Catalyst-assisted oxidative cellulose degradation in an alkaline medium

Kuptsan, N. A.; Makarova, T. P.; Meos, Andres

doi:10.1007/bf00542955

Cited by 1 publication

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“…preripening of the alkali cellulose and optimization of MWD using catalysts without preliminary activation of the cellulose [47]; incorporation of effective SF in the viscose, which disintegrate and disaggregate the gel particles in the viscose (this was mentioned above) and decrease foaming in degassing; this improves the quality of the viscose (decreases the gel particle content) and increases fibre-spinning stability;…”

Section: America Western Europamentioning

confidence: 98%

Ways of developing chemical fibres based on cellulose: Viscose fibres and their prospects. Part 1. Development of viscose fibre technology. Alternative hydrated cellulose fibre technology

Perepelkin

2008

Fibre Chem

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The noted Russian scientist, Professor Zakhar Aleksandrovich Rogovin, coined the slogan: Lets make cellulose better than it was created by Nature. The history of the evolution of chemical fibres shows that his prediction is being successfully realized, as the increase in production of viscose fibres and the solution of long-standing problems of recycling and detoxifying emissions indicate. New kinds of viscose staple fibres have been created: cotton-like (modal), antimicrobial, difficultly combustible, and many others.The chemical aspects and basic physicochemical characteristics of viscose fibre production were established a relatively long time ago. However, the technologies and equipment described in many monographs and review articles [1-7] have aged significantly, while the problems of recycling chemicals and scrubbing emissions, especially gaseous emissions, have not been examined in sufficient depth. In addition, there were almost no publications on viscose fibres during restructuring of the economy in our country. However, life continues, and much that is new has appeared in the viscose production sector and requires analysis and generalization.The constant increase in production is the best criterion of the development of viscose fibre production. Beginning in 2001, the production rate increased significantly. The annual increase in production of viscose fibres of 7-11% [8-13] is greater than the rate of increase in the production of most staple fibres with a simultaneous decrease in production of viscose yarns.Beginning with the last quarter of the 20th century, no comprehensive analysis of the technologies and other factors that determine the state of viscose fibre production has been published in the Russian literature. As a result, an mistaken opinion has arisen concerning the poor prospects for viscose production due to the development of synthetic fibres and the advent of Lyocell fibres.* The Russian literature is significantly lagging behind the real development of modern viscose technology. However, many new technical solutions have appeared in this sector, and new equipment and new solutions to problems of recycling chemical and treating emissions have been developed.I have had the occasion to work on viscose production technology, mastering and developing new equipment, treating wastewaters and gaseous emissions, becoming familiar with the operation of a number of the leading world enterprises and companies in viscose production, as well as participating in international conferences on the development of viscose technology, equipment, and treatment of emissions. My accumulated experience combined with the information obtained by the leading companies in different countries allowed analyzing the current state and ways of developing viscose technology presented in the present analytical review.

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Section: America Western Europamentioning

confidence: 98%

Ways of developing chemical fibres based on cellulose: Viscose fibres and their prospects. Part 1. Development of viscose fibre technology. Alternative hydrated cellulose fibre technology

Perepelkin

2008

Fibre Chem

View full text Add to dashboard Cite

show abstract

Catalyst-assisted oxidative cellulose degradation in an alkaline medium

Cited by 1 publication

References 3 publications

Ways of developing chemical fibres based on cellulose: Viscose fibres and their prospects. Part 1. Development of viscose fibre technology. Alternative hydrated cellulose fibre technology

Ways of developing chemical fibres based on cellulose: Viscose fibres and their prospects. Part 1. Development of viscose fibre technology. Alternative hydrated cellulose fibre technology

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