Crude wood vinegar impurity-removing and quality-improving technology and application thereof

Abstract

The invention relates to a crude wood vinegar impurity-removing and quality-improving technology and application thereof. The crude wood vinegar impurity-removing and quality-improving technology comprises the following steps: decolorizing through exchange: adding strong alkali anion exchange resin into crude wood vinegar, sufficiently mixing, then exchanging for 1-2 hours, and after completion ofthe exchange, sieving off the strong alkali anion exchange resin by using a filter screen; separating impurities and removing peculiar smell: adding hydrogen peroxide into the crude wood vinegar by three times, standing, and filtering out the impurities by using the filter screen to obtain wood vinegar separated at the third time; irradiating the finally separated wood vinegar by using an electron beam to obtain impurity-removed and quality-improved wood vinegar. The crude wood vinegar impurity-removing and quality-improving technology is simple and efficient, and by the crude wood vinegar impurity-removing and quality-improving technology, harmful substances are turned into beneficial substances, sustainable utilization of resources is achieved, the cost is low, the process is simple, requirements on equipment and manpower are low, the application is wide and the pollution is free. The crude wood vinegar impurity-removing and quality-improving technology is wide in application, and can be applied to the field of deodorization, disinfection, skin care and the like.

Description

technical field [0001] The invention relates to a method for removing impurities, removing harm and improving quality of crude wood vinegar, in particular to a process for removing impurities and improving quality of crude wood vinegar and its application. Background technique [0002] Crude wood vinegar is a liquid formed by condensing and liquefying the flue gas produced during charcoal burning of wood (including fruit shells, fruit stones, moso bamboo, sawdust, etc.). Crude wood vinegar, brown or yellow in color, has a smoky and pungent smell. In addition to water and acetic acid, the main components also contain a small amount of phenols, esters, hydrocarbons and other compounds mixed in wood tar, as well as trace amounts of K, Ca, Mg, Zn, Mn, Fe and other minerals . It is worth noting that a certain amount of dust, charcoal particles, wood tar, triphenyl tetrapropyril are miscible in the crude wood vinegar formed by the condensation of flue gas during the carbonizatio...

AI Technical Summary

Problems solved by technology

The defects of these methods are: either the refining is not thorough and takes a long time; or the refining equipment and technology costs are high, and the operation is cumbersome; or the refined product rate is low, and it is difficult to remove harmful components such as triphenyl tetrapropyril

Although the stock solution refined by the above common

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