INVESTIGATION OF ALUMINATE SOLUTIONS BY COMPUTER SIMULATION OF PHYSICOCHEMICAL PROCESSES

摘要

Thermodynamic simulation of physicochemical processes that form the basis for fabrication and processing of aluminate solutions is performed. It is established that the stability boundaries of the ion complex structures formed in decomposition of aluminate solutions are defined by a temperature T = 85 deg C, caustic modulus a~ in the range 1.75-1.65, and degree of carbonization (molecular ratio C/Al) w = 0.6. The formation of hydroaluminocarbonates can be realized at aluminate concentrations in the carbonizing solutions of at least 0.05 mole/dm~3.