Abstract
The phase equilibria for the system KOH–K2CrO4–Al2O3–H2O and its subsystems at 150 °C in a high alkali concentrated region were investigated. In the concentrated alkali region of the system and its subsystem KOH–Al2O3–H2O, the equilibrium solid-phase K2O·Al2O3·2H2O was found. This is different from the system KOH–Al2O3–H2O at low temperature from which the equilibrium solid-phase K2O·Al2O3·3H2O was discovered. The salting-out effect of KOH and potassium aluminate to K2CrO4 is strong. These findings can provide a significant and precious database for the production of K2CrO4 and the removal of alumina from the concentrated alkali solution that is produced in the chromate cleaner production process.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
