Artigo

Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas

This study involves the use of leftover wood rolls from the manufacture of plywood in Amazonas State for use in the pulp and paper industry. This is a continuation of a previous study with the same goal, but focussing on individual logs. The material utilized in this research was a mixture of chips...

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Autor principal: Corrêa, Antônio de Azevedo
Grau: Artigo
Idioma: pt_BR
Publicado em: Acta Amazonica 2020
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/14081
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spelling oai:repositorio:1-14081 Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas Corrêa, Antônio de Azevedo This study involves the use of leftover wood rolls from the manufacture of plywood in Amazonas State for use in the pulp and paper industry. This is a continuation of a previous study with the same goal, but focussing on individual logs. The material utilized in this research was a mixture of chips of rolls, corresponding to the following species: Copaifera multijuga Hayne, Hevea guianensis Aubl., Jacareúba Calophyllum brasiliense Camb., and Virola Virola surinamensis Warb., chosen because of their chemical composition; each species having the same percentage by weight, in the pulp mixture. The methods used in the samples were those traditionally utilized to evaluate raw materials for the pulp and paper industry. Results obtained are discussed is in relation to chemical analysis, classification, micromeasurements of fiber density of chips, and cooking. The sulphur-soda process and soda and sulphate process for the production of chemical pulp and neutral sulphite are compared. Bleaching of raw pulp, affected by C.E.H.H., C.E.D.E.D. and C.E.H.D.E.D. processes is examined, as well as are the physical-mechanical characteristics of the paper and corrugated board obtained from the raw and bleached pulp. Numerous conclusions are inferred, the most important of which is that pulp produced from residual logs from plywood manufacturing is of practical use, especially in the production of corrugated board. Nesta pesquisa é apresentado o estudo da mistura dos "rolos-restos" das Fábricas de Compensado do Estado do Amazonas, tendo em vista o seu aproveitamento pela indústria de celulose a papel. Este estudo foi efetuado para complementar a pesquisa anterior (Acta Amazônica, março/82) efetuada com a mesma finalidade, mas enfocando os "roletes" individualmente. O material utilizado na pesquisa foi a mistura dos cavacos dos "roletes", correspondentes às seguintes espécies madeireirasCopaíba, Copaifera multijuga Hayne; Jacareúba, Calophyllum brasiliense Camb; Virola, Virola surinamensis Warb; Hévea, Hevea guianensis Aubl, escolhidas de acordo com as suas composições químicas e tendo cada espécie a mesma participação em peso, na mistura. A metodologia empregada nos ensaios foi a que tradicionalmente é utilizada em pesquisa para avaliar matérias-primas para a indústria de celulose a papel. Mostraram-se os resultados obtidos e fez-se a discussão desses resultados na parte concernente à análise química, classificação e micrometria das fibras, densidade dos cavacos, cozimento, considerando os processos Soda/Enxofre, Soda e Sulfato, para a produção de pasta química e Sulfito Neutro para a obtenção de pasta de alto rendimento. Examinaram-se os alvejamentos das pastas cruas, efetuados pelos processos C.E.H.H.; C.E.D.E.D. e C.E.H.D.E.D., bem como, as características físico-mecânicas dos papéis e cartões obtidos das pastas cruas e alvejadas. Tiraram-se inúmeras conclusões, sendo a mais positiva a de que as pastas de alto rendimento obtidas dos "rolos-restos" são passíveis de ser utilizadas principalmente na manufatura de corrugado para cartão. 2020-04-24T16:28:00Z 2020-04-24T16:28:00Z 1982 Artigo https://repositorio.inpa.gov.br/handle/1/14081 10.1590/1809-43921982123619 pt_BR Volume 12, Número 3, Pags. 619-638 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Acta Amazonica
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language pt_BR
description This study involves the use of leftover wood rolls from the manufacture of plywood in Amazonas State for use in the pulp and paper industry. This is a continuation of a previous study with the same goal, but focussing on individual logs. The material utilized in this research was a mixture of chips of rolls, corresponding to the following species: Copaifera multijuga Hayne, Hevea guianensis Aubl., Jacareúba Calophyllum brasiliense Camb., and Virola Virola surinamensis Warb., chosen because of their chemical composition; each species having the same percentage by weight, in the pulp mixture. The methods used in the samples were those traditionally utilized to evaluate raw materials for the pulp and paper industry. Results obtained are discussed is in relation to chemical analysis, classification, micromeasurements of fiber density of chips, and cooking. The sulphur-soda process and soda and sulphate process for the production of chemical pulp and neutral sulphite are compared. Bleaching of raw pulp, affected by C.E.H.H., C.E.D.E.D. and C.E.H.D.E.D. processes is examined, as well as are the physical-mechanical characteristics of the paper and corrugated board obtained from the raw and bleached pulp. Numerous conclusions are inferred, the most important of which is that pulp produced from residual logs from plywood manufacturing is of practical use, especially in the production of corrugated board.
format Artigo
author Corrêa, Antônio de Azevedo
spellingShingle Corrêa, Antônio de Azevedo
Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas
title Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas
title_short Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas
title_full Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas
title_fullStr Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas
title_full_unstemmed Estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do Estado do Amazonas
title_sort estudo papeleiro da mistura dos "rolos-restos" das fábricas de compensados do estado do amazonas
publisher Acta Amazonica
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/14081
_version_ 1787144090612137984
score 11.755432