Title:
イオン交換樹脂を使用する酸化触媒の回収方法
Document Type and Number:
Japanese Patent JP5296781
Kind Code:
B2
Abstract:
A process for the removal and recovery of at least one heavy metal and at least one halogen from a liquid stream in a chemical process is disclosed. The process comprises the steps of contacting the liquid stream with a strong base anion exchange resin; and contacting a discharge stream from the first step with a chelating cation exchange resin. The recovery process optionally includes a step regenerating the anion exchange resin by contacting the anion exchange resin with an anion exchange resin regeneration solution to form recovered heavy metals and halogens. Optimally, the recovery process of the present invention also includes a step of regenerating the chelating cation exchange resin to form recovered heavy metals and halogens.
Inventors:
Monageddo, Marzio
Pirras, Luciano
Kokko, Giovanni
Pirras, Luciano
Kokko, Giovanni
Application Number:
JP2010509919A
Publication Date:
September 25, 2013
Filing Date:
May 16, 2008
Export Citation:
Assignee:
Dow Italy Sochieta Responsabilita Limite
International Classes:
B01J45/00; B01J23/94; B01J27/28; B01J38/00; B01J39/04; B01J41/04; B01J49/00
Domestic Patent References:
| JP8229413A | ||||
| JP2002012573A | ||||
| JP49123192A | ||||
| JP49133290A | ||||
| JP53104590A | ||||
| JP2004285045A | ||||
| JP2008514419A | ||||
| JP2003507156A | ||||
| JP2003507160A | ||||
| JP10176532A | ||||
| JP53133574A | ||||
| JP5221655A |
Foreign References:
| US5955394 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Satoshi Deno
Atsushi Ebiya
Takashi Ishida
Tetsuji Koga
Yoshihiro Kobayashi
Satoshi Deno
Atsushi Ebiya
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