Abstract

A process for co-production of nickel pig iron and rock wool products by using laterite-nickel ore. The process comprises the following steps: by using laterite-nickel ore as a primary material, preparing nickel pig iron and hot melt by smelting of a submerged arc furnace; screening out the hot melt having a temperature of 1450°C to 1580°C and an acidity coefficient of 1.6 to 1.9; injecting the hot melt into a holding furnace or injecting the hot melt into an insulting can to inject into the holding furnace in a roping manner, and keeping the temperature inside the holding furnace at 1400°C to 1500°C; guiding the hot melt in the holding furnace into a four-roll centrifugal machine by means of a controllable head piece and a diversion trench, and preparing the rock wool products by a rock wool product production process.

IPC Classes  ?

• C03B 37/005 - Manufacture of flakes
• C21B 11/10 - Making pig-iron other than in blast furnaces in electric furnaces