Method of separating solids by simultaneous comminution and agglomeration
CA 1249986 A · Owner: University Of Toronto Innovations Foundation (The) · Inventors: Trass, Olev
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
ROGERS, BERESKIN & PARR, TITLE: "METHOD OF SEPARATING SOLIDS BY SIMULTANEOUS COMMINUTION AND AGGLOMERATION", INVENTOR: OLEV TRASS ABSTRACT, A process is provided for the separation of a solid into its constituent lyophobic and lyophilic components by comminution and agglomeration in liquids to which the two components are respectively lyophobic and lyophilic. The process has particular application in coal beneficiation wherein ash particles are liberated into a water phase and coal particles are agglomerated with oil. The operations of comminuting and agglomerating are combined in a single step by performing the process in a mill having positive transport capability.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.