The invention relates to a
processing method of
refractory high-iron low-
tin oxidized ore, belonging to the technical field of nonferrous
metallurgy and mineral separation. The technological process of the method comprises: crushing and finely
grinding ore, adding
reducing agent and binding agent into the ore, preparing the obtained ore into
pellets,
drying,
roasting and recrushing the
pellets, and then carrying out wet-type ore
grinding; adopting a magnetic ore separator to select out magnetic mineral
iron ore concentrate, and obtaining the
iron ore concentrate product containing more than 60% of iron; sorting non-magnetic mineral by cavity separation equipment such as a jerking table and the like, and obtaining qualified
tin ore concentrate containing less than 40% of
tin and tin-rich mineral products containing more than 4% of tin; furthermore, the total yield of tin reaches 65-75%. By adopting the process flow combining
metallurgy and mineral separation, the method can greatly improve the
recovery rate of the tin, simultaneously obtains an
iron ore concentrate product, simplifies the process flow of the mineral separation, is short in the process flow, low in production cost and environment-friendly, can greatly improve the
recovery rate of the tin and iron, effectively utilizes
limited resources, and has good application and popularization prospects.