Je was op zoek naar: countercurrent (Engels - Sloveens)

the substance is purified by steam stripping or by countercurrent steam distillation
snov čistimo s kapljajočo ali protitočno parno destilacijo

raffinates (petroleum), catalytic reformer ethylene glycol-water countercurrent exts.;
rafinati (zemeljsko olje), katalitski reforming, protitočna ekstrakcija s sistemom etilenglikol-voda;

raffinates (petroleum), catalytic reformer ethylene glycol-water countercurrent extracts; low boiling point modified naphtha
rafinati (zemeljsko olje), katalitski reforming, protitočna ekstrakcija s sistemom etilenglikol-voda; modificirana nafta z nizko temperaturo vrelišča

"internal contactors" of the columns are segmented trays which have an effective assembled diameter of 1,8 m or greater, are designed to facilitate countercurrent contacting and are constructed of stainless steels with a carbon content of 0,03 % or less.
„notranji kontraktorji“ v stolpih so ločeni predelki, ki imajo efektivni skupni premer najmanj 1,8 m in so izdelani tako, da olajšajo protitočno gibanje, izdelani pa so iz nerjavnega jekla, ki ima delež ogljika največ 0,03 %.