3081-01-4Relevant articles and documents
Highly dispersed Pt catalyst supported on nanoporous carbon derived from waste PET bottles for reductive alkylation
Wenlong, Yu,Zhe, Chen,Shitao, Yu,Junwei, Ding,Yuling, Shan,Fusheng, Liu,Ming, Li
, p. 31092 - 31101 (2019)
Nanoporous carbon (NPC) derived from waste polyethyleneterephthalate (PET) bottles was prepared by a MgOlated method and employed as a support for a highly dispersed platinum catalyst. The NPCs and Pt/NPCs catalysts were characterized by BET, SEM, TEM, XRD and ICP-OES. The catalytic performance of the NPC supported Pt catalysts for reductive alkylation of p-aminodiphenylamine (p-ADPA) with methyl isoamyl ketone (MIAK) was investigated. The textural properties of the NPC prepared could be tailored by changing the size of the MgOlate and the MgO/waste PET powder mass ratio. When the pore size was below 14 nm, the catalytic performance of the Pt/NPCs for the reductive alkylation could be improved with increasing the pore size of the NPCs. Profiting from the higher mechanical strength and the ideal pore structure, Pt/O?NPC50(1/1)-PTA had excellent reusability, which could maintain 98% conversion of p-ADPA after reused 10 times.
Stabilization of unsaturated carboxylic acid esters with mixtures of polyalkylene-amines and arylenediamines
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, (2008/06/13)
A method of inhibiting polymerization of unsaturated carboxylic acid esters and improved unsaturated carboxylic acid ester compositions are described. The method comprises, and the compositions are prepared by, incorporating into the ester composition a combination comprising polyalkyleneamine and arylenediamine of the formula STR1 in which X is hydrogen, chloro, trichloromethyl, trifluoromethyl, nitro, lower alkyl, lower alkoxy or phenoxy, R is hydrogen or alkyl, and R1 is alkyl or phenyl or R and R1 together with the nitrogen atom is a heterocycle selected from the group consisting of pyrrolidinyl, 2,5-dimethyl pyrrolidinyl, piperidino and hexahydro-1H-azepin-1-yl.