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

Composition for corrosion and scale inhibition and sterilization and application thereof

A technology of corrosion inhibition, scale inhibition and composition, which is applied in the field of corrosion inhibition, scale inhibition and sterilization composition, which can solve the problems of low dosage, difficulty in having good corrosion inhibition, scale inhibition and sterilization performance at the same time, and achieve optimal mitigation Eclipse effect

Active Publication Date: 2017-10-31
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of the existing water treatment chemicals that are difficult to have good corrosion inhibition, scale inhibition and bactericidal performance at the same time, and to provide a kind of water treatment agent with better corrosion inhibition, scale inhibition and bactericidal performance, and a lower dosage when used. water treatment chemicals

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
  • Composition for corrosion and scale inhibition and sterilization and application thereof
  • Composition for corrosion and scale inhibition and sterilization and application thereof
  • Composition for corrosion and scale inhibition and sterilization and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0048] Dosing chemicals into the test water as shown in Table 3 and conducting scale inhibition, corrosion inhibition and bactericidal performance tests, the specific test methods are as follows. The *mg / L recorded in Table 3 represents the effective (dry basis) content, and the tin salt is calculated according to tin ions.

[0049] Evaluation of Scale Inhibition Performance

[0050] Add chemicals to the test water, evaporate and concentrate in a constant temperature water bath at 80±1°C until the concentration is 5 times, and take samples to analyze the remaining Ca in the water 2+ At the same time, make a blank sample and calculate the scale inhibition rate. The calculation formula of scale inhibition rate is: scale inhibition rate = (C-C 0 ) / (nC 1 -C 0 )×100%, where,

[0051] C: remaining Ca in water 2+ Concentration (mg / L)

[0052] C 0 : Ca of the blank 2+ Concentration (mg / L)

[0053] C 1 : Ca in raw water 2+ Concentration (mg / L)

[0054] n: Concentration mul...

Embodiment 5

[0073] In order to simulate the scene, a dynamic simulation test was carried out. The dynamic simulation test method is carried out according to the chemical industry standard HG / T2160-91 of the People's Republic of China, and the control parameters are as follows.

[0074] Water quality: test raw water 1, see Table 1.

[0075] Concentration factor: Tower A 4.0±0.2 Tower B 4.0±0.2

[0076] pH: Tower A controls 8.0±0.2 Tower B controls 8.0±0.2

[0077] Velocity: 1.0m / s

[0078] Potion:

[0079] Tower A: take 4g effective content of 50% by weight of PBTCA, 8g of effective content of 50% by weight of HEDP, 2g sodium gluconate, 26.7g solid content of 30% by weight of copolymer 1, be dissolved in 57.8g of water, finally Add 1.5g of tin tetrachloride pentahydrate, make it fully dissolved, and shake well to obtain 100g of the medicament to be prepared. When the prepared agent is added to water at a concentration of 100 mg / L, the effective concentrations of PBTCA, HEDP, sodium gl...

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

PropertyMeasurementUnit
Corrosion rateaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of water treatment and discloses a composition for corrosion and scale inhibition and sterilization and an application thereof. The composition contains a water-soluble tin salt, an organic phosphonic acid, hydroxy carboxylate and a copolymer, wherein the copolymer comprises a structural unit provided by 2-acrylamide-2-methyl propane sulfonic acid; on the basis of the gross of the copolymer, the weight percent of the structural unit provided by the 2-acrylamide-2-methyl propane sulfonic acid is greater than or equal to 20%, wherein the weight ratio of the water-soluble tin salt to the organic phosphonic acid to the hydroxy carboxylate to the copolymer is 1:(1-20):(1-12):(1-20); and the weight of the water-soluble tin salt is calculated according to tin ions. The composition for corrosion and scale inhibition and sterilization has relatively good corrosion inhibition property, scale inhibition property and sterilization property and is relatively low in dosage in use.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a composition for corrosion inhibition, scale inhibition and sterilization and its application in the treatment of circulating cooling water. Background technique [0002] Long-term operation of circulating cooling water will cause problems of corrosion, scaling and bacterial growth, so corrosion inhibitors, scale inhibitors and bactericides need to be added separately. Research on non-toxic, highly efficient multifunctional water treatment agents is the direction of pharmaceutical research and development. Most petrochemical enterprises use composite corrosion and scale inhibitors. The more widely used formulas include phosphorus-based (composed of polyphosphate, polycarboxylic acid and copolymer, zinc salt, etc.), all-organic system (composed of organic phosphonic acid, polycarboxylic acid and copolymer, azole compounds with or without Zinc salt composition), etc. In the proce...

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
IPC IPC(8): C02F5/14C02F5/10
CPCC02F5/105C02F5/145C02F2303/04C02F2303/08C02F2303/22
Inventor 魏新郦和生张化冰张春原
Owner CHINA PETROLEUM & CHEM CORP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com