Photochemical reactors are divided into the following categories: 1. Micro-reactor: It can minimize the harm of the experiment to the experimenters. The reaction volume is 5-15ml. It consists of cold trap, reactor, low-pressure lamp source of 5.5W, cold light source mercury lamp, 220V model. . 2. Small-volume reactor: A high-efficiency UV mercury lamp is used as the lamp source. Among all the radiation energy, the ultraviolet energy: 40-48%, visible light: 40-43%, and the rest is balanced by infrared light from 250ml to 5000ml. Types can be selected. There are many types of filters. The power supply is available. The output power can be adjusted. The protection cabinet has an observation window, and there are various types of reaction vessels and light sources to protect the filters: 250mL, 500mL, 1000mL. There are single-walled, jacketed, jacketed containers with bottom discharge valve. The protection of the protective box is optional. The opening of the protection box is on the outer wall of the box. The operator can operate the reaction process with the minimum amount of radiation to protect the operator 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 filters and 33 in the outer ring. The potassium chromate and sodium cyanide content of all filters 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, and the reaction conditions of each sample can be unified (such as temperature, light energy, etc.) to achieve the reproducibility of the test conditions 4. Thin-film photochemical reactor (falling film type) A 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. 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. 5. Photocatalytic oxidizer (ultraviolet light) Used to determine the content of inorganic substances in nitrogen oxides, carbon oxides, and phosphorus compounds, and to pass excess oxygen into the slag dissolved in water, while irradiating at the same time, within one hour Convert phosphorus trichloride 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. Night Cream Night Cream Night Face Cream,Night Moisturizer,Anti Aging Night Cream,Whitening Night Cream Shenzhen Sipimo Technology Co., Ltd , https://www.sipimotech.com
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Introduction to classification and configuration of multifunctional photochemical reactor
Shanghai Haozhuang Instrument Co., Ltd. Haozhuang (LNB) brand LNB-GHX series photochemical reactor was successfully developed under the technical support of several professors from Shanghai Jiaotong University and East China University of Technology. It is mainly used to study gas or liquid media, fixed or The photochemical reaction under the conditions of flow system, ultraviolet light or simulated visible light, and whether the reaction vessel is loaded with TiO2 photocatalyst. It has the functions of providing samples for analyzing reaction products and free radicals, measuring reaction kinetic constants, measuring quantum yield, etc. It is widely used in research fields such as chemical synthesis, environmental protection and life science.