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Process for removing palladium or platinum catalyst poisons from a beta acid solution and the use of the beta acid solution or beta acids obtained for the production of 4-deoxy-alpha-acids by hydrogenation
Process for removing palladium or platinum catalyst poisons from a beta acid solution and the use of the beta acid solution or beta acids obtained for the production of 4-deoxy-alpha-acids by hydrogenation
Beta acids, separated from hop extracts, are purified prior to hydrogenolysis by mixing with an aqueous solution of polyvalent metal ions, preferably edible ions such as magnesium or calcium ions, separating the aqueous beta acids from insoluble materials containing catalyst poisons, and recovering the thus-purified beta acids which are catalyst-poison free and in a form suitable for hydrogenolysis to 4-desoxy alpha acids.
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