SciELO - Scientific Electronic Library Online

 
vol.41 número1On MHD mixed convection with soret and dufour effects past a vertical plate embedded in a porous mediumProduction of rigid polyurethane foams from soy-based polyols índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

  • Não possue artigos citadosCitado por SciELO

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Bookmark


Latin American applied research

versão impressa ISSN 0327-0793

Resumo

BELTRAN, A.A.  e  BOYACA, L.A.. Preparation of oleochemical polyols derived from soybean oil. Lat. Am. appl. res. [online]. 2011, vol.41, n.1, pp. 69-74. ISSN 0327-0793.

The hydroxylation of epoxidized soybean oil was performed in a well-mixed agitated reactor under isothermal operation. Two agents for hydroxylation were evaluated using a homogeneous catalyst. The tests were positive and the best results are achieved with molar relations of alcohol to epoxide of 4:1 for ethanol (T=70°C) and 6:1 for ethylene glycol (T=80°C), using sulfuric acid (2 % p/p) as a catalyst. The hydroxyl numbers of the oleochemical polyols obtained are 120 and 331 mg KOH/g, with theoretical functionalities of 2 and 6 for ethanol and ethylene glycol soy-based polyols, respectively.

Palavras-chave : Soybean Epoxide; Oleochemical Polyester Polyols; Hydroxylation with Ethylene Glycol.

        · texto em Inglês     · pdf em Inglês