Chlorinated recovered methanol extraction and impurity removal device and impurity removal method in maltol production
A technology for recovering methanol and maltol, which is applied in the direction of chemical instruments and methods, separation methods, solvent extraction, etc., can solve the problem that there is no good method for methanol recovery, improve the quality of recovered methanol, facilitate operation, and improve the chlorination reaction Yield effect
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Embodiment 1
[0035] see figure 1 , Chlorination recovery methanol extraction impurity removal device in the production of maltol, including recovery methanol tank 1, extractant tank 2, extraction circulation pump 3, extraction mixer 4, layered tank 5, methanol tank after extraction 7, impurity tank 6, The discharge pipeline of recovery methanol tank 1 and the discharge pipeline of extractant tank 2 merge first, and during the confluence process of the discharge pipeline of methanol tank and the discharge pipeline of extractant tank, the material in the methanol tank is mixed with the extractant, In this process, methanol and extractant are miscible, and methanol is extracted from organic impurities. Then, the extraction circulation pump 3 is connected to the lower feed end of the extraction mixer 4, and a power is given to the mixed material from the extraction circulation pump, so that the mixed material enters the extraction mixer from the lower feed end of the extraction mixer. Since t...
Embodiment 2
[0037] The impurity removal method of chlorination recovery methanol extraction impurity removal device in maltol production comprises the following steps:
[0038] (1) By controlling the valve opening of the outlet pipeline of the recovery methanol tank and the outlet pipeline of the extractant tank, the feed flow rate of the recovery methanol is controlled to 1m 3 / h, the feed rate of the extractant is 200L / h, and the circulating pump is opened so that the mixed solution enters the extraction mixer, and the extractant is desalinated water;
[0039] (2) After the extraction mixer is full, the mixed solution overflows from the upper discharge end of the extraction mixer and enters the layered tank from the middle of the layered tank;
[0040] (3) After the layered tank is full, the layered interface can be seen from the liquid level gauge in the transparent tube, continue to feed, the upper light phase overflows from the top of the layered tank to the methanol tank after extract...
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