MD3232G2 - Process for Berlin blue release from waste formed as a result of wine stock demetallization with potassium ferrocyanide(II) - Google Patents

Process for Berlin blue release from waste formed as a result of wine stock demetallization with potassium ferrocyanide(II) Download PDF

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Publication number
MD3232G2
MD3232G2 MDA20060118A MD20060118A MD3232G2 MD 3232 G2 MD3232 G2 MD 3232G2 MD A20060118 A MDA20060118 A MD A20060118A MD 20060118 A MD20060118 A MD 20060118A MD 3232 G2 MD3232 G2 MD 3232G2
Authority
MD
Moldova
Prior art keywords
berlin blue
waste
result
demetallization
potassium ferrocyanide
Prior art date
Application number
MDA20060118A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD3232F1 (en
Inventor
Виктор КОВАЛЁВ
Ольга КОВАЛЁВА
Original Assignee
Государственный Университет Молд0
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 Государственный Университет Молд0 filed Critical Государственный Университет Молд0
Priority to MDA20060118A priority Critical patent/MD3232G2/en
Publication of MD3232F1 publication Critical patent/MD3232F1/en
Publication of MD3232G2 publication Critical patent/MD3232G2/en

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  • Removal Of Specific Substances (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The invention relates to a process for Berlin blue release from waste formed as a result of wine stock demetallization with potassium ferrocyanide(II) and may be used in the wine industry, in the production of juices and in the tartaric acid production technology.The process includes the 2…4 time dilution of waste with water, introduction of the sodium chloride and the surface-active agent in the following component ratio, in g/l:treatment thereof into an electroflotation device with graphite anode and point cathode with the cathode current density of 1…5 A/dm2, with subsequent separation of the precipitate from the aqueous suspension and its purification by filtration and recrystallization of the Berlin blue.At the same time, as surface-active agent is used the sodic salt of the higher fatty acids, and the recrystallization of the Berlin blue from the precipitate is carried out by treatment of sodium hydroxide up to its change-over into water-soluble state, filtration and separation in acid solution of the ferric sulphate(III).The result consists in increasing the efficiency of cyanide extraction from waste, as well as in reducing the labor intensiveness of the process.
MDA20060118A 2006-04-10 2006-04-10 Process for Berlin blue release from waste formed as a result of wine stock demetallization with potassium ferrocyanide(II) MD3232G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20060118A MD3232G2 (en) 2006-04-10 2006-04-10 Process for Berlin blue release from waste formed as a result of wine stock demetallization with potassium ferrocyanide(II)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20060118A MD3232G2 (en) 2006-04-10 2006-04-10 Process for Berlin blue release from waste formed as a result of wine stock demetallization with potassium ferrocyanide(II)

Publications (2)

Publication Number Publication Date
MD3232F1 MD3232F1 (en) 2007-01-31
MD3232G2 true MD3232G2 (en) 2007-08-31

Family

ID=37776656

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20060118A MD3232G2 (en) 2006-04-10 2006-04-10 Process for Berlin blue release from waste formed as a result of wine stock demetallization with potassium ferrocyanide(II)

Country Status (1)

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MD (1) MD3232G2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD131Z (en) * 2009-03-30 2010-08-31 Государственный Университет Молд0 Mineral pigments for varnish-and-paint materials and process for producing thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD1618G2 (en) * 1999-02-26 2001-08-31 Государственный Университет Молд0 Process for neutralization of waste obtained at wines demetallization with potassium ferrocyanide(II)
MD2584G2 (en) * 2003-12-29 2005-05-31 Государственный Университет Молд0 Process for neutralization of the sediment containing Berlin blue

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD1618G2 (en) * 1999-02-26 2001-08-31 Государственный Университет Молд0 Process for neutralization of waste obtained at wines demetallization with potassium ferrocyanide(II)
MD2584G2 (en) * 2003-12-29 2005-05-31 Государственный Университет Молд0 Process for neutralization of the sediment containing Berlin blue

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD131Z (en) * 2009-03-30 2010-08-31 Государственный Университет Молд0 Mineral pigments for varnish-and-paint materials and process for producing thereof

Also Published As

Publication number Publication date
MD3232F1 (en) 2007-01-31

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Legal Events

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FG4A Patent for invention issued
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees