ChemicalBook CAS DataBase List Tetrachloroethylene

Tetrachloroethylene synthesis

14synthesis methods

Product Name:Tetrachloroethylene
CAS Number:127-18-4
Molecular formula:C2Cl4
Molecular Weight:165.83

Tetrachloroethylene (PCE) was first prepared in 1821 and commercial production in the United States began in 1925. Several commercial grades are available that differ in the amount and type of added stabilizers (e.g., amines, phenols, and epoxides).
The industrial processes for production of tetrachloroethylene include threetechnical routes:
(1) chlorination of trichloroethylene and followed by dehydrochlorination.
(2) oxychlorination of ethylene.
(3) chlorination andpyrolysis of light hydrocarbon.
In China, the chlorination of trichloroethylene and dehydrochlorination process is mainly used for production of tetrachloroethylene, while the other two processes are widely used in other countries.

67-72-1
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$11.00/25g

127-18-4
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$15.00/5G

Yield:127-18-4 97%

Reaction Conditions:

in tetrachloromethane at 300; for 0.000555556 h;Flow reactor;Pyrolysis;Temperature;

Steps:

3

After the mixture of perchloroethane and carbon tetrachloride by mass ratio of 1: 0.5,With the measurement of Li to 2ml / min flow rate into the diameter 2. Ocm,Length 2 m quartz glass reactor,At the same time, the reaction was carried out in a quartz glass reactor at a flow rate of 0.3 ml / min,The temperature of the quartz glass reactor was controlled at 300 ° C,The contact time of the raw material with the reactor was 2 s through flow control,The pyrolysis gas obtained at the outlet of the quartz glass reactor is condensed,The purity of 99% tetrachlorethylene was obtained by distillation. The sample was sampled from the outlet of the quartz glass reactor. The conversion of perchlorethylene was 98%, the selectivity of tetrachloroethylene was 99% and the reaction yield was 97%.

References:

CN104292069,2016,B Location in patent:Paragraph 0032; 0033

87-68-3 Synthesis