пречистено вещество, което химически наподобява животински мазнини

I'm sorry, but the term "пречистено вещество, което химически наподобява животински мазнини" is not a Spanish word or phrase. It appears to be in Bulgarian and translates to "purified substance that chemically resembles animal fats" in English. Therefore, I cannot provide Spanish definitions for it. If you have another word or phrase in Spanish that you would like defined, please let me know! tuntematon