MD919Z - Process for regeneration of electrolyte - Google Patents

Process for regeneration of electrolyte

Info

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
Application number
MDS20150001A
Other languages
Romanian (ro)
Russian (ru)
Inventor
Руслан ТИФОЙ
Original Assignee
Сп Завод Топаз Ао
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Сп Завод Топаз Ао filed Critical Сп Завод Топаз Ао
Priority to MDS20150001A priority Critical patent/MD919Z/en
Publication of MD919Y publication Critical patent/MD919Y/en
Publication of MD919Z publication Critical patent/MD919Z/en

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.
MDS20150001A 2015-01-13 2015-01-13 Process for regeneration of electrolyte MD919Z (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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