Process for producing high-nickel material using blast furnace

Abstract

This invention has publicized one kind of production craft of using blast furnace to prepare high nickelic material, it is separately to dry, smash, sieve the anthracite, limestone, red soil nickel ore; Then mix the sieved anthracite, limestone, and red soil nickel ore according to the proportion to obtain mixed materials; sinter the mixed materials, then smash, hot sieve and cold sieve the sinter to get sinter nickel ore; according to the proportion, separately set the sinter nickel ore and coke in the definite quantity hopper, then send them in the blast furnace to preheat and high temperature reduction smelt, in this process, it should arrange dregs timing and produce product timing, the obtained product is namely nickelic material. The raw materials of this invention provides the production craft of preparation nickelic material is broadly, energy consumption is low, the used original auxiliary materials does not contain sulfur, arsenic, cadmium, mercury and so on harmful elements, no environmental pollution, temperature difference small in reducing smelting process, the reducing smelting environment is easy to maintain, so the product quality is good.

Description

technical field [0001] The invention relates to a production process of metal raw materials, in particular to a production process of high-nickel materials that provide raw materials for nickel smelting. Background technique [0002] Nickel is a ferromagnetic metal element, which can be highly polished and corrosion-resistant. It is mainly used to make stainless steel and other corrosion-resistant alloys, such as nickel steel, chromium-nickel steel and various non-ferrous metal alloys. It can be used to make currency, etc. , the copper-nickel alloy with higher nickel content is not easy to corrode. It is also used as a hydrogenation catalyst and used in ceramic products, special chemical containers, electronic circuits, glass green and nickel compound preparation, etc. Nickel is an important strategic non-ferrous metal and one of the key raw materials supporting my country's economy and national defense. my country's nickel consumption ranks first in the world, reaching 300...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the high-nickel materials produced in my country are made of lateritic nickel ore with a nickel content of 0.9-1.7% as raw materials, and are smelted in a sintered blast furnace to obtain ferronickel materials. The highest nickel content can only reach 3%, and the energy consumption is relatively high. As a result, its production cost has increased significantly, and it cannot better provide a low-cost and high-quality raw material for reducing nickel

Some enterprises also use nickel sulfide ore as raw material to produce high-nickel materials, but in production, they need to turn nickel sulfide ore into high-nickel concentrate through ball milling, the production process is long and the cost is high