Bubble collector guide and use thereof

Patent metadata

Field	Value
Publication number	US-9976222-B2
Application number	US-201314403653-A
Country	US
Kind code	B2
Filing date	Jun 6, 2013
Priority date	Jun 7, 2012
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

The invention concerns a bubble collector guide for use in an electrolysis process, which comprises a plurality of guide members arranged at a distance from each other, the guide members comprising a lower side. The guide members can be arranged horizontally on the vertical surface of an electrode so that the lower side of the guide member forms a downwards facing surface that is substantially orthogonal to the vertical surface of the electrode, so as to collect bubbles of gas generated at the electrode.

First claim

The invention claimed is:

1. A bubble collector guide, where
the bubble collector guide comprises a plurality of guide members arranged at a distance from each other horizontally along the length of a rectangular vertical surface of a plate-like electrode, the vertical surface orthogonal to opposed edge surfaces of the electrode, each of the guide members comprising a lower side and each having a proximal end and a distal end, and wherein the guide members are arranged so that the lower side of the guide member forms a downwards facing surface that is orthogonal to the vertical surface of the electrode, so as to collect bubbles of gas generated at the electrode, and wherein the bubble collector guide includes a first support member arranged along a first of the opposed edge surfaces and which connects the proximal end of a first one of said plurality of guide members with the proximal end of a second one of the plurality of guide members, and a second support member arranged along a second of the opposed edge surfaces and which connects the distal end of said first one of said plurality of guide members with the distal end of the second one of said plurality of guide members.

2. The bubble collector guide according to claim 1 , where the guide member extends at least half the width of the vertical surface of the electrode.

3. The bubble collector guide according to claim 1 , where the guide member is sealably attachable to the vertical surface of the electrode.

4. The bubble collector guide according to claim 1 , where the guide members are arranged at an equal distance from each other.

5. The bubble collector guide according to claim 1 , where the guide members are arranged at non-equal distances from each other.

6. The bubble collector guide according to claim 1 , where the guide members are of the same size and depth.

7. The bubble collector guide according to claim 1 , where the guide members are identical in at least one of size and depth.

8. The bubble collector guide according to claim 1 , where the downwards facing surface formed by the lower side of the guide member has a linear shape.

9. The bubble collector guide according to claim 1 , where the downwards facing surface formed by the lower side of the guide member has a sawedged shape.

10. The bubble collector guide according to claim 1 , where the downwards facing surface formed by the lower side of the guide member has a cogged shape.

11. The bubble collector guide according to claim 1 , where the guide member comprises at least one of an orifice and an aperture.

12. The bubble collector guide according to claim 1 , where the support member extends farther away from the vertical side of the electrode than the guide members so as to prevent other parts of the electrolysis system from touching the guide members.

13. The bubble collector guide according to claim 1 , comprising one or more spacers for keeping electrodes at a correct distance from each other.

14. The bubble collector guide according to claim 1 capable of use in an electrowinning process.

15. The bubble collector guide of claim 14 in combination with at least one of an acid mist suppressant chemical, a diaphragm bag or a hood.

16. An electrowinning process comprising:
using a bubble collector guide to reduce acid mist in the electrowinning process, the bubble collector guide comprising a plurality of guide members arranged at a distance from each other horizontally along the length of a rectangular vertical surface of a plate-like electrode, the vertical surface orthogonal to opposed edge surfaces of the electrode, each of the guide members having a proximal end and a distal end, and wherein the bubble collector guide includes a first support member arranged along a first of the opposed edge surfaces, and which connects the proximal end of a first one of said plurality of guide members with the proximal end of a second one of the plurality of guide members and a second support member arranged along a second of the opposed edge surfaces, which connects the distal end of the first one of said plurality of guide members with the distal end of the second one of the plurality of guide members; and
further reducing acid mist in the electrowinning process beyond that reduced by the bubble collector guide.

17. The process of claim 16 where said step of further reducing acid mist comprises using at least one of an acid mist suppressor chemical, a diaphragm bag, and a hood.

18. A bubble collector guide comprising first and second elongate vertical support members generally parallel to each other and a plurality of spaced apart horizontal guide members arranged at a distance from each other along the respective lengths of the elongate vertical support members, the guide members comprising a lower side and each having a proximal end and a distal end, the first support member connecting the proximal end of a first one of said plurality of guide members with the proximal end of a second one of the plurality of guide members, and a second support member arranged along a second of the opposed edge surfaces and which connects the distal end of said first one of said plurality of guide members with the distal end of the second one of said plurality of guide members, the first and second elongate support members together with the first one and the second one of the plurality of guide members defining a space capable of selectively receiving a plate-like electrode having a rectangular vertical surface so that the lower side of the guide member forms a downwards facing surface orthogonal to the vertical surface of the electrode and which collects bubbles of gas generated at the electrode.

Assignees

• Outotec Finland Oy

Inventors

• Nieminen Ville
• Virtanen Henri K
• Aaltonen Heikki

Classifications

• C25C7/00

  Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells (for the production of aluminium C25C3/06 - C25C3/22) · CPC title

• C25D21/04

  Removal of gases or vapours {; Gas or pressure control} · CPC title

• C25B9/00

  Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features · CPC title

• C25C7/02 Primary

  Electrodes (consumable anodes for the refining the metals C25C1/00 - C25C5/00); Connections thereof · CPC title

• C25B15/00

  Operating or servicing cells · CPC title