EP 0031552 B1 19841121 - DESULPHURISING COMPOSITION AND PROCESS FOR ITS PRODUCTION

Title (en)

DESULPHURISING COMPOSITION AND PROCESS FOR ITS PRODUCTION

Publication

EP 0031552 B1 19841121 (DE)

Application

EP 80108013 A 19801218

Priority

DE 2952761 A 19791229
DE 3008950 A 19800308

Abstract (en)

[origin: ES8200147A1] The invention relates to agents for the desulfurization of metal melts, especially of steel and crude iron melts, based on mixtures of CaC2/CaO crystals produced in the fused mass. A portion of the CaO in the crystal mixture is hydrated to form Ca(OH)2. A process for the manufacture of these agents is also described.

IPC 1-7

C21C 7/064; C21C 1/02

IPC 8 full level

C21C 1/02 (2006.01); C21C 7/064 (2006.01); C21C 7/076 (2006.01)

CPC (source: EP US)

C21C 1/025 (2013.01 - EP US); C21C 7/0645 (2013.01 - EP US)

Citation (examination)

DE 2252795 A1 19740522 - SUEDDEUTSCHE KALKSTICKSTOFF [DE]
EP 0031534 A1 19810708 - HOECHST AG [DE], et al
EP 0019087 A1 19801126 - HOECHST AG [DE]

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0031552 A1 19810708; EP 0031552 B1 19841121; AU 532988 B2 19831020; AU 6585380 A 19810709; BR 8008513 A 19810721; CA 1154596 A 19831004; DD 155528 A5 19820616; DE 3069681 D1 19850103; DK 151570 B 19871214; DK 151570 C 19880606; DK 550980 A 19810630; ES 497686 A0 19811101; ES 8200147 A1 19811101; MX 154953 A 19880114; NO 153499 B 19851223; NO 153499 C 19860402; NO 803923 L 19810630; PL 125943 B1 19830630; PL 228753 A1 19810904; US 4358312 A 19821109

DOCDB simple family (application)

EP 80108013 A 19801218; AU 6585380 A 19801224; BR 8008513 A 19801223; CA 367572 A 19801224; DD 22670080 A 19801229; DE 3069681 T 19801218; DK 550980 A 19801223; ES 497686 A 19801212; MX 18547681 A 19810105; NO 803923 A 19801223; PL 22875380 A 19801223; US 21873180 A 19801222