盐酸副玫瑰苯胺法
pararosaniline hydrochloride
hydrochloric Para-rosaniline method
pararosaniline hydrochloric spectrophotometry
Pararosaniline hydrochloride spectrophotometry
胺法脱硫
amine process desulfurization
amine sweetening
amine desulfurization
alkanolamine desulfurization
Aqueous amine desulfurization
desulfurization with organic amine
硫化胺法
ammonium sulphide method
sulfidization-amine method
三乙胺法
Triethylamine set process