MD2746G2 - Process for selective removal of cyanide, thiocyanate, cyanate ions from solutions - Google Patents

Process for selective removal of cyanide, thiocyanate, cyanate ions from solutions

Info

Publication number
MD2746G2
MD2746G2 MDA20040118A MD20040118A MD2746G2 MD 2746 G2 MD2746 G2 MD 2746G2 MD A20040118 A MDA20040118 A MD A20040118A MD 20040118 A MD20040118 A MD 20040118A MD 2746 G2 MD2746 G2 MD 2746G2
Authority
MD
Moldova
Prior art keywords
thiocyanate
cyanide
cyanate ions
solutions
solution
Prior art date
Application number
MDA20040118A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD2746F1 (en
Inventor
Василе ГУЦАНУ
Илие РОШКА
Original Assignee
Государственный Университет Молд0
Технический университет Молдовы
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, Технический университет Молдовы filed Critical Государственный Университет Молд0
Priority to MDA20040118A priority Critical patent/MD2746G2/en
Publication of MD2746F1 publication Critical patent/MD2746F1/en
Publication of MD2746G2 publication Critical patent/MD2746G2/en

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  • Removal Of Specific Substances (AREA)

Abstract

The invention relates to chemistry, namely to a process for solution purification from cyanide, thiocyanate, cyanate ions, including waste waters, obtained as a result of non-ferous and noble metals extraction and in the by-product coke industry.Summary of the invention consists in that the solution containing cyanide, thiocyanate, cyanate ions is passed through a column with selective anion-exchange sorbent, obtained by preliminary modification of highly basic anionites with compounds of ferrum (III), by treatment of 0,5…1,0 g of anionite with 100 ml of solution, containing 6…8 g/l of ferric (III) sulphate nonahydrate at the temperature of 45…55°C during 8…12 hours.
MDA20040118A 2004-05-13 2004-05-13 Process for selective removal of cyanide, thiocyanate, cyanate ions from solutions MD2746G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20040118A MD2746G2 (en) 2004-05-13 2004-05-13 Process for selective removal of cyanide, thiocyanate, cyanate ions from solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20040118A MD2746G2 (en) 2004-05-13 2004-05-13 Process for selective removal of cyanide, thiocyanate, cyanate ions from solutions

Publications (2)

Publication Number Publication Date
MD2746F1 MD2746F1 (en) 2005-04-30
MD2746G2 true MD2746G2 (en) 2005-12-31

Family

ID=34511285

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20040118A MD2746G2 (en) 2004-05-13 2004-05-13 Process for selective removal of cyanide, thiocyanate, cyanate ions from solutions

Country Status (1)

Country Link
MD (1) MD2746G2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4318C1 (en) * 2013-06-18 2015-08-31 Государственный Университет Молд0 Process for water purification from nitrates and nitrites

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU592761A1 (en) * 1976-01-07 1978-02-15 Государственный Научно-Исследовательский И Проектный Институт По Обогащению Руд Цветных Металлов Method of purifying waste water
RU2154613C1 (en) * 1999-06-21 2000-08-20 Байкальский институт природопользования СО РАН Method of treating waste waters to remove cyanides and thiocyanates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU592761A1 (en) * 1976-01-07 1978-02-15 Государственный Научно-Исследовательский И Проектный Институт По Обогащению Руд Цветных Металлов Method of purifying waste water
RU2154613C1 (en) * 1999-06-21 2000-08-20 Байкальский институт природопользования СО РАН Method of treating waste waters to remove cyanides and thiocyanates

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Смирнов Д.Н., Генкин В.Е. Очистка сточных вод в процессах обработки металлов. Москва, Металлургия, 1980, с. 78-82 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4318C1 (en) * 2013-06-18 2015-08-31 Государственный Университет Молд0 Process for water purification from nitrates and nitrites

Also Published As

Publication number Publication date
MD2746F1 (en) 2005-04-30

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Legal Events

Date Code Title Description
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