Method for manufacturing molten metal containing ni and cr

C - Chemistry – Metallurgy – 21 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

53/65

C21C 5/35 (2006.01) C21B 13/00 (2006.01) C21C 5/00 (2006.01) C21C 7/068 (2006.01) C22C 33/04 (2006.01) C22C 38/40 (2006.01)

Patent

CA 2010356

A method for manufacturing molten metal containing Ni and Cr comprises a process of smelting and reducing Ni ore, and a process of smelting and reducing Cr ore. The process of smelting and reducing Ni ore comprises the steps of charging molten iron into a smelting reduction furnace having a top-blow oxygen lance and tuyeres for blowing stirring gas, charging Ni ore, carbonaceous material and flux into the smelting reduction furnace, blowing decarbonization oxygen and post-combustion oxygen from the top-blow oxygen lance into the smelting reduction furnace. blowing stirring gas for stirring the molten metal and slag inside the smelting reduction furnace from the tuyeres, and controlling post-combustion ratio( ( H2O + CO2 )/ ( H2 + H2O + CO + CO2 )) at 0.3 or more. The process of smelting and reducing said Cr ore comprises charging Cr ore, carbonaceous material and flux into the smelting reduction furnace holding the molten metal containing Ni, blowing decarbonization oxygen and post-combustion oxygen from the top-blow oxygen lance into the smelting reduction furnace, blowing stirring gas for stirring the molten metal and slag inside the smelting reduction furnace from the tuyeres, and controlling post- combustion ratio ( ( H2O + CO2 )/( H2 + H2O + CO + CO2)) at 0.3 or more.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method for manufacturing molten metal containing ni and cr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing molten metal containing ni and cr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing molten metal containing ni and cr will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2016215

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.