EP 0029243 B1 19850522 - METHOD FOR CLEANING AND SANITIZING THE INTERIOR OF PIPELINES
Title (en)
METHOD FOR CLEANING AND SANITIZING THE INTERIOR OF PIPELINES
Publication
Application
Priority
- US 9610679 A 19791120
- US 10678479 A 19791226
- US 12253680 A 19800219
Abstract (en)
[origin: EP0029243A1] Pipeline interiors are treated by passing through said pipeline an aqueous gelled pig containing an aqueous, cross-linked gelled galactomannan gum, or derivative thereof. A bactericide may optionally be included in the gelled pig to sanitize the interior of the pipe. The interior surface of a pipeline may optionally be dried by sequentially passing through the pipeline an aqueous cross-linked gelled pig, a fluid mobility buffer comprising a non-cross-linked gelled alkanol of from one to three carbon atoms, and a dessicating amount of a liquid alkanol from one to three carbon atoms.
IPC 1-7
IPC 8 full level
B08B 9/04 (2006.01)
CPC (source: EP)
B08B 9/0555 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0029243 A1 19810527; EP 0029243 B1 19850522; CA 1145902 A 19830510; DE 3070680 D1 19850627; NO 157744 B 19880201; NO 157744 C 19880511; NO 803492 L 19810521
DOCDB simple family (application)
EP 80107123 A 19801117; CA 362839 A 19801021; DE 3070680 T 19801117; NO 803492 A 19801119