Continuous two-step process for preparing magnesium sand by electric smelting

Application Number: 00110800
Application Date: 2000.08.17
Publication Number: 1280961
Publication Date: 2001.01.24
Priority Information:
International: C04B2/00;C04B35/05
Applicant(s) Name: Sun Shougang
Inventor(s) Name: Sun Shougang
Patent Agency Code: 21202
Patent Agent: wang changmin
Abstract A continuous two-step process for preparing electrosmelted magnesia includes such steps as crushing the magnesite ore into 8-12 cm blocks, calcining at 900-1100 dge.c in vertical reflecting furnace, discharging the calcined until ore fully burnt but not broken, ore leaving furnace at 800-900 deg.c, and then immediately smelting in electric arc furnace. Its advantages include low electricity consumption (2000-2200 kw/ton), short period (7.5hr) and low cost.