Procedures for the preparation and granulation of sorbents based on TiO(HPO 4 ) . nH 2 O from the products of processing of sphene concentrate were developed. The sorption and hydrodynamic characteristics of the sorbents were determined. Titanium(IV) phosphates are of a great interest as sorption materials. Depending on synthesis conditions they can have the composition TiO(OH) 2x (HPO 4 ) 1 !x . nH 2 O, TiO(HPO 4 ) . nH 2 O, or Ti(HPO 4 ) 2 . nH 2 O, with TiO(HPO 4 ) . nH 2 O being prepared more easily. Hydrated oxotitanium hydrophosphate can be produced both as a fine amorphous powder and as a granulated product. It was shown in numerous studies that this sorbent efficiently absorbs cations of radionuclides [138] and also of nonferrous metals and iron [9314] from very dilute aqueous solutions. This sorbent can be used for efficient decontamination of liquid radioactive wastes, which are aqueous solutions with a high content (the studies covered concentrations of up to 32 g l !1 ) of salts present in seawater [15317]. Known procedures for preparing granulated sorbents are complicated and expensive [7, 18]. The developed technology of processing sphene concentrate for the synthesis of titanium phosphate sorbent (see scheme) can use titanium sulfate process solutions containing, g l !1 : TiO 2 160 3340, H 2 SO 4 280 3570, CaO 1.6 35.6, F 4.4 37.7, Fe 2 O 3 1.737.4, SiO 2 <0.05, and TR 2 O 3 <0.20 (solution after sulfatization in the scheme); titanium3silica product (TSP) containing, wt %: TiO 2 48, SiO 2 37, CaO 0.56 33.00, Ln 2 O 3 <0.018, Fe 2 O 3 <0.64, Al 2 O 3 <0.25, F <2.2, and NO 3 ! 3.60; and hydrolytic sulfuric acid containing, g l !1 : TiO 2 12313.5, Fe 2 O 3 up to 7.4, and F 4.4 37.7.In this work we studied the conditions of the synthesis of powdery titanium-phosphate sorbents based on TiO(HPO 4 ) . nH 2 O from titanium-containing products obtained in processing of sphene concentrate using simple granulation procedures, and also the sorption and hydrodynamic characteristics of these sorbents.EXPERIMENTAL Titanium(IV) was precipitated from titanium sulfate process solutions by a stoichiometric amount of orthophosphoric acid according to the reaction TiOSO 4 + H 3 PO 4 + nH 2 O = TiO(H 2 PO 4 )(HSO 4 ) . nH 2 O.(1)The further washing with water yields the desired product:TiO(H 2 PO 4 )(HSO 4 ) . nH 2 O = TiO(HPO 4 ) . nH 2 O + H 2 SO 4 .(2)The product (sorbent 1) contains 453 46.7 wt % water, which corresponds to n = 6.60 + 0.25. A comparison with sorbents synthesized from Ti(IV) sulfate solutions in the absence of fluoride ions shows that their presence in the titanium sulfate solution had no effect on the composition and properties of the product, because fluoride ions remained in the highly acidic mother liquor.