Continuous nitration method of benzene series
The invention relates to the technical field of chemical engineering, in particular to a continuous nitration method of benzene series. According to the method provided by the invention, a loop reactor is adopted for nitration reaction, the loop reactor comprises a first-stage tubular reactor, a sec...
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| creator | YU XUEZHENG SUN QIANG WANG YANG ZHU HAIFENG WANG YUANCHAO LIU WENJING ZHENG TANGMING |
| description | The invention relates to the technical field of chemical engineering, in particular to a continuous nitration method of benzene series. According to the method provided by the invention, a loop reactor is adopted for nitration reaction, the loop reactor comprises a first-stage tubular reactor, a second-stage tubular reactor and a circulating pump which are communicated with one another, and benzene series, fuming nitric acid and sulfuric acid continuously enter the loop reactor respectively; under the action of the circulating pump, the circulating materials circularly flow between the first-stage tubular reactor and the second-stage tubular reactor to generate nitration reaction, the ratio of the circulating flow velocity to the total feeding flow velocity is (30-500): 1, and the circulating flow velocity is far greater than the total feeding flow velocity, so that the reaction materials can be quickly dispersed by a large amount of circulating materials after entering the loop reactor, and the reaction effi |
| format | Patent |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Continuous nitration method of benzene series |
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