Controlling corrosion in process water systems

Details Controlling corrosion in process water systems Controlling corrosion in process water systems

2006-12-26

2006-12-26

Hopkins, Robert A. (Department: 1724)

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

C210S749000, C210S143000, C210S198100, C210S251000, C442S391000

Reexamination Certificate

active

07153437

ABSTRACT:
A system for controlling the pH of the process water used in conjunction with formaldehyde-free binder composition for glass fiber products. A base solution is introduced into the process water used to coat the glass fibers in the formaldehyde-free binder after the water is extracted from binder coated glass fibers when the pH of the process water in less than about 6.0. The addition of the base solution increases the pH of the process water to a range from about 8.0 to about 6.0 thereby reducing the risk of corrosion when the process water is recirculated.

REFERENCES:
patent: 3899294 (1975-08-01), Magiros
patent: 7083855 (2006-08-01), Lane et al.

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