| 摘要 |
The invention relates to a method for removing phosphoric acid, thiamine triphosphate and higher thiamine phosphates from solutions that contain phosphoric acid, thiamine monophosphate, thiamine diphosphate, diamine triphosphate and higher phosphates. The inventive method is characterized by passing the phosphoric acid solution of thiamine phosphates over a non-ionogenic adsorber resin which comprises unsaturated cyclic nitrogen bases and eluting thiamine monophosphate and thiamine diphosphate with a suitable solvent.
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