Properties of bleached pulp sheets of avocado wood (Persea americana Mill.) pulped by Kraft and Soda processes
Chips of avocado wood (Persea americana Mill.) were pulped by means of conventional Sodaand Kraft pulping processes. The pulps were bleached with an elemental-chlorine-free sequence OD1-Eop-D2, pre-setting reaction conditions for the first chlorine dioxide stage (D1). The results show thatduring the...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2006 |
| País: | México |
| Institución: | Universidad de Guadalajara |
| Repositorio: | Redalyc-UDG |
| OAI Identifier: | oai:redalyc.org:61712104 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=61712104 |
| Access Level: | acceso abierto |
| Palabra clave: | Agrociencias physical soda pulping Kraft pulping chlorine dioxide Persea americana Mill |
| Sumario: | Chips of avocado wood (Persea americana Mill.) were pulped by means of conventional Sodaand Kraft pulping processes. The pulps were bleached with an elemental-chlorine-free sequence OD1-Eop-D2, pre-setting reaction conditions for the first chlorine dioxide stage (D1). The results show thatduring the chemical pulping process, avocado wood is easier to cook than other hardwoods such aseucalyptus. The avocado pulp also showed a very good bleachability, reaching brightness levels of upto 92% ISO compared to 84% for eucalyptus after the ECF bleaching sequence. The avocado Kraftpulps required more chemical input in the bleaching sequence than the Soda pulps. On the other hand,the physico-mechanical properties of the pulp were not notably reduced by the bleaching process, theKraft pulp being stronger than the soda pulp. Strength properties of avocado are similar to those ofeucalyptus; therefore this raw material constitutes a worthwhile choice for cellulosic fiber supply. |
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