Method for preparing nano copper lubricating oil additive

A lubricating oil additive, nano-copper technology, applied in additives, lubricating compositions, petroleum industry, etc., can solve the problems of difficult speed control, uneven mixing, wide range of nano-copper particle size, etc. Efficiency, time saving effect in drying process

Active Publication Date: 2008-06-18
PETROCHINA CO LTD +1
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the problems in the prior art that the speed of the nano-copper reduction reaction process is difficult to control, the mixing is uneven, and the particle size range of the nano-copper is wide. The need for mixing

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
  • Method for preparing nano copper lubricating oil additive
  • Method for preparing nano copper lubricating oil additive
  • Method for preparing nano copper lubricating oil additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: In figure 1 in the process shown

[0022] (1) Weigh 3.133kg of CuSO 4 ·5H 2 O powder, dissolve and dilute to 25L with normal temperature industrial water (about 30°C), and filter impurities to prepare a CuSO4 solution with a concentration of 0.50mol / L; weigh 12.5kg of hydrazine hydrate, and use normal temperature industrial water (about 30°C) Dissolve and dilute to 25L to prepare a hydrazine hydrate reducing agent solution with a concentration of 8.5mol / L; weigh 7.5kg of liquid sulfuric acid, dissolve it with petroleum ether (distillation range 60-90°C) at normal temperature (about 30°C) and Dilute to 25L and prepare a modified extractant solution with a concentration of 0.846mol / L.

[0023] (2) Turn on three centrifugal pumps at the same time, the copper salt solution and reducing solution enter the supergravity machine, the modified extract directly enters the reaction kettle, adjust the rotameter, and control the flow rate of the three materials to be 1...

Embodiment 2

[0027] (1) Take 2.5kg of copper acetate powder, dissolve and dilute it to 25L with normal temperature industrial water (about 30°C), and filter impurities to prepare a copper acetate solution with a mass percentage concentration of 0.5mol / L; weigh 6.25kg of Hydrazine hydrate, dissolved with normal temperature industrial water (about 30°C) and diluted to 25L to prepare a hydrazine hydrate reducing agent solution with a concentration of 4.25mol / L; weigh 3.75kg of liquid sulfuric acid, and use Petroleum ether (distillation range 60-90°C) was dissolved and diluted to 25 L to prepare a modified extractant solution with a concentration of 0.423 mol / L.

[0028] (2) Turn on 3 centrifugal pumps at the same time, the copper salt solution and the reducing solution enter the supergravity machine, the modified extract directly enters the reaction kettle, adjust the rotameter, and control the flow rate of the three materials to be 160L / h for the copper salt solution and the reducing agent T...

Embodiment 3-7

[0032] The basic steps are the same as in Example 1, and the present invention is implemented under different process conditions.

[0033]

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
The average particle sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to view more

Abstract

The present invention provides a method of preparing nanometer copper lubricant additive by a high gravity technology. Copper salt solution and reducer solution are processed for the liquid phase reduction reaction of cupric salt inside a high gravity machine, the solution after the reaction and extractant are mixed inside a static mixer and then stirred inside a reaction vessel for complete mixing reaction and the surface modification during the process of extraction and to be processed for standing and being layered, oil phase at the upper layer is obtained for pressure reduction and distillation to obtain a final product. The reaction speed of the method of the present invention is fast; the repeat reproducibility of the products between batches is good; the nanometer copper lubricant additive is prepared directly by a wet method, which does not require vacuum drying for preparing for nanometer copper dry powder, avoids the occurrence of agglomeration, simplifies the technical flow and has high product quality, high yield and short production period; the granularity of prepared nanometer copper powder reaches the nanometer grade (is less than 20nm) and is distributed quite narrowly, and the nanometer copper powder has very good dispersion stability in the lubricant.

Description

technical field [0001] The invention relates to a method for preparing nano-copper lubricating oil additive by adopting supergravity technology Background technique [0002] Hypergravity refers to the application technology of the force on matter to study the physical and chemical changes of matter in a hypergravity environment in an environment much greater than the earth's gravitational acceleration (9.8m / s2). As a high-tech, supergravity technology has great application prospects in industry. In a hypergravity environment, the molecular diffusion and interphase transfer processes between molecules of different sizes are much faster than those under a conventional gravity field. Flow contact occurs in porous media or channels in the environment, and the huge shear force tears the liquid into liquid films, liquid filaments and droplets on the micron to nanoscale, resulting in huge and rapidly renewed phase interfaces, enabling interphase mass transfer The rate is 1 to 3 o...

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): C10M125/04
Inventor 陈建峰王会东张鹏远杨克初广文岳宗节邹海魁郑来昌杨海健王晓波秦赢柏荣
Owner PETROCHINA 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