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Method and arrangement for removing gas from a liquid

A technology for removing and gas, applied in the direction of liquid degassing, separation methods, chemical instruments and methods, etc., to achieve the effect of effective separation

Inactive Publication Date: 2012-10-17
OUTOTEC OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems related to outgassing

Method used

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  • Method and arrangement for removing gas from a liquid
  • Method and arrangement for removing gas from a liquid
  • Method and arrangement for removing gas from a liquid

Examples

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example 1

[0024] The functional capabilities of the devices according to the invention were tested under laboratory-level conditions. The device for degassing according to the invention is described in the following example. The degassing device according to this example comprises a degassing tank described in this example as a cyclone and a tank surrounding said cyclone. In the degassing plant according to this example the water is treated, in this case air is fed into the feed pipe of the cyclone. The cyclone is arranged concentrically in the tank so that the solution can be fed tangentially through the lower part of the cyclone. In this way, the solution undergoes a spiral upward movement in order to remove air bubbles at the top of the cyclone, some of which are carried along with the stream into the intermediate space between the tank and the cyclone. The cyclone used in the plant according to this example has a diameter of 300 mm and a height of 700 mm; these dimensions vary as ...

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Abstract

The invention relates to a method and arrangement for removing gas,particularly inert gas bubbles,from process solutions. A container (1) containing process solution is provided with means both for feeding gas and solution into a container and for removing gas and solution from the container,said container (1) comprising a separate gas removal tank (2) set therein,into which tank the solution is fed tangentially at the lower part (3) of the gas removal tank,and in which gas removal tank the solution is conducted in a helical,upwardly oriented motion,as the gas bubbles (7) are removed from the top part (14) of the gas removal tank.

Description

technical field [0001] The invention relates to a method according to claim 1 for removing gas, in particular noble gas bubbles, from a process solution. Furthermore, the invention relates to a device for removing gases from a solution according to claim 15 . Background technique [0002] Typically, in hydrometallurgical processes, such as recycling processes, the solution contains gas. It is well known that air bubbles that are not expelled from the process can cause problems in many hydrometallurgical dissolution, cooling and precipitation processes. For example, problems arise when separating solids contained in solution in concentrators because air bubbles slow down the settling of the slurry and lift fine solid particles above the concentrator surface and further overflow them. For efficient operation of hydrometallurgical processes, eg in order to minimize recovery losses and environmental discharges, effective liquid-solid separation and especially clear overflow ar...

Claims

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Application Information

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IPC IPC(8): B01D19/00B04C3/00
CPCB01D19/0057
Inventor J·瓦尔诺T·里塔萨洛N·泰利
Owner OUTOTEC OYJ
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