Kinetic analysis of dissociation of smithsonite from a set of non-isothermal data obtained at different heating rates

被引：13

作者：

Budrugeac, P

Criado, JM

Gotor, FJ

Popescu, C

Segal, E

机构：

[1] Univ Seville, CSIC, Ctr Mixto, Inst Ciencia Mat Sevilla, Seville 41092, Spain

[2] ICPE Res & Dev Inst Elect Engn, Bucharest 73204, Romania

[3] LACECA Res Ctr, Bucharest 73808, Romania

[4] Univ Bucharest, Fac Chem, Dept Phys Chem, Bucharest, Romania

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2001年 / 63卷 / 03期

关键词：

invariant kinetic parameters method; isoconversional method; smithsonite; thermal dissociation;

D O I：

10.1023/A:1010148306206

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The isoconversional methods (Friedman and Flynn-Wall-Ozawa) as well as the invariant kinetic parameters method (IKP) were used in order to work the TG data corresponding to the thermal dissociation of smithsonite. As a result we mention a mechanism change at T approximate to 671 K. For T > 671 K, which corresponds to heating rates in the range 0.57- 8.06 K min(-1), a reaction order model with 1 <n less than or equal to1.4 describes the experimental data.

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收藏

页码：777 / 786

页数：10

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