CN106010766A - Regeneration method of waste lubricating oil - Google Patents

Regeneration method of waste lubricating oil Download PDF

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Publication number
CN106010766A
CN106010766A CN201610380823.0A CN201610380823A CN106010766A CN 106010766 A CN106010766 A CN 106010766A CN 201610380823 A CN201610380823 A CN 201610380823A CN 106010766 A CN106010766 A CN 106010766A
Authority
CN
China
Prior art keywords
lubrication oil
lubricating oil
waste lubrication
waste
decompression distillation
Prior art date
Application number
CN201610380823.0A
Other languages
Chinese (zh)
Inventor
张淞
Original Assignee
成都科创诺商贸有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 成都科创诺商贸有限公司 filed Critical 成都科创诺商贸有限公司
Priority to CN201610380823.0A priority Critical patent/CN106010766A/en
Publication of CN106010766A publication Critical patent/CN106010766A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M175/00Working-up used lubricants to recover useful products ; Cleaning
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M175/00Working-up used lubricants to recover useful products ; Cleaning
    • C10M175/0016Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents

Abstract

The invention discloses a regeneration method of waste lubricating oil. The method includes: (1) subjecting waste lubricating oil to sedimentation dewatering; (2) conducting first reduced pressure distillation on the waste lubricating oil subjected to sedimentation dewatering; (3) adding isopropanol, isobutanol and ethylenediamine into the waste lubricating oil subjected to the first reduced pressure distillation, then conducting constant temperature reflux at 30-60DEG C for 0.5-2h, and then performing filtering to obtain a mixed solution; and (4) subjecting the mixed solution to second reduced pressure distillation at 30-60DEG C till the alcohol therein is completely removed, thus obtaining regenerated lubricating oil.

Description

A kind of renovation process of waste lubrication oil
Technical field
The present invention relates to the technical field of lubricating oil, particularly to the technical field of waste lubrication oil regeneration.
Background technology
Lubricating oil is used in all kinds automobile, plant equipment reducing friction, protection machinery and the liquid of workpiece or semisolid lubricants, act primarily as lubrication, supplement heat rejecter, antirust, clean, seal and buffering etc. acts on.Lubricating oil can be mixed into impurity, moisture during using, and often it is in the condition of high temperature, therefore physics, chemical reaction can be produced after long-time use, various oxide, greasy filth, carbon slag, carboxylic acid etc. are accumulated in lubricating oil, its lubricity is made to decline, lubricant effect cannot be reached again, become waste lubrication oil.
Summary of the invention
It is an object of the invention to propose the renovation process of a kind of simple efficient waste lubrication oil.
Technical scheme is as follows:
The renovation process of a kind of waste lubrication oil, comprises the following steps:
(1) waste lubrication oil is carried out deposition dehydrating;
(2) waste lubrication oil after deposition dehydrating is carried out the first decompression distillation;
(3) waste lubrication oil after the first decompression distillation adds after isopropanol, isobutanol, ethylenediamine constant temperature backflow 0.5 ~ 2h at 30 ~ 60 DEG C, is filtrated to get thereafter mixed liquor;
(4) mixed liquor is carried out at 30 ~ 60 DEG C the second decompression distillation, to the lubricating oil after i.e. being regenerated after wherein alcohols is removed completely.
Preferably: described isopropanol is 2 ~ 3:1 with the mass ratio of isobutanol.
It is also preferred that: the quality of described ethylenediamine is the 1% ~ 1.5% of described waste lubrication oil quality.
It is also preferred that: the quality of described isopropanol is 0.5 ~ 5:1 of described waste lubrication oil quality.
It is also preferred that: described in described step (2), the temperature of the first decompression distillation is 200 ~ 300 DEG C, and vacuum is 30 ~ 40mmHg.
Waste lubrication oil is regenerated with flocculant by the present invention by solvent, it is not necessary to the processing step that traditional distillation, acid treatment or clay treatment etc. are complicated, and the most efficiently, the solvent used in process can also reclaim further, and resource utilization is high, environmental protection.
Detailed description of the invention
Embodiment 1
500kg waste lubrication oil is carried out deposition dehydrating, thereafter 200 DEG C, vacuum be carry out under 30mmHg decompression distillation, lubricating oil after decompression distillation adds after 250kg isopropanol, 130kg isobutanol, 5kg ethylenediamine constant temperature backflow 2h at 30 DEG C, contaminant filter is obtained mixed liquor, thereafter at 60 DEG C, decompression distillation is again carried out, to the lubricating oil after i.e. being regenerated after wherein alcohols is removed completely.
Embodiment 2
500kg waste lubrication oil is carried out deposition dehydrating, thereafter 300 DEG C, vacuum be carry out under 40mmHg decompression distillation, lubricating oil after decompression distillation adds after 2000kg isopropanol, 700kg isobutanol, 7.5kg ethylenediamine constant temperature backflow 0.5h at 60 DEG C, contaminant filter is obtained mixed liquor, thereafter at 60 DEG C, decompression distillation is again carried out, to the lubricating oil after i.e. being regenerated after wherein alcohols is removed completely.
Embodiment 3
100kg waste lubrication oil is carried out deposition dehydrating, thereafter 300 DEG C, vacuum be carry out under 40mmHg decompression distillation, lubricating oil after decompression distillation adds after 400kg isopropanol, 200kg isobutanol, 1kg ethylenediamine constant temperature backflow 0.5h at 50 DEG C, contaminant filter is obtained mixed liquor, thereafter at 50 DEG C, decompression distillation is again carried out, to the lubricating oil after i.e. being regenerated after wherein alcohols is removed completely.

