Method for producing chlorinated paraffin-52 by combining thermal chlorination process and photocatalysis process

A chlorinated paraffin and photocatalysis technology, applied in petrochemical modification and other directions, can solve the problems of low chlorine conversion rate, uneven ultraviolet irradiation, uneven chlorine distribution, etc., to shorten the reaction time, heat evenly, and save energy. The effect of energy costs

A chlorinated paraffin and photocatalysis technology, applied in petrochemical modification and other directions, can solve the problems of low chlorine conversion rate, uneven ultraviolet irradiation, uneven chlorine distribution, etc., to shorten the reaction time, heat evenly, and save energy. The effect of energy costs

CN107142124AActive Publication Date: 2017-09-08广西盛亚科技集团有限公司 +1
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  • Method for producing chlorinated paraffin-52 by combining thermal chlorination process and photocatalysis process

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Experimental program
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Effect test

Embodiment 1

[0030] see figure 1 Shown, a kind of thermal chlorination method combines the method for producing chlorinated paraffin-52 with photocatalytic method, comprises the following steps:

[0031] 1) Prepare a filter screen 2, the filter screen 2 is composed of the following materials in parts by weight: 10 parts of carbon fiber, 20 parts of silica gel, 5 parts of polyurethane resin, and 1 part of seaweed particles;

[0032] 2) Melting the solid paraffin and flowing through the filter screen 2 to obtain refined liquid paraffin;

[0033] 3) the refined liquid paraffin is passed into the reactor 5 added with the catalyst; the catalyst is 0.1% of the solid paraffin weight;

[0034] 4) The reactor 5 is rotated along the horizontal axis, and the refined liquid paraffin and the catalyst are mixed for 10 minutes at a temperature of 80° C.;

[0035] 5) Feed chlorine gas into the position of the horizontal axis where the reactor 5 rotates, keep the reactor rotating along the horizontal axi...

Embodiment 2

[0043] see figure 1 Shown, a kind of thermal chlorination method combines with photocatalytic method to produce the method for chlorinated paraffin-52, comprises the following steps:

[0044] 1) Prepare a filter screen 2, the filter screen 2 is composed of the following materials in parts by weight: 15 parts of carbon fiber, 40 parts of silica gel, 10 parts of polyurethane resin, and 5 parts of seaweed particles;

[0045] 2) Melting the solid paraffin and flowing through the filter screen 2 to obtain refined liquid paraffin;

[0046] 3) said refined liquid paraffin is passed into the reactor 5 that is added with catalyzer; Said catalyzer is 0.2% of solid paraffin weight;

[0047] 4) Rotating the reactor 5 along the horizontal axis, mixing the refined liquid paraffin and the catalyst at a temperature of 100° C. for 10 minutes;

[0048] 5) Feed chlorine gas into the position of the horizontal axis where the reactor 5 rotates, keep the reactor rotating along the horizontal axis...

Embodiment 3

[0056] see figure 1 Shown, a kind of thermal chlorination method combines the method for producing chlorinated paraffin-52 with photocatalytic method, comprises the following steps:

[0057] 1) Prepare a filter screen 2, the filter screen 2 is composed of the following materials in parts by weight: 12 parts of carbon fiber, 30 parts of silica gel, 8 parts of polyurethane resin, and 3 parts of seaweed particles;

[0058] 2) Melting the solid paraffin and flowing through the filter screen 2 to obtain refined liquid paraffin;

[0059] 3) said refined liquid paraffin is passed into the reactor 5 that is added with catalyzer; Said catalyzer is 0.2% of solid paraffin weight;

[0060] 4) The reactor 5 is rotated along the horizontal axis, and the refined liquid paraffin and the catalyst are mixed for 8 minutes at a temperature of 90° C.;

[0061] 5) Feed chlorine gas into the position of the horizontal axis where the reactor 5 rotates, keep the reactor rotating along the horizontal...

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Abstract

The invention discloses a method for producing chlorinated paraffin-52 by combining a thermal chlorination process and a photocatalysis process. The method comprises the following steps: 1) preparing a filter screen; 2) melting solid paraffin, and enabling the molten paraffin to flow through the filter screen to obtain refined liquid paraffin; 3) feeding the refined liquid paraffin into a reactor with a catalyst; 4) rotating the reactor along a transverse axis, and mixing for 5-10min at a temperature of 80-100 DEG C; 5) introducing chlorine to the position of the transverse axis where the reactor rotates; keeping the reactor rotating along the transverse axis; irradiating the reactor with a black light lamp; performing photo-initiation for 40-60min at 70-75 DEG C; performing a chlorination reaction for 2-3h at 50-70 DEG C; 6) stopping the chlorination reaction; collecting the product of the chlorination reaction; adding a stabilizer and a modifier; stirring uniformly; cooling to obtain chlorinated paraffin-52. By adopting the transversely rotating reactor, the ultraviolet irradiation is uniform, the heating is uniform, and a uniform reaction is realized.

Description

technical field [0001] The invention relates to the field of chlorinated paraffin, in particular to a method for producing chlorinated paraffin-52 by combining a thermal chlorination method and a photocatalytic method. Background technique [0002] Chlorinated paraffins, also known as chlorocarbons, are chlorinated derivatives of paraffins. They have the advantages of low volatility, flame retardancy, good electrical insulation, and low price. They can be used as flame retardants and PVC co-plasticizers. Widely used in plastics, rubber and other products, and also as additives in coatings and lubricating oils. At present, the industrial production methods of chlorinated paraffin include thermal chlorination method, catalytic chlorination method and photochlorination method. The thermal chlorination method uses thermal energy to obtain chlorine free radicals. It operates smoothly and is widely used in industry, but the color of the product cannot be well guaranteed. The pho...

Claims

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Application Information

Patent Timeline
08 Sep 2017
Publication
CN107142124A
IPC
C10G73/38
CPC
C10G73/38
Inventors
程昊; 黄文艺