ISSN 2594-5327
45º Congresso anual — Vol. 45, Num. 1 (1990)
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The purpose of this work is to study the quaternary reciprocal system phase diagram Co²⁺, Na⁺, SO₄²⁻, Cl⁻ – H₂O at 25°C using the isoplets method (vertical sections). Twelve isoplets were established experimentally and the data solubilities were obtained from density measurements. The crystallization areas of Na₂SO₄·10H₂O, Na₂SO₄, NaCl, CoSO₄·7H₂O, CoSO₄, Na₂SO₄·4H₂O and CoCl₂·6H₂O were defined as well as the three-phase and four-phase fields. In order to find out the extraction conditions of the cobalt from the sulphate solutions containing NaCl, we have made investigations in the crystallization area of the Na₂SO₄·CoSO₄·4H₂O in the diagram.
Palavras-chave
Phase diagram, Quaternary system, Cobalt sulfate, Sodium chloride, Solubility, Phase equilibrium
Como citar
Souza, C. Pereira de; Said, J..
Etude a 25ºC Du Diagramme Quaternaire Reciproque CoSo4 NaC 1, CoC12, Na2So4, H2O. Calcul Des Quantites relatives Des Phases em Equilibre,
p. 1173-1188.
In: 45º Congresso anual,
Rio de Janeiro, Brasil,
1990.
ISSN: 2594-5327, DOI 10.5151/2594-5327-1990-45-v3-407-422
