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Dry form, crosslinked gel type cation, H+

Seplite® BD130 is specially developed dry cation for Purification and impurity removal of Biodiesel It has been developed to purify the raw biodiesel stream after the phase separation step in the manufacturing of biodiesel.
Seplite® BD130 functions as a desiccant, neutralizing agent and an ion exchanger to remove water, leftover reactants and by-products of the transesterification process, including soaps, glycerin, NaOH and organics. It may be used without any special pre-treatment. Seplite® BD130 greatly simplifies biodiesel purification.
This resin was supplied in dry form, and shows very big advantage on high capacity and long service time, the exact service time varied accordingly to the biodiesel quality and impurity a lot.

Since supplied in dry form, during column design and loading resin, pls pay specially attention to its swelling rate.

SEPLITE® BD130 Ion Exchange Resin Physical and Chemical Characteristics:

Matrix StructureCrosslinked gel type cation
Function groupR-(SO3)-M+
Physical Appearancespheres
Shipping formH+
Particle range(mm)0.315-1.25 (98%)
Moisture Content(%)≤5%
Bulk Density(g/l)870-900
Typical Capacity0.05 to 0.1% by weight of biodiesel processed
Neutralization CapacityMinimum 180 grams of NaOH per lb of resin.

SEPLITE® BD130 Ion Exchange Resin Applications:

Seplite® BD130 can be used either before or after the phase separation stage of the processing. It will remove traces of alkaline catalysts, methanol, water and glycerin.
Although Seplite® BD130 can be used in a batch process, it is best to place Seplite® BD130 into an exchange column for ease of use.
As an efficient filter media, it can be used to help remove traces of suspended solids. However, bulk solids removal (if necessary) should be performed before resins.
Seplite® BD130 has a fixed ion exchange capacity and a fixed capacity for moisture. The more impurities before it enters the resin vessel, the less treated amount could be expected.
To achieve highest treating capacity, we should minimize moisture and excess basicity in the raw biodiesel before it contacts the resin bed. Higher concentrations of water, methanol and glycerin will decrease throughput capacity and increase operating costs.
Seplite® BD130 can also be used to remove water and cationic impurities from other organic systems.


Heat is generated when Seplite® BD130 is wetted and when it neutralizes alkalinity left in the biodiesel. In some cases the temperature rise can exceed 30℃ . Equipment should be designed to accommodate this thermal increase.

SEPLITE® BD130 Ion Exchange Resin Precautions: 

When applying water to Seplite® BD130, regardless of its condition (exhausted or unexhausted). Take proper precautions, execute safety measures and allow for rapid expansion. When not fully exhausted the resin is extremely hygroscopic. Rapid expansion, up to a doubling in size, may occur if unexhausted resin is placed in water. This can result in damage to process vessels and may even cause personal injury.

Resins should be stored in sealed containers or bags where temperature was above 0℃ in dry conditions without exposure to direct sunlight.
Do not mix ion exchange resin with strong oxidizing agents; otherwise it will cause violent reactions.
In case of eyes contact with resins, rinse eyes immediately with plenty of water, and consult a specialist. Material and samples must be disposed according to local regulations.
Dry polymers will expand when become wetted and may cause an exothermic reaction. Spilled materials may be slippery.

SEPLITE® and Monojet™ are registered trademarks of Sunresin New Materials Co. Ltd., Xi`an

  • This information is general information and may differ from that based on actual conditions. For more information about SEPLITE® resins, please contact SUNRESIN® directly.

All information set forth herein is for informational purposes only. This information is general descriptive(introductory) information of SUNRESIN and its related products,  technologies and  services. Neither shall constitute the guarantee of SUNRESIN and its affiliates to products, technologies and services in specific fields and specific application conditions results, unless otherwise expressly noted. SUNRESIN and its affiliates assumes no obligation or liability for the information in this document. Customer is responsible for judging whether the information is appropriate for Customer's concrete demand and are obliged to understand whether the use of these products, technologies and services is permitted by the laws and regulations of their countries and relevant regions. Unless expressly stated, no freedom from infringement of use any patent or trademark or intellectual property rights owned by SUNRESIN or its affiliated companies under this document  is to be inferred.

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