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

Preparation method of phosphorus-free composite corrosion and scale inhibitor

A corrosion and scale inhibitor, composite technology, applied in the field of water treatment, can solve the problems that the preparation of slow-release scale and inhibitor has no reference significance, the use of corrosion and scale inhibitor is large, and the application range is narrow, so as to achieve storage resistance , no pollution to the environment and long service life

Active Publication Date: 2016-08-24
广州市清顺环保科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that the existing corrosion and scale inhibitors have a large amount of use, pollute the environment, and the preparation method of the corrosion and scale inhibitors has a narrow application range, and there is no reference value for the preparation of slow-release scale inhibitors with new components, etc., The invention provides a method for preparing a phosphorus-free composite corrosion and scale inhibitor. The corrosion and scale inhibitor components of the invention do not contain organic or inorganic phosphorus, and are a composite type of high molecular polymer and inorganic salt. Corrosion and scale inhibitor, the present invention finally obtains an environment-friendly corrosion inhibitor with good corrosion inhibition effect and storage resistance by rationally designing the mixing sequence of various substances and controlling the temperature, stirring speed and time during the preparation process

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

[0025] A phosphorus-free composite corrosion and scale inhibitor, its composition and the mass parts of each component are: 25 parts of calcium tartrate, 20 parts of stearyl glucoside, 10 parts of benzotriazole, 4 parts of bis( Hydroxymethyl) imidazolidinyl urea, 20 parts methyl silanol, 10 parts allantoin, 15 parts hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 10 parts glycerol polymethacrylate, 65 parts water.

[0026] The preparation method of above-mentioned a kind of non-phosphorus composite type corrosion and scale inhibitor, its steps are:

[0027] (a) Add sodium acryloyldimethyltaurate, water and initiator into the reaction bottle and stir evenly, then heat to 85°C, wherein the initiator is sodium persulfate, sodium acryloyldimethyltaurate, The mass ratio of water and sodium persulfate is 50: 40: 1;

[0028] (b) Add hydroxyethyl acrylate to the solution in step (a) for polymerization to obtain a hydroxyethyl acrylate / sodium acryloyldimethyl taurate...

Embodiment 2

[0043] A phosphorus-free composite corrosion and scale inhibitor, its composition and the mass parts of each component are: 20 parts of calcium tartrate, 15 parts of stearyl glucoside, 8 parts of benzotriazole, 3 parts of bis( Hydroxymethyl) imidazolidinyl urea, 15 parts methyl silanol, 15 parts allantoin, 12 parts hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 8 parts glycerol polymethacrylate, 60 parts water.

[0044] The preparation method of above-mentioned a kind of non-phosphorus composite type corrosion and scale inhibitor, its steps are:

[0045] (a) Add sodium acryloyl dimethyl taurate, water and initiator into the reaction bottle and stir evenly, then heat to 80°C, wherein the initiator is tert-butyl hydroperoxide, acryloyl dimethyl taurine The mass ratio of sodium bicarbonate, water and tert-butyl hydroperoxide is 55: 40: 1;

[0046] (b) Add hydroxyethyl acrylate to the solution in step (a) for polymerization to obtain a hydroxyethyl acrylate / sod...

Embodiment 3

[0053] A phosphorus-free composite corrosion and scale inhibitor, its composition and the mass parts of each component are: 30 parts of calcium tartrate, 10 parts of stearyl glucoside, 12 parts of benzotriazole, 5 parts of bis( Hydroxymethyl) imidazolidinyl urea, 17 parts methyl silanol, 13 parts allantoin, 14 parts hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 9 parts glycerol polymethacrylate, 70 parts water.

[0054] The preparation method of above-mentioned a kind of non-phosphorus composite type corrosion and scale inhibitor, its steps are:

[0055] (a) Add sodium acryloyldimethyltaurate, water and initiator into the reaction bottle and stir evenly, then heat to 90°C, wherein the initiator is sodium persulfate, sodium acryloyldimethyltaurate, The mass ratio of water and sodium persulfate is 60: 35: 1;

[0056] (b) Add hydroxyethyl acrylate to the solution in step (a) for polymerization to obtain a hydroxyethyl acrylate / sodium acryloyldimethyl taurate ...

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 discloses a preparation method of a phosphorus-free composite corrosion and scale inhibitor, belonging to the field of water treatment. The corrosion and scale inhibitor consists of 20-30 parts of calcium tartrate, 10-20 parts of octadecyl glucoside, 8-12 parts of benzotriazole, 3-5 parts of bis(hydroxymethyl) imidazolidinyl urea, 15 parts ‑20 parts methylsilanol, 10‑15 parts allantoin, 12‑15 parts hydroxyethyl acrylate / sodium acryloyldimethyl taurate copolymer, 8‑10 parts glycerol polymethacrylate and 60‑ Composed of 70 parts of water, the corrosion and scale inhibitor of the present invention does not contain organic or inorganic phosphorus. It is a composite corrosion and scale inhibitor composed of high molecular polymer and inorganic salt. The invention has the advantages of no harm to human body and crops, etc., and is an environment-friendly corrosion inhibitor; the preparation method of the invention has the advantages of simple process, reasonable design, mild conditions and easy operation, and is suitable for industrial application.

Description

technical field [0001] The invention belongs to the field of water treatment, and more specifically relates to a preparation method of a phosphorus-free composite corrosion and scale inhibitor. Background technique [0002] my country is a country seriously short of water resources. There are 18 provinces, municipalities and autonomous regions whose per capita water resources are lower than the 2000 m per capita water resources considered by the United Nations Sustainable Development Commission. 3 , less than 1000 m in 10 provinces, municipalities and autonomous regions 3 The minimum survival line, the serious shortage of water resources will definitely affect the normal production and life, affect the economic development, circulating cooling water is a large industrial water. Due to the increasing shortage of fresh water resources, industrial cooling water treatment agents are getting more and more attention. Organic phosphonic acid is a type of water treatment agent wid...

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): C02F5/10C02F5/12
CPCY02W10/37
Inventor 戴东平戴晓升
Owner 广州市清顺环保科技有限公司