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A novel type of biodegradable non-phosphor detergent builder was prepared by anionic ring-opening copolymerization of disodium cis-epoxysuccinate and 2,3-oxiranernethane sulfonic acid sodium. The structure of the copolymer was confirmed by FTIR, 1HNMR and X-ray diffraction. The molecular weights of the copolymers were 1,000–2,000 obtained from laser light scattering data indicating that they were...
The biodegradation extent of several alkyl xanthate collectors has been determined according to ISO 7827 and the kinetic model of biodegradation has been discussed. Meanwhile, the impact of molecular structure on biodegradability has been studied. The results indicated that the biodegradation extent of ethyl xanthate, n-butyl xanthate, n-amyl xanthate, isopropyl xanthate and iso-butyl xanthate can...
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