A method of inhibiting scale in an industrial water system includes the steps of dosing the industrial water system with a water treatment polymer comprising at least 10 mol % of carboxylic acid monomer and a quaternized naphthalimide fluorescent monomer as disclosed herein, and then monitoring the fluorescence of the water system. The polymers are also useful for flocculation and coagulation in wastewater treatment.
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(2022/01/04)
Water-soluble quaternary ammonium salt fluorescent monomer, fluorescent polymer and their preparation methods
The invention belongs to the technical field of preparation and application of circulating cooling water treating agents and particularly relates to a water-soluble quaternary ammonium salt fluorescent monomer, a fluorescent polymer and their preparation methods. The water-soluble quaternary ammonium salt fluorescent monomer has a general formula which is shown in the description. The water-soluble quaternary ammonium salt fluorescent monomer provided herein has high fluorescent efficiency and high reaction activity.
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Paragraph 0041; 0042
(2019/06/30)
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