Jeffrey A. Jankowski - Naperville IL Calvin T. Tobison - Carol Stream IL
Assignee:
Nalco Chemical Company
International Classification:
C02F 156
US Classification:
210727
Abstract:
A method for dewatering coal tailings, clean coal products and mineral slurries with an effective coagulating amount of a combination of a cationic polymer and a starch. A preferred cationic polymer is poly(dimethylaminoethylacrylate methyl chloride quaternary salt) and preferred starches are unmodified.
Jeff Jankowski (1976-1980), Fred Quinn (1974-1978), John Iwinski (1960-1964), Dennis Mahoney (1958-1962), Stephen Kennedy (1974-1978), Todd Schroeder (1981-1985)