Recycling of Spent Nickel Catalyst Used in Hydrodechlorin of Hazardous Chlorinated Aromatic Compounds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911519" target="_blank" >RIV/00216275:25310/17:39911519 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recycling of Spent Nickel Catalyst Used in Hydrodechlorin of Hazardous Chlorinated Aromatic Compounds

Popis výsledku v původním jazyce

In the present study, a simple hydrometallurgical process for the recovery of spent Raney nickel catalyst was described. Deactivated Raney nickel catalyst is produced by treatment of waste water contaminated with chlorinated aromatic contaminants using Raney Al-Ni alloy in alkaline conditions. In this hydrometallurgical process, deactivated nickel slurry is dissolved in excess of aqueous sulfuric acid by co-action of peroxosulfate, unreacted H2SO4 is separated from aqueous aluminium and nickel sulphate solution by dialysis and Ni(OH)2 was precipitated under strongly alkaline conditions with aim to separate aluminium in the form of water soluble KAl(OH)4. Isolated Ni(OH)2 is converted by neutralization to the nickel sulphate which is directly applicable as the source of in-situ produced nickel slurry as effective dechlorination catalyst in co-action of NaBH4.

Název v anglickém jazyce

Recycling of Spent Nickel Catalyst Used in Hydrodechlorin of Hazardous Chlorinated Aromatic Compounds

Popis výsledku anglicky

In the present study, a simple hydrometallurgical process for the recovery of spent Raney nickel catalyst was described. Deactivated Raney nickel catalyst is produced by treatment of waste water contaminated with chlorinated aromatic contaminants using Raney Al-Ni alloy in alkaline conditions. In this hydrometallurgical process, deactivated nickel slurry is dissolved in excess of aqueous sulfuric acid by co-action of peroxosulfate, unreacted H2SO4 is separated from aqueous aluminium and nickel sulphate solution by dialysis and Ni(OH)2 was precipitated under strongly alkaline conditions with aim to separate aluminium in the form of water soluble KAl(OH)4. Isolated Ni(OH)2 is converted by neutralization to the nickel sulphate which is directly applicable as the source of in-situ produced nickel slurry as effective dechlorination catalyst in co-action of NaBH4.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

<a href="/cs/project/TG02010058" target="_blank" >TG02010058: Podpora aktivit proof-of-concept na Univerzitě Pardubice</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 20th International Conference on Waste Recycling

ISBN

978-80-89883-04-2

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

4

Strana od-do

9-12

Název nakladatele

Ústav geotechniky SAV

Místo vydání

Košice

Místo konání akce

Košice

Datum konání akce

6. 12. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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