| 摘要 |
<p>What is proposed is a process for producing a free-flowing and storage-stable solid comprising essentially a-alanine-N,N-diacetic acid and/or one or more derivatives of a-alanine-N,N-diacetic acid, proceeding from a powder of a-alanine-N,N-diacetic acid and/or one or more derivatives of a-alanine-N,N-diacetic acid, by a. compacting the powder of a-alanine-N,N-diacetic acid on a roller press to obtain slugs, b. crushing the slugs and c. screening the crushed slugs, which is characterized in that the compaction on the roller press is carried out with addition of polyethylene glycol having a melting point greater than 35°C.</p> |