Claims (5)

1. the renovation process of a waste lubrication oil, it is characterised in that: comprise the following steps:
(1) waste lubrication oil is carried out deposition dehydrating;
(2) waste lubrication oil after deposition dehydrating is carried out the first decompression distillation;
(3) waste lubrication oil after the first decompression distillation adds after isopropanol, isobutanol, ethylenediamine constant temperature backflow 0.5 ~ 2h at 30 ~ 60 DEG C, is filtrated to get thereafter mixed liquor;
(4) mixed liquor is carried out at 30 ~ 60 DEG C the second decompression distillation, to the lubricating oil after i.e. being regenerated after wherein alcohols is removed completely.
The renovation process of waste lubrication oil the most according to claim 1, it is characterised in that: described isopropanol is 2 ~ 3:1 with the mass ratio of isobutanol.
The renovation process of waste lubrication oil the most according to claim 1, it is characterised in that: the quality of described ethylenediamine is the 1% ~ 1.5% of described waste lubrication oil quality.
The renovation process of waste lubrication oil the most according to claim 1, it is characterised in that: the quality of described isopropanol is 0.5 ~ 5:1 of described waste lubrication oil quality.
The renovation process of waste lubrication oil the most according to claim 1, it is characterised in that: described in described step (2), the temperature of the first decompression distillation is 200 ~ 300 DEG C, and vacuum is 30 ~ 40mmHg.
CN201610380823.0A 2016-06-01 2016-06-01 Regeneration method of waste lubricating oil CN106010766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610380823.0A CN106010766A (en) 2016-06-01 2016-06-01 Regeneration method of waste lubricating oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610380823.0A CN106010766A (en) 2016-06-01 2016-06-01 Regeneration method of waste lubricating oil

Publications (1)

Publication Number Publication Date
CN106010766A true CN106010766A (en) 2016-10-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610380823.0A CN106010766A (en) 2016-06-01 2016-06-01 Regeneration method of waste lubricating oil

Country Status (1)

Country Link
CN (1) CN106010766A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101735882A (en) * 2009-12-10 2010-06-16 武汉科技学院 Method for regenerating base oil by waste internal-combustion engine oil
CN103881800A (en) * 2014-03-20 2014-06-25 重庆工商大学 Method of pre-treating waste lubricating oil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101735882A (en) * 2009-12-10 2010-06-16 武汉科技学院 Method for regenerating base oil by waste internal-combustion engine oil
CN103881800A (en) * 2014-03-20 2014-06-25 重庆工商大学 Method of pre-treating waste lubricating oil

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
李璐等: "双溶剂精制法回收废润滑油", 《辽宁石油化工大学学报》 *
杨鑫等: "基于三碳醇溶剂精制再生废润滑油", 《石油学报(石油加工)》 *
杨鑫等: "萃取-絮凝组合精制再生废润滑油", 《后勤工程学院学报》 *

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Application publication date: 20161012

RJ01 Rejection of invention patent application after publication