MD919Z - Process for regeneration of electrolyte - Google Patents
Process for regeneration of electrolyteInfo
- Publication number
- MD919Z MD919Z MDS20150001A MDS20150001A MD919Z MD 919 Z MD919 Z MD 919Z MD S20150001 A MDS20150001 A MD S20150001A MD S20150001 A MDS20150001 A MD S20150001A MD 919 Z MD919 Z MD 919Z
- Authority
- MD
- Moldova
- Prior art keywords
- regeneration
- electrolyte
- nitrate
- direct current
- sodium chloride
- Prior art date
Links
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention relates to a process for regeneration of electrolyte based on aqueous solutions of sodium chloride and nitrate with a content of hexavalent chromium, and can be used in the process of electrochemical machining of gas-turbine engine blades.The process for regeneration of electrolyte based on aqueous solutions of sodium chloride and nitrate with a content of Cr+6 includes applying a direct current of normal polarity with a density of 0.4…0.5 A dm2 for 5…10 min and subsequently applying the direct current of reverse polarity with the same density and duration, after which by centrifugation is removed the sludge from the electrolyte.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDS20150001A MD919Z (en) | 2015-01-13 | 2015-01-13 | Process for regeneration of electrolyte |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDS20150001A MD919Z (en) | 2015-01-13 | 2015-01-13 | Process for regeneration of electrolyte |
Publications (2)
Publication Number | Publication Date |
---|---|
MD919Y MD919Y (en) | 2015-06-30 |
MD919Z true MD919Z (en) | 2016-01-31 |
Family
ID=53487817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MDS20150001A MD919Z (en) | 2015-01-13 | 2015-01-13 | Process for regeneration of electrolyte |
Country Status (1)
Country | Link |
---|---|
MD (1) | MD919Z (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2504G2 (en) * | 2002-11-26 | 2005-01-31 | Государственный Университет Молд0 | Process for chromed electrolyte generation by automatic control |
RU2422374C2 (en) * | 2005-11-30 | 2011-06-27 | Индустрие Де Нора С.П.А. | Electrochemical treatment of solutions containing hexavalent chromium |
EP2386377A1 (en) * | 2010-05-12 | 2011-11-16 | Industria de Turbo Propulsores S.A. | Method of getting reusable electrolyte from electrochemical machining of parts made up of nickel, iron and chromium. |
RU2471594C1 (en) * | 2011-07-07 | 2013-01-10 | Общество С Ограниченной Ответственностью "Есм" | Method of automatic control over system of preparation and recovery of electrolyte and device to this end |
-
2015
- 2015-01-13 MD MDS20150001A patent/MD919Z/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2504G2 (en) * | 2002-11-26 | 2005-01-31 | Государственный Университет Молд0 | Process for chromed electrolyte generation by automatic control |
RU2422374C2 (en) * | 2005-11-30 | 2011-06-27 | Индустрие Де Нора С.П.А. | Electrochemical treatment of solutions containing hexavalent chromium |
EP2386377A1 (en) * | 2010-05-12 | 2011-11-16 | Industria de Turbo Propulsores S.A. | Method of getting reusable electrolyte from electrochemical machining of parts made up of nickel, iron and chromium. |
RU2471594C1 (en) * | 2011-07-07 | 2013-01-10 | Общество С Ограниченной Ответственностью "Есм" | Method of automatic control over system of preparation and recovery of electrolyte and device to this end |
Non-Patent Citations (3)
Title |
---|
Еланёва С.И. Физикохимические методы снижения агрессивности отработанных электролитов путем перевода Cr (VI) в Cr (III). Известия Пензенского государственного педагогического университета им. В.Г. Белинского, nr. 10/2008 * |
Седыкин Ф.В., Дмитриев Л.Б., Иванов Н.И. и др. Оборудование для размерной электрохимической обработки деталей машин. Москва, Машиностроение, 1980, p. 161-162 * |
Урецкий Е.А. Ресурсосберегающие технологии в водном хозяйстве промышленных предприятий. Брест, 2007 * |
Also Published As
Publication number | Publication date |
---|---|
MD919Y (en) | 2015-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG9Y | Short term patent issued | ||
KA4Y | Short-term patent lapsed due to non-payment of fees (with right of restoration) | ||
MM4Y | Short-term patent definitely lapsed due to non-payment of fees |