Hubei Sanli Fengxiang Technology Blog

As an   Ethyl Acetate Plant , share with you. 1. The esterification reaction is a reversible reaction. In order to increase the yield of esters, the reaction must be made as far as possible to facilitate the formation of esters. Generally, one of the reactants acid and alcohol is made in excess. In industrial production, which excess is better depends on the availability of raw materials, whether they are cheap, and whether they are easy to recycle. In the laboratory, an excess of ethanol is generally used. The mass fraction of ethanol should be high. It would be better if the ethanol with a mass fraction of 95% could be replaced by absolute ethanol. The amount of concentrated sulfuric acid used in the catalysis is very small. Generally, the catalysis can be completed as long as the mass of sulfuric acid reaches 3% of the mass of ethanol. However, in order to remove the water generated in the reaction, the amount of concentrated sulfuric acid should be slightly larger. 2. When prep...

As a   Hydrogen Peroxide Manufacturing Plant , share with you. Steam running at the bottom of the distillation tower (that is, heating steam fleeing into the residual liquid and overflowing) is generally caused by the large amount and pressure of heating steam. At this time, the amount and pressure of steam can be reduced appropriately. If the liquid level of the residual liquid in the heating kettle at the bottom of the tower is too low (less than 1/2 of the total height of the tower kettle section), the phenomenon of less liquid and more vapor will also occur when the spent grains are discharged. Distillation Technology The solution is to temporarily close down or close the outlet valve to increase the liquid level and maintain the residual liquid height in the tower kettle section. When using a buoy-type drainer, if the buoy is stuck and cannot fall, it will also cause excessive discharge of the waste liquid. Therefore, we must pay attention to the mechanical failure of the drai...

As a   Formaldehyde Production Plant , let me share with you. Formaldehyde production technology is well-known for the wide range of uses of methylal, and its application is bound to involve all aspects of storage and transportation. When raw materials leave the factory, it is important to arrive safely. What are the precautions during transportation and storage and transportation? Formaldehyde Production Silver Process Long-term storage tanks should be equipped with breathing valves, the tanks should be sprayed with cold water in summer, and the tanks should be shaded and insulated if necessary. Give full play to the maximum use of raw materials, achieve the best product application, and complete safe production from the source to the end. The safety of the methylal transport fleet is more important than Mount Tai. Methylal is a first-class flammable liquid and is non-corrosive to metals. It can be stored in iron, mild steel, copper or aluminum containers. At the same time, due to...