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Process for regeneration of waste lubricating oil

A technology of waste lubricating oil and process, applied in the field of waste lubricating oil regeneration process, can solve problems such as environmental pollution, and achieve the effects of less investment, saving resources and reducing waste

Inactive Publication Date: 2007-05-16
SHANDONG HUALIAN MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Waste lubricating oil used to be discarded, road oiled, incinerated, and heavy metals were removed as fuel. These methods cannot effectively reuse waste lubricating oil and are more likely to cause environmental pollution.

Method used

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  • Process for regeneration of waste lubricating oil

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Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Follow the steps below to dispose of used internal combustion engine oil:

[0023] 1) The waste internal combustion engine oil is settled at 45°C-55°C, centrifuged and filtered;

[0024] 2) Take step 1) waste internal combustion engine oil 60m 3 Heat up to 50°C, add 120L of 50% NaOH solution, stir, when the temperature rises to 55°C, add 40L of 30% hydrogen peroxide solution, continue to heat up to 65°C; settle for 24 hours, cool to room temperature, and let go The miscellaneous oil in the lower part, add the anhydrous AlCl of 0.5% (weight ratio) in the clear oil of the upper part 3 , heated to 80°C under stirring, stirred at constant temperature for 1 hour, cooled to room temperature, decolorized, filtered, and 0.2% (weight ratio) of additives were added to obtain a qualified regenerated lubricating oil; the quality index comparison of the regenerated oil is shown in Table 1.

[0025] The additive is prepared by mixing dialkylated diphenylamine and polymethacrylate i...

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PUM

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Abstract

The invention discloses a regenerating technique of waste lubricant in the product technical recycling domain, which comprises the following steps: depositing waste lubricant at 45-55 Deg C; centrifuging; separating; filtering; heating 60m3 waste lubricant to 50 Deg C; adding NaOH solution; stirring; heating to 55 Deg C; adding hydrogen oxide solution; heating continuously to 65 Deg C; depositing 24h; cooling to indoor temperature; discharging lower oil; adding 0.5% anhydrous AlCl3 in the upper oil; stirring to heat to 80 Deg C; stirring under constant temperature for 1h; cooling to indoor temperature; decoloring; filtering; adding 0.2% additive to obtain the standard lubricant; adopting composite dialkyl diphenylamine and polymethacrylate as additive.

Description

technical field [0001] The invention belongs to the technical field of processing used lubricants to recover useful products, and in particular relates to a waste lubricating oil regeneration process. Background technique [0002] During the use of lubricating oil, due to high temperature and air oxidation, it will gradually age and deteriorate. In addition, metal powder from friction parts, moisture entering the oil due to respiration and other reasons, and impurities intruding from the environment, It not only pollutes the oil, but also promotes the oxidation of lubricating oil. Therefore, after the lubricating oil deteriorates to a certain extent within a certain period of time, it must be replaced, thus producing waste lubricating oil, a waste product. And as the country develops more and the degree of mechanization is higher, more lubricating oil is used, and waste lubricating oil also increases accordingly. [0003] Waste lubricating oil used to be discarded, road oi...

Claims

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Application Information

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IPC IPC(8): C10M175/00
Inventor 张业清张清河沈兴玉
Owner SHANDONG HUALIAN MINING
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