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Response of Properties and Chemicals to Preparation Parameters in the Oxidation Processing of Refined Montan Wax

[Image: see text] Refined montan wax (RMW) is a lignite-based chemical product with wide application and high added value. However, research on its processing and performance is very limited. Currently, four parameters in the key preparation procedure for the oxidation bleaching of RMW, including th...

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Autores principales: Luo, Xian, Dai, Weifeng, Qin, Yi, Jiao, Shiyun, Li, Baocai, Zhang, Mi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8867476/
https://www.ncbi.nlm.nih.gov/pubmed/35224379
http://dx.doi.org/10.1021/acsomega.1c06650
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author Luo, Xian
Dai, Weifeng
Qin, Yi
Jiao, Shiyun
Li, Baocai
Zhang, Mi
author_facet Luo, Xian
Dai, Weifeng
Qin, Yi
Jiao, Shiyun
Li, Baocai
Zhang, Mi
author_sort Luo, Xian
collection PubMed
description [Image: see text] Refined montan wax (RMW) is a lignite-based chemical product with wide application and high added value. However, research on its processing and performance is very limited. Currently, four parameters in the key preparation procedure for the oxidation bleaching of RMW, including the concentration of two oxidants (H(2)SO(4) (P1) and CrO(3) (P2)), oxidation time (P3), and the mass ratio of CrO(3) used in two oxidation steps (P4), were systematically evaluated in regard to their impact on the properties and chemistry of RMW. The results showed that the four tested parameters visibly affected RMW, and each parameter had a different impact on the properties of RMW by range analysis, of which P1 showed a greater influence on its acid value; P2 influenced its friability, specific surface area, and aperture; P3 affected its color, initial melting point, and saponification value; and P4 had a higher impact on its final melting point, melting range, and hardness. Gas chromatography with flame ionization detection–mass spectrometry analysis revealed that the compounds found in RMW samples (RMWs) under different oxidation conditions differed significantly, with major differences in the content and amount of these components. Among the compounds in RMWs, 16 different compounds (variable importance of projection > 1) were found by the orthogonal projections to latent structures discriminant analysis method, nine of which have a strong relationship to the different performances of RMWs. This work provided a basis for the development of performance-oriented preparation processing technology for RMW.
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spelling pubmed-88674762022-02-25 Response of Properties and Chemicals to Preparation Parameters in the Oxidation Processing of Refined Montan Wax Luo, Xian Dai, Weifeng Qin, Yi Jiao, Shiyun Li, Baocai Zhang, Mi ACS Omega [Image: see text] Refined montan wax (RMW) is a lignite-based chemical product with wide application and high added value. However, research on its processing and performance is very limited. Currently, four parameters in the key preparation procedure for the oxidation bleaching of RMW, including the concentration of two oxidants (H(2)SO(4) (P1) and CrO(3) (P2)), oxidation time (P3), and the mass ratio of CrO(3) used in two oxidation steps (P4), were systematically evaluated in regard to their impact on the properties and chemistry of RMW. The results showed that the four tested parameters visibly affected RMW, and each parameter had a different impact on the properties of RMW by range analysis, of which P1 showed a greater influence on its acid value; P2 influenced its friability, specific surface area, and aperture; P3 affected its color, initial melting point, and saponification value; and P4 had a higher impact on its final melting point, melting range, and hardness. Gas chromatography with flame ionization detection–mass spectrometry analysis revealed that the compounds found in RMW samples (RMWs) under different oxidation conditions differed significantly, with major differences in the content and amount of these components. Among the compounds in RMWs, 16 different compounds (variable importance of projection > 1) were found by the orthogonal projections to latent structures discriminant analysis method, nine of which have a strong relationship to the different performances of RMWs. This work provided a basis for the development of performance-oriented preparation processing technology for RMW. American Chemical Society 2022-02-08 /pmc/articles/PMC8867476/ /pubmed/35224379 http://dx.doi.org/10.1021/acsomega.1c06650 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Luo, Xian
Dai, Weifeng
Qin, Yi
Jiao, Shiyun
Li, Baocai
Zhang, Mi
Response of Properties and Chemicals to Preparation Parameters in the Oxidation Processing of Refined Montan Wax
title Response of Properties and Chemicals to Preparation Parameters in the Oxidation Processing of Refined Montan Wax
title_full Response of Properties and Chemicals to Preparation Parameters in the Oxidation Processing of Refined Montan Wax
title_fullStr Response of Properties and Chemicals to Preparation Parameters in the Oxidation Processing of Refined Montan Wax
title_full_unstemmed Response of Properties and Chemicals to Preparation Parameters in the Oxidation Processing of Refined Montan Wax
title_short Response of Properties and Chemicals to Preparation Parameters in the Oxidation Processing of Refined Montan Wax
title_sort response of properties and chemicals to preparation parameters in the oxidation processing of refined montan wax
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8867476/
https://www.ncbi.nlm.nih.gov/pubmed/35224379
http://dx.doi.org/10.1021/acsomega.1c06650
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