EP3541765 (A1)

Process and apparatus for calcination of gypsum

(22) 18.11.2016

(43) 25.09.2019

(57) Summary of the corresponding patent WO2018091062 (A1): The invention pertains to a process for modifying gypsum, wherein a continuous feed of raw gypsum is provided; the water content of the raw gypsum is determined in the continuous feed by near infrared spectroscopy (NIR) measurement; the raw gypsum is calcined in a calcination unit at a fire rate to remove water from the raw gypsum and to obtain a continuous feed of calcined gypsum having a water content within a selected range; a water content of the calcined gypsum is determined by near infrared spectroscopy, and the fire rate is adjusted based on the water content of the raw gypsum and of the calcined gypsum. Further, the invention pertains to an  apparatus for performing said process.

(71) Knauf Gips KG (DE)

Knauf Gips KG 97346 Iphofen
This article appeared in

ZKG 12/2019

This article appeared in

ZKG 12/2019

SPOTLIGHT
Carbon footprint remains challenge
 
COMPANIES
Expansion of production capacities

EVENTS
Review of 15th TÇMB

PROCESS
Influence of mineralogy and microstructure of clinker
 
MATERIALS
Mechanical properties of Portland slag cement

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