Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing sulfonates of components of different groups of petroleum distillate

A technology of petroleum fractions and group components, which is applied in the preparation of sulfonate, organic chemistry, etc., can solve the problems of harm, large amount of benzene, small injection volume, etc., and achieve the goal of reducing physical hazards, good separation effect and clear separation Effect

Active Publication Date: 2012-11-28
中轻化工绍兴有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two methods have a small injection volume on the one hand, and a large amount of benzene on the other hand. Benzene is a highly toxic substance, which is easy to cause cancer, and a large amount of use will cause harm to the body, so it is not suitable for the preparation of distillate oil components.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Put the activated adsorbent silica gel into the chromatographic column, fill the column with petroleum ether, and add 50g of distillate oil, the eluent A is petroleum ether, and the eluent B is petroleum ether / toluene Mixed solvent (volume content of toluene is 5%), eluent C is sherwood oil / toluene mixed solvent (volume content of toluene is 20%), eluent D is sherwood oil / ethyl acetate mixed solvent (ethyl acetate The volume content is 10%), eluent E is absolute ethanol. In the tank reactor, add 5g of group component d, heat up to 10°C, slowly add 1g of liquid sulfur trioxide dropwise (the ratio of liquid sulfur trioxide is 10%), react at 10°C for 30min, use mass concentration Use 20% NaOH aqueous solution to neutralize the sulfonated crude product to PH=7~8, evaporate the solvent to dryness, take 2 g of the crude sulfonate product, dissolve it in absolute ethanol, and use hot absolute ethanol at 80°C Alternate elution with petroleum ether, suction filtratio...

Embodiment 2

[0022] Embodiment 2: the activated adsorbent is loaded into the chromatographic column, and the column is moistened with petroleum ether after filling, and 80g of distillate oil is added, the eluent A is cyclohexane, and the eluent B is petroleum ether / Toluene mixed solvent (the volume content of toluene is 6.5%), eluent C is sherwood oil / toluene mixed solvent (the volume content of toluene is 22.5%), eluent D is sherwood oil / ethyl acetate mixed solvent (ethyl acetate The volume content of the ester is 12.5%), and the eluent E is anhydrous methanol. In the tank reactor, add 5g of group component c, heat up to the required sulfonation temperature of 20°C, slowly add 5g of oleum (the proportion of oleum is 100%) dropwise, react for 30min, and use a mass concentration of 20 % NaOH aqueous solution to neutralize the sulfonated crude product to PH = 7 ~ 8, after evaporating the solvent, take 5 g of the crude sulfonate product, dissolve it in absolute ethanol, and use hot absolute ...

Embodiment 3

[0023] Example 3: Pack the activated adsorbent into the chromatographic column, moisten the column with petroleum ether after packing, and add 65g of distillate oil, the eluent A is petroleum ether, and the eluent B is petroleum ether / toluene Mixed solvent (the volume content of toluene is 8%), eluent C is sherwood oil / toluene mixed solvent (the volume content of toluene is 25%), eluent D is sherwood oil / ethyl acetate mixed solvent (ethyl acetate The volume content is 15%), eluent E is absolute ethanol. In the tank reactor, add 5g of group component b, heat up to the required sulfonation temperature of 45°C, slowly add 1.25g of liquid sulfur trioxide dropwise (the ratio of sulfur trioxide is 25%), react for 30min, use The NaOH aqueous solution with a mass concentration of 30% neutralizes the sulfonated crude product to PH=7~8, after evaporating the solvent, take 3 g of the crude sulfonate product, dissolve it in absolute ethanol, and use hot anhydrous Ethanol and petroleum et...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for preparing sulfonates of the components of different groups of a petroleum fraction, which comprises: filling an activated adsorbent in a chromatographic column, dampening the column by using petroleum ether, adding a petroleum distillate into the chromatographic column by using a subtraction method; eluting a sample by using eluting solution A, B, C, D and E in turn according a sequence from low polarity to high polarity, wherein the eluting solution A is petroleum ether or cyclohexane, the eluting solution B is mixed solvent of petroleum ether and toluene, the toluene volume content of the mixed solvent is 5 to 10 percent, the eluting solution C is a mixed solvent of petroleum ether and toluene, the toluene volume content of the mixed solvent is 20 to30 percent, the eluting solution D is mixed solvent of petroleum ether and ethyl acetate, and the eluting solution is absolute ethanol or absolute methanol; collecting different elutriants in turn, evaporating the elutriants till dryness, and cooling the dry materials to obtain the components a, b, c, d and e of different groups; adding the components a, b, c, d and e of different groups into a kettle type reactor, heating the components to 10 to 80 DEG C, dripping a sulfonating agent to perform reactions for 30 minutes, and neutralizing the coarse sulfonates by using 20 to 30 mass percent aqueous solution of NaOH till the PH value is between 7 and 8; and purifying the coarse sulfonates. The method has the advantages of greatly reducing the use of highly toxic benzene, reducing harm caused to the bodies of operators, along with large single-pass sample size.

Description

technical field [0001] The invention belongs to a preparation method related to a sulfonate, in particular to a method for preparing different family components of petroleum distillate oil by column chromatography, and using the family components of the distillate oil as raw materials to prepare sulfonate Methods. Background technique [0002] Petroleum sulfonate is an anionic surfactant synthesized from distillate oil. It has strong interfacial activity, good compatibility with crude oil, good water solubility, low price and easy access to raw materials. It has good application in tertiary oil recovery. prospect. However, due to the complex composition of petroleum distillate oil, not only the distillate oil components in different oil fields are different, but also the distillate oil in different blocks of the same oil field is also different, and even the distillate oil produced in different periods will have some differences in composition. This is one of the main fact...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07C309/62C07C303/32
Inventor 牛金平李秋小黄述州韩亚明韩向丽谷惠先
Owner 中轻化工绍兴有限公司