The photochemical reactors are divided into the following categories: 1. Small-volume reactors: High-efficiency UV mercury lamps are used as the light source. Among all the radiant energy, ultraviolet energy: 40-48%, visible light: 40-43%, and the rest Balanced by infrared light, from 250ml to 5000ml, various volume types are available, there are many types of filters, optional power supply, models with adjustable output power, observation window on the protection cabinet, and protection filters, various types The volume of the reaction vessel and light source: 250mL, 500mL, 1000mL kettle body has single-walled, jacketed, jacketed container with bottom discharge valve. The optional protection box is controlled to open the outer wall of the box, the operator can Operate the reaction process in the smallest case to achieve the purpose of protecting the operator. 2. Micro-reactor: It can minimize the harm of the experiment to the experimenter. The reaction volume is 5 ~ 15ml. The cold trap, reactor, and lamp source are 5.5W low pressure, cold light source mercury lamp, 220V model. 3. Parallel reactor: The small parallel reactor can perform 8-bit parallel reaction at the same time, the transillumination table cannot rotate, and the bottom has a fan to blow up the heat to dissipate. The large parallel reactor can conduct 51 parallel patterns at the same time, divided into inner and outer circles, inner circle It can hold 18 borosilicate filter tubes and 33 outer rings. The potassium chromate and sodium cyanide content of all filter tubes is less than 3%, which can effectively improve the efficiency of parallel reactions. The transillumination table can be rotated so that each sample receives the same energy at the same time, so that the reaction conditions of each sample can be unified (such as temperature, light energy, etc.), and the reproducibility of the test conditions can be achieved. 4. Photocatalytic oxidizer (Ultraviolet light) Used to determine the inorganic content in nitrogen oxides, carbon oxides, and phosphorus compounds. Pass excess oxygen to the slag dissolved in water, and simultaneously irradiate, which can convert phosphorus trichloride within one hour Into cations and oxides into CO2. Other applications include metal-containing organic matter, determining the TNT content in water, and providing organic-free samples for agriculture and fertilizer analysis. The main components include: a sample rack that can hold 12 sample tubes, or a coil wound on the lamp jacket, the material passes through the coil to achieve the purpose of irradiating the material. 1200W medium-pressure mercury lamp, the power supply can set the time and irradiation power. 5. The thin-film photochemical reactor (falling film) special glass reactor can be used for falling film photochemical reaction. The specific principle is to pump the reacted materials to a high place through the pump and enter the upper edge of the reaction channel when the high place After the flange, the material is illuminated by the light source as it flows down the wall of the tube. It can be taken from the bottom while reacting. The flow rate can be controlled between 35cc / min ~ 300cc / min, the minimum volume of the reactor is 100ml, the maximum volume is 2L, and the reactor can withstand the pressure of 0.7Kg / cm2.
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