Weight losses during the hinder removal from ceramic injection moldings tha
t have been placed in beds of activated carbon powder and two types of alum
ina powder mere compared. The effect of the specimen size and shape on debi
nding in a bed of activated carbon was investigated. Because of the structu
re of its particles, activated carbon powder allowed binder losses in ceram
ic moldings that consisted of submicrometer-sized particles to increase at
a temperature of 130 degreesC. The binder loss in a bed of activated carbon
was dependent on the ratio of surface area to volume of the body that was
estracted. Renewal of the sorption abilities of the bed of activated carbon
after saturation with binder increased the rate of binder removal.