Caustic solution treatment process

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United States of America Patent

PATENT NO 7005076
APP PUB NO 20040245188A1
SERIAL NO

10456096

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Abstract

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A method for treating a spent caustic solution having a pH greater than about 10.5 includes the steps of (a) lowering the pH of the caustic solution into the range of between about 10 to 10.5 to produce a pH-modified caustic solution; (b) oxidizing the pH-modified caustic solution until the solution to produce a non-sulfide reactive oxidized solution; and (c) lowering the pH of the oxidized solution to a pH less than 9.

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Patent Owner(s)

Patent OwnerAddress
TRC ENVIRONMENTAL CORPORATION21 GRIFFIN ROAD NORTH WINDSOR CT 06095

International Classification(s)

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  • 2003 Application Filing Year
  • C02F Class
  • 701 Applications Filed
  • 232 Patents Issued To-Date
  • 33.10 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20032004200520062007200820092010201120122013201420150255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chowdhury, Ajit K Madison, WI 20 230
Wilk, Sarah Green Bay, WI 1 12

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  • 4 Citation Count
  • C02F Class
  • 2.12 % this patent is cited more than
  • 19 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1023813249179573101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 80100 +020406080100120140160180200220240260

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