EP 0161995 B1 19910612 - PROCESS FOR TREATING FOUNDRY SANDS IN ORDER TO RECLAIM CHROMITE, AND EQUIPMENT THEREFOR
Title (en)
PROCESS FOR TREATING FOUNDRY SANDS IN ORDER TO RECLAIM CHROMITE, AND EQUIPMENT THEREFOR
Publication
Application
Priority
FR 8404696 A 19840321
Abstract (en)
[origin: US4671867A] The subject matter of the invention mainly relates to the technical areas of foundry, manufacture of parts by casting metal in moulds. The process consists in that after moulding the parts and stripping them from the moulds which were broken, during a first cycle the mixture resulting from the knock-out is recovered. This mixture being stored. This mixture is directed from the storage place to an intermediate container; then the mixture from the intermediate container is fed up to a sieve grading separator unit allowing to separate the grains or particles in several different grading batches; each one of these batches is directed to a separating table designed for separating chromite from silica; the chromite on the one hand and the silica on the other hand are recovered in containers. This invention mainly applies to the recovery of components of different densities, especially chromite and silica.
IPC 1-7
IPC 8 full level
B07B 9/02 (2006.01); B03B 4/02 (2006.01); B22C 5/18 (2006.01)
CPC (source: EP KR US)
B03B 4/02 (2013.01 - EP US); B22C 5/00 (2013.01 - KR); B22C 5/18 (2013.01 - EP US); Y10S 241/10 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0161995 A1 19851121; EP 0161995 B1 19910612; AT E64332 T1 19910615; DE 161995 T1 19870319; DE 3583184 D1 19910718; ES 541470 A0 19880216; ES 557767 A0 19881001; ES 8801592 A1 19880216; ES 8900269 A1 19881001; FR 2561554 A1 19850927; FR 2561554 B1 19860814; IL 74588 A0 19850630; IL 74588 A 19871020; KR 850007011 A 19851030; RO 93730 A 19880630; RO 93730 B 19880702; US 4671867 A 19870609; YU 45085 A 19881031
DOCDB simple family (application)
EP 85420051 A 19850319; AT 85420051 T 19850319; DE 3583184 T 19850319; DE 85420051 T 19850319; ES 541470 A 19850321; ES 557767 A 19871008; FR 8404696 A 19840321; IL 7458885 A 19850313; KR 850001813 A 19850320; RO 11805685 A 19850319; US 71449685 A 19850321; YU 45085 A 19850320