Title:
Method for providing corrosion protection to a water-steam circuit
Document Type and Number:
WIPO Patent Application WO/2020/174607
Kind Code:
A1
Abstract:
The present invention relates to a method for providing corrosion protection to a water-steam circuit having both internal surfaces made of aluminium or aluminium alloy and internal surfaces made of steel, which method comprises operating the water-steam circuit with water having a pH value, measured at 22°C, in the range of pH 8.8 to 10.0, in particular in the range of pH 9.0 to 9.6, especially in the range of pH 9.2 to 9.6 and containing a film forming amine.
Inventors:
HATER WOLFGANG (DE)
DE BACHE ANDRE (DE)
KRAFT PATRICK (DE)
DE BACHE ANDRE (DE)
KRAFT PATRICK (DE)
Application Number:
PCT/JP2019/007560
Publication Date:
September 03, 2020
Filing Date:
February 27, 2019
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
F28F19/00; C23F11/14; F28F21/08
Foreign References:
| EP0902232A1 | 1999-03-17 | |||
| US20160002793A1 | 2016-01-07 | |||
| US20140102481A1 | 2014-04-17 | |||
| JP2017154049A | 2017-09-07 | |||
| JP2016065291A | 2016-04-28 | |||
| JP2004244683A | 2004-09-02 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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