Introduction

AWS chemical formula is mSiO₂·nAl₂O₃·xH₂O with stable chemical properties, no combustion, insoluble in any solvent except strong alkali and hydrofluoric acid, and better than ordinary Si-Al silica in adsorption and separation performance. The water resistance of particles is significantly improved and also improved the durability of humidity changes, pressure changes.

Application

It is a kind of new multifunctional product based on Si-Al silica. It is widely used in petrochemical industry and other treatment of gaseous materials.On the basis of maintaining a series of properties of the original common type of Si-Al silica, it can be better applied to desiccant, adsorbent, various catalyst carriers and widely used in industrial oxygen production, hydrogen production, carbon dioxide purification, natural gas purification,refrigerant drying, hollow glass, gas separation and purification, nuclear wastewater treatment, oxygen rich combustion, steel and non-ferrous metal smelting,pneumatic braking, petrochemical,coal chemical and other industries and fields.

Technical Specifications

Items			Specifications
Al₂O₃	%		2.5-3.5
Specific surface area	m²/g		650-750
25℃ Adsorption capacity %wt	RH=10%	≥	4.5
	RH=20%	≥	7.0
	RH=40%	≥	15.0
	RH=60%	≥	25.0
	RH=80%	≥	34.0
Bulk density	g/L≥		680-750
Crushing strength N	≥		80
Pore volume	mL/g		0.4-0.6
Moisture	%≤ %≤		3.0