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Method for preparing turkey red oil by using microstructure reactors

A technology of microstructure reactor and Turkish red oil, which is applied in chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve the problems of low reaction safety performance, complicated preparation process, and low equipment utilization rate, and achieve the elimination of reaction Effects of hot spots, high sulfation levels, and fast stabilization times

Inactive Publication Date: 2013-05-08
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: in order to overcome the complexity of the present sulphated castor oil preparation process, the following disadvantages exist in the existing process: concentrated sulfuric acid needs to be added dropwise in the sulphation process, the reaction safety performance is low, the reaction is discontinuous, the reaction Long time, low utilization rate of equipment, high energy consumption in the salt washing process, long cycle, discontinuous reaction in the neutralization process, etc., and a method for preparing Turkish red oil using a microstructure reactor was proposed

Method used

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  • Method for preparing turkey red oil by using microstructure reactors
  • Method for preparing turkey red oil by using microstructure reactors
  • Method for preparing turkey red oil by using microstructure reactors

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Experimental program
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Embodiment 1

[0027] 98% concentrated sulfuric acid and castor oil were injected into the microstructure reactor A-1 with the temperature controlled at 40°C at a molar ratio of 4:1 through the high performance liquid chromatography pump, wherein the microstructure mixer was a heat exchange type microstructure reactor. Mixer (SIMHEX, IMM, Germany), its channel size is 25 * 25 * 20 (μ m), the microchannel reactor is the FEP tube of internal diameter 2mm, long 8000mm, after reacting 10min, the reaction product that obtains is mixed with saturated sodium sulfate The solution was pumped into the microstructure reactor A-2 for washing to remove excess concentrated sulfuric acid, wherein the microstructure mixer was a T-type mixer (mikroglas, Germany), the channel size was 200×25 (μm), and the washing temperature was controlled at 40°C , the microchannel reactor is a stainless steel tube with a length of 5000 mm and an inner diameter of 2 mm. The washing time is 200 s. The above salt washing is rep...

Embodiment 2

[0029] 95% concentrated sulfuric acid and castor oil were injected into the microstructure reactor A-1 with the temperature controlled at 40°C at a molar ratio of 4:1 through the high performance liquid chromatography pump, wherein the microstructure mixer was a heat exchange type microstructure reactor. Mixer (SIMHEX, IMM, Germany), its channel size is 25 * 25 * 20 (μm), the microchannel reactor is the FEP tube of inner diameter 2mm, long 8000mm, after reacting for 6.8min, the reaction product obtained is mixed with saturated chlorine The sodium chloride solution was pumped into the microstructure reactor A-2 for washing to remove excess concentrated sulfuric acid, wherein the microstructure reactor was a T-type mixer (mikroglas, Germany), the channel size was 200 × 25 (μm), and the washing temperature was controlled at At 20°C, the microchannel reactor is a stainless steel tube with a length of 500mm and an inner diameter of 2mm. The washing time is 20s, and the salt washing ...

Embodiment 3

[0031] 98% concentrated sulfuric acid and castor oil were injected into the microstructure reactor A-1 with a temperature control of 40°C at a molar ratio of 4:1 through a high performance liquid chromatography pump, wherein the microstructure mixer was a heat exchange type microstructure reactor. Mixer (SIMHEX, IMM, Germany), the channel size is 25 × 25 × 20 (μm), the microchannel reactor is a FEP tube with an inner diameter of 2mm, and the length is 200mm. After reacting for 0.5min, the reaction product obtained is mixed with saturated sulfuric acid The sodium solution was pumped into the microstructure reactor A-2 for washing to remove excess concentrated sulfuric acid, wherein the microstructure reactor was a T-type mixer (mikroglas, Germany), the channel size was 200×25 (μm), and the washing temperature was controlled at 20 ℃, the microchannel reactor is a stainless steel tube with a length of 500mm and an inner diameter of 2mm, the washing time is 20s, and the salt washin...

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Abstract

The invention relates to a method for preparing turkey red oil by using microstructure reactors, which comprises the steps of: taking concentrated sulfuric acid and castor oil as raw materials, sulfating in a microstructure reactor at first, then delivering the raw materials to the other microstructure reactor for salt washing, standing still, demixing, and neutralizing upper layer oil liquid with alkali liquor in the microstructure reactor to prepare the turkey red oil. The processes are all the processes featured by strong heat release or controlled by mass transfer; by adopting a micro-reaction technology provided by the invention, the method has the advantages of high safety, easiness for production operation, small floor area and the like.

Description

Technical field: [0001] The invention relates to a method for preparing an anionic surfactant, in particular to a method for preparing Turkish red oil using a microstructure reactor. Background technique: [0002] Turkey red oil is an ionizing anionic surfactant. It has heat resistance, cold resistance, hard water resistance and metal salt resistance and has certain acid resistance. Turkish red oil has a double bond in the molecular structure, the sulfate group (-OSO3) is located in the center of the molecule and the end group has a carboxyl group (-COO-), a long carbon chain hydrophobic group and a strong hydrophilic group, so its Calcium salt and magnesium salt have high solubility, strong resistance to hard water, and excellent wettability, permeability, emulsification performance and detergency. Its anionic surfactant is used as an activator and auxiliary agent in industry, for example: in the textile industry, it is used as a lubricant for printing and dyeing, and as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/08B01F17/38C09K23/08C09K23/38
Inventor 张利雄王斌曾昌凤王重庆徐南平
Owner NANJING TECH UNIV
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