Ukuhlanza i-Sodium Hydrosulfide: Isizinda kanye Nokuqonda

Embonini kaphethiloli namakhemikhali, izinqubo zokuhlanza ezifana nokuhluzwa kwe-vacuum kanye nokuqhekeka kwe-catalytic zivame ukukhiqiza amagesi ane-asidi. Lawa magesi ane-asidi ngokuvamile aqukethe i-85%–95% ye-hydrogen sulfide (H₂S), i-3%–10% ye-carbon dioxide (CO₂), amagesi e-organic angu-2%–5%, kanye nezinye izingxenye ezingu-0.5%–3%.

Izindawo zokuhlanza ezincane neziphakathi zivame ukuphatha la magesi anobuthi ngokuwamunca ngesisombululo se-sodium hydroxide (NaOH) esingu-30%. I-NaOH isabela ne-H₂S ukuze yakhe i-sodium hydrosulfide (NaHS). Lapho ukugcwala kwe-NaHS esixazululweni kufinyelela ku-30%, isixazululo sidlula enkambisweni yokugcwala. Ngemva kokuphelelwa amanzi emzimbeni kanye nokugcwala, okuqukethwe kwe-NaHS kuyanda kufinyelele ku- 70%, bese i-NaHS encibilikisiwe inqunywa ibe ama-flakes.

Kodwa-ke, njengoba amagesi ane-asidi aqukethe i-CO₂, ukungcola okufana ne-sodium carbonate (Na₂CO₃) kukhiqizwa ngesikhathi sokwelashwa, okunciphisa ubumsulwa bomkhiqizo we-NaHS.

Ngaphezu kwalokho, lapho kusetshenziswa ama-flaker e-open-drum ukusika i-NaHS encibilikisiwe, i-NaHS ivame ukusabela nomoya-mpilo emoyeni, yakhe i-sodium thiosulfate (Na₂S₂O₃), evame ukuwohloka futhi kube nzima ukuyigcina. Ukusika okuvulekile kukhipha namagesi acasulayo, kungcolise indawo yokukhiqiza.

Chofoza lapha ukuthola isilinganiso esincishisiwe se-sodium hydrosulfide, kuzoba nezimanga.