Organic modification of montmorillonite and effect of catalytic selectivity on the  dimerization of unsaturated fatty acid

Xue HUANG; Guoqiang YIN; Guangzhu FENG

Makale detayları

Organic modification of montmorillonite and effect of catalytic selectivity on the dimerization of unsaturated fatty acid

Yazarlar:

Xue HUANG | Guoqiang YIN | Guangzhu FENG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2018 Vol.42 Issue 1, pp.50-62

Belge Tipi:

Makale

Yayın Tarihi:

1/2018

Belge Dili:

Türkçe

Document ID (Org No.):

2000726234

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

This study describes the selective synthesis of C36-dimer fatty acids, by reacting unsaturated fatty acid at  533 K for 6 h in the presence of montmorillonite and lithium chloride as the catalyst and cocatalyst, respectively. The  catalytic performance of different montmorillonite and organic modified montmorillonite catalysts was investigated in  the dimerization of technical grade unsaturated fatty acid, and the influence of the catalyst structure and composition  on the catalytic performance was analyzed. All the samples were characterized by X-ray diffraction (XRD), Fourier  transform-infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscopy (TEM),  thermogravimetry (TG), and dispersion experiments. The results show that the layer spacing and dispersion property  of the montmorillonite crystal have important effects on its catalytic performance and the yield of the product. In the  dimerization experiments, the maximum yield of the dimer acid is found to be 70.15%, while the lowest yield is 32.37%.  It is thought that the larger interlayer spacing in the montmorillonite provides more reaction space for the unsaturated  fatty acid, allows the generation of a large volume of dimeric molecules, and helps the product molecules to diffuse out  from the layered structure.

Makale detayları

Organic modification of montmorillonite and effect of catalytic selectivity on the dimerization of unsaturated fatty acid

Yazarlar: Xue HUANG | Guoqiang YIN | Guangzhu FENG

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2018 Vol.42 Issue 1, pp.50-62

Belge Tipi: Makale

Yayın Tarihi: 1/2018

Belge Dili: Türkçe

Document ID (Org No.): 2000726234

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Xue HUANG | Guoqiang YIN | Guangzhu FENG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2018 Vol.42 Issue 1, pp.50-62

Belge Tipi:

Makale

Yayın Tarihi:

1/2018

Belge Dili:

Türkçe

Document ID (Org No.):

2000726234

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527