semichemical pulping

semichemical pulping

[¦sem·i′kem·ə·kəl ′pəlp·iŋ]
(chemical engineering)
A method of producing wood-fiber products in which the wood chips are merely softened by chemical treatment (neutral sodium sulfite solution), while the remainder of the pulping action is supplied by a disk attrition mill or by some similar mechanical device for separating the fibers.
References in periodicals archive ?
The FPL was influential in developing the semichemical pulping process as a higher yield offshoot for the kraft process in papermaking.
Two Technical Information Papers in the Sulfite and Semichemical Pulping subject category have been recommended for with-drawal, due to lack of use in the industry, by the Working Group reviewing these documents.
Three Technical Information Papers in the Sulfite and Semichemical Pulping subject category are being proposed for withdrawal, due to lack of interest expressed so far in reviewing and maintaining these documents.
57th Annual Appita Conference and Exhibition incorporating the TAPPI Sulfite and Semichemical Pulping Committee Annual Meeting will he at the Carlton Crest Hotel in Melbourne, Australia, on May 5-7, 2003.
More than half that amount is already maximized through high yield mechanical and semichemical pulping methods.