The invention discloses a device and process for preparation of iron salt through comprehensive utilization of
copper smelting tailings. The equipment provided by the invention comprises an open reaction still with a stirring function, a solution lifting pump, a
filter press and a solution
storage tank. The device and process for preparation of iron salt through the comprehensive utilization of the
copper smelting tailings have the benefits as follows: the
tailings generated by
copper smelting and part of waste iron chips are subjected to a reaction with dilute sulphuric acid according to a certain proportion, the generated
solid liquid mixture is subjected to separation again, the
solid slag is subjected to
classification treatment, such as returning to a smelting furnace or selling in other areas, according to the contents of valuable metals such as copper, a certain amount of waste iron ingots or iron chips is added in the separated liquid for a sufficient reduction reaction, and after that, the products are added into a waste
water treatment system to substitute for iron salt for use. The device and process for preparation of iron salt through comprehensive utilization of copper smelting tailings are characterized in that through the comprehensive utilization of the waste tailings
slag and various
scrap irons, the consumption of iron salt in the waste
water treatment process is greatly reduced, changing wastes into valuables is realized, and the effects of reducing cost and increasing efficiency are realized; besides, the iron salt is produced completely by adopting theprocess, the dependence on outsourced products is reduced, and the cost is reduced.