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1. (WO1987003276) APPARATUS FOR REDIFFUSION OF OXYGEN
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1987/003276 International Application No.: PCT/EP1986/000691
Publication Date: 04.06.1987 International Filing Date: 28.11.1986
IPC:
C02F 1/20 (2006.01) ,C23F 11/18 (2006.01)
C CHEMISTRY; METALLURGY
02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1
Treatment of water, waste water, or sewage
20
by degassing, i.e. liberation of dissolved gases
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
F
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES; INHIBITING CORROSION OF METALLIC MATERIAL; INHIBITING INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25247
11
Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
08
in other liquids
18
using inorganic inhibitors
Applicants:
GRÜNBECK WASSERAUFBEREITUNG GMBH [DE/DE]; Industriestrasse 1 D-8884 Höchstädt, DE (AllExceptUS)
KERN, Hans [DE/DE]; DE (UsOnly)
Inventors:
KERN, Hans; DE
Agent:
PRÜFER, Lutz, H.; Harthauser Str. 25d D-8000 München 90, DE
Priority Data:
P 35 42 329.329.11.1985DE
Title (EN) APPARATUS FOR REDIFFUSION OF OXYGEN
(FR) APPAREIL POUR LA REDIFFUSION D'OXYGENE
Abstract:
(EN) The above-described apparatus is designed to eliminate oxygen from water, in particular in closed circuits such as heating circuits, in order to prevent corrosion in the pipe-lines and boiler, as well as the formation of magnetic sludge. For this purpose, the apparatus is provided with a first region (2, 3) containing a medium having a great affinity for oxygen and a second region (8, 9, 10) separated from the latter by a liquid-tight but gas-permeable partition wall (4, 7). This second region is connected into the pipe-line through which the liquid to be treated is conveyed.
(FR) L'appareil ci-décrit doit servir, notamment dans les circuits fermés comme les circuits de chauffage, à éliminer l'oxygène de l'eau, afin d'empêcher ainsi la corrosion des canalisations, et de la chaudière et la formation de dépôts de magnétite. A cet effet, l'appareil possède une première région (2, 3) contenant un milieu présentant une grande affinité pour l'oxygène, et une seconde région (8, 9, 10) séparée de la première par une paroi (4, 7) étanche aux liquides mais perméable aux gaz. Cette seconde région est reliée à la canalisation véhiculant le liquide à traiter.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP0247169