MICROWAVE CHEMICAL SYNTHESIS APPARATUS

FIELD: chemistry.SUBSTANCE: invention is intended for chemical synthesis of nanomaterials for industry and science and enables to study chemical synthesis kinetics while providing monitored and controlled effect of microwave radiation on a reaction medium. The microwave chemical synthesis apparatus includes a computer, a magnetron, a gradually variable supply voltage unit, a reactor chamber housing a reactor vessel on which an optical heat sensor is directed through an opening in the wall of the reactor chamber, said sensor being electrically connected to an analogue-to-digital converter, the output of which is connected to the first input of the computer, and a rectangular waveguide connected by one end to the magnetron and by the other end to the reactor chamber, and the output of the gradually variable supply voltage unit is connected to the magnetron. The apparatus further includes a reflection coefficient measuring unit, having four probes and a four-channel converter for converting analogue microwave signals to a digital signal, each channel of which is electrically connected to one of the probes of the reflection coefficient measuring unit, and the output of said four-channel converter is connected to the second input of the computer, a dynamic matching unit, having a probe and a step linear drive, electrically connected to the first output of the computer and mechanically connected to the probe of the dynamic matching unit, wherein the input of the gradually variable supply voltage unit is electrically connected to the second output of the computer.EFFECT: high stability of conducting chemical synthesis, safer operation of the device and longevity of the magnetron.1 dwg Изобретение относится к области технических устройств, обеспечивающих нагрев электромагнитным полем СВЧ реакционной среды при проведении химического синтеза. Изобретение предназначено для химического синтеза наноматериалов для промышленности и науки и позволяет проводить исследования кинетики химического синтеза с обеспечением контролируемого и управляемого воздействия микроволнового излучения на реакционную среду. Устройство микроволнового химического синтеза содержит компьютер, магнетрон, блок плавно изменяемого напряжения питания, реакторную камеру с размещенным в ней реакторным сосудом, на который через отверстие в стенке реакторной камеры направлен оптический термодатчик, электрически соединенный с аналогово-цифровым преобразователем термодатчика, выход которого соединен с перв