Abstract
Resin–asphaltene concentrates were obtained by the redox reaction of acid tar and naphtha deasphalting residue and used for fabrication of sulfo–cation exchangers. The strongly acid powdered sulfo cation exchanger with a static exchange capacity of 3.8 meq/g and mechanical strength of 92% is characterized by elevated thermohydrolytic stability and radiation stability. Based on its properties, it can be used in metal–gauze–asbestos gravity filters at atomic power plants for preliminary treatment of water.
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