Optical properties of green liquors and the use of commercial refractometry to monitor their composition in the production of sulfate cellulose

摘要

At the level of the requirements of refractometric technologies, this paper presents the results of measurements of the refractive index, its concentration and temperature dependences, and also the UV absorption in green liquors formed in the production of sulfate cellulose. The design features and technical-operational parameters of a commercial refractometer for monitoring the overall alkalinity of green liquors are briefly considered.