Mullite Module for Liquid Filtration

Abstract

The disclosure relates to a material suitable for forming a honeycomb monolith for liquid filtration and, more particularly, to a mullite material for forming a cross-flow filtration device for separating a feed stock into filtrate and retentate, methods for forming the filtration device, and filtration devices formed from the material.

1 . A composition for forming a filtration device for receiving a process stream and separating the process stream into a filtrate and a retentate, the composition comprising:
 greater than 30% wt. mullite powder;   10-15% wt. bentonite; and   a super addition of 10-30% wt. pore former, wherein the pore former is a combination of graphite and potato starch   
     
     
         2 . The composition of  claim 1  wherein the pore former comprises 10-15% wt. graphite and 5-15% wt. potato starch. 
     
     
         3 . The composition of  claim 1  comprising approximately 86% mullite powder and approximately 14% bentonite. 
     
     
         4 . The composition of  claim 1  comprising approximately 86% mullite powder, approximately 14% wt. bentonite, and wherein the pore former comprises 10-15% wt. graphite and 5-15% wt. potato starch. 
     
     
         5 . The composition of  claim 1  wherein the pore former comprises 5-10% wt. graphite. 
     
     
         6 . The composition of  claim 1  wherein the pore former comprises 5-15% wt. potato starch.