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Antirust agent and preparing method thereof

A technology of anti-rust agent and catalyst, which is applied in the direction of additives, petroleum industry, lubricating composition, etc. It can solve the problems of high price and unsatisfactory long-term anti-rust and anti-corrosion effect, and achieve long anti-rust validity period and good cleaning performance , excellent overall performance

Active Publication Date: 2017-12-01
WUHAN POLYTECHNIC UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the anti-rust agent products produced by foreign additive companies can achieve better anti-rust effect, but because they are monopolized by foreign companies, the price is expensive, while the anti-rust agent products produced by domestic additive manufacturers are mainly concentrated in petroleum sulfonate and synthetic sulfonic acid. Rust inhibitor products such as salt, alkenyl succinic acid, alkenyl succinate and sodium nitrite, etc., have unsatisfactory long-term anti-rust and anti-corrosion effects

Method used

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  • Antirust agent and preparing method thereof
  • Antirust agent and preparing method thereof
  • Antirust agent and preparing method thereof

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preparation example Construction

[0030] The present invention also proposes a method for preparing the above-mentioned antirust agent, wherein the method for preparing the antirust agent includes the following steps:

[0031] Step S10, put the fatty acid into the reactor, heat up and stir;

[0032] In the industrial production process, the reactor can be equipped with reaction devices such as kettle reactors and stirring devices; when conducting experiments in the laboratory, it can be built with experimental equipment such as three-necked flasks, condenser tubes, and stirring rods. A simple reaction device to achieve the purpose of heating and stirring the reaction raw materials.

[0033] Step S20, when the temperature rises to the first preset temperature, add the alcohol amine compound and the esterification reaction catalyst, and open the condensation reflux device;

[0034] Step S30, when the temperature rises to the second preset temperature, add boric acid and continue to raise the temperature;

[00...

specific Embodiment 1

[0041] (1) Take octanoic acid, triethanolamine, boric acid and tetra-n-butyl titanate, wherein, the molar ratio of octanoic acid, triethanolamine and boric acid is 5:2:1, and the quality of tetra-n-butyl titanate is octanoic acid, triethanolamine and 1.0% of the total mass of boric acid; then octanoic acid is dropped into a three-necked flask, and the heating device and the stirring device are opened to heat up and stir;

[0042] (2) When the temperature rises to 75°C, add the weighed triethanolamine and tetra-n-butyl titanate, and open the water pipe connected to the condensation pipe to condense and reflux;

[0043] (3) When the temperature rose to 105°C, add the boric acid weighed and continue to heat up;

[0044] (4) When the temperature rises to 135°C, close the water pipe connected to the condensation pipe, and stop heating when the temperature continues to rise to 139°C, and keep it warm for 30 minutes;

[0045] (5) After the heat preservation is completed, turn on the...

specific Embodiment 2

[0046] (2) Take octanoic acid, triethanolamine, boric acid and tetra-n-butyl titanate, wherein, the molar ratio of octanoic acid, triethanolamine and boric acid is 2:1:1, and the quality of tetra-n-butyl titanate is octanoic acid, triethanolamine and 0.5% of the total mass of boric acid; then octanoic acid is dropped into a three-necked flask, and the heating device and the stirring device are opened to heat up and stir;

[0047] (2) When the temperature rises to 75°C, add the weighed triethanolamine and tetra-n-butyl titanate, and open the water pipe connected to the condensation pipe to condense and reflux;

[0048] (3) When the temperature rose to 105°C, add the boric acid weighed and continue to heat up;

[0049] (4) When the temperature rises to 135°C, close the water pipe connected to the condensation pipe, and stop heating when the temperature continues to rise to 139°C, and keep it warm for 30 minutes;

[0050] (5) After the heat preservation is completed, turn on the s...

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Abstract

The invention discloses an antirust agent and a preparing method thereof. The antirust agent comprises fatty acid, alcohol amine compounds, boric acid and a catalyst; the molar ratio of the fatty acid to the alcohol amine compounds to the boric acid is 5:2:1-1:1:1. The preparing method of the antirust agent comprises the steps that fatty acid is put into a reactor, and heating stirring is carried out; when the temperature rises to the first preset temperature, the alcohol amine compounds and the catalyst are added, a condensate backflow device is started; when the temperature rises to the second preset temperature, boric acid is added, and temperature rising is continuously carried out; when the temperature rises to the third preset temperature, the condensation backflow device is closed, the temperature continuously rises to the fourth preset temperature, heating is stopped, and heat preservation is carried out; after heat preservation is ended, cooling is carried out. The prepared antirust agent is long in antirust effective period, and has the good anti-wear anti-friction capacity, hydrolytic stability and biodegradability.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to an antirust agent and a preparation method thereof. Background technique [0002] Since metal parts are easy to rust during production, processing and transportation, antirust agents are usually used to form a thin film on the metal surface to avoid metal corrosion caused by contact with moisture or other chemical components. At present, the anti-rust agent products produced by foreign additive companies can achieve better anti-rust effect, but because they are monopolized by foreign companies, the price is expensive, while the anti-rust agent products produced by domestic additive manufacturers are mainly concentrated in petroleum sulfonate and synthetic sulfonic acid. Rust inhibitor products such as salt, alkenyl succinic acid, alkenyl succinate and sodium nitrite have unsatisfactory long-term anti-rust and anti-corrosion effects. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/14C10M159/12C10N30/12C10N30/06
CPCC10M159/12C10M2227/06C10N2020/081C10N2030/06C10N2030/12C10N2030/66C23F11/14
Inventor 胡文云
Owner WUHAN POLYTECHNIC UNIVERSITY
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