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Continuous chloroparaffin production apparatus

A production device, chlorinated paraffin technology, applied in the field of continuous chlorinated paraffin production device, can solve the problems of high chlorine content, production accidents, low chlorine conversion rate, etc., and achieve the effect of avoiding production accidents and preventing excessive heat release

Inactive Publication Date: 2008-02-27
SHANGHAI CHLOR ALKALI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Chinese patent CN02148592.5 discloses a continuous chlorinated paraffin production device, which uses a plurality of reactors in series for continuous production of chlorinated paraffins, but the defects of the device are very significant, the The inlet of the raw material chlorine gas of the device is set at the top of each reactor. Therefore, the distribution of the introduced chlorine gas is uneven, the local chlorination phenomenon is serious, and the "burning material" at the bottom of the reactor cannot be effectively solved, and the conversion rate of chlorine gas is not high. Simultaneous reaction The content of chlorine gas entrained in the generated hydrogen chloride tail gas is also high, which affects the product quality of by-produced hydrochloric acid, so production accidents often occur

Method used

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  • Continuous chloroparaffin production apparatus
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Experimental program
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Effect test

Embodiment 1

[0030] Adopt the device of Fig. 1, the reactor of Fig. 2 and the nozzle of Fig. 3, there are 5 reactors, prepare chlorinated paraffin.

[0031] The height H of the trapezoidal tube is 300 mm, the length of the upper bottom L1 is 50 mm, and the length L2 of the lower bottom is 100 mm.

[0032] The paraffin oil enters the reactor continuously through the paraffin oil inlet, and the chlorine gas enters the reactor from the bottom of the reactor through the circulating material and the chlorine gas inlet device. Under the catalysis of the ultraviolet light emitted by the ultraviolet lamp, the chlorination reaction is carried out, and the reaction product of the upper stage Enter the reactor of the next stage to continue the reaction. The reaction product of the last reactor enters the subsequent section for refining, and the hydrogen chloride produced by the reaction enters the tail gas treatment system from the tail gas outlet at the top of the reactor;

[0033] The reaction prod...

Embodiment 2

[0041] Adopt the device identical with embodiment 1, prepare chlorinated paraffin, select 3 reactors for use.

[0042] The technological conditions of the reaction are as follows: the reaction temperature is 105°C, the reaction pressure is 0.04Mpa, and the flow rate of paraffin oil is 1.875m 3 / h, the flow rate of chlorine gas is 800m 3 / h, the volume ratio of circulating material to chlorine gas is:

[0043] Circulating material: chlorine = 1:20;

[0044] The residence time of the material in the reactor is 25 hours,

[0045] The power of the ultraviolet lamp is 5 kW;

[0046] The average chlorine content gradient of the materials between each reactor is 20%, so as to ensure that the discharge of the last reactor reaches the specified index, and the specific gravity of the materials of each reactor is as follows:

[0047] The second reactor: 18 (70°C Bomido), the third reactor: 27 (70°C Bomido); the molecular weight of paraffin oil is 200. The conversion rate was 99%.

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Abstract

The invention discloses a continuous installation for producing chlorcosane which contains many catalyst cases, external coolers and circulating pumps connected in series by pipe lines; it is characterized in that inlet ducts (103) for cycle stocks and chlorine gases is installed at the bottom of the said reactor, passing by the the forced circulating pumps, then passing by the bottom of the reactor, the reaction stocks and the chlorine gases are premixed in the inlet ducts for cycle stocks and chlorine gases, then they flow from bottom to top in the reactor, at the same time, they quicken the circulatory flow from bottom to top together with the materials in the autoclave to prevent the materials-burning phenomena from localized overheating of the chlorination reaction, accordingly, this can avoid the industrial accident.

Description

technical field [0001] The invention relates to a chlorinated paraffin production device, in particular to a continuous chlorinated paraffin production device. Background technique [0002] Chlorinated paraffin is an important industrial raw material, such as an auxiliary plasticizer for polyvinyl chloride, and can also be used as an anticoagulant, tackifier, paint stabilizer, etc. [0003] Due to the importance of chlorinated paraffins in industrial applications, the optimization of their production equipment and production methods has attracted widespread attention. [0004] Chinese patent CN02148592.5 discloses a continuous chlorinated paraffin production device, which uses a plurality of reactors in series for continuous production of chlorinated paraffins, but the defects of the device are very significant, the The inlet of the raw material chlorine gas of the device is set at the top of each reactor. Therefore, the distribution of the introduced chlorine gas is uneven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/38
Inventor 孙建平江雄旺孙国连唐征生
Owner SHANGHAI CHLOR ALKALI CHEM
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