METHOD OF PRODUCING TUNGSTATES OF DIVALENT METALS Russian patent published in 2024 - IPC C01G41/00 C01G9/00 C01F5/00 C01F11/00 B82B1/00 

Abstract RU 2827938 C1

FIELD: inorganic chemistry.

SUBSTANCE: invention can be used for making scintillators for detecting ionizing radiation in nuclear physics, elementary particle physics, nuclear medicine, in particular, in positron emission tomography, as well as for production of X-ray security systems and custom inspection for clearance of large-sized cargoes. Initial components: tungsten nanopowder with average surface particle diameter of 74 nm and Me (II) oxide powder, where Me is selected from Zn, Mg, Sr, are mixed during 10 minutes in stoichiometric ratio. Obtained mixture is placed in a ceramic crucible, covered with a ceramic cover and stirred in a high-temperature furnace heated to 1,000-1,100 °C, in which the mixture is heated and held for 60-70 minutes. Then the crucible is cooled in air, cake is extracted from it, which is ground to powder.

EFFECT: method of producing tungstates of divalent metals is simple and provides for reduced duration of the process.

1 cl, 4 dwg, 1 tbl

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RU 2 827 938 C1

Authors

Mostovshchikov Andrei Vladimirovich

Tokarev Denis Sergeevich

Tikhonov Dmitrii Vladimirovich

Dates

2024-10-04Published

2024-04-09Filed