Rice husk ashes for producing fireproof insulators and for use as densifying material consist of crystalline and X-ray amorphous material produced by firing the rice husk at 1200-1400 degrees C. The insulating material also contains 1-3 CaO.
申请公布号
DE1812827(A1)
申请公布日期
1970.06.18
申请号
DE19681812827
申请日期
1968.12.05
申请人
EDELSTEIN- UND MINERALIEN-HANDELSGESELLSCHAFT MINEG MBH