chemical pulping

chemical pulping

[′kem·i·kəl ′pəlp·iŋ]
(chemical engineering)
Separation of wood fiber for paper pulp by chemical treatment of wood chips to dissolve the lignin that cements the fibers together.
References in periodicals archive ?
Following the successful completion of the transaction, Metso Paper will be able to deliver all core processes for modern pulp mills, including chemical pulping lines, chemical recovery and power generation for pulp and paper production.
Unlike chemical pulping processes that require chemicals to break wood down into its constituent fibres, mechanical pulping is largely a matter of grinding up the wood into basic components.
With this process, 90% of the wood fiber is used, and it also delivers a marked improvement in efficiency over the chemical pulping process employed to make competitive traditional freesheet from kraft pulp.
Chemical pulping systems: amount of batch digesters, continuous digesters
Metso Paper's chemical pulping technology was selected by Celulose Nipo-Brasileira S.
based in Mason, Ohio, is a leading fiberline process equipment supplier that designs, manufactures, and services equipment used in paper recycling, chemical pulping, and paper machine approach-flow applications.
The chemical pulping process removes the degraded lignin, hemicellulose and other chemicals contained in the pulping solution.
The Pulp and Paper Group specializes in the design and global marketing of equipment and systems used in various stages of pulp and paper production, notably chemical pulping, pulp preparation and sheet formation and finishing.
This two-book set covers the chemical pulping process, from wood handling at the mill site through pulping and bleaching and pulp drying.
bond/67 gsm) sheet is produced by mechanically grinding wood into papermaking pulp instead of using the chemical pulping process traditional for producing digital business papers.
During chemical pulping, the kappa number was reduced by 22%-27% at the same alkali charge, or the alkali charge was reduced by 30 kg/ton of raw material, or the cooking time was reduced by up to 30%.

Full browser ?