Title:
PREPARATION METHOD OF PIMARIC ACID TYPE RESIN ACID
Document Type and Number:
WIPO Patent Application WO/2010/105574
Kind Code:
A1
Abstract:
Preparation method of pimaric acid type resin acid includes the following steps: (1) adding refined resin acid, turpentine or rosin and maleic anhydride at a mass ratio of 1 :0.3-1.5 into a reaction bottle, dissolving them in C1-C10 lower fatty acid solvent, the mass ratio of the C1-C10 low fatty acid to refined resin acid is 0.05-30:1, then carrying out addition reaction by heating directly or with assistance of microwave, subsequently cooling, crystallizing, filtering, and washing, and (2) combining the filtrates collected in step (1), stripping of the solvent by vacuum distillation to obtain pimaric acid type resin acid coarse product, dissolving the resulting coarse product in NaOH aqueous solution to prepare aqueous solution of pimaric acid type resin acid salt, adjusting pH to 6-14 with a mineral acid or an organic acid under stirring, and directly purifying or acidifying followed by purifying the resulting precipitation to obtain the final product. The method has the characteristics of high yield, high product content, low cost, and low environmental pollution.
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Inventors:
ZHAO ZHENDONG (CN)
CHEN YUXIANG (CN)
BI LIANGWU (CN)
GU YAN (CN)
LI DONGMEI (CN)
WANG JING (CN)
LU YANJU (CN)
CHEN YUXIANG (CN)
BI LIANGWU (CN)
GU YAN (CN)
LI DONGMEI (CN)
WANG JING (CN)
LU YANJU (CN)
Application Number:
PCT/CN2010/071134
Publication Date:
September 23, 2010
Filing Date:
March 18, 2010
Export Citation:
Assignee:
INST CHEM IND FOREST PROD CAF (CN)
ZHAO ZHENDONG (CN)
CHEN YUXIANG (CN)
BI LIANGWU (CN)
GU YAN (CN)
LI DONGMEI (CN)
WANG JING (CN)
LU YANJU (CN)
ZHAO ZHENDONG (CN)
CHEN YUXIANG (CN)
BI LIANGWU (CN)
GU YAN (CN)
LI DONGMEI (CN)
WANG JING (CN)
LU YANJU (CN)
International Classes:
C07C51/42; C09F1/02; C07C61/08
Foreign References:
| US3658891A | 1972-04-25 | |||
| CN101508871A | 2009-08-19 | |||
| CN101020630A | 2007-08-22 | |||
| CN101302151A | 2008-11-12 | |||
| CN101302151A | 2008-11-12 | |||
| US3562243A | 1971-02-09 |
Other References:
GEORGE, GONIS ET AL.: "Preparation of Maleopimaric Acid", IND.ENG.CHEM.PROD.RES.DEVELOP., vol. 12, no. 4, 1973, pages 326 - 327, XP055098380
PALKIN S, HARRIS T H: "The resin acids of American Turpentine Gum: The preparation of the pimaric acids from Pinus Palustris [J", J AM CHEM SOC, vol. 55, no. 9, 1933, pages 3677 - 3684
SANDERMANN W.: "Chemistry and Technology of Natural Resin, Turpentine, and Wood Pulp Oil Slick [M", 1982, CHINA FORESTRY PUBLISHING, pages: 56
LOEBLICH V M, LAWRENCE R V: "A new method for isolating isodextropimaric acid from pine oleoresin and rosin [J", J ORG CHEM, vol. 23, no. 1, 1958, pages 25 - 26
HARRIS G C, SANDERSON T F: "Rosin acids (III) The isolation of dextropimaric acid, a new pimaric-type acid, isodextropimaric acid [J", J AM CHEM SOC, vol. 70, no. 1, 1948, pages 2079 - 2085
See also references of EP 2410030A4
PALKIN S, HARRIS T H: "The resin acids of American Turpentine Gum: The preparation of the pimaric acids from Pinus Palustris [J", J AM CHEM SOC, vol. 55, no. 9, 1933, pages 3677 - 3684
SANDERMANN W.: "Chemistry and Technology of Natural Resin, Turpentine, and Wood Pulp Oil Slick [M", 1982, CHINA FORESTRY PUBLISHING, pages: 56
LOEBLICH V M, LAWRENCE R V: "A new method for isolating isodextropimaric acid from pine oleoresin and rosin [J", J ORG CHEM, vol. 23, no. 1, 1958, pages 25 - 26
HARRIS G C, SANDERSON T F: "Rosin acids (III) The isolation of dextropimaric acid, a new pimaric-type acid, isodextropimaric acid [J", J AM CHEM SOC, vol. 70, no. 1, 1948, pages 2079 - 2085
See also references of EP 2410030A4
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (No.179 Zhongshan Road Gulo, Nanjing Jiangsu 5, CN)
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