Scale remover in steam generating facility
US-2018215637-A1 · Aug 2, 2018 · US
Scale remover in steam generating facility
US10703659B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10703659-B2 |
| Application number | US-201815935850-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 26, 2018 |
| Priority date | Feb 13, 2014 |
| Publication date | Jul 7, 2020 |
| Grant date | Jul 7, 2020 |
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- Title
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Abstract
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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.
First claim
Opening claim text (preview).
The invention claimed is: 1. 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. 2. The scale remover in a steam generating facility according to claim 1 , wherein the polymethacrylic acid and/or a salt of the polymethacrylic acid has a concentration of 1 to 1,000 mg/L in a boiler water of the steam generating facility.
Assignees
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Classifications
by chemical means · CPC title
Cleaning travelling work · CPC title
Washing-out devices · CPC title
Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence) · CPC title
Carboxylic acids or salts thereof · CPC title
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Frequently asked questions
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- What does patent US10703659B2 cover?
- 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.
- Who is the assignee on this patent?
- Kurita Water Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C02F5/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 07 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).