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US 2023/0159666 A1Published application
Method for dissolving starch
AssigneeKemira Oyj
InventorsAsko KARPPI, Perttu HEISKA, Mika SUVANTO, Matti HIETANIEMI
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Abstract
The present invention relates to a method and an arrangement for dissolving starch. Specifically, the present invention relates to a method for dissolving starch by introducing mechanical force to at least partially gelatinized agueous starch.
Claims16
Method for dissolving starch comprising:
- a) providing a feed (Feed-1) of an aqueous starch slurry having a temperature at least 5° C., preferably at least 10° C. below gelatinization temperature (on-set) of the starch;
- and
- b) bringing said feed (Feed-1) together with an aqueous feed (Feed-2) having a temperature of at least 60° C. to form a mixed feed (Feed-3);
- and
- c) subjecting said mixed feed (Feed-3) to dispergation to adjust the viscosity of said mixed feed (Feed-3).
2 more elements
An arrangement for dissolving starch comprising
- a conduit for feeding an aqueous starch slurry (Feed-1) to a conduit for mixed feed
- a conduit for feeding an aqueous feed having an elevated temperature (Feed-2) to the conduit for mixed feed;
- the conduit for mixed feed for connecting the conduit for aqueous starch slurry and the conduit for aqueous feed and a high shear dispergator,
- the high shear dispergator for adjusting the viscosity of the gelatinized starch;
- and
- a conduit for circulating the dispersed feed back to the dispergator or a dissolution tank or recovering the dispersed starch feed,
- wherein the length of the conduit for a mixed feed is adapted provide a sufficient gelatinization time for the starch in mixed feed (feed-3).
4 more elements
(canceled)
Dependencies are inferred from the claim text.