Compound scale and corrosion inhibitor and application thereof in circulating cooling water treatment
A technology of scale and corrosion inhibitor and compound, which is applied in composite scale and corrosion inhibitor and its application field in circulating cooling water treatment to avoid environmental problems, have good scale and corrosion inhibition performance, and meet the requirements of scale and corrosion inhibition. desired effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0045] Weigh 30.0g carboxymethyl inulin (substitution degree is 1.0), 10.0g carboxymethyl lignin (purchased from Tianjin Huixinde Chemical Products Sales Co., Ltd.) and 18.0g polyepoxysuccinic acid (limit Viscosity number is 0.078dl / g), added into 42.0g of water, and shaken to obtain composite scale and corrosion inhibitor stock solution S1.
[0046] Take 1g of the prepared composite scale and corrosion inhibitor stock solution S1 and add it to 10L of test water 1, so that the effective concentrations of carboxymethyl inulin, carboxymethyl lignin and polyepoxysuccinic acid in the water are 6mg / L and 10mg respectively. / L and 9mg / L, and then measure the calcium carbonate scale inhibition performance and corrosion inhibition performance according to the method in the test example.
Embodiment 2
[0048] Weigh 3.14g of zinc chloride, dissolve it in 9.0g of polyaspartic acid (limited viscosity number is 0.074dl / g at 30°C), then add 15.0g of carboxymethyl inulin raw material (degree of substitution is 0.6) and 18.0 g carboxymethyl cellulose (purchased from Jinye Industrial Co., Ltd., Renqiu, Hebei), and then add 34.86 g of water, and shake well to obtain the compound scale and corrosion inhibitor stock solution S2.
[0049] Take 0.8g of the prepared composite scale and corrosion inhibitor stock solution S2 and add it to 10L of test water 2 or 10L of test water 3, so that the concentration of carboxymethyl inulin, carboxymethyl cellulose, polyaspartic acid and zinc ions in the water The effective concentrations are 3mg / L, 18mg / L, 4.5mg / L and 1.5mg / L respectively, and then the calcium carbonate scale inhibition performance is measured according to the method in the test example.
[0050] Use sulfuric acid to adjust the pH value of the test water 2 to 7.8-8.3, then add the c...
Embodiment 3
[0052] Weigh 1g of benzotriazole, dissolve it in 12g of polyaspartic acid (at 30°C, the limiting viscosity is 0.079dl / g), then add 80.0g of carboxymethyl inulin (the degree of substitution is 0.8) and Add 6.0 g of sodium lignosulfonate (purchased from Jinan Liangfeng Trading Co., Ltd.), and then add 21 g of water, and shake well to obtain the composite scale and corrosion inhibitor stock solution S3.
[0053] Take 1.2g of the prepared composite scale and corrosion inhibitor stock solution S3 and add it to 10L of test water 1 to make the effective concentration of carboxymethyl inulin, sodium lignosulfonate, polyaspartic acid and benzotriazole in the water They are 16mg / L, 6mg / L, 6mg / L and 1mg / L respectively, and then the calcium carbonate scale inhibition performance and corrosion inhibition performance are measured according to the method in the test example.
PUM
Property | Measurement | Unit |
---|---|---|
Ultimate viscosity | aaaaa | aaaaa |
Ultimate viscosity | aaaaa | aaaaa |
Ultimate viscosity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com