A Process For Removing A Heterogeneous Catalyst From A Reaction Product And A Process For Producing An Aromatic Amine

• Main Authors: MUELLER, PATRIC, WEBER, ANDREAS, DAI, YUAN SHEN, RENZE, PETER
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2017
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

A process for removing a heterogeneous catalyst from a reaction product and a process for producing an aromatic amine Abstract The invention relates to a process for removing a heterogeneous catalyst from a crude reaction product (9) which comprises a liquid phase and a particulate catalyst, comprising at least one of the following steps: (a) feeding the crude reaction product (9) into a hydrocyclone (11) in which at least part of the particulate catalyst is removed and taking off a product stream (13) depleted in catalyst and a stream (15) enriched in catalyst; (b) feeding the crude reaction product (9) or, when step (a) also is carried out, the product stream (13) depleted in catalyst of step (a) into a settler (17), the settler (17) comprising a conical bottom part (19) wherein nozzles (27) are arranged in the conical bottom part (19) such that by a stream fed through the nozzles (27) a swirl is generated in the conical bottom part (19) of the settler (17), and taking off a product stream (29) and a cataly