CN103031187A - Process for preparing dispersing agents from petroleum products - Google Patents
Process for preparing dispersing agents from petroleum products Download PDFInfo
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- CN103031187A CN103031187A CN 201110295336 CN201110295336A CN103031187A CN 103031187 A CN103031187 A CN 103031187A CN 201110295336 CN201110295336 CN 201110295336 CN 201110295336 A CN201110295336 A CN 201110295336A CN 103031187 A CN103031187 A CN 103031187A
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- petroleum
- aldehyde
- petroleum asphalt
- dispersion agent
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Abstract
The invention discloses a process for preparing dispersing agents from petroleum products. The process comprises the following steps that petroleum asphalt fraction is dissolved into insert solvents in a temperature range being 20 to 50 DEGC; the insert solvents containing dissolved petroleum asphalt fraction are mixed with solvents containing dissolved alkali metal, the petroleum asphalt fraction is salinized, and the salinized petroleum asphalt fraction is separated; the salinized petroleum asphalt fraction is dissolved into polyalkylene succinic acid, and the polyalkylene succinic acid containing dissolved salinized petroleum asphalt fraction is mixed with polyene polyamine according to a mol ratio being 2:1; dehydration reaction is carried out on the mixture in a temperature range being 100 to 180 DEG C, and intermediate products are collected; aldehyde and amine condensate are added into the intermediate products, the mol ratio of intermediate products: aldehyde: amine condensate is 10:5:2, the intermediate products, and the aldehyde and the amine condensate take reaction in a temperature range being 120 to 150 DEG C, and products are collected. The process provided by the invention has the advantage that dispersing agents with high oxidization resistance can be prepared from petroleum product of asphalt fraction at lower cost.
Description
Technical field
The present invention relates to chemical field, relate in particular to a kind of technique for preparing dispersion agent from petroleum products.
Background technology
Dispersion agent is a kind of petroleum by-product, and a main application of dispersion agent is to be added in the processed oil.Particularly be added in the lubricating oil.Along with development and the popularization of energy-conserving and emission-cutting technology, the discharge capacity of motor car engine constantly reduces, but corresponding, the compression ratio of requirement improves constantly.This means that motor car engine will be with higher service temperature work, to improve fuel utilization ratio and to reduce exhaust gas emission.
Higher working temperature is had higher requirement to the oxidation-resistance of oil fuel and lubricating oil, and is same, also the oxidation-resistance that is widely used in the dispersion agent in oil fuel and the lubricating oil had higher requirement.In order to prepare the dispersion agent with high antioxidant, will improve the cost of preparation dispersion agent.So just need a kind of lower preparation cost that possesses, have again the dispersion agent of high antioxidant.
Summary of the invention
The present invention is intended to propose have the preparation technology of the dispersion agent of lower preparation cost.This preparation technology prepares dispersion agent from petroleum asphalt fractions.
According to one embodiment of the invention, a kind of technique for preparing dispersion agent from petroleum products is proposed, comprise following step:
In 20 ℃～50 ℃ temperature range, petroleum asphalt fractions is dissolved in inert solvent;
To be dissolved with the inert solvent of petroleum asphalt fractions and be dissolved with alkali-metal solvent, petroleum asphalt fractions be extracted through the petroleum asphalt fractions of salinization by salinization;
To be dissolved in through the petroleum asphalt fractions of salinization polyolefin-based Succinic Acid, will be dissolved with through the polyolefin-based Succinic Acid of the petroleum asphalt fractions of salinization and the polyamines polyene ratio mixed-shaped resulting mixture according to 2: 1 mol ratios;
In 100 ℃～180 ℃ temperature range, described mixture is carried out dehydration reaction, collect intermediate product;
Add aldehyde and amine condensation in intermediate product, the ratio of intermediate product, aldehyde and amine condensation is 10: 5: 2 mol ratios, with intermediate product, aldehyde and the amine condensation temperature range internal reaction at 120 ℃～150 ℃, collects product.
In one embodiment, inert solvent comprises benzene and chloroform.
In one embodiment, being dissolved with alkali-metal solvent is to be dissolved with alkali-metal hydroxide aqueous solution.
In one embodiment, the reaction times of dehydration reaction is 5～8 hours.
In one embodiment, intermediate product, aldehyde and the amine condensation reaction times in 120 ℃～150 ℃ temperature range is 3～6 hours.
In one embodiment, aldehyde comprises: formaldehyde, acetaldehyde, phenyl aldehyde.
Adopt dispersion agent preparation technology of the present invention, can from petroleum products-pitch fractions, prepare the dispersion agent with high antioxidant with lower cost, for oil fuel and lubricating oil.
Description of drawings
Fig. 1 has disclosed and has prepared the schema of the technique of dispersion agent according to one embodiment of the invention from petroleum products.
Embodiment
With reference to shown in Figure 1, the present invention has disclosed a kind of technique for preparing dispersion agent from petroleum products, and this technique comprises following step:
102. in 20 ℃～50 ℃ temperature range, petroleum asphalt fractions is dissolved in inert solvent.In one embodiment, inert solvent is benzene or chloroform.
104. will be dissolved with the inert solvent of petroleum asphalt fractions and be dissolved with alkali-metal solvent, petroleum asphalt fractions is extracted through the petroleum asphalt fractions of salinization by salinization.In one embodiment, being dissolved with alkali-metal solvent is to be dissolved with alkali-metal hydroxide aqueous solution.In one embodiment, the alkalimetal ion that is dissolved with in the alkali-metal volume comprises lithium, sodium or potassium.
