Process for obtaining pressed beet pulp with high dry-substance

Details Process for obtaining pressed beet pulp with high dry-substance Process for obtaining pressed beet pulp with high dry-substance

1980-02-19

1981-06-16

Marantz, Sidney

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

100 37, 100 73, 127 43, C13D 108, B30B 1300

Patent

active

042735904

ABSTRACT:
Process for obtaining beet pulp of high dry-solids content from a sugar extraction process by mechanically pressing the pulp, mixing salts of polyvalent cations, an acid or both with the pressed pulp, further pressing the admixture and thermally drying the admixture. The salts of the polyvalent cations are preferably calcium chloride, aluminum chloride and ferric chloride and are added in an amount of from 0.5 to 10%, preferably from 1.5 to 4%, relative to the pulp dry-solids content. The liquid from the second pressing can be concentrated by evaporation and at least part can be recycled to produce the initial solution of the salts. The remainder of the concentrated liquid can be added to the pressed admixture before or after drying to further increase the dry-solids content.

REFERENCES:
patent: 2084229 (1937-06-01), Van Maanen
patent: 3195446 (1965-07-01), French
patent: 3455235 (1969-07-01), Koelsch
patent: 3477873 (1969-11-01), Koelsch
patent: 4212239 (1980-07-01), Fraula
patent: 4214947 (1980-07-01), Berger
J. F. T. Oldfield et al., La Sucrerie Belge, 98, 109-116 (1979).
"Beet-Sugar Technology", R. A. McGinnis, ed., 2nd Edition, Fig. 5-21 at end of book, Beet Sugar Development Foundation, Fort Collins, 1971.
J. F. T. Oldfield et al., International Sugar Journal, 157-162 (1977).
A. Carruthers et al., Int. Sugar Jour., 63, 241-243 (1961).
R. A. McGinnis, "Beet-Sugar Technology", 2nd Edition, 592-595, Beet Sugar Development Foundation, Fort Collins, 1971.

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