Research On Mineralogy Characteristics And Floating Of Different Causes Of Galena

The differences in flotation of the same namesulphide mineralite have attracted the attention of many scholars.However,due to the cross of geochemistry,mineralogy,mineralogy,and mineralogy,there is little research in this field.Few scholars believe that minerals formation has different degrees of influence on their planktonic differences.Galena is easy to float and difficult to be suppressed.In this paper,the typical lead-zinc deposits in China are mainly divided into three genetic types,namely hydrothermal type,hot-water deposition type,skarn type,which are selected to research including their chemical composition,lattice constants,pyroelectric coefficient,electrostatic potential,Fermi level changes,contact angle,surface element content,the relative content of Pb atoms on the surface and other mineralogical properties,combined with the single mineral flotation test,contact angle test,Ultraviolet absorption test,flotation electro chemistry.Meanwhile,the relationship between the mineralogical properties of different lead galena and its planktonicity is analyzed.The commonly used regulators of galenite are tested and analyzed the effect of different modifiers on the three galena.The study of the mineralogical properties of galenite shows that the ratio of S to Pb and the lattice constants of the three galenas are small.The medium-temperature hydrothermal galena Ag and Bi have high impurity contents,the semiconductor n-type has a low degree,the contact angle is maximum,the surface Fermi energy level of deionized water and Ting Huang solution changes minimum,the relative content of Pb atoms on the surface of the fracture surface is highest,the fracture surface has a morphological step.The hot-water deposition galena has a high Zn content,and the thermoelectric coefficient is lower,the degree of n-type is higher,and the morphology of the rupture surface has both the step protrusion and the strip micro-morphology of the platform.The cadmium-type galena contains high contents of Cu,Zn,and Sb as impurities,the thermoelectric coefficient is lowest,the degree of n-type is highest,the contact angle is minimum,the surface Fermi energy level of deionized water and Ting Huang solution changes maximum,the relative content of Pb atoms on the surface of the fracture surface is lowest,and the surface of fracture surface is mainly in smooth strip shape.The results of flotation experiments of different origins of galena indicate that with butyl xanthate as acollector,three different types of galena have the best flotation in neutral and weakly alkaline media,and their floatability deteriorates in strong acid and alkali media.The buoyancy of medium-temperature hydrothermal galena is the best,followed by hot-water deposition,and the skarn has the worst buoyancy.The medium-temperature hydrothermal type galena has the fastest floating rate,followed by skarn-type and hot-water deposition galena.Different regulators have different effects on the floatability of galena.K₂Cr O₇,Na₂S and CMC had good inhibitory effect on the three kinds of galena.The certain concentration of CaO had a strong inhibitory effect on the three kinds of galenite.Na₂SO₃ has weak inhibitory effect on the three kinds of galena.Zn SO₄ basically has no inhibitory effect on galena.The inhibitory effects of the same inhibitors on different formation of galenite are different.Finally,from the point of view of mineralogical chara cteristics,the main factors influencing the variability of different formation galena are discussed:natural contact angle,impurity content,thermoelectric coefficient,Fermi energy level change,the relative content of Pb atoms on the fracture surface,and fracture surface morphology.So it can explain the differences in flotation of different formation of galena.