Porous waste glass membrane

摘要

The present invention disclosed in this application relates to a method for producing glass membranes for filtration purposes. The disclosed method for producing cost effective glass membranes utilizes recycled waste glass, has shorter sintering periods and has lower sintering temperatures.

主权项

1. A method for forming a highly porous glass membrane comprising the steps of:
combining glass particles with a foaming agent to form a combination; fragmentizing said combination to produce a homogeneous mixture; combining said homogeneous mixture with a binder and water to produce a slurry; forming said slurry into a glass membrane; curing said glass membrane at an ambient room temperature; heating said glass membrane from said ambient room temperature to a first elevated temperature over a first specified period of time sintering said glass membrane from said first elevated temperature to a second elevated temperature over a second specified period of time wherein said step of sintering said glass membrane comprises: incrementing said sintering heat applied to said glass membrane at a rate substantially between 0.1° C. per minute and 15° C. per minute to form pores of a predetermined size in said glass membrane; and cooling said glass membrane.