Method for continuously producing hydrated calcium silicates

• Main Authors: TAKEUCHI; HIDESATO, OIKAWA; SHIGEKI, SATOH; HIROKAZU
• Format: Patent
• Language: English
• Published: 23.12.1975
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS THEREOF; CONCRETE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; LIME, MAGNESIA; METALLURGY; NON-METALLIC ELEMENTS; REFRACTORIES; SLAG; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT OF NATURAL STONE

A method for producing hydrous calcium silicates such as xonotlite, tobermorite and the like, which comprises interacting a siliceous material and a calcareous material or a siliceous material, a calcareous material and a small amount of a magnesia material in aqueous slurry to make above 50% by weight of gelation materials at 50 DEG -100 DEG C, rapidly raising the temperature of the gelation slurry to above 160 DEG C continuously with pressurized water of high temperature allowing to stand the slurry at the temperature for a definite time and then continuously discharging the reaction product.