Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: 1-decylimidazole

Sortuj według:

Ogranicz wyniki do:

The application of polymer inclusive membranes for removal of heavy metal ions from waste solutions

Gajda B., Bogacki M. B.

Journal of Achievements in Materials and Manufacturing Engineering

2012

Vol. 55, nr 2

673--678

Purpose: The aim of the conducted studies was to determine the possibility of selective separation and precipitation of metal ions from polimetalic solution containing nickel(II), cobalt(II), cadmium(II) and zinc(II) cations using polymer inclusive membranes. 1-decylimidazole was used in membrane as a carrier of ions. The influence of chloride anions concentration on the process has also been investigated. Design/methodology/approach: Polymer inclusive membranes (PIM) containing cellulose acetate as a matrix, orto-nitrophenyl octyl ether (ONPOE) as a plasticizer and 1-decylimidazole as a carrier were used in investigations. The membrane processes were carried out in a membrane module for 24 hours. Findings: The results obtained point out a significant influence of chloride anions concentration on separation process of certain metal ions. It was observed that zinc(II) ions are isolated most effectively from the solution containing 2M of chloride anions. About 88% of Zn(II), 5.5% of Co(II), 6.5% of Cd(II) and below 1% of Ni(II) were separated from such a solution. Research limitations/implications: The obtained results show that it is possibility of the selective extraction of heavy metal ions from polymetallic chloride solutions in membrane processes. The aqueous solution containing 2M of chloride ions was used in the investigation. Practical implications: The results show that Zn(II) can be effectively recovered from solutions containing Co(II), Cd(II) and Ni(II). This process would allow the utilization of waste solutions containing the heavy metal ions. The results of the study presented in the paper can be used in the utilization process of the spent batteries and accumulators. Originality/value: The innovative issue shown in this paper concerns the usage of 1-decylimidazole in selective separation of nickel(II), cobalt(II), cadmium(II) and zinc(II) ions in membrane process using PIM.

Separation of cobalt(II), nickel(II), zinc(II) and cadmium(II) ions from chloride solution

Gajda B., Skrzypczak A., Bogacki M. B.

Physicochemical Problems of Mineral Processing

2011

Vol. 46

289-294

Selective distribution of cobalt(II), nickel(II), zinc(II) and cadmium(II) ions from chloride solutions through polymer inclusion membranes (PIM) has been studied. The carrier was 1-decylimidazole. The effect of chloride ion concentration on the ion permeation was analysed. The results suggest that some of metal ions change for the worse selectivity of separation process. Especially zinc(II) and cadmium(II) ions decreased five-fold selectivity of ion separation process.

W pracy przedstawiono wyniki badań selektywnego rozdziału jonów kobaltu(II), niklu(II), cynku(II) i kadmu(II) z roztworów chlorkowych w procesie selektywnego ich rozdziału w procesie membranowym przez polimerowe membrany inkluzyjne (PIM). Jako przenośnik zastosowano 1-decyloimidazol. Uzyskane wyniki wskazują, że obecność jonów niektórych metali pogarszać może selektywność rozdziału. Szczególne znaczenie mają tutaj jony cynku(II) oraz kadmu(II), które prawie 5-krotnie pogarszają selektywność rozdziału jonów niklu(II) od kobaltu(II).