发明名称 |
Decarbonation of tailings sludge to improve settling |
摘要 |
Carbonates and bicarbonates are removed from the sludge of tar sands tailings ponds whereby solids settle from the sludge more rapidly than in the presence of the carbonates and/or bicarbonates. Hydrolyzed starch is used as a flocculant in the process and alcohol may also be used to assist in the settling and/or to improve the characteristics of the settled sludge for subsequent dewatering.
|
申请公布号 |
US4414117(A) |
申请公布日期 |
1983.11.08 |
申请号 |
US19820416729 |
申请日期 |
1982.09.10 |
申请人 |
SUNCOR, INC. |
发明人 |
YONG, RAYMOND N.;SETHI, AMAR J. |
分类号 |
B03B9/02;B03D1/016;B03D3/06;C02F1/52;C22B3/22;(IPC1-7):C02F11/14 |
主分类号 |
B03B9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|