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| Transformation and Upgrading of Modern Large-scale Chemical Pulp Mills: From Pulp for Papermaking to Diversified High-value Products |
| Received:November 10, 2025 Revised:December 12, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.02.001 |
| Key Words:chemical pulp dissolving pulp special cellulose-based materials high-value utilization |
| Fund Project:国家自然科学基金项目（32071715）；天津市科技重大专项与工程项目（25ZXZSSS00730， 25ZXZSSS00800）。 |
| Author Name | Affiliation | Postcode | | LIU Wei* | National Key Lab of Bio-based Fiber Materials, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | LIU Dongye | National Key Lab of Bio-based Fiber Materials, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | NING Hengli | National Key Lab of Bio-based Fiber Materials, Tianjin University of Science and Technology, Tianjin, 300457 | 300457 | | ZOU Xuejun | Shandong Huatai Paper Industry Co., Ltd., Dongying, Shandong Province, 257335 | 257335 | | LIU Yanshao | Shandong Huatai Paper Industry Co., Ltd., Dongying, Shandong Province, 257335 | 257335 | | ZHANG Fengshan* | Shandong Huatai Paper Industry Co., Ltd., Dongying, Shandong Province, 257335 | 257335 |
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| Abstract:In response to the slowdown in growth, intensified competition, and environmental pressure in the papermaking industry, modern large-scale chemical pulp mills are expanding from traditional pulp production for papermaking to higher-value cellulose products. Currently, most high-value cellulose products rely on imports from abroad and there is an urgent need for domestic production, making the necessity of the industry’s expansion towards higher-value cellulose products particularly prominent. This article systematically reviewed the four key paths to achieving this transformation: Develop high-purity dissolving pulp as raw materials for textiles and chemicals, and expand its emerging applications in energy, medical care, and other fields; Develop specialty cellulose that maintain fiber structure (such as fluff pulp and filter materials) to replace petrochemical products; Develop micro/nano cellulose with excellent performance; Utilize the by-products from pulping to produce bio-based materials. The production technology and application status of these key products such as dissolving pulp and special cellulose-based materials were analyzed. The significance of transformation was pointed out, and the future industrial upgrading achieved through green technology adoption and product innovation was described. |
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