Method for controlling alkaline earth and transition metal scali

Details Method for controlling alkaline earth and transition metal scali Method for controlling alkaline earth and transition metal scali

1998-07-13

1999-10-26

Gupta, Yogendra

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

For cleaning a specific substrate or removing a specific...

510188, 510363, 510477, 510480, 510202, 510203, 510253, 510263, 510264, 510398, 134 2, 134 3, C23G 102, C11D 330, C11D 732

Patent

active

059728680

ABSTRACT:
Alkaline earth and transition metal scaling such as calcium and magnesium scaling can be controlled or removed in pipes, vessels, heat exchanges, evaporators, and filters, and in the oil field applications such as, for example, for drilling, production, and recovery operations with the addition of an effective amount of 2-hydroxyethyl iminodiacetic acid (HEIDA) or a salt thereof.

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Research Disclosure XP 000553648, Feb. 1996, No. 382, Emsworth, GB, Philip S. Athey et al.
International Search Report dated Feb. 21, 1997 issued by the EPO acting as the International Searching Authority in PCT/US96/17641.

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