Investigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries

In this study, the effect of elimination and relative decrease of sodium silicate along with substituting the organic complex of sulvy-x was investigated on optical properties of CMP pulp bleached by hydrogen peroxide. The brightness of paper were increased to 66.8%, yellowness decreased to 22% and...

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Autores principales:	Iman Akbarpoor, Hossein Resalti, Ali Solimani
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2011
Materias:	Sodium silicate organic complex sulvy-x CMP Pulp brightness yellowness OPACITY Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/8453652ad83b4666aee8e1a7c6f9e2ce
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spelling	oai:doaj.org-article:8453652ad83b4666aee8e1a7c6f9e2ce2021-12-02T03:52:43ZInvestigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries1735-09132383-112X10.22092/ijwpr.2018.117197https://doaj.org/article/8453652ad83b4666aee8e1a7c6f9e2ce2011-09-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_117197_9d3b1e0228cf67af4bc60f3b559f6771.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XIn this study, the effect of elimination and relative decrease of sodium silicate along with substituting the organic complex of sulvy-x was investigated on optical properties of CMP pulp bleached by hydrogen peroxide. The brightness of paper were increased to 66.8%, yellowness decreased to 22% and opacity decreased to 80% with increase in sodium silicate charge from 0.7% to 3%. Also, with complete elimination of sodium silicate and using of sulvy-x at different levels of 0.4, 0.5, 0.7 and 1% , highest brightness and lowest yellowness were shown at 0.5% sulvy-x. These values were 66.1% and 21.8%, respectively. The brightness of paper enhanced from 61.2% to 67.3% with increasing of sulvy-x charge from 0.4% up to 0.5% blended with constant value of 0.7% sodium silicate. But the brightness decreased at higher levels. Generally, pretreatment by DTPA prepared the paper with lower brightness and higher yellowness at two different states namely silicate-free and silicate-containing with sulvy-x. Pretreatment by DTPA at silicate-free state led to decrease of opacity but at silicate-containing state terminated to improve of opacity values. Increasing of bleaching time up to 120 minutes resulted in the paper with higher brightness, higher opacity and lower yellowness at silicate containing state with sulvy-x. At silicate-free state, increasing of bleaching time up to 120 minutes led to improve of opacity while brightness improved and yellowness reduced with increase in bleaching time to 90 minutes. Also, the brightness of paper decreased at higher times (120 minutes) and yellowness increased. In conclusion, achieved results from comparison of optical properties of paper produced from peroxide bleaching of hardwood CMP pulp indicated that we could produce the paper with desirable or even better optical properties by replacing of sulvy-x rather than sodium silicate compared to conventional peroxide bleaching.Iman AkbarpoorHossein ResaltiAli SolimaniRegional Information Center for Science and Technology (RICeST)articleSodium silicateorganic complexsulvy-xCMP PulpbrightnessyellownessOPACITYForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 26, Iss 3, Pp 411-428 (2011)
institution	DOAJ
collection	DOAJ
language	FA
topic	Sodium silicate organic complex sulvy-x CMP Pulp brightness yellowness OPACITY Forestry SD1-669.5
spellingShingle	Sodium silicate organic complex sulvy-x CMP Pulp brightness yellowness OPACITY Forestry SD1-669.5 Iman Akbarpoor Hossein Resalti Ali Solimani Investigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries
description	In this study, the effect of elimination and relative decrease of sodium silicate along with substituting the organic complex of sulvy-x was investigated on optical properties of CMP pulp bleached by hydrogen peroxide. The brightness of paper were increased to 66.8%, yellowness decreased to 22% and opacity decreased to 80% with increase in sodium silicate charge from 0.7% to 3%. Also, with complete elimination of sodium silicate and using of sulvy-x at different levels of 0.4, 0.5, 0.7 and 1% , highest brightness and lowest yellowness were shown at 0.5% sulvy-x. These values were 66.1% and 21.8%, respectively. The brightness of paper enhanced from 61.2% to 67.3% with increasing of sulvy-x charge from 0.4% up to 0.5% blended with constant value of 0.7% sodium silicate. But the brightness decreased at higher levels. Generally, pretreatment by DTPA prepared the paper with lower brightness and higher yellowness at two different states namely silicate-free and silicate-containing with sulvy-x. Pretreatment by DTPA at silicate-free state led to decrease of opacity but at silicate-containing state terminated to improve of opacity values. Increasing of bleaching time up to 120 minutes resulted in the paper with higher brightness, higher opacity and lower yellowness at silicate containing state with sulvy-x. At silicate-free state, increasing of bleaching time up to 120 minutes led to improve of opacity while brightness improved and yellowness reduced with increase in bleaching time to 90 minutes. Also, the brightness of paper decreased at higher times (120 minutes) and yellowness increased. In conclusion, achieved results from comparison of optical properties of paper produced from peroxide bleaching of hardwood CMP pulp indicated that we could produce the paper with desirable or even better optical properties by replacing of sulvy-x rather than sodium silicate compared to conventional peroxide bleaching.
format	article
author	Iman Akbarpoor Hossein Resalti Ali Solimani
author_facet	Iman Akbarpoor Hossein Resalti Ali Solimani
author_sort	Iman Akbarpoor
title	Investigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries
title_short	Investigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries
title_full	Investigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries
title_fullStr	Investigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries
title_full_unstemmed	Investigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries
title_sort	investigation of substituting the organic complex of sulvy-x rather than sodium silicate in cmp pulp bleaching of mazandaran wood and paper industries
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2011
url	https://doaj.org/article/8453652ad83b4666aee8e1a7c6f9e2ce
work_keys_str_mv	AT imanakbarpoor investigationofsubstitutingtheorganiccomplexofsulvyxratherthansodiumsilicateincmppulpbleachingofmazandaranwoodandpaperindustries AT hosseinresalti investigationofsubstitutingtheorganiccomplexofsulvyxratherthansodiumsilicateincmppulpbleachingofmazandaranwoodandpaperindustries AT alisolimani investigationofsubstitutingtheorganiccomplexofsulvyxratherthansodiumsilicateincmppulpbleachingofmazandaranwoodandpaperindustries
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Investigation of Substituting the organic complex of sulvy-x rather than sodium silicate in CMP pulp bleaching of Mazandaran wood and paper industries

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