Removal of non-water soluble substances from solutions of aqueous metal extracts

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United States of America Patent

PATENT NO 7264736
APP PUB NO 20070003462A1
SERIAL NO

11495665

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to methods and a device for the removal of non-water soluble substances from solutions of aqueous metal extracts, by addition of at least one water-soluble cationic polyelectrolyte, containing a diallylaminoalkyl(meth)acrylamide, neutralized or quaternised with mineral acid and subsequently polymerized, preferably dimethylaminopropylacrylamide.

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Patent Owner(s)

Patent OwnerAddress
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLCDUBLIN OH 43017

International Classification(s)

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  • 2006 Application Filing Year
  • B01D Class
  • 2329 Applications Filed
  • 1445 Patents Issued To-Date
  • 62.05 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances200620072008200920102011201220132014201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuboth, Detlef Duesseldorf, DE 4 13

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  • 2 Citation Count
  • B01D Class
  • 4.51 % this patent is cited more than
  • 18 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges59718314955032161273301 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8091 - 100100 +050100150200250300350400450500550600650700750800

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