The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 1980
Filed:
Dec. 29, 1978
Tokuyama Soda Kabushiki Kaisha, Yamaguchi, JP;
Abstract
A process for producing calcium silicate of the rational formula 2CaO.3SiO.sub.2.nSiO.sub.2.mH.sub.2 O wherein m is a number of more than 0, and n is a number of 0.1 to 10 from a silicate compound and a calcium compound, which comprises contacting a water-soluble silicate compound with a calcium compound in an aqueous medium, and heating them to a temperature of 150.degree. to 250.degree. C., the amount of the aqueous medium being 5 to 100 times the weight of the calcium silicate obtained, and a process for producing calcium silicate or a calcium silicate-gypsum composite, which comprises adding a water-soluble silicate or its aqueous solution gradually to an aqueous suspension of gypsum, and heating the mixture to a temperature of 150.degree. to 250.degree. C. The calcium silicate and the calcium silicate-gypsum composite, which have a structure composed of an assembly of petal-like flakes, are useful as an adsorbent carrier, a delusterant or a filtration aid.