MD2746F1 - Procedeu de eliminare selectiva a ionilor de cianura, tiocianat si cianat din solutii - Google Patents

Procedeu de eliminare selectiva a ionilor de cianura, tiocianat si cianat din solutii Download PDF

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Publication number
MD2746F1
MD2746F1 MDA20040118A MD20040118A MD2746F1 MD 2746 F1 MD2746 F1 MD 2746F1 MD A20040118 A MDA20040118 A MD A20040118A MD 20040118 A MD20040118 A MD 20040118A MD 2746 F1 MD2746 F1 MD 2746F1
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MD
Moldova
Prior art keywords
thiocyanate
cyanide
solutions
cyanate
selective removal
Prior art date
Application number
MDA20040118A
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English (en)
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MD2746G2 (ro
Inventor
Vasile Gutanu
Ilie ROSCA
Original Assignee
Universitatea De Stat Din Moldova
Universitatea Tehnica A Moldovei
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.)
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Publication date
Application filed by Universitatea De Stat Din Moldova, Universitatea Tehnica A Moldovei filed Critical Universitatea De Stat Din Moldova
Priority to MDA20040118A priority Critical patent/MD2746G2/ro
Publication of MD2746F1 publication Critical patent/MD2746F1/ro
Publication of MD2746G2 publication Critical patent/MD2746G2/ro

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Abstract

Inventia se refera la chimie si anume la un procedeu de purificare a solutiilor de ionii de cianura, tiocianat si cianat, inclusiv a apelor reziduale obtinute la extractia metalelor neferoase si pretioase si din industria cocsochimica. Esenta inventiei consta in aceea ca solutia, care contine ioni de cianura, tiocianat sau cianat se trece printr-o coloana cu sorbent schimbator de anioni selectiv, obtinut prin modificarea in prealabil a anionitilor puternic bazici cu compusi de fier(III), la tratarea a 0,5...1,0 g de anionit cu 100 ml de solutie, ce contine 6...8 g/l sulfat de fier(III) nonahidrat la temperatura de 45...55?C timp de 8...12 ore. ŕ
MDA20040118A 2004-05-13 2004-05-13 Procedeu de eliminare selectivă a ionilor de cianură, tiocianat şi cianat din soluţii MD2746G2 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20040118A MD2746G2 (ro) 2004-05-13 2004-05-13 Procedeu de eliminare selectivă a ionilor de cianură, tiocianat şi cianat din soluţii

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20040118A MD2746G2 (ro) 2004-05-13 2004-05-13 Procedeu de eliminare selectivă a ionilor de cianură, tiocianat şi cianat din soluţii

Publications (2)

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

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MDA20040118A MD2746G2 (ro) 2004-05-13 2004-05-13 Procedeu de eliminare selectivă a ionilor de cianură, tiocianat şi cianat din soluţii

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MD (1) MD2746G2 (ro)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD4318C1 (ro) * 2013-06-18 2015-08-31 Государственный Университет Молд0 Procedeu de purificare a apei de nitraţi şi nitriţi

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU592761A1 (ru) * 1976-01-07 1978-02-15 Государственный Научно-Исследовательский И Проектный Институт По Обогащению Руд Цветных Металлов Способ очистки сточных вод
RU2154613C1 (ru) * 1999-06-21 2000-08-20 Байкальский институт природопользования СО РАН Способ очистки сточных вод от цианидов и роданидов

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Publication number Publication date
MD2746G2 (ro) 2005-12-31

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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