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Thickening agents are
understood to be swelling agents which swell as they absorb
liquids and which finally change into viscous or colloid
solutions (gels, glutinous liquids, etc.).
Thickening agents are used in the manufacture of many
technical, cosmetic, pharmaceutical or dietary compounds
– for example, creams, cleaning agents, sizing, adhesives,
paints, puddings, and slim-line foods to name but a few.
Thickening agents can be broken down into:
a) Organic natural thickening agents such as agar-agar,
alginate, and guar flour, etc.
b) Organic modified natural substances such as carboxymethylcellulose,
etc.
c) Organic fully synthetic thickening agents such as vinyl
polymers, polyether, polyamides, etc.
d) Inorganic thickening agents such as polysilicic acid,
clay minerals, silica, and zeolite, etc. |
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The schematic below shows a processing system for dried alginate.
The feed moisture was measured at 1.1 % H2O. The feed size of
the cleaned alginate was < 1 mm. The end-product fineness
values demanded and achieved were 95 % < 40 µm and
95 % < 120 µm.
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1 = Feed rotary valve
2 = Zirkoplex classifier mill ZPS
3 = Automatic filter
4 = Rotary valve
5 = Fan
6 = Exhaust silencer
7 = Intake silencer
8 = Control cabinet
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The above-mentioned products, i.e. agar-agar, guar flour, carboxymethylcellulose,
polyether, silica and many other types of thickening agents
can all be processed with our fine impact mills, classifier
mills with or without downstream sieving machines. Simply send
us your detailed problem specification.
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