Phosphorus-free environmentally-friendly type imidazoline corrosion and scale inhibitor and preparation method thereof

A corrosion and scale inhibitor, type imidazoline technology, which is applied in the field of phosphorus-free and environmentally friendly imidazoline corrosion and scale inhibitors and its preparation, to achieve the effects of reducing sewage discharge, promoting passivation, and avoiding eutrophication

Inactive Publication Date: 2019-04-16
湖北兴发环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the organic corrosion and scale inhibitors used have a high phosphorus content. If the phosphorus content in the water is too high, it will cause serious water eutrophication problems.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Prepare non-phosphorus environmentally friendly imidazoline scale and corrosion inhibitor according to the above preparation method, including: water-soluble imidazoline 10g, polyepoxysuccinic acid 30g, water bath heating temperature 80-85℃, constant temperature stirring time 1.5h under acidic conditions, Prepare 100g of phosphorus-free environmentally friendly imidazoline corrosion and scale inhibitor according to the above method, the amount of each raw material: imidazoline-polyepoxysuccinic acid 30g, acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer 4g , Carboxylate-sulfonate-acrylate terpolymer 5g, sodium gluconate 15g, zinc sulfate heptahydrate 3g, sodium tetraborate 1g, sodium bromide 1g, the rest is distilled water.

[0027] Using "GBT 18175-2000 Water Treatment Agent Corrosion Inhibition Performance Determination Rotating Coupon Method" and "GBT 16632-2008 Water Treatment Agent Scale Inhibition Performance Measurement Calcium Carbonate Deposition Met...

Embodiment 2

[0029] Prepare non-phosphorus environmentally friendly imidazoline scale and corrosion inhibitor according to the above preparation method, in which: water-soluble imidazoline 10g, polyaspartic acid 30g, water bath heating temperature 80℃, constant temperature stirring time 2h under acidic conditions, according to the above method Prepare 100g of phosphorus-free environmentally friendly imidazoline corrosion and scale inhibitor, the amount of each raw material: imidazoline-polyepoxysuccinic acid 40g, acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer 6g, carboxylic acid Salt-sulfonate-acrylate terpolymer 6g, sodium gluconate 15g, zinc chloride 1g, sodium tetraborate 1g, sodium bromide 1g, the rest is distilled water.

[0030] Using "GBT 18175-2000 Water Treatment Agent Corrosion Inhibition Performance Determination Rotating Coupon Method" and "GBT 16632-2008 Water Treatment Agent Scale Inhibition Performance Measurement Calcium Carbonate Deposition Method" to evaluat...

Embodiment 3

[0032] Prepare the non-phosphorus environmentally friendly imidazoline corrosion and scale inhibitor according to the above preparation method, including: water-soluble imidazoline 10g, polyaspartic acid 43g, water bath heating temperature 85℃, constant temperature stirring time 2.5h under acidic conditions, according to the above Method: 100g of non-phosphorus environmentally friendly imidazoline corrosion and scale inhibitor was prepared, the amount of each raw material: imidazoline-polyepoxysuccinic acid 40g, acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer 6g, carboxylate Salt-sulfonate-acrylate terpolymer 6g, sodium gluconate 20g, zinc sulfate heptahydrate 2g, sodium tetraborate 1g, sodium bromide 1g, and the rest is distilled water.

[0033] Using "GBT 18175-2000 Water Treatment Agent Corrosion Inhibition Performance Determination Rotating Coupon Method" and "GBT 16632-2008 Water Treatment Agent Scale Inhibition Performance Measurement Calcium Carbonate Depos...

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Abstract

The invention relates to a phosphorus-free environmentally-friendly type imidazoline corrosion and scale inhibitor and a preparation method thereof. The phosphorus-free environmentally-friendly type imidazoline corrosion and scale inhibitor is prepared from, by weight, 30-40% of water-soluble imidazoline, 4-6% of nonionic terpolymer, 15-20% of sodium gluconate, 1-3% of dissolvable zinc salt, 0.5-1.5% of sodium tetraborate, 0.5-1.5% of sodium bromide and the rest distilled water. According to the phosphorus-free environmentally-friendly type imidazoline corrosion and scale inhibitor, the annualcorrosion rate is lower than 0.0500 mm/a, the scale inhibition rate reaches 98% or above, and the good scale and corrosion inhibition effects are achieved.

Description

Technical field [0001] The invention relates to the field of corrosion and scale inhibitors, in particular to a phosphorus-free environment-friendly imidazoline corrosion and scale inhibitor and a preparation method. Background technique [0002] With the gradual acceleration of the process of industrialization in my country, circulating cooling water accounts for more than 90% of the total industrial water. In the process of circulating cooling water, the soluble salt content in the water continues to increase, causing serious corrosion and scaling problems of pipeline equipment, which brings huge problems. Economic and resource loss. In order to effectively solve this problem, organic corrosion and scale inhibitors have been widely used in industrial circulating water systems. [0003] Most of the organic corrosion and scale inhibitors currently used have a high phosphorus content, and the high phosphorus content in the water body will cause serious water eutrophication problems....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12
CPCC02F5/125C02F2303/08C02F2303/22
Inventor 袁木平刘超宇李永刚刘舜陈子逸胡柏杨超龙
Owner 湖北兴发环保科技有限公司
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