Tag Archives: sludge

High-iron sulfuric acid sludge cement

Application Number: 00107675Application Date: 2000.05.23Publication Number: 1324778Publication Date: 2001.12.05Priority Information: International: C04B7/24;C04B24/00Applicant(s) Name: Youhe Panbao Science & Technology Development Co., Ltd., BeijingAddress: Inventor(s) Name: Wu YanxiongPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to a sulfate superferric cement made up by utilizing the offscum produced in the production of sulfuric acid, and its… Read More »

Zn-Co sludge treating method

Application Number: 00102775Application Date: 2000.02.21Publication Number: 1310242Publication Date: 2001.08.29Priority Information: International: C22B3/14;C22B7/00Applicant(s) Name: Beijing Non-ferrous Metallurgy Design and Research General Inst.Address: Inventor(s) Name: Li Guomin;Liu Cheng;Dong AiguoPatent Agency Code: 11234Patent Agent: wan huatangAbstract The present invention relates to the method of treating Zn-Co sludge at 40-90 deg.c while stirring, adding zinc powder to eliminate impurity,… Read More »