14] Flotation of antimony ores Mining Magazine July 1964 pp 35 45 26
·A two stage roasting process similar to that used for arsenic sulfide ores can also volatilize antimony oxides and prevent adverse reactions such as the production of metallic antimony which can coat the surface of gold particles Nagy et al 1966 or the formation of silver glasses in high silver ores Matsukawa and Sakai 1956
·How much Flotation Depressants is needed Depressants are generally added to the grinding circuit or conditioner usually before addition of promoting and frothing may also be added direct to the flotation cleaner circuit particularly on complex ores when it is difficult to make a clean cut separation or where considerable gangue may be carried over
·Antimony is an important metal element silvery white with a high melting point high density and good thermal stability It is widely used in alloys flame retardants batteries and semiconductors However there are many types of antimony minerals According to geological causes and mineral combinations antimony ores can be divided into single antimony ores and
·Since high grade antimony ores are depleted there are many research studies involving the enrichment of low grade antimony ores For this ores mainly flotation is applied for beneficiation and
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