Unlock instant, AI-driven research and patent intelligence for your innovation.

Allyloxy polyether carboxylic acids antisludging agent and method for preparing the same

An allyloxy polyether carboxylic acid, allyloxy technology, which is applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc., can solve problems such as eutrophication of water bodies, Achieving high-efficiency inhibition and good compatibility

Active Publication Date: 2012-03-07
JIANGSU JIANGHAI CHEM +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its structure still contains nutrients such as N and S, and long-term large-dose use will still cause eutrophication of water bodies.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Allyloxy polyether carboxylic acids antisludging agent and method for preparing the same
  • Allyloxy polyether carboxylic acids antisludging agent and method for preparing the same
  • Allyloxy polyether carboxylic acids antisludging agent and method for preparing the same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] Example 1: at N 2 Add 100g allyloxypolyethoxy ether, 80gNaOH in the four-neck flask of protection, under N 2 Alkaline at 60°C for 1 h under protection to obtain allyloxypolyethoxy sodium. Take by weighing 100g allyloxy polyethoxy sodium, 120g chloroacetic acid, 80g NaOH, in N 2 Carboxymethylation was carried out at 80°C under protection for 6 hours to obtain a mixture of sodium allyloxypolyethoxycarboxylate and allyloxypolyethoxycarboxylic acid. in N 2 Under protection, the mixture of 100g allyloxy polyethoxy sodium carboxylate and allyloxy polyethoxy carboxylic acid was dissolved in 150g distilled water, while 80g maleic anhydride (dissolved in 150g distilled water) and 5g Ammonium superphosphate (dissolved in 50g distilled water), the temperature was kept at 70°C during the dropwise addition, and the temperature was raised to 80°C after the dropwise addition was completed, and the reaction was continued for 3 hours with heat preservation and stirring. Viscous tran...

example 2

[0023] Example 2: at N 2 Add 150g allyloxypolypropoxy ether, 100gNaOH in the four-neck flask of protection, under N 2 Alkaline at 60°C for 2h under protection to obtain allyloxypolypropoxysodium. Take by weighing 100g allyloxy polypropoxy sodium, 200g chloropropionic acid, 90g NaOH, in N 2 Carboxymethylation was carried out at 60°C under protection for 8 hours to obtain a mixture of sodium allyloxypolypropoxycarboxylate and allyloxypolypropoxycarboxylate. in N 2Under protection, the mixture of 100g allyloxy polypropoxy sodium carboxylate and allyloxy polypropoxy carboxylic acid was dissolved in 150g distilled water, while 50g maleic anhydride (dissolved in 100g distilled water) and 5g persulfuric acid were added dropwise. Potassium (dissolved in 50g distilled water), keep the temperature at 70°C during the dropwise addition, raise the temperature to 90°C after the dropwise addition, continue to keep warm and stir for 5h, after cooling down to room temperature, the obtained ...

example 3

[0025] Example 3: at N 2 Add 150g allyloxypolyethoxy ether, 90gNaOH in the four-neck flask of protection, under N 2 Alkaline at 60°C for 1 h under protection to obtain allyloxypolyethoxy sodium. Weigh 200g allyloxypolyethoxy sodium, 150g chloroacetic acid, 100gNaOH, in N 2 Carboxymethylation was carried out at 80°C under protection for 6 hours to obtain a mixture of sodium allyloxypolyethoxycarboxylate and allyloxypolyethoxycarboxylic acid. in N 2 Under protection, the mixture of 160g allyloxy polyethoxy sodium carboxylate and allyloxy polyethoxy carboxylic acid was dissolved in 150g distilled water, while 100g N, N-dimethylacrylamide (dissolving In 250g distilled water) and 5g ammonium superphosphate (dissolved in 40g distilled water), the temperature was kept at 60°C during the dropwise addition, and the temperature was raised to 100°C after the dropwise addition was completed, and the reaction was continued for 5 hours with insulated stirring, and after cooling down to r...

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 invention relates to an allyloxy polyether carboxylic scale inhibitor (AOEC) and a preparation method, especially a novel green biodegradable AOEC with stable-performance and without phosphor, sulfur and nitrogen and the preparation method thereof. The formula of the anti-sludge inhibitor is as below, wherein, A is a repeated structure cell produced through the free radical copolymerization of vinyl-containing unsaturated double linkage monomer and allyloxy polyether carboxylic acid or carboxylic acid natrium monomer; R1 is H or C1-C4 low carbon alkyl; G is -CH2-or -CHCH3-; R2 is CH2CH2Ok or CH2CH3Ok; the value of K is 1 to 100, and the value of P is 1 to 15; R3 is H, F, CI, Br or I; M is H<+>, NH4<+>, K<+> or Na<+>; a and b represent the degree of polymerization, wherein, a is 1 to 5000 and b is 1 to 5000.

Description

technical field [0001] The invention relates to the preparation of a novel green allyloxy polyether carboxylic acid scale inhibitor with stable performance, phosphorus-free, nitrogen-free, sulfur-free, and biodegradable, which belongs to the scale inhibitor preparation technology in the technical field of water treatment and is applicable to In industrial cooling water circulation system. Background technique [0002] With the intensification of the global water resource crisis, protecting water resources and saving water has become a worldwide consensus. The development of high-performance and multi-functional water treatment agents is conducive to saving water, reducing pollution and protecting the environment. In particular, people have realized that the use of phosphorus-containing scale inhibitors has caused a large number of bacteria and algae and eutrophication of water bodies. Therefore, the use of phosphorus-free or low-phosphorus water treatment agents is attracti...

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 Patents(China)
IPC IPC(8): C02F5/10
Inventor 周钰明杜琨
Owner JIANGSU JIANGHAI CHEM