FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy. Aqueous solution of alumina-boria phosphate concentrate is subjected to electrodialysis at current strength of 0.2-1.5 A and mixed with aqueous solution of polyvinyl alcohol in volume ratio of (2…4):1.
EFFECT: higher physical-mechanical properties of silica-free binder-based ceramic molds.
2 tbl, 2 ex
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