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Method for preparing release agent from waste engine oil

A technology of release agent and waste engine oil, which is applied in the field of preparation of release agent from waste engine oil, to achieve the effects of stable polymerization reaction, high yield and simple process

Inactive Publication Date: 2014-09-03
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] At present, there are various types of release agents, and the materials are not the same. With the increase in the amount of release agents, more and more researches have been done on release agents, but there are certain defects in the selection of materials. The production process of processing waste engine oil as raw material to produce oil-based release agent

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  • Method for preparing release agent from waste engine oil
  • Method for preparing release agent from waste engine oil
  • Method for preparing release agent from waste engine oil

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Embodiment 1

[0027] The main raw materials of the release agent are waste engine oil; anionic emulsifier; silicone oil; industrial sodium hydroxide. The preparation of waste engine oil release agent comprises:

[0028] (1) Pretreatment: dewatering, pickling, alkali washing, adsorption, filtration.

[0029] (2) Preparation:

[0030] Step 1: It is mainly for preheating and modifying oil products, which requires high temperature and stirring at a medium speed. Based on 30ml of oil, the required heating temperature is about 90°C, and the heating and stirring time is about 30 minutes. Oil can be increased or decreased, and the time can also be increased or decreased appropriately, generally not less than 20 minutes, as long as there is stable foam on the surface.

[0031] The second step: This stage is to add lye (with CaO or NaOH) to the pretreated oil variety to saponify and complete the emulsification process at the same time. The main conditions are: oil-alkali ratio, water volume, time...

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Abstract

The invention discloses a method for preparing a release agent from waste engine oil, and relates to a method for preparing a release agent. The method comprises the following steps: carrying out pre-treatment on waste engine oil; carrying out preheating modification on an oil product, wherein the required heating temperature is 90 DEG C, the heating agitation time is 30 minutes, the heating agitation time also can be prolonged or shortened while the oil product is increased or reduced, and is not shorter than 20 minutes until stable foams can be formed on the surface; adding alkali liquor to the pre-treated oil product; saponifying CaO or NaOH, and simultaneously finishing the emulsification process; grasping the oil-alkali ratio, the water yield, the time and the temperature; taking CaO to dissolve into water; adding a little of oil to the solution each time, and adding the oil again after evenly mixing, wherein the reaction time is 1.5 hours, and the temperature is 78-80 DEG C; adding a little of water after a period of time in the agitation process, and keeping the total volume invariable. The release agent prepared by the method can be widely applied to a building industry, a household appliance industry, a toy industry, a medical industry and the like, and has a positive meaning on improvement of waste engine oil flooding and energy shortage.

Description

technical field [0001] The invention relates to a method for preparing a release agent, in particular to a method for preparing a release agent from waste engine oil. Background technique [0002] The regeneration of waste engine oil in my country began in the 1930s and entered its heyday in the 1970s. After the 1980s, the engine oil sales market was liberalized. Because the amount of waste oil recovered by the professional regeneration plants of oil companies in various places was less than the expected amount, they were forced to turn to the blending of engine oil. After the 1990s, the trend of decentralization of waste engine oil recycling plants continued, and most of the professional recycling plants were 100-ton class, and kilo-ton class was rare. my country's waste engine oil regeneration technology is still relatively backward, with small scale and simple process. Now the national waste engine oil recovery rate is only about 6%. With the increase of production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/64
Inventor 刘长风张晓丹范文玉冯家辉
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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