Production of biodiesel from low-quality vegetable oils with a high content of free fatty acids by alkaline transesterification

V Kopchev - BIO Web of Conferences, 2024 - bio-conferences.org
The extraction of natural fats as well as the production of derived products based on them
are renewable processes that play a major role in the modern energy industry. An example …

[PDF][PDF] OVERVIEW OF THE POSSIBILITIES OF REPLACING MINERAL BASE OILS IN METAL WORKING FLUIDS WITH VEGETABLE OILS AND THEIR DERIVATIVES

APV Kopchev - conf.uni-ruse.bg
Metal working fluids (MWFs) are widely used in industry. Most often these are water-oil
emulsions based on mineral oil. Huge amounts of MWFs are used annually worldwide, and …

[PDF][PDF] APPLICATION OF NATURAL ADDITIVES TO METALWORKING FLUIDS BASED ON AQUEOUS EMULSIONS OF VEGETABLE OR MODIFIED VEGETABLE …

APV Kopchev - conf.uni-ruse.bg
A large part of metalworking fluids (MWFs) are used in the form of 5-10% aqueous
emulsions of lubricating oils. This requires metalworking fluids to have good lubricating …