Bio-Fuels

As the world looks for alternative energy sources, Dow stands ready with a wide selection of ion exchange resins for your process or purification needs. Our versatile resin media can be applied to a range of application needs in this emerging market.

DOWEX™ ion exchange resins can be used to remove and reduce trace salts and contaminates from fuel ethanol (46KB PDF) using well established demineralization techniques.

Ethanol can be dried with Desiccant Resins. For more information, see our Solvent Drying page.

A pre-dried gel resin, DOWEX DR-G8 can be applied to purify processed biodiesel, removing salts, glycerin, water, soaps and other trace materials to aid the producer in meeting ASTM or EU specifications.

DOWEX ion exchange resins offer solutions for your chemcial processing, catalyst and water use needs.

  
DOWEX Ion Exchange Resins

Product	Description	Type	Matrix	Total Exchange Capacity* eq/l (kgr/ft3)	Available Forms
DOWEX DR-G8	A dried gel resin for biodiesel purification.	Stong Acid Cation	Styrene-DVB, Gel	> 4.5 dried	H+
DOWEX 88	Ion exchange resin for sweetener applications.	Strong Acid Cation	Styrene-DVB, Macroporous	1.8	Na+
DOWEX 66	Ion exchange resin for sweetener applications.	Weak Base Anion	Styrene-DVB, Macroporous	1.6	FB (Free Base)
DOWEX 22	Ion exchange resin for sweetener applications, specifically designed for good kinetics and high performance in critical, mixed bed polishing of sugars.	Type II Strong Base Anion	Styrene-DVB, Macroporous	1.2 (24.0)	Cl-
DOWEX MB	A cost effective, mixed ion exchange resin for making spot-free water.	1 : 1 by equivalent cation : anion	Styrene-DVB, Gel	1.0 (21.9) 1.6 (35.0)	OH- and H+