METHOD OF FILTRATION OF THREE-PHASE REACTION MIXTURE Russian patent published in 2002 - IPC

FIELD: methods of filtration of three-phase reaction mixture including liquid phase, solid undissolved catalytic phase and gaseous phase. SUBSTANCE: at least part of three-phase reaction mixture is filtered at membrane filer; this part of mixture includes liquid phase containing nitric groups, gaseous phase containing hydrogen and solid catalytic phase containing nickel and/or Raney cobalt or metallic supported catalyst; catalyst is used repeatedly receiving at least part of filtrate containing reaction products. EFFECT: maximum reduction of solid agent arrested by filter. 10 cl, 1 ex