Process for cleaning an installation

Details Process for cleaning an installation Process for cleaning an installation

2011-01-11

2011-01-11

Barr, Michael (Department: 1711)

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

C134S026000, C134S028000, C134S029000

Reexamination Certificate

active

07867339

ABSTRACT:
Process for the cleaning of an installation, whereby the installation is rinsed with an alkaline cleaning solution and the result of the cleaning is tested by means of an indicator agent on the basis of permanganate in an alkaline environment. In order to make the cleaning more economical and less productive of waste water, the indicator agent that is used as an indicator is introduced into the alkaline cleaning solution for further use as a cleaning agent.

REFERENCES:
patent: 4427567 (1984-01-01), Benz
patent: 4938872 (1990-07-01), Strantz et al.
patent: 2004/0033930 (2004-02-01), Thonhauser
patent: 2007/0020794 (2007-01-01), DeBar
patent: 2007/0102665 (2007-05-01), Thonhauser
patent: 1343864 (2003-09-01), None
patent: WO-2005044968 (2005-05-01), None

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