Recrystallization device for chemical product

Abstract

The invention discloses a recrystallization device for a chemical product. The device comprises a suction flask, a hose, a base and a base plate. A soft wood plug is arranged above the suction flask,a funnel port and a Buchner funnel are arranged at one end of the soft wood plug, a rubber plug is arranged at one end of the hose, the other end of the hose is connected to the suction flask, a glasstube and a safety bottle are arranged at one end of the rubber plug, a bracket and an iron bracket are arranged above the base, an asbestos wire gauze is fixedly mounted at one end of the bracket, and an evaporation hood and an evaporation vessel are arranged above the asbestos wire gauze. The recrystallization device for the chemical product is provided with a rubber anti-skid sleeve, the safetybottle and the evaporation hood, can prevent slip when sweated hands are in contact with an alcohol lamp, also can prevent a suck-back phenomenon caused by operating errors to pollute a sample, can reduce evaporation of the sample, saves resources and suitable for different working conditions, and brings a better application prospect.

Description

technical field [0001] The invention relates to the field of recrystallization devices, in particular to a recrystallization device for chemical products. Background technique [0002] Recrystallization is the process of crystallization from the solution or melt after the crystal is dissolved in a solvent or melted. Recrystallization can purify impure substances or separate mixed salts from each other. Among them it is the result of physicochemical action. The solid crude product separated from the organic synthesis reaction often contains unreacted raw materials, by-products and impurities, which must be separated and purified. Recrystallization is an important and commonly used separation method for the separation and purification of pure solid compounds. The solubility of solid organic matter in solvents is easy to change with the change of temperature. Usually, the temperature increases and the solubility increases; otherwise, the solubility decreases. For the former ...

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Problems solved by technology

[0003] The existing recrystallization equipment has certain disadvantages in use. First, the traditional recrystallization equipment does not use good protection equipment during solvent evaporation, which leads to the loss of products during the evaporation process, which not only wastes resources, but also leads to a decrease in yield. , it is also possible that the product is lost in the air and pollutes the atmosphere, and there is no safety device during the suction filtration of the equipment, which may easily lead to the phenomenon of sucking back during the operation and pollute the product, and when the user's hands are sweating, it is easy to slip when touching the alcohol lamp , may cause damage to the device, for this reason, we propose a recrystallization device for chemical products

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