Glycolysis recycling of rigid waste polyurethane foam from refrigerators

被引：41

作者：

Zhu, P. ^{[1
,2
]}

Cao, Z. B. ^{[1
,2
]}

Chen, Y. ^{[1
,2
]}

Zhang, X. J. ^{[1
,2
]}

Qian, G. R. ^{[1
,2
]}

Chu, Y. L. ^{[1
,2
]}

Zhou, M. ^{[3
]}

机构：

[1] Shanghai Univ, Coll Environm & Chem Engn, Shanghai 200444, Peoples R China

[2] Zhejiang Gongshang Univ, Coll Environm Sci & Engn, Zhejiang Prov Key Lab Solid Waste Treatment & Rec, Hangzhou 310018, Zhejiang, Peoples R China

[3] Semicond Mfg Int Shanghai Corp, Shanghai 201203, Peoples R China

来源：

ENVIRONMENTAL TECHNOLOGY | 2014年 / 35卷 / 21期

关键词：

rigid waste polyurethane foam; scrapped refrigerators; glycolysis regents; glycolysis condition; regeneration; SPLIT-PHASE GLYCOLYSIS; POLYOL RECOVERY; DECOMPOSITION; DISPOSAL;

D O I：

10.1080/09593330.2014.918180

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Rapid growth of rigid waste polyurethane (WPUR) foam from refrigerators attracts the attention all over the world. In this study, glycolysis was chosen to treat WPUR from scrapped refrigerators collected in Shanghai, China. Glycolysis reagents and catalysts were selected. The results indicated that the glycolysis efficiency of ethylene glycol (EG) was higher than that of diethylene glycol, and the catalytic efficiency of alkali metal salts (NaOH) was more excellent than that of triethanolamine and organic salts of alkali metal (NaAc). When EG was 100% WPUR as a glycolysis reagent and NaOH was 1% WPUR as a catalyst at a constant temperature of 197.85 degrees C for 2 h, the glycolysis product had the highest glycolysis conversion rate. In order to maximize the recycling of WPUR, regenerative Polyurethane was performed by adding 10% distilled mixed polyol, which conformed to the QB/T 26689-2011 requirements.

引用

页码：2676 / 2684

页数：9

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