Chlorinated products of plastic pyrolysis

被引：1

作者：

Blazsó, M ^{[1
]}

机构：

[1] Hungarian Acad Sci, Chem Res Ctr, Res Lab Mat & Environm Chem, H-1525 Budapest, Hungary

来源：

MACROMOLECULAR SYMPOSIA | 1998年 / 135卷

关键词：

D O I：

10.1002/masy.19981350126

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The formation of various chlorinated products in pyrolysis of polymers and plastics additives was studied. Formation of chlorobenzenes (in addition to the monomers) from poly(chlorostyrene) and poly(vinylbenzyl chloride) was observed. Hydrogen chloride is only produced from these polymers at above 600 degrees C when the chlorine atoms are cleaved off and abstract hydrogen. A similar process takes place in aromatic chlorine-containing dyes, in which the strong aromatic molecular structure prevents the thermal cleavage of chloroaromatic volatile products. We have observed that cupric and ferric chlorides chlorinate phenolic thermal decomposition products of plastic materials which originate either from the polymer or from the stabilizer. The highest yields of chlorophenols are obtained in pyrolysis at around 700 degrees C.

引用

页码：237 / 245

页数：9

共 15 条

[1] REACTION PATHWAYS FOR THE FORMATION OF POLYCHLORO-DIBENZODIOXINS (PCDD) AND POLYCHLORO-DIBENZOFURANS (PCDF) IN COMBUSTION PROCESSES .2. CHLOROBENZENES AND CHLOROPHENOLS AS PRECURSORS IN THE FORMATION OF POLYCHLORO-DIBENZODIOXINS AND POLYCHLORO-DIBENZOFURANS IN FLAME CHEMISTRY [J].

BALLSCHMITER, K ;

BRAUNMILLER, I ;

NIEMCZYK, R ;

SWEREV, M .

CHEMOSPHERE, 1988, 17 (05) :995-1005

[2] THERMAL-BEHAVIOR AND DEGRADATION MECHANISM OF BROMINATED POLYSTYRENES [J].

BERTINI, F ;

AUDISIO, G ;

KIJI, J .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1995, 33 :213-230

[3] TOXIC COMBUSTION BY-PRODUCTS FROM THE INCINERATION OF CHLORINATED HYDROCARBONS AND PLASTICS [J].

BLANKENSHIP, A ;

CHANG, DPY ;

JONES, AD ;

KELLY, PB ;

KENNEDY, IM ;

MATSUMURA, F ;

PASEK, R ;

YANG, GS .

CHEMOSPHERE, 1994, 28 (01) :183-196

[4] THERMAL-DECOMPOSITION OF LOW-DENSITY POLYETHYLENE IN THE PRESENCE OF CHLORINE-CONTAINING POLYMERS [J].

BLAZSO, M ;

ZELEI, B ;

JAKAB, E .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1995, 35 (02) :221-235

[5] Thermal decomposition of low-density polyethylene in the presence of iron and copper chlorides [J].

Blazso, M ;

Zelei, B .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1996, 36 (02) :149-158

[6] Formation of chlorinated phenols under pyrolysis from a phenolic antioxidant used as plastics additive [J].

Blazso, M .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1997, 40-1 :69-78

[7] KINETICS AND MECHANISM OF THE THERMAL-DEGRADATION OF POLY-P-CHLOROMETHYLSTYRENE - THERMOGRAVIMETRIC AND GAS-CHROMATOGRAPHY MASS-SPECTROMETRY STUDIES [J].

BOINON, B ;

AINADTABET, D ;

MONTHEARD, JP .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 1988, 13 (03) :171-181

[8] A REVIEW OF THE ROLE OF IRON CONTAINING COMPOUNDS IN CHAR FORMING SMOKE SUPPRESSING REACTIONS DURING THE THERMAL-DECOMPOSITION OF SEMIRIGID POLY(VINYL CHLORIDE) FORMULATIONS [J].

CARTY, P ;

METCALFE, E ;

WHITE, S .

POLYMER, 1992, 33 (13) :2704-2708

[9]

CHOUDRY GG, 1982, CHLORINATED DIOXINS

[10] PHENOL AND HCL AT 550-DEGREES-C YIELD A LARGE VARIETY OF CHLORINATED TOXIC COMPOUNDS [J].

EKLUND, G ;

PEDERSEN, JR ;

STROMBERG, B .

NATURE, 1986, 320 (6058) :155-156

← 1 2 →