非贵金属催化剂催化松香歧化反应研究

›› 2003, Vol. 23 ›› Issue (2): 21-24.

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STUDY ON DISPROPORTIONATION OF GUM ROSIN CATALYZED BY NON-NOBLE METAL

WANG Ya ming, SONG Sheng mei, ZHOU Mei cun, JIA Qing ming, SHAN Shao yun

Institute of Biological and Chemical Engineering, Kunming University of Science and Technology, Kunming 650224, China

Received:2002-08-19 Revised:1900-01-01 Online:2003-06-30 Published:2003-06-30

Abstract

Abstract: Nanometer particle of non noble metal catalysts have been preparated by means of metal alkoxide hydrolysis.F/M_nO_x catalyst was used to catalyze the disproportionation of gum rosin from Pinus kesiya var. langbinanensis at 270℃ for 3 h under N₂ stream and rosin:catalyst:solvent=100:2.5:1(wt).The disproportionated rosin with the content of dehydroabietic acid>48%, acid value>152 mgKOH/g, softening point>79℃, unsaponifiable matters<8%, colour No.(Lovibond) <2 was produced.

Key words: non-noble metal catalyst, nanometer particle, rosin, disproportionated rosin

CLC Number:

TQ351.471

WANG Ya ming;SONG Sheng mei;ZHOU Mei cun;JIA Qing ming;SHAN Shao yun. STUDY ON DISPROPORTIONATION OF GUM ROSIN CATALYZED BY NON-NOBLE METAL[J]. , 2003, 23(2): 21-24.

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STUDY ON DISPROPORTIONATION OF GUM ROSIN CATALYZED BY NON-NOBLE METAL

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