Treated ion exchange resins, method of making, assemblies...

H - Electricity – 01 – M

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H01M 8/04 (2006.01) B01D 19/00 (2006.01) B01J 47/00 (2006.01) C09K 5/10 (2006.01) C23F 11/08 (2006.01) C23F 11/10 (2006.01) F01P 11/14 (2006.01)

Patent

CA 2577427

Disclosed is a pre-treated ion exchange resin comprising at least 15% by total number of exchangeable groups comprising at least one of an ion, or a Lewis acid, or a Lewis base resulting from a heat transfer fluid component having a pKa or pKb of greater than 5 in an aqueous solution at 25 ~C, based on the total number of exchangeable groups. In one embodiment, the heat transfer fluid component is at least one of a colorant, a corrosion inhibitor, an antifoaming agent, a bitterant, a dispersant, or a combination thereof. In one embodiment, the heat transfer fluid component comprises a heat transfer fluid corrosion inhibitor. Also disclosed are heat transfer systems, assemblies, fuel cell systems and methods of maintaining a conductivity of less than 200 ~S/cm in a heat transfer fluid that employ the disclosed pre-treated ion exchange resins.

L'invention concerne une résine prétraitée échangeuse d'ions, qui comprend au moins 15 % du nombre total de groupes échangeurs contenant au moins un ion, un acide de Lewis ou une base de Lewis résultant d'un élément liquide de transfert de chaleur présentant un pKa ou un pKb supérieur à 5 dans une solution aqueuse à 25 °C, sur la base du nombre total de groupes échangeurs. Dans un mode de réalisation, l'élément liquide de transfert de chaleur est au moins un colorant, un inhibiteur de corrosion, un agent antimousse, un agent d'amertume, un dispersant, ou leur combinaison. Dans un mode de réalisation, l'élément liquide de transfert de chaleur comprend un inhibiteur de corrosion du liquide de transfert de chaleur. On décrit également des systèmes de transfert de chaleur, des ensembles, des systèmes de piles à combustible, et des procédés de maintien d'une conductivité inférieure à 200 ?S/cm dans un liquide de transfert de chaleur, qui mettent en oeuvre les résines prétraitées échangeuses d'ions de l'invention.

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