Preparation method of oil-soluble organic molybdenum friction modifier

A technology of friction modifier and organic molybdenum, which is applied in the direction of additives, petroleum industry, lubricating composition, etc., can solve the problems of not being suitable for large-scale industrial production, high production cost, and not easy to filter, etc., and achieve good oil solubility and anti-oxidation ability, low production cost, good wear reduction and anti-wear properties

Inactive Publication Date: 2020-07-17
XINXIANG RICHFUL LUBE ADDITIVE CO LTD
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. The above synthesis method requires the use of sodium hydrosulfide, hydrochloric acid, sulfuric acid, methanol, toluene and other reagents. The above reagents or their by-products may be brought into the product, and corrosion problems may occur when used as lubricant additives, and the production process safety issues

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
  • Preparation method of oil-soluble organic molybdenum friction modifier
  • Preparation method of oil-soluble organic molybdenum friction modifier

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Such as figure 1 As shown, the present invention provides a method for preparing an oil-soluble organic molybdenum friction modifier, including:

[0038] S1. Stir water, molybdenum source, dialkylamine mixture and diluent oil evenly to form a composite solution, and keep the temperature of the composite solution at 5-14°C;

[0039] The molybdenum source includes one or more of ammonium heptamolybdate, sodium molybdate and molybdenum trioxide, and preferably the molybdenum source is ammonium heptamolybdate;

[0040] The dialkylamine mixture is a mixture of diisooctylamine and isomeric ditridecylamine or a mixture of diphenylamine and isomeric ditridecaamine; the molar ratio of diisooctylamine to isomeric ditridecylamine is (1: 5)-(5:1), the molar ratio of diphenylamine to isotridecylamine is (1:5)-(5:1).

[0041] The diluent oil is naphthenic base oil or high boiling point aromatic solvent oil, the aromatic hydrocarbon content of the naphthenic base oil is above 40%, and the cl...

Example Embodiment

[0052] Example 1:

[0053] The invention provides a method for preparing an oil-soluble organic molybdenum friction modifier, including:

[0054] Add 17.56g of ammonium heptamolybdate, 36g of water, 12.08g of diisooctylamine, 19.01g of isotridecylamine, and 40g of naphthenic base oil into a 500mL four-necked flask equipped with mechanical stirring, thermometer and reflux condenser. , Stir evenly until it is completely dissolved; then add 15.23g carbon disulfide dropwise at 10°C, after the dropwise addition, heat up to 90°C, reflux for 8h; after the reaction, add 120# solvent oil 100g, stir for 5min, let stand for 20min, divide The lower water phase is discharged; then the upper oil phase is distilled under reduced pressure, the vacuum degree is -0.095MPa, the temperature is gradually increased to 130°C, the temperature is kept for 4h, and the temperature is lowered to obtain a brown oily product.

[0055] It is measured that its Mo content is 10.02%, S content is 10.99%, mechanical ...

Example Embodiment

[0056] Example 2:

[0057] The invention provides a method for preparing an oil-soluble organic molybdenum friction modifier, including:

[0058] Add 17.56g of ammonium heptamolybdate, 36g of water, 12.08g of diisooctylamine, 19.01g of isotridecylamine, and 40g of high-boiling aromatic solvent oil into a 500mL four-necked flask equipped with mechanical stirring, thermometer and reflux condenser. , Stir evenly until completely dissolved; then add 19g of carbon disulfide dropwise at 12°C, after the dropwise addition, heat up to 95°C, reflux for 10h; after the reaction, add 120g of 120# solvent oil, stir for 10min, stand for 30min, separate The lower water phase; then the upper oil phase is distilled under reduced pressure, the vacuum degree is -0.095MPa, the temperature is gradually increased to 120°C, the temperature is kept for 6h, and the temperature is lowered to obtain a brown oily product.

[0059] The measured Mo content is 10.15%, S content is 11.20%, and mechanical impurities...

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 an oil-soluble organic molybdenum friction modifier, wherein the preparation method comprises the steps: uniformly stirring water, a molybdenum source,a dialkylamine mixture and diluent oil to form a composite solution; dropwise adding carbon disulfide into the composite solution, heating to a preset temperature, and carrying out a reflux reaction;after the reaction is finished, adding solvent oil for extraction, standing, and separating out a water phase; and carrying out vacuum-pumping reduced pressure distillation on the upper-layer oil phase to obtain the organic molybdenum friction modifier. According to the preparation method, inorganic and organic reagents such as sodium hydrosulfide, hydrochloric acid, sulfuric acid, methyl alcoholand methylbenzene are not used, equipment under pressure is not needed, the production cost is low, and the production process is safe; the preparation method disclosed by the invention does not needcomplicated processes such as water washing and filtering, adopts solvent oil to extract the product after synthesis is finished, is simple in process and strong in operability and repeatability, andis suitable for large-scale industrial production; meanwhile, the separated water phase and the solvent oil recovered by reduced pressure distillation can be recycled, and basically no three wastes are generated.

Description

technical field [0001] The invention relates to the technical field of organic molybdenum friction modifiers, in particular to a preparation method of an oil-soluble organic molybdenum friction modifier. Background technique [0002] Organic molybdenum friction modifiers are mainly divided into two categories: molybdenum dialkyldithiophosphate (MoDDP) and molybdenum dialkyldithiocarbamate (MoDTc); among them, molybdenum dialkyldithiophosphate contains Phosphorus can cause exhaust gas catalyst poisoning. With the increasing requirements for energy saving, emission reduction and environmental protection, the dosage is gradually decreasing; molybdenum dialkyl dithiocarbamate has anti-wear, anti-wear, anti-oxidation, Low corrosion and other advantages, widely used in internal combustion engine oil, gear oil, hydraulic oil, automatic transmission oil and other lubricating oil products. [0003] Various methods for preparing molybdenum dialkyldithiocarbamate have been disclosed i...

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): C10M135/18C10M169/04C10M177/00C10N30/06C10N30/10
CPCC10M135/18C10M169/04C10M177/00C10M2219/068C10M2227/066C10M2203/1065C10M2203/10
Inventor 王世俊徐坤范金凤
Owner XINXIANG RICHFUL LUBE ADDITIVE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap