Filtration apparatus containing graphene oxide membrane

US11123694B2 · kind B2 · utility

Assignee

• Via Separations, Inc. · US

Inventors

• Michelle MacLeod · Boston, US
• Stephen Frayne · Watertown, US
• Brandon MacDonald · Melrose, US
• Lymaris ORTIZ RIVERA · Cambridge, US
• Brent Keller · Somerville, US

Key dates

• Filing date: May 28, 2020
• Grant date: Sep 21, 2021
• Expiry date: May 28, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2325/20
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Embodiments described herein relate generally to graphene oxide membranes for fluid filtration and more specifically to graphene oxide membranes having tunable permeability, rejection rate, and flux. Some embodiments of the graphene oxide membranes disclosed herein are characterized as having a flux of at least about 2.5×10−4 gallons per square foot per day per psi with a 1 wt % lactose solution at room temperature, and a lactose rejection rate of at least 50% with a 1 wt % lactose solution.