Asahi Glass Company, Limited

Masamichi Yokotani

Daisuke Hasegawa

Atsushi Tanigaki

Shuji Kabashima

Kouzou Sakai

Yutaka Ishikawa

Shinji Morohashi

A process for producing a float bath bottom refractory brick which can suppress a reaction with NaO from glass at the surface of the refractory brick and thereby prevent flaking phenomena, which process comprises adding a potassium compound to a clayey material comprising from 30 to 45 mass % of AlOand from 50 to 65 mass % of SiOand having a NaO content of at most 1 mass %, so that the KO content in the float bath bottom refractory brick to be produced would be from 2 to 4 mass %; and a refractory brick useful for a float bath bottom for production of plate glass by a float process.

Float bath bottom refractory brick and process for its production

A method for reducing NO, in a combustion gas which is discharged from a combustion furnace for burning a fuel by means of a gas containing oxygen in an amount of at least 80 vol % and which contains oxygen, which method comprises adding a combustible material to the combustion gas at a temperature of from 1,000 to 1,500&#xb0; C., wherein the combustible material contains a compound comprising C and H.

Method for reducing nitrogen oxides in combustion gas from combustion furnace

Growing community of inventors

Yokohama, Japan

Masamichi Yokotani