Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...
Reexamination Certificate
2006-08-08
2006-08-08
Silverman, Stanley S. (Department: 1754)
Cleaning and liquid contact with solids
Processes
For metallic, siliceous, or calcareous basework, including...
C134S026000, C134S028000, C588S001000, C588S319000, C588S320000, C588S412000, C976SDIG037
Reexamination Certificate
active
07087120
ABSTRACT:
A method for chemically decontaminating radioactive material. The method includes reducing-dissolving step for setting surface of radioactive material in contact with reducing decontamination liquid including mono-carboxylic acid and di-carboxylic acid as dissolvent; and oxidizing-dissolving step for setting the surface of the radioactive material in contact with oxidizing decontamination liquid including oxidizer. The method may include repeated pairs of steps, each pair including the reducing-dissolving step and the oxidizing-dissolving step. The mono-carboxylic acid may include formic acid, and the di-carboxylic acid includes oxalic acid. The oxidizer may be ozone, permanganic acid or permanganate.
REFERENCES:
patent: 3873362 (1975-03-01), Mihram et al.
patent: 4217192 (1980-08-01), Lerch et al.
patent: 4226640 (1980-10-01), Bertholdt
patent: 4287002 (1981-09-01), Torok
patent: 4508641 (1985-04-01), Hanulik
patent: 4587043 (1986-05-01), Murray et al.
patent: 4756768 (1988-07-01), Bertholdt et al.
patent: 5093073 (1992-03-01), Schenker
patent: 5205999 (1993-04-01), Willis et al.
patent: 5305360 (1994-04-01), Remark et al.
patent: 5386078 (1995-01-01), Hanulik
patent: 5640703 (1997-06-01), Brierley et al.
patent: 5752206 (1998-05-01), Frink et al.
patent: 5832393 (1998-11-01), Omata et al.
patent: 5958247 (1999-09-01), Bertholdt et al.
patent: 6169221 (2001-01-01), Milner et al.
patent: 6613153 (2003-09-01), Bertholdt et al.
patent: 6635232 (2003-10-01), Yaita et al.
patent: 6875323 (2005-04-01), Yaita et al.
patent: 44 10 747 (1995-10-01), None
patent: 0 533 494 (1993-03-01), None
patent: 1 220 233 (2002-07-01), None
patent: 2 064 852 (1981-06-01), None
patent: 2 284 702 (1995-06-01), None
patent: 5-209997 (1993-06-01), None
patent: 7-140296 (1995-06-01), None
patent: 9-159798 (1997-06-01), None
patent: 9-510784 (1997-10-01), None
patent: 2000-81498 (2000-03-01), None
patent: 2002-250794 (2002-09-01), None
patent: 2003-50296 (2003-02-01), None
DERWENT abstract accession No. 1986-314479, for JP 61-2131496, published Oct. 1986.
DERWENT abstract accession No. 1997-302285, for JP 9-113690, published May 1997.
JPO abstract for JP 9-113690, published May 1997.
Enda Masami
Inami Ichiro
Kanasaki Takeshi
Sakai Hitoshi
Sato Mitsuyoshi
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