Invention of novel continuous nitropulper technology for producing commercial nitrocellulose of wood pulp sheet.

ABSTRACT: Nitrocellulose is one of the most important cellulose derivatives used in industry and commerce, produced from raw materials such as cotton linters, dissolving wood pulp, or pure/mixed cellulose pulp. This study aims to develop an efficient process for converting pulp into nitrocellulose while minimizing particle and dust formation, acid waste, fiber damage, and production bottlenecks during nitration and boiling stages. The research involved opening dense wood pulp sheets (88-90% purity) using a laboratory mixer and a pilot-scale nitropulper. Simultaneous nitration was conducted in a mixed acid solution (27% nitric acid, 65% sulfuric acid, 8% water) with varying acid-to-cellulose ratios (65:1 to 15:1) for 1 to 5 min. Pre-nitration was carried out for 4 min, followed by post-nitration (16-

SUBMITTER: Gashtroudkhani AK 

PROVIDER: S-EPMC12311026 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature