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US 10,703,659 B2Granted
Scale remover in steam generating facility
AssigneeKurita Water Industries Ltd.
InventorsMizuyuki Sakai, Yukimasa Shimura
Life of this patent
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Abstract
A scale remover that efficiently removes scale deposited inside a boiler without corroding a boiler includes polyacrylic acid and polymethacrylic acid and/or salts thereof.
Claims2
A scale remover for removing scale deposited in a system of a steam generating facility, the scale remover comprising:
- polyacrylic acid and/or a salt of the polyacrylic acid having a weight-average molecular weight of more than 20,000 to 170,000;
- and
- polymethacrylic acid and/or a salt of the polymethacrylic acid having a weight-average molecular weight of more than 5,000 to
- wherein a weight ratio of the polyacrylic acid and/or the salt of the polyacrylic acid to the polymethacrylic acid and/or the salt of the polymethacrylic acid is 1:100 to 100:1.
1 more element
Dependencies are inferred from the claim text.