Metal working fluids represent a threat for workers and for the environment. In this paper an innovative technological and preventive approach is presented relying on the substitution of the base fluids with natural vegetable oil based esters. The results confirmed similar or better technical features of these fluids and a significant reduction of air pollution in particular for polycyclic aromatics.

An innovative selective hydrogenation process to improve the oxidative stability of rapeseed oil is also presented. In this way a very significant increase in the oxidative stability of the parent oil, determined by Rotary Bomb Oxidative Test, was observed. The hydrogenated oil is even more stable than High Oleic Sunflower Oil while keeping acceptable cold properties.

金属加工液对工人和环境构成威胁。在本文中，提出了一种创新的技术和预防方法，该方法依赖于用天然植物油基酯替代基础油。结果证实了这些流体具有相似或更好的技术特性，并且显着减少了空气污染，尤其是多环芳烃。

还介绍了一种创新的选择性氢化工艺，以提高菜籽油的氧化稳定性。以这种方式，观察到通过旋转炸弹氧化试验确定的母油的氧化稳定性非常显着增加。氢化油比高油酸葵花籽油更稳定，同时保持可接受的低温特性。