The invention provides a novel
chlorobenzene production process.
Chlorobenzene used in the novel
chlorobenzene production process comprises the following raw materials:
anhydrous benzene,
chlorine, acatalyst and a positioning agent. The novel production process comprises the following steps: preparing the
anhydrous benzene; enabling the
anhydrous benzene to flow out from the bottom of a benzene high-level tank, metering by using a flowmeter, and continuously putting into a chlorinator from the bottom of the chlorinator; buffering qualified
chlorine made after gasification of
liquid chlorine by using a
chlorine buffer tank, introducing into the chlorinator from the bottom of the chlorinator to flow upwards together with the anhydrous benzene along flows in a same direction, carrying out areaction under the action of the catalyst and the positioning agent in the chlorinator so as to generate a chlorination liquid, and carrying out aftertreatment on the chlorination liquid, thereby obtaining
chlorobenzene. By adopting the novel production process provided by the invention, the problem that a great deal of
wastewater is generated from
water washing and alkali washing in the conventional method can be avoided, no
wastewater is generated, in addition, the catalyst is long in service life, the equipment is long in service life, the detection cycle can be prolonged, a product made byusing the process is high in purity, and due to adoption of an
iron catalyst and chelate EDTA-Fe with iron as the center as the positioning agent, the process is low in
wastewater generation rate andgreen,
environmentally friendly and fee of
pollution.