EP 0643147 B1 20040519 - The production of ferronickel from nickel containing laterite
Title (en)
The production of ferronickel from nickel containing laterite
Title (de)
Verfahren zur Herstellung von Ferronickel aus nickelhaltigen Lateriten
Title (fr)
Procédé d'élaboration de ferronickel à partir de latérites nickelifère
Publication
Application
Priority
ZA 933055 A 19930830
Abstract (en)
[origin: EP0643147A2] A process for the production of ferronickel from nickel containing laterite is provided wherein the laterite includes at least a proportion of relatively fine material of size less than 10mm. The feed material may also be composed substantially or entirely of laterite fines or dust and also partially treated dust arising from conventional treatment routes, and may be pre-reduced, optionally after drying. The laterite is fed to the central region of the molten bath of a circular furnace in which at least one electrode in the roof acts as cathode, and the molten bath itself acts as anode. The process can be used to economically treat fine laterite ore previously discarded and stockpiled and even formerly non-viable deposits of laterite, and fines or dust arising from conventional treatment plants.
IPC 1-7
IPC 8 full level
C22B 23/02 (2006.01)
CPC (source: EP)
C22B 23/023 (2013.01)
Citation (examination)
HABASHI F. (EDITOR): "Handbook of Extractive Metallurgy, pp.759-763", 1997, WILEY
Designated contracting state (EPC)
FR GB GR
DOCDB simple family (publication)
EP 0643147 A2 19950315; EP 0643147 A3 19950503; EP 0643147 B1 20040519; AU 673758 B2 19961121; AU 7028694 A 19950309; BR 9403362 A 19950411; CO 4440447 A1 19970507; CU 22516 A3 19981230; ZA 946071 B 19950316
DOCDB simple family (application)
EP 94306256 A 19940824; AU 7028694 A 19940816; BR 9403362 A 19940829; CO 94037561 A 19940824; CU 1994101 A 19940830; ZA 946071 A 19940812