Method and device for removing hydrogen chloride and residual chlorine from liquid chlorinated paraffin

A chlorinated paraffin and dehydrochlorination technology, which is applied in liquid degassing, chemical instruments and methods, separation methods, etc., can solve problems such as unstable product quality, high energy consumption, and small output, and achieve liquid film thickness and uniformity. Continuous operation, the effect of thin liquid film thickness

Active Publication Date: 2015-03-18
DANYANG CITY AUX CHEM PLANT
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Problems solved by technology

This method overcomes the shortcomings of the prior art of intermittent ope

Method used

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  • Method and device for removing hydrogen chloride and residual chlorine from liquid chlorinated paraffin
  • Method and device for removing hydrogen chloride and residual chlorine from liquid chlorinated paraffin

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Experimental program
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Embodiment 1

[0034]Turn on the wax oil liquid ring vacuum pump, model F2SK-2 corrosion-resistant liquid ring vacuum pump, pump the negative pressure of the degassing kettle to -0.09MPa, turn on the spinner motor, adjust the speed at 160r / min through frequency conversion, and turn on the jacket steam of the degassing kettle The valve steam pressure is controlled at 0.2MPa, open the chlorinated paraffin feed valve, control the feed rate at 2.5m3 / h, adjust the steam pressure of the degassing kettle jacket, and control the temperature of the chlorinated paraffin out of the degassing kettle between 80-90°C between. After adding the heat stabilizer ethylene glycol diglycidyl ether with a weight ratio of 3‰, the discharged chlorinated paraffin was evenly stirred. After testing, the heat loss was 0.2%, the color platinum-cobalt number was 50, and the chlorine content was 52%. . The detection indicators all meet the requirements of the HG 2092 chlorinated paraffin-52 product standard.

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Abstract

The invention relates to a method for removing hydrogen chloride and residual chlorine from liquid chlorinated paraffin, which comprises the following steps: (1) turning on a vacuum device, vacuumizing a degassing kettle; (2) turning on a throwing disc of the degassing kettle; (3) injecting steam or heat transfer media into the jacket of the degassing kettle; (4) opening a liquid chlorinated paraffin feed valve on the degassing kettle, allowing the liquid chlorinated paraffin to flow into the rotating throwing disc; (5) heating the chlorinated paraffin liquid film during continuous falling through the degassing kettle jacket; (6) allowing the liquid chlorinated paraffin with hydrogen chloride and residual chlorine removed to flow out from the bottom of the degassing kettle, adding a stabilizing agent into the liquid chlorinated paraffin with hydrogen chloride and residual chlorine removed, stirring uniformly, and metering by a chlorinated paraffin metering pump. The method is simple in process, easy to control, continuous in production, large in productivity, simple in equipment investment, stable in quality of the prepared product, and easy for tail gas treatment, can continuously and automatically remove a large amount of hydrogen chloride and residual chlorine in liquid chlorinated paraffin, and guarantee the continuous production of liquid chlorinated paraffin.

Description

technical field [0001] The invention relates to a method for dehydrochlorination and residual chlorine, in particular to a method for dehydrochlorination and residual chlorine of liquid chlorinated paraffin with sufficient analysis and continuous production. Background technique [0002] Chlorinated paraffin is a chlorinated derivative of paraffin. It has the advantages of low volatility, flame retardancy, good electrical insulation, and low price. It can be used as a flame retardant and PVC co-plasticizer, and is widely used in the production of cables. Materials, floor materials, hoses, artificial leather, rubber and other products. And the research and development of polyurethane materials used in coatings, lubricating oils, etc. have a history of more than 60 years. In recent years, with the continuous expansion of the application of PU materials, the number of its products has leapt to the top of the world's six largest synthetic materials , the global output is...

Claims

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Application Information

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IPC IPC(8): B01D19/00C10G73/40
Inventor 唐慧建冯玉平王振华
Owner DANYANG CITY AUX CHEM PLANT
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