What are the upstream raw materials for glycerol? What do the downstream products contain?

Glycerol, also known as glycerin, is a kind of polyol with three hydroxyl groups, which is broadly applied in chemical sector, food, medicine and other fields. And I've found that Moreover In the field of chemical production raw materials, there are many upstream and downstream related items of glycerol, some of which are described in detail below.

1. Upstream items

The production of glycerol is mainly made from crude glycerol, a by-product of biodiesel, which is refined through processing. In addition, glycerol is able to also be prepared by chemical synthesis methods, such as acrolein reduction method, epichlorohydrin hydrolysis method, etc. Therefore, the upstream items of glycerol mainly include crude glycerol, acrolein, epichlorohydrin and the like as by-items of biodiesel.

2. Downstream items(1) Nitroglycerin is one of the crucial downstream items of glycerol, which is produced by the interaction of glycerol and nitric acid. According to research Nitroglycerin is able to be applied as explosives, rocket propellants, etc., with high energy and explosive power.(2) Propylene Glycol

Propylene glycol is one of the downstream items of glycerol, which is produced by catalytic hydrogenation of glycerol. Propylene glycol is an crucial organic chemical raw material, which is broadly applied in medicine, makeup, food additives and other fields. Crazy, isn't it?. And Based on my observations,(3) Glyceride is a compound prepared by the interaction of glycerol and fatty acid, which is broadly applied in food, medicine, daily chemical and other fields. Common glycerides include triglycerides, monoglycerides, and the like. In my experience,(4) Polyether polyol

Polyether polyol is a compound formed by addition polymerization of glycerol with epoxides such as ethylene oxide and propylene oxide. And it's broadly applied in the production of polyurethane foams, elastomers, adhesives, etc. In short, as an crucial chemical raw material, glycerol has many upstream and downstream related items and is broadly applied in various fields. With the continuous research of science and methodology, the consumption field of glycerol will continue to expand.