Bagasse Fractionation by the Soda Process
Doherty, Bill & Rainey, Thomas (2006) Bagasse Fractionation by the Soda Process. In Hogarth, D (Ed.) Proceedings of the Australian Society of Sugar Cane Technologists 2006, 2-5 May 2006, Australia, Queensland, Mackay.
The soda process was the first chemical pulping method and was patented in 1845. Soda pulping led to kraft pulping, which involves the combined use of sodium hydroxide and sodium sulfide. Today, kraft pulping dominates the chemical pulping industry. However, about 10% of the total chemical pulp produced in the world is made using non-wood material, such as bagasse and wheat straw. The soda process is the preferred method of chemical pulping of non-wood materials, because it is considered to be economically viable on a small scale and for bagasse is compatible with sugarcane processing. With recent developments, the soda process can be designed to produce minimal effluent discharge and the fouling of evaporators by silica precipitation.
The aim of this work is to produce bagasse fibres suitable for papermaking and allied applications and to produce sulfur-free lignin for use in specialty applications. A preliminary economic analysis of the soda process for producing commodity silica, lignin and pulp for papermaking is presented.
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|Item Type:||Conference Paper|
|Keywords:||Bagasse, Soda Pulping, Delignification|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > OTHER CHEMICAL SCIENCES (039900) > Industrial Chemistry (039903)|
|Divisions:||Current > Research Centres > Centre for Tropical Crops and Biocommodities|
|Copyright Owner:||Copyright 2006 Australian Society of Sugar Cane Technologists|
|Deposited On:||17 Jun 2009 15:20|
|Last Modified:||29 Jun 2012 04:52|
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