Alkaline purifying agent

A purifying agent and alkaline technology, applied in the field of lubricating base oil manufacturing, can solve the problems of large equipment investment, high production cost and complicated operation process

Inactive Publication Date: 2008-03-26
蒋玉珊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When treating oil products with "hydrogenation method", although the neutralization value of the product can meet the standar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0010] The preparation method of the present invention comprises the following processing steps:

[0011] 1. Preparation of aluminosilicate carrier

[0012] A. Prepare the base material

[0013] Prepare an appropriate amount of aluminosilicate ore products, namely bentonite or attapulgite clay or kaolin or diatomite or leaf wax or sepiolite or zeolite or bauxite, and dry and crush it to obtain the base material ;

[0014] B. Acidification

[0015] According to the ratio of base material and inorganic acid, that is, hydrochloric acid or sulfuric acid or nitric acid or phosphoric acid aqueous solution, the ratio of weight and number is 1: 1 to 3, adding a concentration of 10% to 50% inorganic acid aqueous solution to the base material, and heating to Its boiling point, while stirring for 1 to 10 hours, and then washed with water, so that the free acid content of the precipitate is less than 0.5%;

[0016] C. drying the precipitate so that the weight content of water is less ...

Embodiment 1

[0023] 1. Preparation of aluminate carrier

[0024] A. Prepare the base material

[0025] Prepare an appropriate amount of attapulgite clay or bentonite, dry and crush it to obtain the base material;

[0026] B. Acidification

[0027] According to the ratio of parts by weight of the base material to the hydrochloric acid aqueous solution being 1:1, add an aqueous hydrochloric acid solution with a weight concentration of 25% to the base material, and heat to the boiling point, while stirring for 1 hour, and then wash with water to make the precipitate The free acid content of the product is less than 0.5%;

[0028] C. drying the precipitate so that the weight content of water is less than 10%, to obtain the aluminosilicate carrier.

[0029] 2. Composite

[0030] Sodium hydroxide is compounded on the aluminosilicate carrier by ion exchange, that is, the ratio of the weight and number of the aluminosilicate carrier and the sodium hydroxide aqueous solution with a concentratio...

Embodiment 2

[0034] 1. Preparation of aluminate carrier

[0035] A. Prepare the base material

[0036] Prepare an appropriate amount of diatomite or kaolin, dry and crush it to obtain the base material;

[0037] B. Acidification

[0038] According to the weight ratio of base material and phosphoric acid aqueous solution as 1:1, add phosphoric acid aqueous solution with a weight concentration of 10% to the base material, heat to boiling point, stir for 10 hours at the same time, and then wash with water to make the precipitate The free acid content of the product is less than 0.2%;

[0039] C. drying the precipitate so that the weight content of water is less than 10%, to obtain the aluminosilicate carrier. two,

[0040] complex

[0041] The potassium hydroxide is compounded on the aluminosilicate carrier by a mixing method, that is, the weight ratio of the aluminosilicate carrier and potassium hydroxide is 1000:1, and the two are stirred and mixed until uniform.

[0042] 3. Finished ...

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PUM

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Abstract

The present invention discloses one kind of alkaline purificant for eliminate acid matters from basic oil for lubricant oil, and features that the alkaline purificant consists of aluminosilicate carrier in 90-99.9 wt% and inorganic base or inorganic salt in 0.1-10 wt%. The alkaline purificant is used in eliminating acid matters from basic oil for lubricant oil to lower the neutralization number of the oil from 0.05-0.07 mgKOH/g to 0.02 mgKOH/g. Compared with hydrogen as the alkaline purificant for basic oil of lubricant oil, the alkaline purificant has one 20 % lowered production cost.

Description

technical field [0001] The invention relates to the technical field of lubricating base oil production, in particular to an alkaline purifier for removing acidic substances in lubricating base oil. Background technique [0002] For a long time, in the process of manufacturing lubricating base oil, when the content of acidic substances in the oil is too high, so that the neutralization value index exceeds the standard, it is usually deacidified with an oil purifier to ensure product quality. . The traditional oil purifier is mainly hydrogen, and the operation of using hydrogen as a purifier to remove acidic substances from oil is also called "hydrogenation method". When treating oil products with "hydrogenation method", although the neutralization value of the product can meet the standard requirements, there are defects such as large equipment investment and complicated operation process, resulting in high production costs. Contents of the invention [0003] The purpose ...

Claims

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Application Information

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IPC IPC(8): C10G19/073
Inventor 蒋玉珊
Owner 蒋玉珊
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