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Propylene glycols are used as initiators for synthesis of nonionic surfactants made from polymerization of ethylene oxides with other oxides such as propylene or butylene oxides. Propylene glycol is also used as the starting material for the synthesis of propylene glycol esters with sorbitol and/or fatty acids.ust suppression. Dust formation and the associated housekeeping issues, plus the danger of dust explosions, make dust suppression important in mining and cement grinding applications.
The solid component can also be a nonionic surfactant, such as a triblock copolymer of ethylene oxide/propylene oxide/ethylene oxide (EO/PO/EO). Said solid nonionic surfactant typically consists of 80% ethylene oxide and has a molecular weight usually greater than about 10,000.. 88-92% of a liquid EO/PO/EO triblock copolymer having the Formula: ##STR14## wherein x+x'=500; y=1,000; molecular weight=1,500; b. 8-12% of a solid EO/PO/EO triblock copolymer having the Formula: ##STR15## wherein x+x'=7,000; y=3,000; molecular weight=10,000.