Gas-phase phosgenation reactor and application thereof in synthesis of organic isocyanates

• Main Author: XUE YONGHE
• Format: Patent
• Language: Chinese; English
• Published: 23.02.2018
• 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

The invention provides a gas-phase phosgenation reactor, comprising a reactor body and a mixer body, wherein a cover plate is arranged at the top end of the reactor body, the reactor body is divided by an inner pipe layer, a middle pipe layer and a reactor outer layer into a center chamber, a middle interlayer and an outer jacket, as three passages, from inside to outside, the mixer body comprisesan organic amine and inert gas mixture passage pipe and a mixer lining, the mixer body is passed through the cover plate on the reactor body and positioned in the center chamber of the inner pipe layer of the reactor body, and an annulus is reserved between the outer wall of the mixer body and the inner wall of the inner pipe layer of the reactor body. The mixer herein is divided into multiple independent assembly parts, so that working is safer, simpler and more convenient; the annulus is reserved between the outer wall of the mixer body and the inner wall of the inner pipe layer of the reactor body, so that the gas