CN1896323A - Passivation-free and non-oxygen washing-plate and drying plate manganese electrolyzation - Google Patents
Passivation-free and non-oxygen washing-plate and drying plate manganese electrolyzation Download PDFInfo
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- CN1896323A CN1896323A CN 200610031814 CN200610031814A CN1896323A CN 1896323 A CN1896323 A CN 1896323A CN 200610031814 CN200610031814 CN 200610031814 CN 200610031814 A CN200610031814 A CN 200610031814A CN 1896323 A CN1896323 A CN 1896323A
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Abstract
A passivation-free electrolytic manganese technology relates to anaerobic plate washing and baking. The electrolytic manganese board is directly put into the hot water tank filled with nitrogen and has the impurity on the surface washed off, then it is cleaned with O2-free tap water and dried with heated nitrogen in the drying oven. This invention is characterized by the absence of passivation process in traditional electrolytic manganese production facilitating the emission without chromium and the protection of inert gases during baking that will increase the baking temperature, shorten the baking time, facilitate environment protection and promote the economical and social benefits.
Description
Technical field
The present invention relates to remove from a kind of electrolytic manganese production the electrolytic manganese process that passivation procedure realizes the Chrome-free discharge of wastewater.
Background technology
China is largest production state, country of consumption and the export State of electrolytic manganese, and annual production has reached 800,000 tons, accounts for 3/4 of Gross World Product.The manganese resource of Hunan, Guizhou and Chongqing three provinces and cities' intersections is abundant, accounts for China's manganese resource 1/3.Continuous development along with world economy constantly increases the electrolytic manganese demand, and at home and abroad supply falls short of demand for product.Because surface oxidation easily takes place in bulk metal manganese, in order to increase its chemical stability, must carry out surface passivation immediately after producing.Since the sixties in last century because chromating is effective, technology is simple, with low cost, easy to use and generally used by manufacturing enterprise.But owing to contain a large amount of unmanageable national pollutant hexavalent chromiums in the passivating solution, physical environment has been caused havoc, stopping production is often imposed a fine or orders within a certain time because of water pollution problems in many enterprises by environmental administration.
Summary of the invention
The purpose of this invention is to provide a kind of passivation procedure of removing from the electrolytic manganese production technology, and can make electrolytic manganese not oxidized, thereby realize the Chrome-free discharging, save the electrolytic manganese process of cost.
The present invention is an impurity of the electrolytic manganese board that groove directly being put into the hot water tank flush away surface of pouring nitrogen, washes the plate time to be controlled in 1 minute; Rinse well with the tap water of deoxidation then, put into drying baker, dry up with heated nitrogen and get final product, the drying-plate time is 5-8 minute.
The pressure of nitrogen flushing is 1.5-2 normal atmosphere; The water temperature of hot water tank is 40-50 ℃; Temperature in the drying baker is 70-80 ℃.
The present invention has removed the passivation procedure in traditional electrolytic manganese production technique from, realizes the Chrome-free discharging; Utilize the protection of inert gas drying-plate, can improve the drying-plate temperature, shorten the drying-plate time, realize water saving, energy-saving and environmental protection, significantly improve electrolytic manganese economic benefit of enterprises and social benefit.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention is an impurity of the electrolytic manganese board that groove directly being put into the hot water tank flush away surface of pouring nitrogen storage device nitrogen, and the water temperature of hot water tank is 40-50 ℃, washes the plate time to be controlled in 1 minute.Be used in the deaerator tap water of deoxidation then and rinse well, put into drying baker, use to dry up by the electrical heater heated nitrogen to get final product, the pressure of nitrogen flushing is 1.5-2 normal atmosphere, and the temperature in the drying baker is 70-80 ℃, and the drying-plate time is 5-8 minute.Nitrogen in the drying baker can be recycled in the nitrogen storage device to be reused.
Claims (2)
1, a kind of passivation-free, non-oxygen washing-plate drying plate manganese electrolyzation is characterized in that: it is an impurity of the electrolytic manganese board that groove directly being put into the hot water tank flush away surface of pouring nitrogen, washes the plate time to be controlled in 1 minute; Rinse well with the tap water of deoxidation then, put into drying baker, dry up with heated nitrogen and get final product, the drying-plate time is 5-8 minute.
2, passivation-free according to claim 1, non-oxygen washing-plate drying plate manganese electrolyzation is characterized in that: the pressure of nitrogen flushing is 1.5-2 normal atmosphere; The water temperature of hot water tank is 40-50 ℃; Temperature in the drying baker is 70-80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100318147A CN100554525C (en) | 2006-06-07 | 2006-06-07 | A kind of passivation-free, non-oxygen washing-plate drying plate manganese electrolyzation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100318147A CN100554525C (en) | 2006-06-07 | 2006-06-07 | A kind of passivation-free, non-oxygen washing-plate drying plate manganese electrolyzation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1896323A true CN1896323A (en) | 2007-01-17 |
| CN100554525C CN100554525C (en) | 2009-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100318147A Expired - Fee Related CN100554525C (en) | 2006-06-07 | 2006-06-07 | A kind of passivation-free, non-oxygen washing-plate drying plate manganese electrolyzation |
Country Status (1)
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| CN (1) | CN100554525C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694953A (en) * | 2015-04-07 | 2015-06-10 | 盐城市电子设备厂有限公司 | Electrolytic manganese laser passivation method |
| CN106929864A (en) * | 2017-04-06 | 2017-07-07 | 宁夏天元锰业有限公司 | A kind of method for cleaning of electrolytic manganese with manganese minus plate |
| CN112195484A (en) * | 2020-09-27 | 2021-01-08 | 遵义天磁锰业集团有限公司 | Passivation-free process for electrolytic manganese metal production and product post-treatment method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628089B (en) * | 2013-10-30 | 2016-07-06 | 中信锦州金属股份有限公司 | A kind of cleaning method of electrolytic manganese polar plate |
-
2006
- 2006-06-07 CN CNB2006100318147A patent/CN100554525C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694953A (en) * | 2015-04-07 | 2015-06-10 | 盐城市电子设备厂有限公司 | Electrolytic manganese laser passivation method |
| CN106929864A (en) * | 2017-04-06 | 2017-07-07 | 宁夏天元锰业有限公司 | A kind of method for cleaning of electrolytic manganese with manganese minus plate |
| CN112195484A (en) * | 2020-09-27 | 2021-01-08 | 遵义天磁锰业集团有限公司 | Passivation-free process for electrolytic manganese metal production and product post-treatment method |
| CN112195484B (en) * | 2020-09-27 | 2024-01-12 | 遵义天磁锰业集团有限公司 | Passivation-free process for electrolytic manganese metal production and product post-treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100554525C (en) | 2009-10-28 |
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| Date | Code | Title | Description |
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| 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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xiangxi metallurgical Alloy Technology Co., Ltd. Assignor: Duan Yougou Contract fulfillment period: 2009.11.17 to 2015.11.17 contract change Contract record no.: 2009430000222 Denomination of invention: Passivation-free and non-oxygen washing-plate and drying plate manganese electrolyzation Granted publication date: 20091028 License type: Exclusive license Record date: 2009.12.9 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.11.17 TO 2015.11.17; CHANGE OF CONTRACT Name of requester: XIANGXI AUTONOMOUS PREFECTURE FENGDA ALLOY TECHNOL Effective date: 20091209 |
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| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Xiangxi metallurgical Alloy Technology Co., Ltd. Assignor: Duan Yougou Contract record no.: 2009430000222 Date of cancellation: 20100525 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20130607 |