The beheviour of four low - molecule weight organic acid lactic acid , hydroxy - acetic acid , mercapto - acetic acid , glyconic acid as iron - containing silicate - aegirines depressants on the hematite direct flotation is investigated in this paper . the results of flotation tests with pure minerals , artificial mixture of minerals and naturally occurring ore show this depressants have good selectivity in flotation . the flotation separation of hematite from aegirine is achieved successfully with the four depressants 本文研究了四种小分子有机酸抑制剂乳酸、羟基乙酸、巯基乙酸、葡糖酸在赤铁矿正浮选中对含铁硅酸盐脉石霓石的抑制行为，纯矿物、人工混合矿与实际矿石浮选实验均证明了它们具有良好的选择性抑制作用，可以成功地实现赤铁矿与霓石的浮选分离。
Chener gold deposit is located in north of xunmadao fault , the types of ore are gold - brazil - quartz of vein and gold - multimetal - quartz of vein . the occurrence of gold - bearing quartz vein is controlled by ductile - brittle shear zone , most the occurrence of gold - bearing quartz vein included by schistous zone and cracked zone , in the strike direction of gold - bearing quartz vein , it " s high content and great thickness appear on nww , in the direction of tilt , it " s high content and great thickness appear on the part of transformation from big angel of tilt to small angel of tilt 矿石类型为金-黄铁矿-脉石英型和金-多金属硫化物-脉石英型。含金石英脉受韧-脆性剪切带控制，主要赋存于片理化带与破碎带中。在脉体走向上，北西西向脉体品位高，矿体厚度大；在倾向上，南倾，倾角较缓处品位高、矿体厚度大。
The metallic mineral has very few content ( 1 % - 2 % ) , the mineral of ore is mainly of pyrite , chalcopyrite , limonite , aurum and electrum etc . the gangue mineral is composed of chalcedony , micro grained quartz , calsite , sericite , adularia , aragonite , chlorite , laumontite , pyrophyuite , kaolinite and so on , which show the typical mineral assemblage of epithermal 矿石为典型少硫化物型，金属矿物含量极少( 1 - 2 ) ，主要有黄铁矿、黄铜矿、褐铁矿和自然金、银金矿等。主要脉石矿物有玉髓、微粒石英以及方解石、绢云母、冰长石、文石、绿泥石、浊沸石、叶腊石、高岭石等，属典型低温矿物组合。
The gangue minerals are mostly carbonating minerals , fluorite , barite , celestite and so on ; the rock alteration is slightly silicified , carbonated , baritizated , celestited , which is low - temperature alteration . because of continual downgoing extrusion from india plate to euro - asian plate , there are some thrusting nappe structures in lanping basin related to the orogens on the two sides 矿床中矿石矿物发育典型的中低温热液成因的矿物组合，如黝铜矿系列、方铅矿、黄铜矿等，脉石矿物主要为碳酸盐类矿物、萤石、重晶石、天青石等；围岩蚀变主要发育弱硅化、碳酸盐化、重晶石化、天青石化等低温蚀变组合。
