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Low sulfur, low arene aluminum board hammering base oil preparation method

A base oil and aluminum foil technology, which is applied in the refined hydrocarbon oil, petroleum industry, etc., can solve the problems of difficult adoption by small and medium-sized enterprises, large one-time investment in hydrogenation units, etc., to reduce costs, reduce sulfur content, and simplify the process flow Effect

Active Publication Date: 2007-05-02
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the one-time investment in the hydrogenation unit is very large, and it is difficult for small and medium-sized enterprises to adopt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] In a 500ml Erlenmeyer flask, 40ml of light diesel fraction oil with a distillation range between 210-245°C was measured, the sulfur content was 300mg / kg, and the mass percentage of aromatics content was 16.45%. Add 280ml of triethylene glycol with a water content of 2% by mass, place it in an oil bath at 120°C for 10 minutes, stir and extract, move to a 500ml separatory funnel and let it stand for stratification. After removing the lower layer of triethylene glycol, add fresh water 280ml of the extract triethylene glycol with a content of 2% by mass was stirred in an oil bath at 120°C for 10 minutes for the second extraction, and then moved to a separatory funnel for static separation. Repeat the above steps until the 8th extraction, add 4ml of deionized water to the separated raffinate oil, stir and wash in a water bath at 40°C for 10 minutes, and separate the lower layer of water to obtain the aluminum foil rolling base oil. Wherein the content of aromatics is 0.9% by...

Embodiment 2

[0013] In a 500ml Erlenmeyer flask, 40ml of light diesel fraction oil with a distillation range between 208-240°C was measured, the sulfur content was 280mg / kg, and the mass percentage of aromatics content was 15.2%. Add 200ml of tetraethylene glycol with a water content of 5% by mass, place it in an oil bath at 110°C for 14 minutes, stir and extract for 14 minutes, move it to a 500ml separating funnel and let it stand for stratification. After removing the lower layer of tetraethylene glycol, add fresh water 200ml of tetraethylene glycol in the extract with a content of 5% by mass was stirred in an oil bath at 110°C for 14 minutes for the second extraction, and then moved to a separatory funnel for static separation. Repeat the above steps until the seventh extraction, add 8ml of deionized water to the separated raffinate oil, stir and wash in a water bath at 50°C for 10 minutes, and separate the lower layer of water to obtain the aluminum foil rolling base oil. Wherein the c...

Embodiment 3

[0015] In a 500ml Erlenmeyer flask, 40ml of light diesel fraction oil with a distillation range between 208-242°C was measured, the sulfur content was 54mg / kg, and the mass percentage of aromatics content was 11%. Add 320ml of tetraethylene glycol with a water content of 3% by mass, place it in an oil bath at 126°C and stir for extraction for 12 minutes, move it to a 500ml separatory funnel and let it stand for stratification. After removing the lower layer of tetraethylene glycol, add fresh water 320ml of tetraethylene glycol extract with a content of 6% by mass was stirred in an oil bath at 126°C for 12 minutes for the second extraction, and then moved to a separatory funnel for static separation. Repeat the above steps until the fifth extraction, add 8ml of deionized water to the separated raffinate oil, stir and wash in a water bath at 60°C for 10 minutes, and separate the lower layer of water to obtain the aluminum foil rolling base oil. Wherein the mass percentage of aro...

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Abstract

The invention provides a process for preparing base oil used for rolling aluminium foil by using straight distillation light diesel oil as the raw material, the volumetric ratio of the raw material oil and the extracting agent is 1:4-8, a dissolvent of diethylene glycol or triethylene glycol or tetraethylene glycol containing 1-10 wt% of water is employed for extraction, after extraction separation, water scrubbing is carried out. The charged amount of deionized water is 1-20% by volume of the distillation oil.

Description

technical field [0001] The invention relates to a method for preparing aluminum foil rolling base oil, which belongs to the field of oil refining and chemical industry. In particular, it relates to a method for preparing low-sulfur and low-aromatic aluminum foil rolling base oil by using straight-run light diesel oil distillate oil as raw material, liquid-liquid extraction, separation, and water washing. Background technique [0002] Aluminum foil rolling base oil technology has improved with the development of cold rolling mills. In the 1980s, due to the emergence of new high-speed rolling mills and the special requirements of drug and food management, low-sulfur, low-aromatic, non-toxic and odorless base oils gradually appeared in the world. The earlier production process abroad is sulfonation refining and adsorption refining. Some domestic manufacturers also use this method to produce. The sulfonation refining process will cause certain environmental pollution due to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G21/16
Inventor 陈蓝天孟伟杨波熊庆春
Owner PETROCHINA CO LTD
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