A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Métodos para fabricar un yeso calcinado y una placa de yeso
Un método para fabricar un yeso calcinado para una placa de yeso, que comprende: mezclar un yeso en bruto solo con un material de tipo ácido carboxílico; y calcinar una mezcla solamente del yeso en bruto y el material de tipo ácido carboxílico usando una caldera o un horno rotatorio; en el que el material de tipo ácido carboxílico que se va a mezclar con un yeso en bruto es al menos un tipo de ácido succínico y sus sales, ácido málico y sus sales, ácido cítrico y sus sales, ácido tartárico y sus sales, ácido maleico y sus sales, y ácido glucónico y sus sales.
The present invention provides a method for manufacturing a calcined gypsum wherein the mixing water amount is reduced and the setting time does not increase. As a raw gypsum is compounded with a carboxylic acid-type material and calcined, a calcined gypsum can be manufactured wherein the mixing water amount is small and the setting time does not increase. Furthermore, a regular gypsum board can be manufactured without reducing the productivity of the gypsum board even if a large quantity of recycled gypsum causing increase of the mixing water amount is used as a raw gypsum, because the mixing water amount is small and the setting time does not increase for the calcined gypsum manufactured as described above.
Métodos para fabricar un yeso calcinado y una placa de yeso
Un método para fabricar un yeso calcinado para una placa de yeso, que comprende: mezclar un yeso en bruto solo con un material de tipo ácido carboxílico; y calcinar una mezcla solamente del yeso en bruto y el material de tipo ácido carboxílico usando una caldera o un horno rotatorio; en el que el material de tipo ácido carboxílico que se va a mezclar con un yeso en bruto es al menos un tipo de ácido succínico y sus sales, ácido málico y sus sales, ácido cítrico y sus sales, ácido tartárico y sus sales, ácido maleico y sus sales, y ácido glucónico y sus sales.
The present invention provides a method for manufacturing a calcined gypsum wherein the mixing water amount is reduced and the setting time does not increase. As a raw gypsum is compounded with a carboxylic acid-type material and calcined, a calcined gypsum can be manufactured wherein the mixing water amount is small and the setting time does not increase. Furthermore, a regular gypsum board can be manufactured without reducing the productivity of the gypsum board even if a large quantity of recycled gypsum causing increase of the mixing water amount is used as a raw gypsum, because the mixing water amount is small and the setting time does not increase for the calcined gypsum manufactured as described above.
Métodos para fabricar un yeso calcinado y una placa de yeso
TAIRA SHIZUO (author)
2021-11-03
Patent
Electronic Resource
Spanish
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2017