106. will be dissolved in through the petroleum asphalt fractions of salinization polyolefin-based Succinic Acid, will be dissolved with through the polyolefin-based Succinic Acid of the petroleum asphalt fractions of salinization and the polyamines polyene ratio mixed-shaped resulting mixture according to 2: 1 mol ratios.
108. in 100 ℃～180 ℃ temperature range, mixture is carried out dehydration reaction, collects intermediate product.The reaction times of in one embodiment, carrying out dehydration reaction is 5～8 hours.
110. add aldehyde and amine condensation in intermediate product, the ratio of intermediate product, aldehyde and amine condensation is 10: 5: 2 mol ratios, with intermediate product, aldehyde and the amine condensation temperature range internal reaction at 120 ℃～150 ℃, collects product.In one embodiment, the reaction times of a product, aldehyde and amine condensation is 3～6 hours.Wherein employed aldehyde comprises: formaldehyde, acetaldehyde, phenyl aldehyde.
The below introduces the example that two dispersion agent preparation technologies according to the present invention carry out the dispersion agent preparation:
At first under 25 ℃ room temperature, petroleum asphalt fractions is dissolved in benzene.In benzene solvent, add sodium hydroxide solution, extract through the petroleum asphalt fractions of salinization.To be dissolved in through the petroleum asphalt fractions of salinization polyolefin-based Succinic Acid, and add polyamines polyene with 2: 1 mol ratio in polyolefin-based Succinic Acid, this polyamines polyene is diethylenetriamine.Under 150 ℃ temperature, mixture was carried out dehydration reaction 6 hours and collected intermediate product.Add formaldehyde and amine condensation in intermediate product, the ratio of intermediate product, formaldehyde and amine condensation is 10: 5: 2 mol ratios.With intermediate product, formaldehyde and amine condensation at 130 ° temperature range internal reaction 5 hours and collect product.The product that collection obtains is dispersion agent.
In another example:
At first under 45 ℃ heating environment, petroleum asphalt fractions is dissolved in chloroform.In chloroform solvent, add potassium hydroxide solution, extract through the petroleum asphalt fractions of salinization.To be dissolved in through the petroleum asphalt fractions of salinization polyolefin-based Succinic Acid, and add polyamines polyene with 2: 1 mol ratio in polyolefin-based Succinic Acid, this polyamines polyene is tetraethylene pentamine.Under 180 ℃ temperature, mixture was carried out dehydration reaction 7 hours and collected intermediate product.Add acetaldehyde and amine condensation in intermediate product, the ratio of intermediate product, acetaldehyde and amine condensation is 10: 5: 2 mol ratios.With intermediate product, acetaldehyde and amine condensation at 150 ° temperature range internal reaction 4 hours and collect product.The product that collection obtains is dispersion agent.
Adopt dispersion agent preparation technology of the present invention, can from petroleum products-pitch fractions, prepare the dispersion agent with high antioxidant with lower cost, for oil fuel and lubricating oil.
Claims (6)
1. a technique for preparing dispersion agent from petroleum products is characterized in that, comprising:
In 20 ℃～50 ℃ temperature range, petroleum asphalt fractions is dissolved in inert solvent;
To be dissolved with the inert solvent of petroleum asphalt fractions and be dissolved with alkali-metal solvent, petroleum asphalt fractions be extracted through the petroleum asphalt fractions of salinization by salinization;
To be dissolved in through the petroleum asphalt fractions of salinization polyolefin-based Succinic Acid, will be dissolved with through the polyolefin-based Succinic Acid of the petroleum asphalt fractions of salinization and the polyamines polyene ratio mixed-shaped resulting mixture according to 2: 1 mol ratios;
In 100 ℃～180 ℃ temperature range, described mixture is carried out dehydration reaction, collect intermediate product;
Add aldehyde and amine condensation in described intermediate product, the ratio of described intermediate product, aldehyde and amine condensation is 10: 5: 2 mol ratios, with intermediate product, aldehyde and the amine condensation temperature range internal reaction at 120 ℃～150 ℃, collects product.
2. the technique for preparing dispersion agent from petroleum products as claimed in claim 1 is characterized in that, described inert solvent comprises benzene and chloroform.
3. the technique for preparing dispersion agent from petroleum products as claimed in claim 1 is characterized in that, described to be dissolved with alkali-metal solvent be to be dissolved with alkali-metal hydroxide aqueous solution.
4. the technique for preparing dispersion agent from petroleum products as claimed in claim 1 is characterized in that, the reaction times of described dehydration reaction is 5～8 hours.
5. the technique for preparing dispersion agent from petroleum products as claimed in claim 1 is characterized in that, described intermediate product, aldehyde and the amine condensation reaction times in 120 ℃～150 ℃ temperature range is 3～6 hours.
6. the technique for preparing dispersion agent from petroleum products as claimed in claim 1 is characterized in that, described aldehyde comprises: formaldehyde, acetaldehyde, phenyl aldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110295336 CN103031187A (en) | 2011-09-29 | 2011-09-29 | Process for preparing dispersing agents from petroleum products |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110295336 CN103031187A (en) | 2011-09-29 | 2011-09-29 | Process for preparing dispersing agents from petroleum products |
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| CN103031187A true CN103031187A (en) | 2013-04-10 |
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| CN 201110295336 Pending CN103031187A (en) | 2011-09-29 | 2011-09-29 | Process for preparing dispersing agents from petroleum products |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106281580A (en) * | 2015-06-29 | 2017-01-04 | 中国石油天然气股份有限公司 | The preparation method of soot ashless dispersant |
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2011
- 2011-09-29 CN CN 201110295336 patent/CN103031187A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106281580A (en) * | 2015-06-29 | 2017-01-04 | 中国石油天然气股份有限公司 | The preparation method of soot ashless dispersant |
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Application publication date: 20130410 |