I-papermaking ikhiqiza i-alkali sulfide, i-caustic soda namanye ama-alkali ngesikhathi sokudonsa nokupheka.Izinhlanganisela zesibabule ezifana ne-H2S, i-methyl mercaptan, i-dimethyl mercaptan, namanye amagesi abolayo nawo akhiqizwa ngesikhathi sokudonsa, futhi igesi ye-chlorine nayo ikhiqizwa ngesikhathi sokufiphala kwe-pulp.Indawo yezitshalo isebenzisa amamitha-skwele ayi-120,000 weshidi lensimbi elakhiwe ngamandla, elisetshenziselwa kakhulu indawo ebiyelwe ngaphandle kokugqwala kophahla kanye nokufakwa kwensimbi embhoshongweni.
Imikhiqizo emisha ecwaningiwe futhi yathuthukiswa yinkampani yethu--ishidi lensimbi elihlanganisiwe lisetshenziswa kabanzi ku-metallurgy, salinization, umanyolo, ukuphrinta nokudaya, imboni yamakhemikhali, izitsha zobumba, i-electroplating, i-casting, i-chlor-alkali, izinsimbi ezingezona ayoni nezinye izimboni.Kusetshenziswa kabanzi ekuxhumaneni kwezimboni ezisezingeni eliphezulu nezimboni zezempi.
Siqinisekisa ukuthi iminyaka ehlala isikhathi eside ingaphezu kweminyaka eyishumi yeshidi lensimbi elakhiwe ngamandla.