Celitement quality parameter determination by online NIR spectroscopy Available to Purchase

A new process for the manufacture of a novel hydraulic binder (Celitement) with a high potential for saving energy and reducing carbon dioxide emissions was developed at the Karlsruhe Institute of Technology. To obtain the ideal process conditions and to monitor the optimal product quality of the binder, it was necessary to develop a measurement system for the online determination of certain quality parameters. A method for the direct calculation of different quality parameters of both precursor and final product from online measured near-infrared (NIR) spectra is presented in this article. A successful transformation between calibration models gained with laboratory and online NIR is also demonstrated. This enables optimisation of the calibration models on a laboratory scale and a seamless transfer to industrial scale due to changes in composition of the raw materials, formulation or processing parameters.