公开(公告)号：US20230373854A1

公开(公告)日：2023-11-23

申请号：US18262254

申请日：2022-01-13

申请人： Saint-Gobain Placo

发明人： Rob Woollacott ,  Peter Sutton ,  Siva Kancharlapalli ,  Manish Patel ,  Binh Tran

IPC分类号： C04B11/036 ,  F27B15/12 ,  F27B15/14 ,  F27D7/02 ,  F27B15/10 ,  F27D17/00

CPC分类号： C04B11/036 ,  F27B15/12 ,  F27B15/14 ,  F27D7/02 ,  F27B15/10 ,  F27D17/004

摘要： The present application describes an industrial calciner for particulate material, wherein the industrial calciner comprises: a calcination vessel; and a gas supply system in fluid communication with the calcination vessel, the gas supply system configured to supply a flow of calcination gas to the calcination vessel, wherein the industrial calciner further comprises at least one electric heater configured to heat the calcination gas, the industrial calciner further comprising at least one humidity modifier and a humidity control system for controlling the output of the at least one humidity modifier. Use of the industrial calciner and a method of calcining particulate material with the industrial calciner are also described.

公开(公告)号：US20240116810A1

公开(公告)日：2024-04-11

申请号：US18263033

申请日：2022-02-22

申请人： Saint-Gobain Placo

发明人： Olivier Francy ,  Lionel Magaud ,  Jöel Colombo ,  Binh Tran

IPC分类号： C04B11/06 ,  C04B11/00

CPC分类号： C04B11/06 ,  C04B11/002

摘要： 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.

公开(公告)号：US20240077254A1

公开(公告)日：2024-03-07

申请号：US18262244

申请日：2022-01-13

申请人： Saint-Gobain Placo

发明人： Peter Sutton ,  Binh Tran ,  Sam McGaffin ,  Siva Kancharlapalli ,  Manish Patel ,  Amelie Tissot

IPC分类号： F26B23/04 ,  F26B3/06 ,  F26B3/28 ,  F26B21/08 ,  F26B21/10

CPC分类号： F26B23/04 ,  F26B3/06 ,  F26B3/28 ,  F26B21/08 ,  F26B21/10

摘要： The present application describes an industrial drying apparatus for drying board precursor to form gypsum board, wherein the industrial drying apparatus comprises at least one electric heater. Use of the industrial drying apparatus and a method of drying a precursor board to form a gypsum board using the industrial drying apparatus are also described.