Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB26081/31A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Manufactures des Glaces et Produits Chimiques de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie de Saint Gobain SA, Manufactures des Glaces et Produits Chimiques de Saint Gobain SAfiledCriticalCompagnie de Saint Gobain SA
Publication of GB371272ApublicationCriticalpatent/GB371272A/en
Refractory blocks, particularly for use in glass furnaces, are made by fusing in an electric furnace, quicklime (free from magnesia) with silica in such proportions that the resultant compounds approximates to CaO.SiO2 (Wollastonite). The fixed material is poured into a mould, and when a crust has formed, annealed in a bed of material such as kieselguhr. An admixture of up to 5 per cent of fluorspar may be made to the mix to assist crystallization.
GB26081/31A1930-10-171931-09-17Improvements relating to the manufacture of refractory blocks
ExpiredGB371272A
(en)