Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Selective differentiation
Patent
1998-01-28
2000-03-21
Noland, Kenneth W.
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Selective differentiation
209166, B03B 100
Patent
active
060391898
ABSTRACT:
Surface solids formation during sedimentation of a flocculated mineral suspension is minimised by flocculating the suspension with flocculating agent in the presence of surfactant, provided that the flocculating agent and surfactant are not counterionic.
REFERENCES:
patent: 4147567 (1979-04-01), Block et al.
patent: 4285695 (1981-08-01), Doerr et al.
Ciba Specialty Chemicals Water Treatments Limited
Crichton David R.
Noland Kenneth W.
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