A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A PROCESS FOR THE CONTINUOUS PREPARATION OF ALPHA-CALCIUM SULPHATE HEMIHYDRATE
The present application describes a process for the continuous production of alpha-calcium sulphate hemihydrate, the process comprising the steps of: providing particulate gypsum; providing water; mixing the particulate gypsum and the water to form a gypsum slurry; and maintaining said gypsum slurry under raised pressure and temperature to convert the particulate gypsum into alpha-calcium sulphate hemihydrate and provide an alpha-calcium sulphate hemihydrate slurry. Additionally, the particulate gypsum comprises a D10 value greater than or equal to 2 µm, a D90 value smaller than or equal to 90 µm and a D50 value smaller than or equal to 25 µm. Particulate gypsum for use in the process is also provided.
A PROCESS FOR THE CONTINUOUS PREPARATION OF ALPHA-CALCIUM SULPHATE HEMIHYDRATE
The present application describes a process for the continuous production of alpha-calcium sulphate hemihydrate, the process comprising the steps of: providing particulate gypsum; providing water; mixing the particulate gypsum and the water to form a gypsum slurry; and maintaining said gypsum slurry under raised pressure and temperature to convert the particulate gypsum into alpha-calcium sulphate hemihydrate and provide an alpha-calcium sulphate hemihydrate slurry. Additionally, the particulate gypsum comprises a D10 value greater than or equal to 2 µm, a D90 value smaller than or equal to 90 µm and a D50 value smaller than or equal to 25 µm. Particulate gypsum for use in the process is also provided.
A PROCESS FOR THE CONTINUOUS PREPARATION OF ALPHA-CALCIUM SULPHATE HEMIHYDRATE
VERFAHREN ZUR KONTINUIERLICHEN HERSTELLUNG VON ALPHA-CALCIUMSULFAT-HALBHYDRAT
PROCÉDÉ DE PRÉPARATION CONTINUE DE SULFATE DE CALCIUM ALPHA HÉMIHYDRATÉ
MAGAUD LIONEL (author) / TRAN BINH (author) / FRANCY OLIVIER (author) / COLOMBO JOËL (author)
2023-09-27
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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Thermoluminescence and reactivity of calcium sulphate hemihydrate
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