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process for the production of organic huminhaltiger in water soluble both composite from brown coal, wachskohlen, ligniten, sapropeliten, karbohumaten and peat by treatment with the mineral acids and alkalis.
process for the production of organic huminhaltiger in water soluble both composite from brown coal, wachskohlen, ligniten, sapropeliten, karbohumaten and peat by treatment with the mineral acids and alkalis.