Purification process for polyether-carbonate polyols

A process for removing an alkylene carbonate from a polyether-carbonate, comprising contacting a starting polyether-carbonate that contains at least 0.25 weight-%, based on the weight of the starting polyether carbonate, of one or more alkylene carbonates, with a solid absorbent that contains pores having an average pore size of at least 1 nm up to 100 nm at a temperature of 30 to 150° C. and at which temperature the starting polyether-carbonate is a liquid, wherein the solid absorbent has a pore volume of 0.25 to 2 mL/g and is selected from the group consisting of an unfunctionalized, crosslinked porous polymer that lacks ion exchange capacity in the form of a particulate solid and a crosslinked porous polymer which which crosslinking porous polymer is is a crosslinked porous anion exchange resin in the form of a particulate solid.