USE OF 2,6-DI-TERT.-BUTYL-P-KRESOL TO INCREASE THE STORAGE STABILITY OF BIODIESEL

摘要

A process for the improving the storage stability of biodiesel comprises dosing in a stock solution (I), comprising 15-60 wt.% 2,4-di-tert-butylhydroxy toluene (BHT) dissolved in biodiesel, to the biodiesel at a concentration of 0.005-2 wt.% BHT (with respect to the total solution of biodiesel). Independent claims are also included for: (1) the stock solution (I) and; (2) a process for the production of the stock solution (I), optionally containing other additives by the addition of liquid BHT to biodiesel at 70-120 [deg]C with stirring to a concentration of 15-60 wt.%.