CN1844474A - Method for control PH value of nickel powder electrolyte - Google Patents
Method for control PH value of nickel powder electrolyte Download PDFInfo
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- CN1844474A CN1844474A CN 200610065030 CN200610065030A CN1844474A CN 1844474 A CN1844474 A CN 1844474A CN 200610065030 CN200610065030 CN 200610065030 CN 200610065030 A CN200610065030 A CN 200610065030A CN 1844474 A CN1844474 A CN 1844474A
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- Prior art keywords
- ammonia
- value
- nickel powder
- control
- electrolyte
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Abstract
This invention relates to a method for controlling nickel powder electrolyte, which relates to the technology method of controlling the electrolyte acid-alkali degree in electrolytic operation. The character as follows: firstly putting the outlet ammonia gas of the liquid ammonia bottle in the cushion jar, then going into electrolyte through flux meter and non-return valve and metal film gas distributing device to control pH value. And the ammonia makes gas distribute uniformly by metal film gas distributing device, which reduces the waste from the ammonia' overflow.
Description
Technical field
A kind of method of controlling PH value of nickel powder electrolyte, relate to a kind of in electrolytic nickel powder is produced to electrowinning process in the processing method of electrolytic solution potential of hydrogen control.
Background technology
Adopt in the perchloro-electrolytic process production electrolytic nickel powder technology, carrying out along with electrolytic process, the pH value is reducing gradually in the electrolytic solution, for pH value in the stabilizing solution, usually all be to adopt the mode that in electrolytic solution, feeds liquefied ammonia, usually fed 3-4 liquefied ammonia in per 10 hours during operation, owing to be that manual operation feeding amount all is to add by rule of thumb, the feeding amount of liquefied ammonia is difficult to control.Liquefied ammonia feeds quantity not sufficient and causes the pH value low, and negative electrode hardens easily, yields poorly; It is excessive that liquefied ammonia feeds, it is too high to cause the pH value to rise again, make phenomenons such as electrolytic nickel powder Song Bigao, granularity chap, adopting direct feeding mode to feed liquefied ammonia simultaneously can make ammoniacal liquor produce a large amount of bubbles in solution and volatilize in air, a large amount of ammonias overflows outside the groove, cause on-the-spot labor condition to worsen, the consumption of liquefied ammonia increases.
Summary of the invention
The present invention seeks to deficiency at above-mentioned prior art existence, provide a kind of and can effectively control the add-on of ammonia, the pH value of stabilizing solution, reduce liquefied ammonia consumption in the electrolytic nickel powder production process, make electrolytic nickel powder produce the method for balanced, stable more control PH value of nickel powder electrolyte.
The objective of the invention is to realize by following scheme
A kind of method of controlling PH value of nickel powder electrolyte, adopting liquefied ammonia is the pH value of conditioning agent control electrolytic solution, it is characterized in that it being after at first the outlet ammonia of liquefied ammonia bottle being fed surge tank,, by the metallic membrane gas pipe that has micropore ammonia is fed electrolytic solution again and control the pH value through reverse checkvalve by under meter.
Method of the present invention is characterized in that its structure of metallic membrane gas pipe that adopts is that an end has the logical ammonia cavity of inlet mouth, hollow and the metallic membrane housing that the shell band has metal micro-holes.
Method of the present invention adds the ammonia flow measuring apparatus in the outlet of liquefied ammonia bottle, and effectively hydraulic control system ammonia bottle exports the flow of ammonia, and the inlet of control electrolytic solution ammonia reaches the purpose of regulating electrolyte ph.And ammonia makes gas distribution even by the metallic membrane gas pipe, eliminates bubble and produces in a large number, has reduced the waste of overflowing generation of ammonia, has improved the execute-in-place environment.Metallic membrane gas pipe of the present invention can adopt the metal membrane filter device of purchasing as the metallic membrane gas pipe, be simple and easy to, fitting operation is convenient.
Adopt method of the present invention, stable control in the pH value of electrolytic solution, the electrolytic solution ingredient stability has guaranteed quality product, result of use is better.
