Patent ID: 8652572

Claim:
A method for producing a particulate filter that passes through select permeate particles in a fluid medium from inflow to outflow regions while restraining reticulate particles, said method comprising: providing an aluminum oxide substrate: disposing a sol-gel membrane onto said substrate to form a filtration unit that includes producing a solution by: providing a surfactant of a cationic surfactant by one of cetyltrimethylammonium bromide (CTAB) and cetyltrimethylammonium hydrogen sulfate (CTAHS), incorporating into said surfactant a silica from one of tetraethoxysilane TEOS and tetramethoxysilane (TMOS) to produce said solution, refluxing said solution, ethanol (C 2 H 5 OH), water and hydrochloric acid (HCl) at 60° C., adding water and increasing hydrochloric acid to 0.01M into said solution, stirring said solution for 15 minutes at 25° C., conditioning said solution at 50° C., diluting said solution with ethanol, and adding CTAB to concentration between 0.03M and 0.11M; drying said filtration unit; disposing said filtration unit into phosphoric acid and removing to dry; and calcinating said filtration unit.