Process for beneficiating coal by means of selective agglomeration
CA 1294912 C · Owner: Passarini, Nello · Inventors: Passarini, Nello; Vettor, Antonio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PROCESS FOR BENEFICIATING COAL BY MEANS OF SELECTIVE AGGLOMERATION", Abstract, A process is disclosed for the beneficiation of coal by means of selective agglomeration, wherein an agglomerating blend is uses, which is constituted by: - one or more main agglomerating agent(s) selected from, the light hydrocarbons having a boiling temperature not higher than 70°C, - one or more non-ionic additive(s) selected from oil-, soluble ethoxylated compounds; - one or more heavy co-agglomerating agent(s) selected from oils deriving from the distillation of coal-tar having a boiling temperature comprised within the range of from 200 to 400°C or the residual products from oil processing or blends thereof.
Read the whole patent
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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.