MD3731F1 - Process for neutralization of waste obtained as a result of wine demetallization with potassium hexacyanoferrate(II) - Google Patents

Process for neutralization of waste obtained as a result of wine demetallization with potassium hexacyanoferrate(II)

Info

Publication number
MD3731F1
MD3731F1 MDA20080076A MD20080076A MD3731F1 MD 3731 F1 MD3731 F1 MD 3731F1 MD A20080076 A MDA20080076 A MD A20080076A MD 20080076 A MD20080076 A MD 20080076A MD 3731 F1 MD3731 F1 MD 3731F1
Authority
MD
Moldova
Prior art keywords
wine
waste
demetallization
neutralization
separation
Prior art date
Application number
MDA20080076A
Other languages
Romanian (ro)
Other versions
MD3731G2 (en
Inventor
Victor Covaliov
Vladimir Nenno
Olga Covaliova
Gheorghe DUCA
Boris Gaina
Original Assignee
Universitatea De Stat Din Moldova
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 Universitatea De Stat Din Moldova filed Critical Universitatea De Stat Din Moldova
Priority to MDA20080076A priority Critical patent/MD3731G2/en
Publication of MD3731F1 publication Critical patent/MD3731F1/en
Publication of MD3731G2 publication Critical patent/MD3731G2/en

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  • Removal Of Specific Substances (AREA)

Abstract

The invention relates to the wine-making industry, namely to a process for neutralization of wine demetallization waste with potassium hexacyanoferrate(II). The process for neutralization of waste obtained as a result of wine demetallization with potassium hexacyanoferrate(II) includes the preliminary dilution of waste up to 2...10% of suspended matters, leaching thereof with sodium hydroxide at the pH value of 10,8...12,4, agitation, separation of the solid phase and washing thereof with water up to the negative reaction for ion ferrocyanide, separation of solid phase from the obtained foam product being carried out by electroflotation with introduction into the processed suspension of 3...5 mg/l of polyacrylamide, treatment of the liquid phase with a stoichiometric quantity of soluble copper salts, as well as separation of the obtained copper ferrocyanide sediment. The result consists in increasing the efficiency of ferrocyanide leaching from waste, diminishing the volume of works, simplifying the technology and reducing the reagent consumption for its realization.
MDA20080076A 2008-03-18 2008-03-18 Process for neutralization of waste obtained as a result of wine demetallization with potassium hexacyanoferrate(II) MD3731G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20080076A MD3731G2 (en) 2008-03-18 2008-03-18 Process for neutralization of waste obtained as a result of wine demetallization with potassium hexacyanoferrate(II)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20080076A MD3731G2 (en) 2008-03-18 2008-03-18 Process for neutralization of waste obtained as a result of wine demetallization with potassium hexacyanoferrate(II)

Publications (2)

Publication Number Publication Date
MD3731F1 true MD3731F1 (en) 2008-10-31
MD3731G2 MD3731G2 (en) 2009-05-31

Family

ID=40030530

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20080076A MD3731G2 (en) 2008-03-18 2008-03-18 Process for neutralization of waste obtained as a result of wine demetallization with potassium hexacyanoferrate(II)

Country Status (1)

Country Link
MD (1) MD3731G2 (en)

Families Citing this family (2)

* 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
MD4139C1 (en) * 2010-06-28 2012-07-31 Государственный Университет Молд0 Process for neutralization of waste obtained from wine demetallization with potassium hexacyanoferrate (II)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2068876C1 (en) * 1992-01-31 1996-11-10 Георгий Иванович Козуб Method of waste detoxication obtained after wine demetallization with potassium ferrocyanide
MD923G2 (en) * 1997-05-16 1999-01-31 Тудор БОУНЕГРУ Process for rendering harmless the wastes, obtained by the wines potasium hexacianoferrate(II) demetallisation
MD3412G2 (en) * 2007-01-17 2008-05-31 Государственный Университет Молд0 Process for neutralization of wine-making adhesive sediments containing Berlin blue

Also Published As

Publication number Publication date
MD3731G2 (en) 2009-05-31

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Legal Events

Date Code Title Description
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