Self circulation heat exchange method for materials in production of chlorinating paraffin-52 and chlorination reaction device therefor

A technology of chlorinated paraffin and chlorinated reaction kettle, which is applied in the direction of petrochemical modification, etc., can solve the problems of limiting the reaction speed of chlorinated wax-52, increasing equipment investment and maintenance costs, affecting the quality of chlorinated wax-52, etc. Pollution and safety accidents, improving equipment utilization, and increasing the effect of chlorine intake

Inactive Publication Date: 2009-09-30
HENAN CHEM IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the technology removes excess heat, it also has drawbacks
One is to increase equipment investment and maintenance costs, the other is to consume electric energy, and the third is under the conditions of higher temperature and the presence of chlorine and hydrogen chloride, once the circulating pump fails, it will easily cause safety and environmental pollution accidents
[0015] To sum up, since the traditional production of

Method used

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  • Self circulation heat exchange method for materials in production of chlorinating paraffin-52 and chlorination reaction device therefor
  • Self circulation heat exchange method for materials in production of chlorinating paraffin-52 and chlorination reaction device therefor
  • Self circulation heat exchange method for materials in production of chlorinating paraffin-52 and chlorination reaction device therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 1. Heat the liquid paraffin, raise the temperature to 80-90°C and let it stand for 1-8 hours. After the solid impurities settle, draw or pump the clarified liquid paraffin into the main and auxiliary chlorination reaction kettles (volume 4.15m 3 ), each kettle is 2500Kg, and the catalytic light source lamp in the kettle is turned on.

[0051] 2. After the liquid chlorine is vaporized in the gasification tank at 45°C, the pressure is stabilized by the buffer tank to stabilize the pressure at 130KPa (gauge pressure). The chlorine gas flow rate of 213Kg / h enters the main reactor through the chlorine pipe to chlorinate the liquid paraffin. Reaction, chlorination reaction temperature is controlled at 105°C, chlorination is about 24 hours, and when the chlorine content reaches 52%-54%, the reaction is stopped, and the crude product of chlorine wax-52 is pumped into the degassing kettle, and the air compressor is turned on. Blow compressed air to remove dissolved hydrogen chlo...

Embodiment 2

[0054] Heat 2500kg of liquid paraffin, raise the temperature to 85°C and stand still for 4 hours, separate out 0.2kg of solid impurities and sediment, pump the clarified liquid into the chlorination reaction kettle (the kettle has a volume of 4.15m3), and turn on the catalytic light source lamp in the kettle.

[0055] The liquid chlorine passes through the gasification tank, and after being gasified at 45°C, the buffer tank stabilizes the pressure at 120KPa, and flows into the main tank of the chlorination tank at a flow rate of 230Kg / h to carry out the chlorination reaction. The temperature of the chlorination reaction is controlled at 105°C. After 24 hours, sample and analyze the chlorine content to 52.4%, stop the reaction, pump into the degasser, turn on the air compressor, blow off a small amount of hydrogen chloride and chlorine dissolved in the feed liquid with compressed air, add 10kg of stabilizer, and obtain chlorinated paraffin -52 products 5112kg. The tail gas comi...

Embodiment 3

[0057] Heat 2350kg of liquid paraffin, raise the temperature to 90°C and stand still for 2 hours, separate out 0.17kg of solid impurities and sediment, pump the clarified liquid into the chlorination reaction kettle (the kettle has a volume of 4.15m3), and turn on the catalytic light source lamp in the kettle.

[0058] The liquid chlorine passes through the gasification tank, and after being vaporized at 40°C, the pressure is stabilized at 100KPa through the buffer tank, and then passed into the main tank of the chlorination tank at a flow rate of 210Kg / h to carry out the chlorination reaction. The temperature of the chlorination reaction is controlled at 108°C. After 24 hours, sample and analyze the chlorine content to 51.53%, stop the reaction, pump into the degassing kettle, turn on the air compressor, blow off a small amount of hydrogen chloride and chlorine dissolved in the feed liquid with compressed air, add 9kg of stabilizer, and obtain chlorinated paraffin -52 product ...

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Abstract

The invention provides a self circulation heat exchange method for materials in production of chlorinating paraffin-52 and a chlorination reaction device therefor. The method comprises the steps that: a, liquid paraffin is added into an automatic circulation main and auxiliary chlorination reaction kettle provided with a catalytic light source and a heat exchanger outside the kettle, and a catalytic light source lamp is turned on; b, liquid chlorine is introduced into a gasification kettle, stabilized by an accumulator still, and is introduced into a main kettle of the chlorination reaction kettle at a chlorine flowrate of between 200 and 230Kg/h, the chlorination temperature is controlled to be between 100 and 110 DEG C, the reaction is stopped when the chlorine content analyzed in a taken sample is between 50 and 54 percent to obtain a crude product of the chlorinating paraffin-52, dissolved chlorine and chlorine hydride in the crude product of the chlorinating paraffin-52 are removed by a degasification kettle, and then a stabilizing agent is added to obtain a finished product of the chlorinating paraffin-52; and c, gas coming out of the main kettle of the chlorination reaction kettle enters an auxiliary kettle of the chlorination reaction kettle, gas coming out of the auxiliary kettle of the chlorination reaction kettle passes through a graphitic absorber, a water falling film is used for absorbing the chlorine hydride in the gas to prepare hydrochloric acid, micro chlorine and chlorine hydride contained in tail gas which is discharged by the graphic absorber pass through a waste gas processor and are absorbed by water solution of sodium hydroxide to generate sodium hypochlorite and sodium chloride.

Description

technical field [0001] The invention relates to a production process of chlorinated paraffin-52 (abbreviated as chlorinated paraffin-52), in particular to a material self-circulating heat exchange method in the production of chlorinated paraffin-52 and a chlorination reaction device thereof. Background technique [0002] Chlorinated paraffin-52 (referred to as chlorine wax-52) is C 12 ~C 18 Chlorinated derivatives of n-alkanes having the general formula C n h 2n+2-m Cl m , wherein the chlorine content is 50% to 54% by mass (calculated as 52% in this article). It is insoluble in water and lower alcohols, but soluble in mineral oil, aromatic hydrocarbons, ether, acetone, etc. It has the characteristics of non-combustibility, non-toxicity, anti-oxidation, etc., and is compatible with plasticizers. It can be used as auxiliary plasticizer and flame retardant in plastic and rubber products, and can be used as extreme pressure agent in lubricating oil. The theoretical chlorin...

Claims

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Application Information

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IPC IPC(8): C10G73/38
Inventor 王宏力谢云漫师传兴刘兴李敏孟伟陈洁袁竹青袁林白应分
Owner HENAN CHEM IND RES INST
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