Resumo

ALBARRACIN, Patricia M.; PAZ, Dora  e  OCTAVIANO, Mario A.. Use of saccharose esters in cane sugar industry rotative filters. Rev. ind. agríc. Tucumán [online]. 2005, vol.82, n.1-2, pp.59-62. ISSN 1851-3018.

The experimental results derived from adding saccharose ester water solutions, nonionic surfactants, when filtrating wastes in sugar cane juice clarifying process, were analyzed. Experiments were carried out in a sugar mill in Tucumán. Tests consisted in adding the surfactant to wastes before feeding the vacuum rotative filters with them. Results were compared with those obtained without adding the product. The following parameters were determined: viscosity of the mixture feeding the filter, filter cake humidity, filter cake saccharose concentration and filtered juice saccharose concentration. Results showed a marked diminution in the viscosity of the mixture feeding the filters, which resulted in higher filtrability, and thus, in lesser humidity of the filter cake. At different surfactant concentration levels, saccharose losses diminished between 8% and 13%. The analyzed parameters were favorable when adding saccharose esters during the filtration process, which led to better equipment capacity and saccharose loss reductions.

Palavras-chave : Surfactant; Viscosity; Sugar; Filtrability.

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