The Hawaiian gazette. [volume] (Honolulu [Oahu, Hawaii]) 1865-1918, 1916-12-08

able for use on local plantations on
large scale.
A sample Of sugar recovered from
"fnal molasses" was shown to the
members Of the association yesterday.
The result of the final test on No.
molasses was received in the mail by
Mr.. Williams only yesterday. These
! figures and his report, Just completed,
were accepted by the association and
! ordered printed as part of the report
of the committee on the manufacture
of sugar and the utilization of by
products. r." -. -. T..
Mr.. Williams report to the associa.
ton, dated December 4, 1916, and head
ed "A new process for the recovery of
sucrose from so-called final mOlasses, ="
follows:
"During the year 1914 it was dis
covered that when final molasses of
from thirty to thirty.two per cont su-
crosse and thirty to thirty-seven per
cent purity was boiled to complete or
almost complete absence of water, the
sucrose contained therein crystalhzed
out in very small, but distinctly form
ed and truly shaped grain. This being
contrary to the generally accepted opin-
ion of this time, several tests were car
RED out on molasses of this grade from
different plantations to determine
whether this phenomenon was of gene
raj application to all final molasses in
this country, and the results of these
tests lead to the belief that it is a cor
rect statement to say, that the sucrose
in all final mOlasses, such as produced
in this Territory, will crystalline out in
a grain that is visible to the unaided
eye If the said molasses is evaporated
Ito a density of, say, ninety nine per
cent brix, at ordinary temperatures.
Recovery q Small Grains
"This point having been determined,
a great deal of work was done to as
certain whether or not these small
grains SO produced in the very dense
final molasses could be recovered by
mechanical means in such quantity and
at such cost as would render a process
for the recovery of this sugar (Which
now goes of in the final molasses) a
commercial success.
i 'tThe first experiments were made to
I determine If a separation of the crys
tails of sucrose so formed in the said
molasses could be effected. These ex
perimen ts were carried out on very
small scale, but the results were en-
couraging enough to warrant further
work in this direction on larger scale
| Thereafter, in the summer of 1915
an experiment on a practical scale
using thirtyinch high.speed centrifu
gal having a solid basket and operat
ing at very high speed of revolutions
was carried out, and this experiment
proved beyond a doubt that the very
dense and practically solid molasses
containing crystallized .sucrose could be
separated into two parts, one contain
ing a major portion of glucose, gums
etc, and a minor portion of sucrose
while the other contained a major por
ton of sucrose with a minor portion OF
glucose, gums, etc.
'"This experiment showed that Ovel
fQTty'fve per cent of the sncrose pres
ont iu the original parcel of final mo
assesNexperimented on, and which haC
a purity of about forty per cent, wal
, recovered in the form of a massecuit,
having polarization of fifty. per cent
and purity of tifty-three per cent.
! Conversion To Market Sugar
"The possibility of dcvisipg mechan
ical ,meaps. whereby the crystallizet
sucrOse could be separated from mag
ma of glucose. gums, etc, in which il
existed after having been demonstrat
ed, il was then decided TO carry the in
vpstigation further ia to determine
whether or not, after the recovery OF
the suerose had been secured, as above
described. II could be converted into Q
, | mn = II offs bIa sn0ar IN this end mr.
rangements were made with the Laupa
hoehoe Sugar Company, following
which. during the 1916 crop, q quantity
of final molasses was boiled to a prac