METHOD OF PREPARATION OF THE PLATINUM HYDROPHOBIC CATALYST OF THE ISOTOPIC EXCHANGE OF HYDROGEN WITH WATER Russian patent published in 2007 - IPC B01J23/42 B01J31/06 B01J37/02 B01D59/02 

FIELD: chemical industry; methods of preparation of the platinum hydrophobic catalyst used for separation of the isotopes of hydrogen and water.

SUBSTANCE: the invention is pertaining to the methods of preparation of the platinum hydrophobic catalyst used for separation of the isotopes of hydrogen in the columns of the isotope exchange of hydrogen with water. According to the offered method platinum is deposited at the room temperature from the solution of hexachloroplatinum acid H₂PtCl₆·6H₂O in the mixed solvent (the mixture of acetone and mesityl oxide containing 10÷90 vol. of % of mesityl) on the hydrophobic spherical granules of the copolymer of styrene with divinylbenzene (DVB), in which the contents of paradivinylbenzene is no more than 15 mass %, the total contents of the all forms of DVB makes 10-70 mass %, and the mean size of the pores in the granules of the carrier is no less than 300 Å. After ageingin the impregnating solution the carrier is dried and restored with the help of hydrogen. The prepared catalyst possesses the high catalytic activity (the exchange constant к_e ˜ 10÷20 s^-1), stability (no less than three years), radiation resistance (up to the dose of the irradiation - 100 Mrad). At that the quantity of platinum makes 0.4-1.0 mass %, and the size of the spherical granules lays in the interval of 0.5÷1.0 mm.

EFFECT: the invention ensures, that the prepared catalyst possesses the high catalytic activity (the exchange constant к_e ˜ 10÷20 s^-1), stability (no less than three years), radiation resistance (up to the dose of the irradiation - 100 Mrad).

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