(N)-Alkyl:arylamine catalytic prodn. - from arylamine and alcohol or ether and by introducing reactants at reaction temp. or above
In parent patent, the continuous prodn. of N-alkylarylamines (I) comprises gas-phase reaction of arylamines (II) with alcohols (III) and/or dialkyl ethers (IV) at 180-450 degrees C in presence of carriers contg. oxyacids of P. The catalyst used is silica of internal surface 50-500 m2/g and H3PO4 con...
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| creator | DECKER,MARTIN,.DR HUPFER,LEOPOLD,.DR DOCKNER,TONI,.DR KRUG,HERBERT TOUSSAINT,HERBERT,.DR |
| description | In parent patent, the continuous prodn. of N-alkylarylamines (I) comprises gas-phase reaction of arylamines (II) with alcohols (III) and/or dialkyl ethers (IV) at 180-450 degrees C in presence of carriers contg. oxyacids of P. The catalyst used is silica of internal surface 50-500 m2/g and H3PO4 content 0.1-20 wt.% and during the reaction H3PO4 and/or alkyl phosphates are continuously supplied to the catalyst. In this addition (II) and (III) or (IV) are introduced as gases at a temp. equal to or greater than the reaction temp. By using the reactants to heat the catalyst, surface coking is reduced. |
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The catalyst used is silica of internal surface 50-500 m2/g and H3PO4 content 0.1-20 wt.% and during the reaction H3PO4 and/or alkyl phosphates are continuously supplied to the catalyst. In this addition (II) and (III) or (IV) are introduced as gases at a temp. equal to or greater than the reaction temp. 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The catalyst used is silica of internal surface 50-500 m2/g and H3PO4 content 0.1-20 wt.% and during the reaction H3PO4 and/or alkyl phosphates are continuously supplied to the catalyst. In this addition (II) and (III) or (IV) are introduced as gases at a temp. equal to or greater than the reaction temp. 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The catalyst used is silica of internal surface 50-500 m2/g and H3PO4 content 0.1-20 wt.% and during the reaction H3PO4 and/or alkyl phosphates are continuously supplied to the catalyst. In this addition (II) and (III) or (IV) are introduced as gases at a temp. equal to or greater than the reaction temp. By using the reactants to heat the catalyst, surface coking is reduced.</abstract><edition>2</edition><oa>free_for_read</oa></addata></record> |
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| title | (N)-Alkyl:arylamine catalytic prodn. - from arylamine and alcohol or ether and by introducing reactants at reaction temp. or above |
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