Method for preparing white wax amber by thermal optimization of Baltic amber and white wax amber

Abstract

The invention relates to a method for preparing white wax amber by thermal optimization of Baltic amber. The method for preparing the white wax amber by the thermal optimization of the Baltic amber comprises the following steps that raw materials are placed in a high-temperature resistant container filled with a weak acid solution; the container is placed in a pressure furnace as a whole, pressurefurnace is filled with protective gas, and pressurizing is carried out; the inner side of the pressure furnace is heated, and heating is maintained; the pressure furnace is naturally cooled to room temperature; and the white wax amber is obtained. According to the method for preparing the white wax amber by the thermal optimization of the Baltic amber, the Baltic amber is thermally optimized in an acetic acid aqueous solution environment, on the one hand, the succinic acid in the Baltic amber can be inhibited from carrying out esterification reaction with alcohol-containing monomers through hydrolysis reaction, and the esterification reaction can be promoted to move reversely, so that the color of the amber after heat treatment is changed from yellow to uniform white; and on the other hand, the overflow of bubbles in amber raw materials in the process of high-temperature and high-pressure optimization is suppressed through the liquid environment, and the bubbles are further refined and increased, so that the amber can further exhibit a bone-white effect and further produce the white wax amber with pure texture.

Description

technical field [0001] The invention belongs to the technical field of gem processing, and relates to a method for preparing ash amber by thermally optimizing yellow Baltic amber, and ash amber prepared by the method. Background technique [0002] Baltic amber is a precious natural organic gemstone, which has the characteristics of rare output, non-renewable, high economic value and artistic value. Natural Baltic amber includes gold amber, beeswax, gold-wrapped honey, white wax, blood amber and flower amber, among which white wax amber (that is, bone white Baltic amber) has the highest economic and artistic value. Natural Baltic amber raw stones have different textures, often accompanied by impurities and cracks, and there are problems such as uneven color and too small weight, which affect the value of amber raw stones. By heat-treating Baltic amber of average quality, the purposes of improving color and texture, improving clarity, producing inclusions, and changing specie...

AI Technical Summary

Problems solved by technology

However, Baltic amber mainly undergoes two chemical reactions under the condition of high temperature and high pressure inert gas through this method—polymerization reaction and esterification reaction. Since the esterification reaction will make the appearance of amber yellow and cannot present a white appearance, this method cannot be used. Direct production and preparation of ash amber

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