IMPROVEMENTS IN THE PURIFICATION AND TREATMENT OF SACCHARATE OF LIME, AND IN THE APPLICATION OF THE PRODUCTS RESULTING THEREFROM.
Year: 1877

page_text: LETTERS PATENT to John Henry Johnson, of 47, Lincoln's Inn Fields, in the
County of Middlesex, Gentleman, for the Invention of "IMPROVEMENTS IN
THE PURIFICATION AND TREATMENT OF SACCHARATE OF LIME, AND IN THE
APPLICATION OF THE PRODUCTS RESULTING THEREFROM.'
" A communication
from abroad by Doctor Augustus Seyferth, of Brunswick, in the Empire of
Gormany.
aled the 31st May 1878, and dated the 8th December 1877.
PROVISIONAL SPECIFICATION left by the said John Henry Johnson at the
Office of the Commissioners of Patents on the 8th December 1877
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN THE PURIFICATION AND TREATMENT OF SACCHA-
RATE OF LIME, AND IN THE APPLICATION OF THE PRODUCTS RESULTING THEREFROM."
A communication from abroad by Doctor Augustus Seyferth, of Brunswick, in the
Empire of Germany.
The first part of this Invention consists in the purification, by means of alcohol,
of saccharate of lime (produced by any process, but preferably by that described in
the Provisional Specification this day filed by me of an Invention of "Improve-
ments in the Production of Saccharate of Lime," communicated to me by the said
Doctor Augustus Seyferth).
In carrying out this part of the Invention the saccharate of lime is broken up
into moderately sized fragments and placed in a vessel, into which alcohol, or a
mixture of alcohol and water, is afterwards introduced. This alcohol is allowed to
slowly permeate the mass, and fresh alcohol is from time to time supplied until
nearly all the salts and a large portion of the foreign organic matters have been
removed. The purified saccharate of lime is then dissolved by the action of steam
and any alcohol it may contain collected by distillation. The alcohol which has
served for the first washing of one portion of saccharate of lime is used to wash a
fresh quantity, and so on, until it has become saturated with impurities, when it is
submitted to distillation, and the original alcohol is thus recovered.

page_text: The second part of this Invention relates to certain applications of the purified
saccharate of lime thus obtained.
In carrying out this part of the Invention the saccharate of lime is dissolved in
water or by the action of steam, as before mentioned, and carbonic acid gas is passed
through the solution until the lime is precipitated in the form of carbonate of lime, 5
the sugar being set free. This solution of sugar is either concentrated to obtain a
crop of sugar therefrom, or employed to dissolve a further portion of raw sugar for
the ordinary operations of the refinery. This solution of sugar may also be used
for brewing purposes or for the manufacture of oxalic acid
With reference to the salts and other refuse matters left after distilling the
alcohol, this refuse may be employed as a manure
Under the term of alcohol, as used in this my Provisional Specification, I include
both methyl alcohol and ordinary alcoliol, or similar bodies or mixtures of the
same.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by 1
the said John Henry Johnson in the Great Seal Patent Office on the 7th
June 1878.
"
JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex,
Gentleman. IMPROVEMENTS IN THE PURIFICATION AND TREATMENT OF SACCHA-
RATE OF LIME, AND IN THE APPLICATION OF THE PRODUCTS RESULTING THEREFROM." 2
A communication from abroad by Doctor Augustus Leyferth, of Brunswick, in the
Empire of Germany.
The first part of the said Invention consists in the purification, by means of
alcohol, of saccharate of lime (produced by any process), but preferably by that
described in the Specification to Letters Patent granted to me, dated the Eighth 2
December, One thousand eight hundred and seventy-seven, No. 4671, for "Improve-
ments in the Production of Saccharate of Lime," communicated to me by the said
Dr. Augustus Leyferth.
In carrying out this part of the present Invention the saccharate of lime in a
solid form is broken up into moderately sized fragments and placed in a vessel, into
which alcohol, or a mixture of alcohol and of water, in such proportions as to effect
the solution of the salts it is desired to remove, is afterwards introduced, or a
mixture of alcohol and water, as before mentioned. Alcohol, or a mixture of alcohol
and water, as before mentioned, is then allowed to permeate the mass, and frosh
alcohol is from time to time supplied until nearly all the salts soluble therein and
a large portion of the foreign organic matters have been removed. The purified
saccharate of lime is then dissolved by the action of steam, and any alcohol it may
contain collected by distillation. The alcohol which has served for the first washing
of one portion of saccharate of lime is used to wash a fresh quantity, and so on,

page_text: until it has become saturated with impurities, when it is submitted to distillation,
and the original alcohol is thus recovered.
The second part of this Invention relates to certain applications of the saccharine
solutions obtained from the purified saccharate of lime.
In carrying out this part of the Invention the saccharate of lime is dissolved in
water, or by the action of steam, as before mentioned, and carbonic acid gas is
passed through the solution until the lime is precipitated in the form of carbonate
of lime, the sugar being set free This solution of sugar is either concentrated to
obtain a crop of sugar therefrom, or employed to dissolve a further portion of raw
sugar for the ordinary operations of the refinery. This solution of sugar inay also
be used for brewing purposes or for the manufacture of oxalic acid.
With reference to the salts and other refuse matters left after distilling the
alcohol therefrom, this refuse may be employed as a manure.
Under the term of alcohol, as used in this Specification, I include both methyl
alcohol and ordinary alcohol, or similar bodies or mixtures of the same.
Having now described and particularly ascertained the nature of the said Inven-
tion, and the manner in which the same is or may be used or carried into effect, I
would observe in conclusion, that what I consider to be novel and original, and
therefore claim as the Invention secured to me by the herein-before in part recited
Letters Patent is,-
First. Submitting saccharate of lime in a solid form to the action of alcohol, or
of alcohol and water, or of methyl alcohol, or of similar bodies or mixtures of the
same, in order to separate certain salts and other impurities contained in the impure
saccharate.
Second. The application and use of the saccharine solutions obtained from the
purified saccharate of lime by means of carbonic acid, in the manner and for the
purposes herein-before mentioned.
In witness whereof, I, the said John Henry Johnson, have to this my
Specification set my hand and seal, the Seventh day of June, One thousand
eight hundred and seventy-eight.
J. HENRY JOHNSON. (L.S.)