Process for preparing molecular sieve-base micropowder material


Application Number: 00107740
Application Date: 2000.05.25
Publication Number: 1325821
Publication Date: 2001.12.12
Priority Information:
International: C01B31/02;H05K9/00
Applicant(s) Name: Xu Yongmei
Address:
Inventor(s) Name: Yan Zifeng;Zhu Peihua;Xu Yongmei
Patent Agency Code: 00000
Patent Agent:
Abstract A process for preparing molecular sieve-base micropowder material uses heavy intermediate-base petroleum asphalt, intermediate-base coal asphalt or petroleum coke as raw material, and includes such steps as physical crushing the carbon-contained raw powder, grinding, adding activating agent and high-temp. charring in inertial atmosphere and activating. Its advantages include high specific surface area greater than 2000 sq.m/g, low density, and high weatherability, high-and low-frequency electromagnetic wave absorption and resistance to oxidazation and corrosion.