Ukusebenza okuyinhloko kanye nezici zesakhiwo:
Izingxenye eziyinhloko zokukhishwa yi-CH₂Cl₂, amafutha amhlophe kanye namanzi okulandelela. usebenzisa amaphuzu ahlukene abilayo ezinto ezintathu, ukukhishwa kwenziwa ngokushintshana ngochungechunge lwezinyathelo, ezifana ne-distillation yokuqala, i-atmospheric distillation, i-vacuum gas extraction, i-CH₂Cl₂ kanye nokuhlunga kwamafutha amhlophe. isisombululo sokukhipha sahlukaniswa futhi sahlanzwa ukuze kubuyiselwe i-CH₂Cl₂ (ukuhlanzeka > 99.97%) namafutha amhlophe (ukuhlanzeka > 99.97%) ukuze kuhlangatshezwane nezidingo zokuphinda zisetshenziswe kulayini wokukhiqiza nokunciphisa ukusetshenziswa kwezinto ezibonakalayo zesistimu yokukhiqiza. Yehlisa izindleko zokukhiqiza ifilimu yesihlukanisi.