glass reactor,jacketed glass reactor,glass reactor vessel 1. Choose the right reactor:Make sure that the glass reactor used is labeled with the maximum temperature it can withstand and whether it is suitable for high-temperature experiments. Borosilicate glass reactors can often withstand higher temperatures.
2. Preheating:Preheat the reactor to a certain temperature before adding the reactants. This helps to minimize the impact of sudden temperature changes on the glass and avoid rupture caused by thermal stress.
3. Temperature control:Use a precise temperature control system, such as a hot plate or oil bath, to control the temperature of the reactor. Ensure that the set temperature of the temperature control equipment does not exceed the thermal limit of the glass reactor.
4. Temperature gradient:During the heating process, the temperature should be increased gradually to avoid rapid warming to minimize thermal stress.
5. Use thermal barrier materials:thermal barrier materials, such as asbestos mesh, can be placed between the reaction kettle and the heating source to disperse the heat evenly and avoid localized overheating.
6. Avoid thermal shock:Don't expose the high-temperature kettle directly to the low-temperature environment, or cool it down suddenly in the high-temperature state, to avoid glass rupture.
7. Safety measures:When conducting high-temperature experiments, wear appropriate personal protective equipment, such as heat-resistant gloves and protective glasses. At the same time, ensure that the laboratory has good ventilation.
8. Monitor the reaction:During the high temperature reaction, the reaction process should be closely monitored, as well as the temperature, pressure, and other key parameters to ensure that everything is under control.
9. Emergency Preparation:Before the experiment starts, emergency measures such as fire extinguishers, asbestos blankets, etc. Should be prepared to deal with possible emergencies such as fire or glass breakage.
10. Post-experiment treatment:After the experiment is completed, the temperature should be gradually lowered to avoid glass rupture caused by rapid cooling.
What are the concerns of high temperature test of glass reactor?
The glass reactor is a double-layer glass design, the inner layer is put into the reaction solvent, which can be used for stirring the reaction. The interlayer can be connected with different cold and hot sources (frozen liquid, hot water or hot oil)to do circulating heating or cooling reaction. Under the condition of setting constant temperature, the sealed glass reactor can be used according to the requirements of stirring reaction under atmospheric pressure or negative pressure. It can carry out the reflux and distillation of the reaction solution, which is the ideal pilot and production equipment for modern fine chemical industry, biopharmaceuticals, and the synthesis of new materials.
Glass reactor is commonly used. In general, a glass reactor stirs the reaction at a certain temperature. The inner layer of glass reaction kettle is placed with reaction solvent, which can be used for stirring reaction, and the mezzanine is circulated through cold and hot sources (freezing liquid, water, heat-conducting oil), so that the inner layer can realize constant temperature heating or cooling reaction and control the distillation reflux of the reaction solvent, and it is the ideal test and production equipment for the synthesis of modern synthetic chemical industry, biopharmaceuticals, and the preparation of new materials. Glass reactor for high temperature test two points of attention are as follows.
1.special stirring seal
The glass reactor adopts special long-lasting stirring seal, which can realize the simultaneous distillation and reflux of the glass reactor. It adopts imported frequency converter or electronic stepless speed regulation, and is driven by AC geared motor for stirring, with strong stirring force, no brush, no spark. No cross contamination. Digital display speed high, low temperature display, easy to operate.
2. Heating temperature
It is very important for glass reactor to be heated at high temperature, in order to complete the high temperature experiment, it needs to be heated with glass reactor. The temperature requirement of glass reactor in the production process is different. When the glass reactor in the production process of the temperature requirements are not strict enough, you can use the water temperature method to obtain its high temperature;when the temperature has a fixed value, you can use the steam heating method of heating;when the temperature has a certain range, the use of saturated steam method.
Daily use for the use of atmospheric pressure or negative pressure glass reactor to complete the experiment is also more common, therefore, master the corresponding heating method, can greatly improve the efficiency of the glass reactor.
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