Title: Process for preparing coal slurry by utilizing black liquid from straw paper making
Application Number: 98101428 Application Date: 1998.04.24
Publication Number: 1233647 Publication Date: 1999.11.03
Approval Pub. Date: Granted Pub. Date: 2002.10.30
International Classifi-cation: C10L1/32
Applicant(s) Name: Beijing Science and Tech. Univ. Address: 100083
Inventor(s) Name: Xiao Baoqing, Wang Jiyou
Attorney & Agent: lu zhongqiang
Abstract:
     A process of preparing coal slurry by utilizing the black liquor of paper mill using straws as raw material is characterized by that the coal with ash content 1-20% and particle size 0.001-50 mm is used as raw material and in the process of preparing coal slurry, the black liquor of straw paper mill with solid content 5-50% is added to use the lignin in black liquor as dispersing agent and water in black liquor as dispersing medium. It not only saves the materials used in preparing coal slurry and large quantity of clean water, but also recovers the heat energy in black liquor.
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