Method for producing foam glass from silver tailings

• Main Author: CUI YAOPENG
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2017
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

The invention provides a method for producing foam glass from silver tailings. The method includes proportioning the silver tailings to obtain frit with certain composition; melting the frit and carrying out water quenching on the frit to obtain foam glass raw materials; mixing glass clinker and foaming agents with one another to obtain mixtures and sintering and annealing the mixtures to obtain the foam glass. The method has the advantages that the foam glass prepared by the aid of the method is high in breaking strength and excellent in performance and has a low heat conductivity coefficient; as shown by test results, the density of the foam glass prepared by the aid of the method is 98-140 kg/m , the normal-temperature heat conductivity coefficient of the foam glass is 0.036-0.045 w/(K.m), the breaking strength of the foam glass is 0.5-3 MPa, and the pore diameters of the foam glass are 0.1-4 mm; the foam glass prepared by the aid of the method is good in compressive strength, has the low heat conductivity