Pulp-and Paper-Making Potential of Peanut Hull Waste in Blends with Softwood Pulp


  • Wolfgang G. Glasser
  • Robert H. Slupski
  • J. Peter Clark


Agricultural residues, kraft, nonwood fibers, paper tests, soda


The use of peanut hulls as a raw material source for the manufacture of cellulose fiber products was evaluated by abbreviated kraft and soda pulping processes. Several types of experimental paper products were made from the unbleached and partially bleached pulps. Breaking lengths and tear factors were determined for handsheets made with peanut hull pulp alone and with mixtures of peanut hull and softwood pulp. Some hand-sheets blended from peanut hull and wood fibers were stronger than those made from pure wood pulp. In view of the results obtained, it appears feasible to employ peanut hull waste to extend the fiber raw material basis of pulping processes without sacrificing paper quality.


Browning, B. L. 1963. The composition and chemical reactions of wood. Page 66 in B. L. Browning, ed. The chemistry of wood. Interscience Publishers, New York.nChittenden, A. E., and E. R. Palmer. 1964. The production of particle board from groundnut shells, Board Practice 7(8): 183-187nChittenden, A. E., and E. R. Palmer. 1965. Particle board from groundnut shells. Board Practice 8(3):75-82.nGovil, R. S. 1960. Chemical pulp from groundnut shells. Tappi 43(6):215A-216A.nInstitute of Paper Chemistry. 1970. Pulping of bagasse and other papermaking fibers. In-stitute of Paper Chemistry, Appleton, Wisconsin.nJain, N. C., R. C. Gupta, S. C. Bajaj, and D. D. Singh. 1964. Utilization of groundnut shells. Ind. Pulp Paper 18(8):477-480.nLai, Y. Z., and K. V. Sarkanen. 1971. Isolation and structural studies. Pages 165-230 in K. V. Sarkanen and C. H. Ludwig, eds. Lignins—occurrence, formation, structure, and reactions. Wiley Interscience, New York.nLynch, D. F. J., and M. J. Goss. 1930. Peanut-hull cellulose. Ind. Eng. Chem. 22(8):903-907.nMarton, J. 1971. Reactions in alkaline pulping. Pages 639-689 in K. V. Sarkanen and C. H. Ludwig, eds. Lignins—occurrence, formation, structure, and reactions. Wiley Interscience, New York.nMills, E. C. (Alscope Ltd.). 1969. Process for making pulp by impregnating cellulosic materials with ammonium hydroxide and nitric acid. U.S. Pat. 3,461,028.nMills, E. C. (Alscope Ltd.). 1970. Process for making pulp. Can. Pat. 854,073.nRydholm, S. A. 1965. Pulping processes. Wiley Interscience, New York, pp. 677-714.n






Research Contributions