Continuous production process for the dye p-phenanthracenecarbazole
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I would like to ask how continuous production of dyes such as acenaphthene and carbazole can be achieved on a continuous basis, particularly in terms of the crystallization process Please give me some advice.
Traditional carbazole is a by-product of coal tar; its purity is below 98%, it contains many impurities, and its production cost is high. Recent advances in synthesis techniques have led to the development of a catalyst developed exclusively by our company for the production of carbazole from diphenylamine through dehydrogenation. This catalyst has been successfully used on a large scale, resulting in a product purity of over 99%, and after further purification, the purity reaches over 99.5%. It is pollution-free, has a low cost, requires only 1.2 tons of raw materials, and involves minimal investment. We are seeking partners for collaboration: luxwyf@163.com
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