CN106047466A - Method for refining and recovering abandoned lubricating oil - Google Patents

Method for refining and recovering abandoned lubricating oil Download PDF

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Publication number
CN106047466A
CN106047466A CN201610380822.6A CN201610380822A CN106047466A CN 106047466 A CN106047466 A CN 106047466A CN 201610380822 A CN201610380822 A CN 201610380822A CN 106047466 A CN106047466 A CN 106047466A
Authority
CN
China
Prior art keywords
lubrication oil
lubricating oil
waste lubrication
abandoned
decompression distillation
Prior art date
Application number
CN201610380822.6A
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 CN201610380822.6A priority Critical patent/CN106047466A/en
Publication of CN106047466A publication Critical patent/CN106047466A/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
    • C10M175/0016Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents
    • 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
    • C10M175/0025Working-up used lubricants to recover useful products ; Cleaning by thermal processes
    • C10M175/0033Working-up used lubricants to recover useful products ; Cleaning by thermal processes using distillation processes; devices therefor
    • 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
    • C10M175/0083Lubricating greases

Abstract

The invention discloses a method for refining and recovering abandoned lubricating oil in a double-solvent mode. The method comprises the steps that 1, the abandoned lubricating oil is subjected to settling dehydration; 2, the abandoned lubricating oil subjected to settling dehydration is subjected to primary reduced pressure distillation; 3, isopropyl alcohol, epoxy chloropropane and ethylenediamine are added to the abandoned lubricating oil subjected to primary reduced pressure distillation, then constant-temperature reflux is performed at the temperature of 60-70 DEG C for 0.5-2 hours, and mixed liquid is obtained through filtration; 4, secondary reduced pressure distillation is conducted on the mixed liquid at the temperature of 40-80 DEG C till solvents are completely removed, and then the regenerated lubricating oil is obtained.

Description

A kind of method of refined recovery 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 the effect such as buffering.Lubricating oil is in use During can be mixed into impurity, moisture, and be often in the condition of high temperature, therefore long-time use after can produce physics, chemical reaction, Lubricating oil is accumulated various oxide, greasy filth, carbon slag, carboxylic acid etc. so that it is lubricity declines, it is impossible to reach lubricant effect again, become For waste lubrication oil.
Summary of the invention
It is an object of the invention to propose a kind of simple efficient refined method reclaiming waste lubrication oil.
Technical scheme is as follows:
A kind of method of refined recovery 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, epoxychloropropane, ethylenediamine at 60 ~ 70 DEG C Lower constant temperature backflow 0.5 ~ 2h, is filtrated to get thereafter mixed liquor;
(4) mixed liquor is carried out at 40 ~ 80 DEG C the second decompression distillation, after i.e. being regenerated after wherein solvent is removed completely Lubricating oil.
Preferably: described isopropanol is 1 ~ 3:1 with the mass ratio of epoxychloropropane.
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 pairs, it is not necessary to traditional distillation, acid treatment Or the processing step that clay treatment etc. is complicated, the most efficiently, the solvent used in process can also reclaim further, the utilization of resources Rate 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 under 30mmHg, to carry out decompression distillation, to After adding 250kg isopropanol, 130kg epoxychloropropane, 5kg ethylenediamine in lubricating oil after decompression distillation, at 60 DEG C, constant temperature returns Stream 2h, obtains mixed liquor by contaminant filter, again carries out thereafter decompression distillation, go completely to wherein small molecule solvent at 40 DEG C Except rear i.e. regenerated after lubricating oil.
Embodiment 2
500kg waste lubrication oil is carried out deposition dehydrating, thereafter 300 DEG C, vacuum be under 40mmHg, to carry out decompression distillation, to Lubricating oil after decompression distillation add after 2000kg isopropanol, 700kg epoxychloropropane, 7.5kg ethylenediamine permanent at 70 DEG C Temperature backflow 0.5h, obtains mixed liquor by contaminant filter, again carries out thereafter decompression distillation, to wherein small molecule solvent at 80 DEG C Lubricating oil after i.e. being regenerated after removing completely.
Embodiment 3
100kg waste lubrication oil is carried out deposition dehydrating, thereafter 300 DEG C, vacuum be under 40mmHg, to carry out decompression distillation, to After adding 400kg isopropanol, 200kg epoxychloropropane, 1kg ethylenediamine in lubricating oil after decompression distillation, at 70 DEG C, constant temperature returns Stream 0.5h, obtains mixed liquor by contaminant filter, again carries out thereafter decompression distillation at 60 DEG C, complete to wherein small molecule solvent Lubricating oil after i.e. being regenerated after removal.

Claims (5)

1. the refined method reclaiming 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, epoxychloropropane, ethylenediamine at 60 ~ 70 DEG C Lower constant temperature backflow 0.5 ~ 2h, is filtrated to get thereafter mixed liquor;
(4) mixed liquor is carried out at 40 ~ 80 DEG C the second decompression distillation, after i.e. being regenerated after wherein solvent is removed completely Lubricating oil.
The method of refined recovery waste lubrication oil the most according to claim 1, it is characterised in that: described isopropanol and epoxy The mass ratio of chloropropane is 1 ~ 3:1.
The method of refined recovery waste lubrication oil the most according to claim 1, it is characterised in that: the quality of described ethylenediamine For described waste lubrication oil quality 1% ~ 1.5%.
The method of refined recovery waste lubrication oil the most according to claim 1, it is characterised in that: the quality of described isopropanol 0.5 ~ 5:1 for described waste lubrication oil quality.
The method of refined recovery waste lubrication oil the most according to claim 1, it is characterised in that: institute in described step (2) The temperature stating the first decompression distillation is 200 ~ 300 DEG C, and vacuum is 30 ~ 40mmHg.
CN201610380822.6A 2016-06-01 2016-06-01 Method for refining and recovering abandoned lubricating oil CN106047466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610380822.6A CN106047466A (en) 2016-06-01 2016-06-01 Method for refining and recovering abandoned lubricating oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610380822.6A CN106047466A (en) 2016-06-01 2016-06-01 Method for refining and recovering abandoned lubricating oil

Publications (1)

Publication Number Publication Date
CN106047466A true CN106047466A (en) 2016-10-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610380822.6A CN106047466A (en) 2016-06-01 2016-06-01 Method for refining and recovering abandoned lubricating oil

Country Status (1)

Country Link
CN (1) CN106047466A (en)

Citations (1)

* 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

Patent Citations (1)

* 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

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: 20161026