METHOD FOR MANUFACTURING OF CATALYST FOR LIQUIDPHASE HYDRATION OF 2',4',4-TRINITROBENZANILIDE
FIELD: oil and gas industry.SUBSTANCE: invention is related to petrochemical analysis, in particular to method for manufacturing of catalyst for liquidphase hydration of 2',4',4-trinitrobenzanilide (TNBA) with obtainment of aromatic polyamine compounds widely used as intermediate products...
Gespeichert in:
Hauptverfasser: | , , , , |
---|---|
Format: | Patent |
Sprache: | eng ; rus |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | FIELD: oil and gas industry.SUBSTANCE: invention is related to petrochemical analysis, in particular to method for manufacturing of catalyst for liquidphase hydration of 2',4',4-trinitrobenzanilide (TNBA) with obtainment of aromatic polyamine compounds widely used as intermediate products in production of dyes, heat-resistant polymers, synthesis of high-strength fibres, etc. The method for manufacturing of catalyst for liquidphase hydration of 2',4',4-TNBA includes impregnation of the cellular structure polyurethane matrix with ceramic slurry containing more than 30 wt % of ?-aluminium oxide with subsequent drying at temperature of 100-120°C, tempering at temperature of 1050-1070°C, subsequent impregnation of the obtained high-porous cellular carrier by alumina sol (?-AlO), drying at temperature of 100-120°C, tempering at temperature of 550-600°C, subsequent impregnation by aqueous solution of cobalt and iron nitrates at atmospheric temperature, tempering at 350-400°C, and upon tempering application of carbon nanotubes manufactured by methane pyrolysis at temperature less than 800°C, up to 0.15-0.20 wt % of the weight of the carrier with ?-AlO, then treatment with palladium nitrate solution, drying at temperature less than 120°C and tempering at temperature of 430-450°C, recovery of the obtained palladium oxide at the carrier by molecular hydrogen in nitrogen till palladium metal is obtained at temperature of 50-55°C.EFFECT: reduction of the reaction duration, increase in the reaction rate due to increase of the catalyst specific surface, TNBA load to the catalyst, output of the target product.4 ex
Изобретение относится к нефтехимическому синтезу, в частности к каталитическому жидкофазному способу гидрирования 2',4',4-тринитробензанилида (ТНБА) с получением ароматических полиаминосоединений, нашедших широкое применение как промежуточные продукты в производстве красителей, термостойких полимеров, синтезе высокопрочных волокон и т.д. Способ получения катализатора для жидкофазного гидрирования 2',4',4-тринитробензанилида включает пропитку полиуретановой матрицы ячеистой структуры шликером, содержащим более 30 мас.% α-оксида алюминия с последующей подсушкой при температуре 100...120°C, прокалку при температуре 1050...1070°С, последующую пропитку полученного высокопористого ячеистого носителя алюмозолем (γ-АlO), сушку при температуре 100...120°С, прокалку при температуре 550...600°C, последующую пропитку водным раствором нитратов кобальта и железа под вакуумом |
---|