In this work, for the first time, the multi mineral complexes composed of three and four elements Fe, Mn, Cu & Zn and Cu, Mn & Zn, respectively) bounded to glycine have been produced to be used as a feed additive for farm animals. To the best of our knowledge, all products were synthesized for the first time as novel compounds containing several transition metals. The impact of the drying procedure on the microstructure, chemical composition and crystalline phase was evaluated using different analytical techniques. The trace element concentration distributions and homogeneity were also studied. A single crystal of dehydrated metal glycinate compound was synthesized from drying of glycine and a multi-metal sulphate solution under room temperature. On the other hand, both spray drying and spray granulation of this similar solution results to the formation of crystalline powders. The crystalline powders obtained present a typical metal-sulphate-glycinate dehydrated crystalline form and a homogeneous distribution of the metals within the product particles. The developed products have been compared and their differences have been underlined.

中文翻译：

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干燥方法对甘氨酸配合物晶相形成和金属元素分布的重要性

在这项工作中，首次生产了由三种和四种元素铁、锰、铜和锌以及铜、锰和锌与甘氨酸结合组成的多矿物质复合物，用作农场的饲料添加剂动物。据我们所知，所有产品都是首次合成为含有多种过渡金属的新型化合物。使用不同的分析技术评估干燥程序对微观结构、化学成分和晶相的影响。还研究了微量元素浓度分布和均匀性。通过在室温下干燥甘氨酸和多金属硫酸盐溶液，合成了脱水甘氨酸金属盐化合物的单晶。另一方面，这种类似溶液的喷雾干燥和喷雾造粒都会导致结晶粉末的形成。获得的结晶粉末呈现出典型的金属硫酸盐甘氨酸盐脱水结晶形式以及金属在产物颗粒内的均匀分布。对所开发的产品进行了比较，并强调了它们的差异。