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

Low-temperature antirust agent suitable for fluoride-free refrigeration industry, preparation method and application thereof

A technology of anti-rust agent and anti-rust additive, which is applied in the direction of additives, petroleum industry, lubricating composition, etc., can solve the problems of scrapping, high energy consumption, capillary blockage of refrigeration system, etc., and achieve reduction of residual amount, excellent anti-rust performance, Solve the effect of capillary clogging

Pending Publication Date: 2020-10-30
GUANGZHOU LUODE CHEM SCI & TRADING
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inorganic salts in the formula will not be lost with the volatilization of water, and a large amount will remain on the surface of the parts. If it is used in the fluorine-free refrigeration industry, it will not only consume a lot of energy, but also cause the capillary tube of the refrigeration system to be blocked or even scrapped after use.

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
  • Low-temperature antirust agent suitable for fluoride-free refrigeration industry, preparation method and application thereof
  • Low-temperature antirust agent suitable for fluoride-free refrigeration industry, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation of antirust additive in the embodiment is as follows:

[0037] 12 parts of diethanolamine and 12 parts of boric acid were mixed and stirred at 100°C for 3 hours, and the stirring speed was 100 rpm to obtain reactant B for later use; 25 parts of pure water and 20 parts of ternary polycarboxylic acid were weighed in proportion , 20 parts of diethanolamine, mixed and stirred for 1 hour at normal temperature, then added reactant B, mixed and stirred for 1 hour, finally added 11 parts of propylene glycol, mixed and stirred for 1 hour, and the stirring speed was 100 rpm to obtain the antirust additive . The parts are in mass fraction.

Embodiment 1-2

[0039] The preparation method of low temperature antirust agent in embodiment 1-2 is as follows:

[0040] Mix water, isopropanolamine, sebacic acid, isononanoic acid, tolyltriazole, diethylene glycol, propylene glycol methyl ether and anti-rust additives in sequence, and stir for 0.5 hours after each raw material is added, all Stir for 2 hours after adding the raw materials to obtain the low-temperature antirust agent suitable for the fluorine-free refrigeration industry. The amount of raw materials added is shown in Table 1.

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 belongs to the technical field of antirust agent preparation, and particularly discloses a low-temperature antirust agent suitable for the fluoride-free refrigeration industry, a preparation method and application thereof. The low-temperature antirust agent suitable for the fluoride-free refrigeration industry is prepared from the following raw materials by mass percentage: 30-40% ofwater, 10-20% of isopropanolamine, 5-15% of sebacic acid, 5-15% of isononanoic acid, 5-15% of methylbenzotriazole, 5-15% of diethylene glycol, 5-15% of propylene glycol monomethyl ether and 5-15% ofan antirust additive. According to the invention, diethylene glycol and propylene glycol monomethyl ether are used for replacing a surfactant of a traditional antirust agent, and excellent wettabilitycan be achieved at normal temperature, so that the antirust agent can be completely adhered to the surface of a part at normal temperature to form a compact protective film. The obtained antirust agent can exert excellent antirust performance at a low temperature (normal temperature in summer and autumn and 30-40DEG C in spring and winter) in actual use.

Description

technical field [0001] The invention belongs to the technical field of preparation of antirust agents, in particular to a low-temperature antirust agent suitable for fluorine-free refrigeration industry and its preparation method and application. Background technique [0002] Traditional water-soluble anti-rust agents are generally compounded with inorganic salts, surfactants, anti-rust additives, stabilizers, etc., but in actual use, they need to be heated above 60°C to exert good wettability. Adhere the corrosion inhibitor tightly to the surface of the part. At the same time, it needs to be used at high temperature to speed up the volatilization of water on the surface of parts after anti-rust treatment and reduce the risk of rust. The inorganic salt in the formula will not be lost with the volatilization of water, and a large amount will remain on the surface of the parts. If it is used in the fluorine-free refrigeration industry, it will not only consume a lot of energy...

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): C10M173/02C10M163/00C10N30/12C10N30/08
CPCC10M173/02C10M163/00C10M2215/042C10M2207/127C10M2207/126C10M2215/223C10M2207/046C10M2207/22C10M2201/087C10M2207/022
Inventor 罗伟森黎新浩罗国强黄金强张伟前
Owner GUANGZHOU LUODE CHEM SCI & TRADING
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