Binder for granulation molding of granular material and granulated molded product

摘要

Conventional binders require water for granulation, are poor in shape retention, generate a large amount of smoke when used in granulated moldings, thus deteriorating the working atmosphere, and causes excessive heating of granulated moldings, and therefore there are many disadvantages to limit their use. The binder of the invention is compounded with a resin having a softening point suitable as a binder resin for toners, preferably 100° C. or less, for example polyol resin, styrene-acrylic copolymer or polyester resin. As the binder, waste toners can be utilized. The binder does not require addition of water and is excellent in water resistance, and is thus effective for production of steel-making flux particularly from aluminum residues such as alumidoloss and aluminum ash.