Method of treating a biomass and particularly fungi mycelia...

C - Chemistry – Metallurgy – 02 – F

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195/59, 195/71,

C02F 1/62 (2006.01) B01J 20/22 (2006.01) B01J 20/24 (2006.01) C12N 1/00 (2006.01) C22B 3/18 (2006.01) G21F 9/12 (2006.01)

Patent

CA 1051798

ABSTRACT OF THE DISCLOSURE: The present invention relates to a method of stiffening mycelia of fungi of the species Penicillium and Aspergillus, to be used for the industrial retention of metals selected from the group comprising uranium, radium and lead, from solutions thereof, the improvement comprising the steps of bringing the mycelia biomass, under agitation, into a dispersion medium consis- ting of non-polar organic solvents having their boiling point approximately corresponding to, or slightly higher than the temperature necessary for the due course of the stiffening reaction and their specific gravity being not too different from that of the mycelia, agglomerating the thus obtained suspension of mycelia to granule form by successively adding thereto a solution of stiffening components and diethanolamide of a higher fatty acid in a solvent which is not miscible with the dispersion medium, and stiffening the granules at a temperature of at least 70°C, adding a ferric chloride solution as a catalyst, then cooling the reaction medium and recovering by separation from the dispersion medium the stiffening mycelia in the form of granules.

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