EP 0225273 B1 19900328 - CONTINUOUS PICKLUNG METHOD AND APPARATUS
Title (en)
CONTINUOUS PICKLUNG METHOD AND APPARATUS
Publication
Application
Priority
- JP 27343185 A 19851206
- JP 27506785 A 19851209
- JP 27506885 A 19851209
Abstract (en)
[origin: EP0225273A1] The present invention is directed to a continuous pickling method for continuously pickling a material to be pickled, the method being characterised by heating the material up to a temperature higher than a boiling point of an acid liquid under atmospheric pressure, and then pickle the material; a continuous pickling method characterized in that in the pickling process, the acid liquid is jetted against the material, without immersing the material into the acid liquid; and a continuous pickling pretreating apparatus, used in the above mentioned continuous pickling methods, which comprises a tank for receiving herein hot water having a temperature higher than its boiling point under atmospheric pressure, a heating device for heating the hot water, and seal rolls disposed at an outlet and an inlet of the tank and the material.
IPC 1-7
IPC 8 full level
CPC (source: EP KR)
C23G 1/00 (2013.01 - KR); C23G 1/02 (2013.01 - EP); C23G 3/023 (2013.01 - EP); C23G 3/028 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0225273 A1 19870610; EP 0225273 B1 19900328; AU 594988 B2 19900322; AU 6550186 A 19870611; BR 8605681 A 19870818; DE 3669898 D1 19900503; KR 870006236 A 19870710
DOCDB simple family (application)
EP 86730180 A 19861103; AU 6550186 A 19861118; BR 8605681 A 19861117; DE 3669898 T 19861103; KR 860010118 A 19861128