A water absorption and catalytic combustion process was used to treat PET polyester waste gas containing ethylene glycol, 2-methyl-1, 3-dioxolane and acetic aldehyde. 应用水吸收-催化燃烧技术处理PET聚酯生产中排放的含乙二醇、2-甲基-1,3-二氧戊环、乙醛等废气。
Water absorption could effectively remove high boiling point ethylene glycol, and equilibrate total hydrocarbons concentration by absorption and stripping of acetic aldehyde. 水吸收可以有效脱除高沸点的乙二醇,通过对乙醛的吸收、解吸作用使废气的总烃浓度得到均匀化处理;
N-Octyl aldehyde glycol acetal was synthesized using n-octyl aldehyde and glycol as raw materials and lanthanum methanesulfonate as catalyst. 以正辛醛和乙二醇为原料,甲基磺酸镧为催化剂,合成了正辛醛缩乙二醇。
Through atom transfer radical polymerizations and polymer end-modifications, amphiphilic dynamic block copolymer systems, which are polystyrene-b-poly ( ethylene glycol) ( PS-b-PEG) with acylhydrazone bond, are formed via condensation of acylhydrazine bonds with aldehyde bonds. 基于原子转移自由基法和聚合物末端功能改性,由酰肼键和醛基缩合反应,合成了一系列酰腙型两亲性动态共聚物聚苯乙烯-b-聚乙二醇(PS-b-PEG)。