Value-added Utilization of Caustic Soda Lye from Cold Caustic Extraction Process in the Pulp Mill Academic Article

abstract

• Three approaches were examined for the reutilization of cold caustic extraction (CCE) lye. The term CCE lye refers here to the used NaOH solution with relatively high alkali content, which could be wasted if not reused properly. The results showed that CCE lye can be effectively applied in deinking, alkaline hydrogen peroxide bleaching, and oxygen delignification processes. The CCE lye improved the physical strength of the dried sheet of pulp, as the tensile index increased by 17.9% to 40.5%, the tear index increased by 2.9% to 22.2%, and the burst index increased by 10.5% to 41.0%. The results demonstrated the feasibility of integrating the CCE process of dissolving pulp production with regular pulping and bleaching processes.

authors

• Tian, Chao

published proceedings

• BIORESOURCES

author list (cited authors)

• Gong, C., Ni, J., Fan, S., Zhang, Y. u., Yang, B., Su, Z., & Tian, C.

citation count

• 0

complete list of authors

• Gong, Chen||Ni, Jian-Ping||Fan, Shu-Jie||Zhang, Yu||Yang, Bin||Su, Zhen-Hua||Tian, Chao

publication date

• January 2021

publisher

• BioResources  Publisher

published in

• BioResources  Journal

keywords

• Cce Lye
• Deinking
• Hydrogen Peroxide Bleaching
• Oxygen Delignification

Digital Object Identifier (DOI)

• 10.15376/biores.16.1.1854-1862

start page

• 1854

end page

• 1862

volume

• 16

issue

• 1

URL

• http://dx.doi.org/10.15376/biores.16.1.1854-1862