| 摘要 |
<p>The invention pertains to a process for manufacturing a solid propionate salt from a mixture comprising propionate and succinate comprising the steps of
- providing an aqueous medium comprising succinate anions and propionate anions,
- providing an inorganic soluble salt in the aqueous medium in such an amount that the majority of succinate ions is converted to solid succinate salt while the majority of propionate ions remains in solution,
- separating the aqueous medium comprising the majority of propionate ions from the solid succinate salt,
- increasing the concentration of salt in the aqueous medium to convert the majority of propionate ions to solid propionate salt,
- separating the solid propionate salt from the aqueous medium. It has been found that with the process according to the invention a solid propionate salt can be obtained which has a high purity. More specifically, it has a low succinate content and a low content of organic contaminants.</p> |
