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Tin ore separation process

The density of tin ore is bigger than paragenetic mineral , so we use gravity concentration to processing tin ore . Because there are many oxide iron ore inside , for example : magnetite , hematite , if use gravity concentration or flotation , that could not separate them from tin , so magnetic will be added .

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Introduction

[Application]

All kinds of tin minerals ,  teallite,franckeite, cylindrite , canfieldite ,Black boron tin , Malaya Garnet , varlamoffite , schoenfliesite and so on .

[Process Description]

Crushing  and  Screening

Crush the raw ore to 20mm, then screen it  to two grade, (20mm~4mm) and (4mm~0mm).

Preselecting

Put the 20~4mm ore into heavy medium cyclone to be selected. Then the ore will enter into the rod mill. After that, it will be preselected in jig. The tailings over 2mm will be abandoned, the 2mm ore will be put into shaking table.

Bulk  Flotation

The concentration from jig and shaking board  will be separately selected by bulk flotation. The tailings will enter the  shaking board to get qualified tin concentrates.  

Separating  Flotation

After the bulk flotation, the concentrate  will be fine grinded, then will be do the flotation separation of lead zinc ore.  After that Lead antimony concentrates and zinc concentrates will be  produced.  

Gravity  Separation

The pulp enter into Φ300mm hydrocyclone, then overflow to Φ125mm and Φ75mm  hydrocyclone group to  remove the fine mud. The sand setting will enter into the process of thickening, desulphurization by flotation, and then cassiterite flotation .

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