Process for the preparation of alkyl phenols from the cardanol hydrogenated for use as additives in lubricating oils and biodieseis

摘要

Processes for the preparation of alkyl phenols from the cardanol hydrogenated for use as additives in biodieseis and lubricating oils.To understand the present invention patent to processes for the preparation of alkyl phenols from the cardanol hydrogenated liquid extracted from cashew - Technical CNSL, aiming at its use as an additive (antioxidant primary) for application in biodieseis and lubricating oils sin Tu00e9ticos and non synthetic, which have excellent thermal and oxidative stability.Is soluble and stable in lubricating oils derived from oil and biodieseis. These processes, characterized by the bonding of the alkylating agent with a catalyst (Lewis acid) in a vessel (1), in which, added to the cardanol subsequently hydrogenated. The vase that is coupled to a temperature controller (2), a reflux condenser (3) and an addition funnel (4).In Act I still connects the reflux condenser to a pipe (5) to capture the acid gas generated, which in turn is directed to a tank (6) containing a base solution with the aim to neutralize the aforementioned gas. The times reacionais vary from 30 minutes to two hours, depe Ndendo reacionais conditions imposed in each case.The temperature of the reaction vessel (1) is kept constant during the whole time of reaction, an adjusted value and within the range of 25 to 60 degrees. After the completion of the procedures reacionais, following, the means of reaction are versed in hoppers of separation (7) for the development of procedures You wash, use basic solution (8) and subsequently with water (9).