Sugar Liquors, Syrups, and Saccharine Juices.
Year: 1884

page_text: Sugar Liquors, Syrups, and Saccharine Juices.
[A communication from abroad by Fritz Kleemann, of Schoeningen, near
Braunschweig, in the Empire of Germany, Engineer:]
.
. I WALLACE FAIRWEATHER C.E. of 96 Buchanan Street, Glasgow, in the County
of Lanark, Fellow of the Institute of Patent Agents, do hereby declare the nature
of my said Invention for "IMPROVED MEANS OR PROCESS FOR FILTERING AND
DECOLORISING SUGAR LIQUORS, SYRUPS, AND SACCHARINE JUICES;" to be as
follows:
The operation of separating and removing from sugar liquors, syrups and
saccharine juices, the slimy or mucilaginous matters and impurities contained in
them, has hitherto been attended with considerable difficulty, and that of removing
the coloring matter from such liquids, has always involved the use of very
expensive decolorising agents. These operations I effect, according to my Invention,
in a simple, effective, and inexpensive manner, by using, as an absorbing medium,
or as a filtering medium, peat or the substance known as brown coal, tertiary
coal, or lignite, and employing a process of treatment which may be carried out in
either of two ways, as follows:-(1) I add to, or mix with the sugar liquor, syrup
or saccharine juice, before filtration, a suitable proportion of the brown coal or of
the peat, in a crushed, ground, broken, or pulverulent state, and then filter the
liquid in any of the well known ways, but preferably by the use of filter presses.
Or (2) I place a quantity of the broken or pulverulent brown coal or of the peat
in any suitable vessel, and cause the sugar liquor, syrup, or saccharine juice to pass
through the material within the vessel. In the first case the broken or pulverulent
material absorbs or retains the slimy or mucilaginous matters and other impurities
contained in the liquor, as well as a large proportion of the coloring matter; and
the purified liquor passes freely through the filter cloth or other filtering medium
employed. The second method is more particularly adapted for effecting the'
decolorisation of liquor which has previously been filtered, but it is also applicable
for effecting at one operation, both the separation of the slimy impurities, and the
removal of the coloring matter from the liquor.

page_text: The process of treatment by means of brown coal or of peat, has also the effect of
removing, from certain classes of sugar liquors, the offensive odour and unpalatable
taste they ordinarily possess.
The broken or pulverulent brown coal or peat employed in the process described
may be used separately or in combination, or in admixture with vegetable charcoal.
The brown coal or peat may also be employed in a coarsely broken state to effect
the decolorisation as above described, of liquors which have previously been
filtered, and be afterwards washed with water and more finely ground or crushed
and dried, and subsequently added to or mixed with unfiltered liquor to effect the
separation and removal of the slimy or mucilaginous and other impurities.
Deted this Twenty third dog of Tanu 1004

page_text: I, WALLACE FAIRWEATHER, C.E., of 96 Buchanan Street, Glasgow, in the County
of Lanark, Fellow of the Institute of Patent Agents, do hereby declare the nature
of my Invention for "IMPROVED MEANS OR PROCESS FOR FILTERING AND
DECOLORISING SUGAR LIQUORS, SYRUPS, AND SACCHARINE JUICES, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
The operation of separating and removing from sugar liquors, syrups, (and
saccharine juices, the slimy or mucilaginous matters and impurities contained in
them, has hitherto been attended with considerable difficulty, and that of removing
the coloring matter from such liquids, has always involved the use of very
expensive decolorising agents. These operations I effect, according to my Invention,
in a simple, effective, and inexpensive manner, by using, as an absorbing medium,
or as a filtering medium, peat or the substance known as brown coal, tertiary
coal, or lignite, and employing a process of treatment which may be carried out in
either of two ways as follows: -(1) I add to or mix with the sugar liquor, syrup,
or saccharine juice, before filtration, a suitable proportion of the brown coal or of
the peat, in a crushed, ground, broken, or pulverulent state, and then filter the
liquid in any of the well known ways, but preferably by the use of filter presses.
Or (2) I place a quantity of the broken or pulverulent brown coal or of the peat
in any suitable vessel, and cause the sugar liquor, syrup, or saccharine juice to pass
through the material within the vessel. In the first case, the broken or pulverulent
material absorbs or retains the slimy or mucilaginous matters and other impurities
contained in the liquor, as well as a large proportion of the coloring matter; and
the purified liquor passes freely through the filter cloth or other filtering medium
employed. The second method is more particularly adapted for effecting the
decolorisation of liquor which has previously been filtered, but it is also applicable
for effecting at one operation, both the separation of the slimy impurities and the
removal of the coloring matter from the liquor:
The process of treatment by means of brown coal or of peat, has also the effect of
removing from certain classes of sugar liquors, the offensive odour and unpalatable
taste they ordinarily possess.
The broken or pulverulent brown coal or peat employed in the process described
may be used separately, or in combination, or in admixture with vegetable charcoal.
The brown coal or peat may also be employed in a coarsely broken state to effect
the decolorisation, as above described, of liquors which have previously been
filtered, and be afterwards washed with water and more finely ground or crushed
and dried, and subsequently added to or mixed with unfiltered liquor to effect the
separation and removal of the slimy or mucilaginous and other impurities..
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is,-
.
First. The herein described means or process of treating sugar liquors, syrups,
and saccharine juices to facilitate filtration and decolorisation, said means or
process consisting in adding to or mixing with the liquor, a quantity of broken or
pulverulent brown coal or peat, (either separately or in combination, or in admixture
with vegetable charcoal) previous to passing the liquor through the usual filters,
filter beds, or filter presses, substantially as herein set forth.
Second. The herein described means or process of filtering and decolorising sugar
liquors, syrups and saccharine juices, which consists in passing the liquor through

page_text: a mass of broken pieces or lumps of brown coal or peat, (either separately or in
combination, or in admixture with vegetable charcoal) contained within any
suitable vessel.
Third. The herein described filtering and decolorising medium for treating sugar
liquors, syrups, and saccharine juices, said medium consisting of a mass of broken
or pulverulent brown coal or peat (either separately or in combination, or in
admixture with vegetable charcoal) contained within any suitable vessel,
substantially as herein set forth.