Multiple alkali refining process for preparing low-acid value insulating oil by utilizing plant oil

• Main Authors: LIAO RUIJIN, XIANG JUNRU, YANG LIJUN, LI JIAN, ZHOU QUAN, CHEN WEIGEN, ZHANG ZHAOTAO, WANG YOUYUAN, DU LIN
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2012
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMISTRY; DETERGENTS; ESSENTIAL OILS; FATTY ACIDS THEREFROM; FUELS; INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS; LUBRICANTS; LUBRICATING COMPOSITIONS; METALLURGY; PEAT; PERFUMES; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

The invention discloses a multiple alkali refining process for preparing low-acid value insulating oil by utilizing plant oil, which comprises the following steps of: (1) performing alkali refining on the plant oil for the first time; (2) performing decoloration and deodorization treatment on the pl...