MD3165F1 - Procedeu de obtinere a membranelor catalitice si procedeu de epurare a solutiilor apoase deimpuritati organice greu degradabile - Google Patents

Procedeu de obtinere a membranelor catalitice si procedeu de epurare a solutiilor apoase deimpuritati organice greu degradabile Download PDF

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Publication number
MD3165F1
MD3165F1 MDA20050275A MD20050275A MD3165F1 MD 3165 F1 MD3165 F1 MD 3165F1 MD A20050275 A MDA20050275 A MD A20050275A MD 20050275 A MD20050275 A MD 20050275A MD 3165 F1 MD3165 F1 MD 3165F1
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MD
Moldova
Prior art keywords
sodium
solution containing
carried out
organic impurities
degradable organic
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MDA20050275A
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English (en)
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MD3165G2 (ro
Inventor
Olga Covaliova
Victor Covaliov
Mihail Ivanov
Gheorghe DUCA
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Universitatea De Stat Din Moldova
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Priority to MDA20050275A priority Critical patent/MD3165G2/ro
Publication of MD3165F1 publication Critical patent/MD3165F1/ro
Publication of MD3165G2 publication Critical patent/MD3165G2/ro

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Abstract

Inventia se refera la un procedeu de obtinere a membranelor catalitice ce pot fi utilizate la epurarea solutiilor apoase de impuritati organice greu degradabile. Esenta inventiei consta in aceea ca pe suprafata preventiv activata a substratului se depune acoperirea din aliajele de Ni-W-B sau Ni-Mo-B, iar solubilizarea electrochimica a borului se efectueaza prin tratare anodica la o densitate a curentului de 10 mA/cm2 cu o solutie de electrolit ce contine, % de masa:hidroxid de sodiu 3…5 hipoclorit de sodiu 10…15.Totodata, in calitate de substrat se utilizeaza elemente tubulare din cordieritcu porozitatea de 0,1…0,5 mm, suprafetele lor se activeaza cu o solutie ce contine saruri de paladiu si staniu (II) si pe ele se depune un aliaj de nichel-wolfram-bor obtinut din solutia ce contine acetat de nichel, wolframat de sodiu, etilendiaminasi trietanolamina, hidroxid de sodiu, borhidrura de sodiu si nitrat de taliu(I), iar depunerea lui se efectueaza la temperatura de 90…95°C timp de 40…60 min, sau un aliaj de nichel-molibden-bor obtinut din solutia ce contine sulfat de nichel, molibdat de sodiu, pirofosfat de potasiu, trietanolamina, hidroxid de amoniu, dimetilaminoboran si nitrat de taliu(I), iar depunerea lui se efectueaza la temperatura de 75…80°C timp de 60…90 min. Procedeul de epurare a solutiilor apoase de impuritati organice greu degradabile se efectueaza prin filtrarea lor prin membranele catalitice obtinute conform inventiei, cu o viteza de 30…50 ml/cm2·min si iradierea ultravioleta de 12…20 mJ/cm2.
MDA20050275A 2005-09-15 2005-09-15 Procedeu de obţinere a membranelor catalitice şi procedeu de epurare a soluţiilor apoase de impurităţi organice greu degradabile MD3165G2 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20050275A MD3165G2 (ro) 2005-09-15 2005-09-15 Procedeu de obţinere a membranelor catalitice şi procedeu de epurare a soluţiilor apoase de impurităţi organice greu degradabile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20050275A MD3165G2 (ro) 2005-09-15 2005-09-15 Procedeu de obţinere a membranelor catalitice şi procedeu de epurare a soluţiilor apoase de impurităţi organice greu degradabile

Publications (2)

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MD3165F1 true MD3165F1 (ro) 2006-10-31
MD3165G2 MD3165G2 (ro) 2007-05-31

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MDA20050275A MD3165G2 (ro) 2005-09-15 2005-09-15 Procedeu de obţinere a membranelor catalitice şi procedeu de epurare a soluţiilor apoase de impurităţi organice greu degradabile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD1830G2 (ro) * 1999-09-06 2002-07-31 Государственный Университет Молд0 Procedeu de obţinere a catalizatorului metalic

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MD3165G2 (ro) 2007-05-31

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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