A purification method for waste lubricating oil classification and impurity removal
A technology of waste lubricating oil and oil products, which is applied in the direction of lubricating compositions, etc., can solve the problems of adsorption and excessive consumption, accelerated asphalt detachment, poor quality of recycled oil products, etc., and achieve the effect of simple process, strong operability and high quality
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0021] Using waste lubricating oil from small cars as raw material, heat the waste lubricating oil to 80°C through the dilution and degumming process, add n-heptane at a ratio of 1:0.5 to the volume of the oil agent, and then add CaCl2 equivalent to 5% of the mass of the waste lubricating oil, Stir for 15 minutes, centrifuge to remove gum and asphalt. Add alkalized particles with a particle size of 60-100 mesh to the upper-stage filtrate through the alkalization degumming acid process at a liquid-solid volume ratio of 1:0.1, stir rapidly for 5 minutes, and then centrifugally filter. Add 50-100-mesh high-strength magnetic particles to the upper-stage filtrate at a liquid-solid volume ratio of 1:0.3 through the magnetic desquamation process, stir rapidly for 5 minutes, and centrifugally filter. Through the carbon silica gel decolorization process, the upper-stage filtrate is filtered through a 1-10um activated carbon silica gel layer to obtain solvent-containing purified oil. Fi...
Embodiment 2
[0026] Using waste lubricating oil from motor vehicles as raw material, heat the waste lubricating oil to 50°C through the dilution and degumming process, add n-heptane at a ratio of 1:1.2 to the volume of the oil agent, and then add CaCl equivalent to 1% of the mass of the waste lubricating oil 2 , stirred for 5 minutes, and centrifuged to remove gum and asphalt. Add alkalized particles with a particle size of 60-100 mesh to the upper-stage filtrate through the alkalization degumming acid process at a liquid-solid volume ratio of 1:0.1, stir rapidly for 15 minutes, and then centrifugally filter. Add 50-100-mesh high-strength magnetic particles to the upper-stage filtrate at a liquid-solid volume ratio of 1:0.1 through the magnetic desquamation process, stir rapidly for 15 minutes, and centrifugally filter. Through carbon silica gel decolorization, the filtrate of the upper stage is filtered through a 1-10um activated carbon silica gel layer to obtain a purified oil containing...
Embodiment 3
[0031] Using tractor waste lubricating oil as raw material, heat the waste lubricating oil to 60°C through the dilution and degumming process, add n-heptane at a ratio of 1:1 to the volume of the oil agent, and then add CaCl equivalent to 3% of the mass of the waste lubricating oil 2 , stirred for 10 minutes, and centrifuged to remove gum and asphalt. Add alkalized particles with a particle size of 60-100 mesh to the upper-stage filtrate through the alkalization degumming acid process at a liquid-solid volume ratio of 1:0.2, stir rapidly for 10 minutes, and then centrifugally filter. Add 50-100-mesh high-strength magnetic particles to the upper-stage filtrate at a liquid-solid volume ratio of 1:0.2 through the magnetic desquamation process, stir rapidly for 10 minutes, and centrifugally filter. Through the carbon silica gel decolorization process, the upper-stage filtrate is filtered through a 1-10um activated carbon silica gel layer to obtain solvent-containing purified oil. ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size (mesh) | aaaaa | aaaaa |
| particle size (mesh) | aaaaa | aaaaa |
| recovery rate | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More