High-modulus water glass obtained by utilizing gasified coarse slag as well as preparation method and application of high-modulus water glass

• Main Authors: ZHANG JIANBO, LI SHAOPENG, LI HUIQUAN, SHI DA, QU JIANGSHAN, CHANG RUIQI
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention provides high-modulus water glass obtained from gasified coarse slag and a preparation method and application thereof.The method comprises the steps that 1, the gasified coarse slag is subjected to mechanochemical synergistic activation impurity removal treatment, and after solid-liquid separation, activated liquid and activated slag are obtained; (2) carrying out carbon-silicon separation treatment on the activated slag to obtain carbon-rich slag and silicon-rich slag; (3) carrying out dilute alkali regulation treatment on the silicon-rich slag, namely gradually adding dilute alkali and carrying out temperature gradient control, and then carrying out solid-liquid separation to obtain high-modulus water glass and desiliconized slag; according to the method, the high-modulus water glass is prepared by adopting a mild all-wet process technology, a new way for preparing the high-modulus water glass is opened up, the energy consumption and material consumption are low, the carbon emission is low, th