Description of drawings
The processing unit schema of Fig. 1 method of the present invention.
Fig. 2 be the metallic membrane gas pipe structural representation that uses of method of the present invention,
Embodiment
A kind of method of controlling PH value of nickel powder electrolyte, adopting liquefied ammonia is the pH value of conditioning agent control electrolytic solution, at first behind the outlet ammonia feeding surge tank with the liquefied ammonia bottle, by under meter through reverse checkvalve again by the metallic membrane gas pipe again with enter electrolytic solution and control the pH value.Its structure of metallic membrane gas pipe that adopts is that an end has the logical ammonia cavity 2 of inlet mouth 1, hollow and the metallic membrane housing that shell band 3 has metal micro-holes 4.
Specifically use and operate as follows: at first reverse checkvalve to the flexible pipe between the metal membrane filter device is tied, forbid that gas passes through; After connecting everywhere pipeline again, hunted leak in junctions such as each pipeline, valve with bottled nitrogen; The concrete operations of hunting leak are as follows: the nitrogen reducing valve is installed in the nitrogengas cylinder exit, opens the nitrogen cylinder valve, the slow nitrogen reducing valve of opening, make pressure-controlling at 0.2-0.3Mpa, each junction is smeared, after finding to leak gas with having the foamy suds, carry out mark, normal until handling; More than work finish after, reverse checkvalve to the flexible pipe between the metallic membrane gas pipe is unclamped.The liquefied ammonia bottle is uprightly put, adjusted the liquefied ammonia cylinder valve, make ammonia flow be controlled at certain numerical value,, check in the liquefied ammonia bottle whether liquefied ammonia is arranged, and rap spinner-type flowmeter edge and get final product if under meter does not have indication; If there is ammonia to pass through, at this moment should diligently observe electrolytic solution reaction and colour-change situation, in time detect electrolyte ph with pH value test set, make the pH value reach the manufacturing condition requirement after, the stable ammonia airshed gets final product.5 is nut among the figure.
Claims (2)
1. method of controlling PH value of nickel powder electrolyte, adopting liquefied ammonia is the pH value of conditioning agent control electrolytic solution, it is characterized in that it being after at first the outlet ammonia of liquefied ammonia bottle being fed surge tank,, by the metallic membrane gas pipe that has micropore ammonia is fed electrolytic solution again and control the pH value through reverse checkvalve by under meter.
2. method according to claim 1 is characterized in that its structure of metallic membrane gas pipe that adopts is that an end has the logical ammonia cavity of inlet mouth, hollow and the metallic membrane housing that shell has metal micro-holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100650306A CN100510195C (en) | 2006-03-17 | 2006-03-17 | Method for control PH value of nickel powder electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100650306A CN100510195C (en) | 2006-03-17 | 2006-03-17 | Method for control PH value of nickel powder electrolyte |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1844474A true CN1844474A (en) | 2006-10-11 |
| CN100510195C CN100510195C (en) | 2009-07-08 |
Family
ID=37063443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100650306A Active CN100510195C (en) | 2006-03-17 | 2006-03-17 | Method for control PH value of nickel powder electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100510195C (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69420314T2 (en) * | 1993-05-03 | 2000-02-24 | Ecochem Ag Triesen | Process for the electrical extraction of heavy metals |
| CN1032703C (en) * | 1994-06-29 | 1996-09-04 | 北京有色冶金设计研究总院 | Method for removal of copper from electrolytic nickel anodic liquid |
| BR0013318A (en) * | 1999-08-12 | 2002-07-16 | Ebara Corp | Effluent gas treatment method and apparatus |
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2006
- 2006-03-17 CN CNB2006100650306A patent/CN100510195C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN100510195C (en) | 2009-07-08 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JINCHUAN GROUP CO., LTD. Free format text: FORMER NAME: JINCHUAN GROUP CORP., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 737103 Jinchuan Road, Gansu, China, No. 98, No. Patentee after: Jinchuan Group Co., Ltd. Address before: 737103 Jinchuan Road, Gansu, China, No. 98, No. Patentee before: Jinchuan Group Corp., Ltd. |