Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Calcium sulfate scale inhibitor and preparation method thereof

A calcium sulfate scale and antiscalant technology, which is applied in chemical instruments and methods, descaling and water softening, and special treatment objectives, etc., can solve the problems of high cost of scale inhibitors in water treatment, poor scale inhibitor dispersibility, and poor slow release performance and other problems, to achieve the effect of saving the cost of use, good electrostatic repulsion, and low cost

Inactive Publication Date: 2018-11-13
SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In view of the above technical problems, the present application provides a calcium sulfate scale inhibitor and its preparation method, which solve the technical problems of existing water treatment scale inhibitors such as high cost, environmental protection, poor scale inhibitor dispersibility, and poor slow-release performance.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh 4 parts of sodium lignosulfonate according to the ratio of parts by weight; 1 part of borax; 2 parts of sodium borate; 3 parts of propylene glycol; 100 parts of water; 6 parts of ammonium tungstate; 5 parts of polyphosphoric acid; 2.5 parts of polyol phosphate 6 parts of methyl acrylate; 1 part of triethyl phosphate; 4 parts of dioctyl succinate; 5 parts of dimethyl maleate; 7 parts of sodium molybdate; 1 part of hydroxylamine; 2-mercaptobenzothiazole 0.5 servings.

[0030] Add methyl acrylate and water into a four-neck flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a reflux condenser, heat to 50°C, stir for 15 minutes, add sodium lignosulfonate and propylene glycol dropwise, and heat up to 70°C, react for 1h.

[0031] Add ethylenediamine, polyol phosphate, sodium borate and triethyl phosphate, raise the temperature to 90°C, and react for 2h.

[0032] Raise the temperature to 100-110°C, add the remaining raw mater...

Embodiment 2

[0035] Weigh 8 parts of sodium lignosulfonate according to the weight ratio; 5 parts of borax; 6 parts of sodium borate; 7 parts of propylene glycol; 100 parts of water; 10 parts of ammonium tungstate; 9 parts of polyphosphoric acid; 6.5 parts of polyol phosphate ; 10 parts of methyl acrylate; 3 parts of triethyl phosphate; 6 parts of dioctyl succinate; 7 parts of dimethyl maleate; 9 parts of sodium molybdate; 3 parts of hydroxylamine; 2-mercaptobenzothiazole 4.5 servings.

[0036]Add methyl acrylate and water into a four-neck flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a reflux condenser, heat to 70°C, stir for 35 minutes, add sodium lignosulfonate and propylene glycol dropwise, and heat up to 90°C, react for 3h.

[0037] Add ethylenediamine, polyol phosphate, sodium borate and triethyl phosphate, raise the temperature to 100°C, and react for 6h.

[0038] Raise the temperature to 110°C, add the remaining raw materials, sti...

Embodiment 3

[0041] Weigh 6 parts of sodium lignosulfonate according to the ratio of parts by weight; 3 parts of borax; 4 parts of sodium borate; 5 parts of propylene glycol; 100 parts of water; 8 parts of ammonium tungstate; 7 parts of polyphosphoric acid; 4.5 parts of polyol phosphate ; 8 parts of methyl acrylate; 2 parts of triethyl phosphate; 5 parts of dioctyl succinate; 6 parts of dimethyl maleate; 8 parts of sodium molybdate; 2 parts of hydroxylamine; 2-mercaptobenzothiazole 2.5 servings.

[0042] Add methyl acrylate and water into a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a reflux condenser, heat to 60°C, stir for 25 minutes, add sodium lignosulfonate and propylene glycol dropwise, and heat up to 80°C, react for 2h.

[0043] Add ethylenediamine, polyol phosphate, sodium borate and triethyl phosphate, raise the temperature to 95°C, and react for 4h.

[0044] Raise the temperature to 105°C, add the remaining raw ma...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The application discloses a calcium sulfate scale inhibitor and a preparation method thereof. The calcium sulfate scale inhibitor is prepared from the following raw materials: sodium lignosulfonate, borax, sodium borate, propylene glycol, water, ammonium tungstate, polyphosphoric acid, polyhydric alcohol phosphate ester, methyl acrylate, triethyl phosphate, dioctyl succinate, dimethyl maleate, sodium molybdate, hydroxylamine and 2-mercapto benzothiazole; a product is mainly used for inhibiting calcium sulfate scale, and has good calcium tolerance, the inhibition rate of 97 to 99.9 percent, andno pretreatment is needed; the calcium sulfate scale inhibitor has the advantages of good electrostatic repulsion, capability of inhibiting inorganic salt coalescence, no possibility of scaling underthe condition of alkaline environment and high concentration multiples and good treatment effect on water with high hardness and high silicon content; the use temperature is resistant to high-low temperature; the calcium sulfate scale inhibitor can be used at 500 DEG C or less, and the operating concentration is 10 to 30*10<-6>; the scale inhibition effect is 98 to 99 percent after a product is stored for 9 to 12 months.

Description

technical field [0001] The application belongs to the technical field of ring reagents, and in particular relates to an environment-friendly, calcium sulfate scale inhibitor with good corrosion inhibition performance and a preparation method thereof. Background technique [0002] Scale inhibitor: It is a class of agents that can disperse insoluble inorganic salts in water, prevent or interfere with the precipitation and scaling of insoluble inorganic salts on metal surfaces, and maintain good heat transfer effects on metal equipment . [0003] Scale inhibitors can remove scale and prevent the formation of scale, improve heat exchange efficiency, reduce electric energy or reduce fuel consumption; water treatment can also reduce sewage discharge, improve water utilization, and generally save more than 60%, which is in line with my country's energy saving and emission reduction new policy. [0004] ATMP has good chelation, low limit inhibition and lattice distortion. It can...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/14C02F101/10
CPCC02F5/105C02F5/145C02F2101/101C02F2303/04C02F2303/08
Inventor 凌云凌天阳金可心夏戊君
Owner SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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