Chem. J. Chinese Universities ›› 1989, Vol. 10 ›› Issue (8): 848.

• Articles • Previous Articles     Next Articles

Flocculation and Stabilization of PAM to Clay Suspension

Hou Wanguo, Zhang Chunguang, Wang Guoting   

  1. Institute of Colloid and Interface Chemistry, Shandong University, Jinan
  • Received:1988-01-28 Online:1989-08-24 Published:1989-08-24

Abstract: The flocculation kinetics of PAMto kaolinite was investigated.Flocculating ability is maximal when the hydrolysis degree (a) is between 34% and 41%.PAMhas a stabilization for Na-mont-morillonite suspension and the stability is maximal when a is between 20% and 30%.Maximum of Bingham' s yield strength τ0 appears within 30%~40% and maximum of gel strength τ0 appears within 15%~20%.These results were discussed in terms of configuration of polymer and surface properties of clay.It was indicated that PAMwhose a is about 30% may flocculate selectively kaolinite of the mixed suspension of Na-montmorillonite-kaolinite.

Key words: Polyacrylamide, Selective f locculation, Suspension

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