FLOCCULENT ADDITION AND MIXING RATE FOR SEPARATING A SLURRY

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United States of America Patent

APP PUB NO 20130168326A1
SERIAL NO

13808978

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention concerns a method for separating solid and liquor components of a process slurry comprising solid material entrained in a liquor, said method comprising: (a) a pre-treatment step of adding a flocculent to the process slurry and mixing the flocculent and the slurry by selecting a higher extent of mixing in an early stage of said step than in a later stage of said step, and (b) a solid/liquor separation step of allowing separation of solid material, including aggregates of solid material, and liquor of said process slurry to produce process outputs of a clarified liquor and solid material with some entrained liquor. The invention also concernes a method and an apparatus for adding a flocculent to a process slurry.

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Patent Owner(s)

Patent OwnerAddress
RIO TINTO ALCAN INTERNATIONAL LIMITED1188 SHERBROOKE WEST MONTREAL H3A 3G2

International Classification(s)

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  • 2011 Application Filing Year
  • B01D Class
  • 3215 Applications Filed
  • 2644 Patents Issued To-Date
  • 82.24 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201120122013201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bouchard, Nicolas-Alexandre Jonquiere, CA 1 3
Dufour, Renald Jonquiere, CA 4 40
Peloquin, Guy Jonquiere, CA 9 59

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  • 3 Citation Count
  • B01D Class
  • 7.73 % this patent is cited more than
  • 12 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges13510753001314922121333401 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 90100 +0501001502002503003504004505005506006507007508008509009501000105011001150

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