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Phase diagram for the Na 2 O–PbO–H 2 O system at 130 °C
Author(s) -
Liu Yan,
Duan Dongping
Publication year - 2017
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.2090
Subject(s) - phase diagram , materials science , chemistry , phase (matter) , organic chemistry
A phase diagram of the Na 2 O–PbO–H 2 O system at 130 °C was studied using Schreinemakers's method, to provide fundamental data for producing PbO via hydrometallurgical process. In the phase diagram, saturated solubility of PbO has two maximum values vs the sodium hydroxide concentration in the solution. The equilibrium solid phases of lead oxide (PbO), sodium plumbite hydroxide (Na 2 O·PbO·H 2 O) and sodium hydroxide (NaOH) were identified in the different alkali concentration regions, which is different from that at low temperature presented in literature. Copyright © 2017 Curtin University of Technology and John Wiley & Sons, Ltd.