AMBER CLEANING METHOD Russian patent published in 2017 - IPC C04B41/53 B08B3/08 B08B3/12 

FIELD: chemistry.

SUBSTANCE: invention can be used, in particular, for cleaning and removing the oxidized crust from the surface of amber raw materials.

EFFECT: improving the quality of cleaning amber raw materials, minimizing the loss of valuable raw materials during cleaning, the ability to clean amber fines and amber irregular shapes with a lot of depressions and bulges, retaining the original shape of the amber, accelerating the cleaning process while simplifying the technological process of cleaning the amber, reducing energy consumption, using only harmless non-toxic solutions to remove the oxidized crust.

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