The Hawaiian gazette., 1916-05-12
kOPKE CLAR|F|ER
=. SAvES3PER CENT
Two Years Run At Makee Mill
Gives This High
Average

The KOpke ClariGer Company has IS
sued leahet giving results obtained
at Makee Sugar ComPany's mill for
fourteen strikes up to April q this year
Seven Of these were clarified by the
kopkc process, one was partly and six
unclarifCd.
Molasses Qualification, as carried out
in this factory, is the result of NUN.
Der of laboratory experiments which
showed COnclusively that removal of
the inSoluble impurities had a very i'm.
portant ami advantageous influcAce on
the subsequent development Of sugar
erystalsy ahd leaving the molasses less
wise ous.
In order to determine the advantages
of centrifugal Qualification on the DIFF
ferent liquors containing mechanical
impurities, the machine was first used
tor tRe treatment of syrup, first and
second melted sugars. first and second
molasses, and the settling tank residue.
Reagents Are Helpful
These tests showed that the greatest
possible gain in increased recovery of
sugar resulted from the Qualification of
hrst mOlasses though it is apparent
that much benefit is derived when the
insoluble impurities are removed from
the syrup. More clarifying capacity
is necessary for syrup Qualification than
Tor the treatment of first m0lasses and
this additional capacity was not avail
able here
The benefit derived from molassos
Qualification is considerably affected bv
the use of suitable reagents. such as
urh fn nj
but most particularly by the tempcra-
ture involved. 1t appears to be diff.
cult for many to appreciate the i'm
Portance Of avoiding high temperatures
or m0lHsSes, but tests have proven con
clusiVcly that good results are abso-
lutely impossible, at least here, unless
comparatively low temperature is
maintained throughout.
Gains Are Large
The increase in recovery of sugar in
this factory due to mulasses clarified
ton is 1851.
Average gray, purity Of second or
crystalliser IpOlasses previous to the
adoption Of Qualification of first molass-
es was between 300 and 43.O. Average
Rrav. purity Icing now obtained is
342.
Recently the centrifugal clarfier was
shut down for about a week for rrpGirs,
During this period u careful check was
kept Of the strikes boiled from un
clarified first molasses and particular
pains were taken to get the best DOS
sible results in order to determine if
possible whether or not factors, other
than Qualification we're causing the
present low purity molasses.
Average gray. pur. of second mo-
lasses from strikes boiled from clari.
fed first molasses, 34.2
Average grav. pur. of second mo-
lasses Rfter Qualification was stopped,
all other operations remaining the
same, 40Sl.
Average grav. pur. of second molsss
es previous to the adoption of molasses
clH ification, Alb.
Results Are Sure
The increased recovery resulting from
this treatment was not strikingly ap-
parent when first introduced. For the
first month second molasses of about
800 gray. pur. was realized. For the
season l9i5 an av. gray. pur. of 1913
was OBTAINED for the entire year, and
thls year 1t VIII not average over $40
''u"PlVS VI lne InOlaSSeS resulting
from maSsecuite boiled from clarified
molasses have been analysed by no less
than six persons with practically no
variation in results Also in order TO
ensure in as practicable a manner as
possible the actual substantiation of
the recovery that should be indicated
by the low molasses purity cited, be-
fore the beginning of last season
.luIce scale was installed, which was
made from regular lotion platform
scale, and we find that on a basis of
actual weight we are able to keen n
very accurate record of the sucrose en-
tering the boiling house.
The scale is checked and corrected
regularly and the true sucroso is de.
trrmined in all mixed juice samples
which are taken from hole in the
pump plunger, assuring an even sam
pie. The tons sucrose is then caIculat.
ed for the actual weight and period
during which the sample was taken.
Following this system of sucrose ac
counting as compared with the sucrose
IN sugar and comparing the same with
the theoretical recovery, a difference Of
0 1891 was fOuud for last saoson