Global Patent Index - EP 0343012 B2

EP 0343012 B2 2002-09-18 - Magnesium-calcium alloys for debismuthizing lead

Title (en)

Magnesium-calcium alloys for debismuthizing lead

Title (de)

Magnesium-Calcium-Legierungen zur Entwismutierung von Blei

Title (fr)

Alliages de magnésium-calcium pour la débismuthation du plomb

Publication

EP 0343012 B2 (EN)

Application

EP 89305122 A

Priority

CA 567408 A

Abstract (en)

[origin: EP0343012A2] A novel alloy for use in lead refining is disclosed which comprises magnesium and calcium. The preferred ratio on a weight basis of magnesium to calcium is between 1.2 and 5.2. A method of adding this alloy to a lead bath is described which brings calcium into solution with the lead and provides a high recovery ratio.

IPC 1-7 (main, further and additional classification)

C22B 13/08

IPC 8 full level (invention and additional information)

C22B 13/02 (2006.01); C22B 9/10 (2006.01); C22B 13/06 (2006.01); C22C 23/00 (2006.01)

CPC (invention and additional information)

C22B 13/06 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FR GB GR IT SE

DOCDB simple family

EP 0343012 A2 19891123; EP 0343012 A3 19910109; EP 0343012 B1 19950913; EP 0343012 B2 20020918; AT 127859 T 19950915; AU 2451588 A 19891123; AU 620822 B2 19920227; DE 68924194 D1 19951019; DE 68924194 T2 19961128; DE 68924194 T3 20030130; ES 2076961 T3 19951116; GR 3018160 T3 19960229; JP 2714984 B2 19980216; JP H0270038 A 19900308; YU 102489 A 19911031