Global Patent Index - EP 0152201 A2

EP 0152201 A2 19850821 - Dissolving gas in liquid.

Title (en)

Dissolving gas in liquid.

Title (de)

Lösen von Gas in einer Flüssigkeit.

Title (fr)

Dissolution d'un gaz dans un liquide.

Publication

EP 0152201 A2 19850821 (EN)

Application

EP 85300488 A 19850124

Priority

GB 8401781 A 19840124

Abstract (en)

In order to dissolve a gas such as oxygen in a liquid, typically aqueous, a stream of liquid is taken from tank 2 by a pump 10 and pressurised thereby. Oxygen is introduced into the stream via a conduit 18 upstream of a venturi 20. Turbulence created as the stream passes through the venturi 20 helps to disperse the oxygen as fine bubbles in the stream. The dispersion is then conducted to a sparge pipe 14 and introduced into the main volume 4 of liquid in the tank 2. The bubbles are thereby sheared into very small bubbles that readily dissolve in or are consumed by the volume 4 of liquid. Some of the gas in the dispersion is separated therefrom at a relatively downstream position and drawn along a pipe 26 back into the stream at a relatively upstream position by the action of the stream passing through the venturi 20. A valve 28 is operable to regulate the rate at which gas is so recycled.

IPC 1-7

B01F 3/04

IPC 8 full level

B01F 1/00 (2006.01); B01F 3/04 (2006.01); B01F 3/08 (2006.01); B01F 5/02 (2006.01); B01F 5/04 (2006.01); B01F 5/10 (2006.01)

CPC (source: EP KR US)

B01F 23/20 (2022.01 - KR); B01F 23/237612 (2022.01 - EP KR US); B01F 23/454 (2022.01 - EP); B01F 25/21 (2022.01 - EP); B01F 25/3122 (2022.01 - EP); B01F 25/53 (2022.01 - EP); B01F 23/23 (2022.01 - EP); B01F 23/2376 (2022.01 - EP)

Designated contracting state (EPC)

BE DE FR IT NL

DOCDB simple family (publication)

EP 0152201 A2 19850821; EP 0152201 A3 19870805; EP 0152201 B1 19910904; AU 3800185 A 19850801; AU 578063 B2 19881013; CA 1257195 A 19890711; DE 3583950 D1 19911010; GB 2153245 A 19850821; GB 2153245 B 19870318; GB 8401781 D0 19840229; GB 8501799 D0 19850227; IN 163926 B 19881210; JP H0547252 B2 19930716; JP S60222136 A 19851106; KR 850005286 A 19850824; KR 920000537 B1 19920116; ZA 85364 B 19860528

DOCDB simple family (application)

EP 85300488 A 19850124; AU 3800185 A 19850123; CA 472616 A 19850123; DE 3583950 T 19850124; GB 8401781 A 19840124; GB 8501799 A 19850124; IN 41MA1985 A 19850118; JP 1070285 A 19850123; KR 850000394 A 19850123; ZA 85364 A 19850116