EP 0582970 B1 19980408 - Additive for desulfurization of liquid pig and cast iron and process for desulfurizing
Title (en)
Additive for desulfurization of liquid pig and cast iron and process for desulfurizing
Title (de)
Entschwefelungsmittel für Roheisen- und Gusseisenschmelzen sowie Verfahren zur Entschwefelung
Title (fr)
Produit pour désulfuration des fontes et des aciers liquides et procédé de désulfuration
Publication
Application
Priority
DE 4226833 A 19920813
Abstract (en)
[origin: EP0582970A1] An additive for desulphurisation of liquid pig and cast iron on the basis of fine-grained magnesium and at least 3% by weight of a metallurgically active silicate mineral in a chain-type, sheet-type or three-dimensional structure and/or one of the minerals syenite and/or rhyolite alone or as a mixture. The additive for desulphurisation can contain as further components calcium carbide and/or calcium oxide. The magnesium can be enveloped by these components in the manner of a shell. Preferably, the additive is conveyed as such or by the co-injection method pneumatically via a lance into the molten iron.
IPC 1-7
IPC 8 full level
C21C 1/02 (2006.01)
CPC (source: EP US)
C21C 1/025 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0582970 A1 19940216; EP 0582970 B1 19980408; AT E164887 T1 19980415; DE 4226833 A1 19940217; DE 59308374 D1 19980514; US 5336293 A 19940809
DOCDB simple family (application)
EP 93112545 A 19930805; AT 93112545 T 19930805; DE 4226833 A 19920813; DE 59308374 T 19930805; US 10575193 A 19930812