The Separation Of Different Metal In Unwieldiness Gold Mine

The mineral resources are precious wealth that humanbeing rely onexistence, hence the importance of it in the national economy goes withoutsaying.Among all natural resources which are necessary for humanbeing, themineral resources occupy 70% or so.However, most people don't know much ofthe unreproducibility and the limitation and the nature that assure supply whichcan't fill of mineral resources .With continuous development of the natinonaleconomy,the different degree of crisis also emerged in the mineral resources ofour country.The characteristics of mineral resources in our country is that we havemore lean mines,more compound mines and more mines that are difficult tochoose and geographically their distribution is very unbalanced.Therefore,it isvery significant for us to practice the resources and environmental protection andsynthetically develop and utilize our mineral resources.On the basis of thistenet,This thesis adopts wet method metallurgy means to complete the separationof multi-metal chemical element of difficultly chose metallurgy mines andincreases the utilization of the resources and increases the economic performancethat mineral industry develop and makes the good environment benifit.The mostimportant thing is that it provides stable technique support for the continuabledevolopment of our mineral industry.This thesis mainly introduses the separation of multi-metal chemicalelements in the unmanagable gold mines .In the separation of multi-metalexperiments, we divide three individual departments experiment at the same time,â‘ The resin separation system;â‘¡The extraction separation system; â‘¢Thechemistry method deposition separation system. At first we adopt the pretreatment technics of low temperature chlorinationto convert gold, silver and colour of metals into the chloride at the same time: thechloride of copper, iron and zinc can dissolve easily in water, while leadenchloride in gold and silver don't dissolve in water and can't be lixiviated,so weuse the water to lixiviate a large amount of copper ,iron and zinc; gold ,silverand lead will stay in the steep. By finishing this process we could realize theseparation between precious metals and base metals and make full preparationsfor the later separation.The existence of a mass of Fe interfere the whole process of theseparation ,so we have to separate the Fe out of the lixivium.This thesis willadopts two separation methods: one is the P507 extraction method, the other is the...