IMPROVEMENTS IN THE TREATMENT OF THE SOLID RESIDUES LEFT AFTER THE EXTRACTION OF STARCH FROM INDIAN CORN, AND IN THE OBTAINING OF VALUABLE PRODUCTS THEREFROM."
Year: 1879

page_text: LETTERS PATENT to Alexandre Manbré, the younger, of Liverpool, in the
County of Lancaster, for the Invention of "IMPROVEMENTS IN THE TREATMENT
OF THE SOLID RESIDUES LEFT AFTER THE EXTRACTION OF STARCH FROM
INDIAN CORN, AND IN THE OBTAINING OF VALUABLE PRODUCTS THEREFROM."
PROVISIONAL SPECIFICATION left by the said Alexandre Manbré at the
Office of the Commissioners of Patents on the 4th October 1879.
ALEXANDRE MANBRÉ, the younger, of Liverpool, in the County of Lancaster.
"IMPROVEMENTS IN THE TREATMENT OF THE SOLID RESIDUES LEFT AFTER THE
EXTRACTION OF STARCH FROM INDIAN CORN, AND IN THE OBTAINING OF VALUABLE
PRODUCTS THEREFROM."
After the extraction of the starch from Indian corn by the well known process of
soaking, grinding, levigating, separating, and washing, the sundry residues or
grains have been hitherto chiefly used for cattle and pig feeding. The subject
matter of my present application is their further treatment and the production
therefrom of spirit and oil.
I now proceed to describe the process of this further treatment. In a wooden
vat "diluter" provided with a mechanical agitator I put say 500 gallons of water,
40 to 45 bushels of the residues, and 2 to 4 per cent. of sulphuric acid. The whole
after being well mixed is introduced or run into an iron digester lined with either
lead or copper. The said digester is provided with an inlet for the diluted material,
a steam inlet and coil, an exhaust steam and discharge valve, a man-hole door, a
testing pipe, and a steam pressure gauge.
The steam coil is first covered with water, and by means of the steam injected
brought to boiling point. Successively the whole diluted material is gradually
introduced into the digester, taking care that a full ebulition of the whole is
constantly maintained until it has received its full charge. All the apertures of
the vessel are afterwards hermetically shut off and the steam kept on slowly, and
the pressure allowed to reach to from 6 to 7 atmospheres (90 to 100lbs. to the
square inch.) A sample is then taken and tested with iodine, or better still alcohol,

page_text: and the above pressure is maintained until it is ascertained that the glucosic-
saccharification is completed.
The pressure is then exhausted, the saccharified residues discharged, neutralized,
and filtered through perforated plate, bag filter, and filter presses, and the filtered
worts sent to vats for fermentation. The fermented worts are afterwards distilled
to obtain the spirit. The sediments left from the filtered worts are put into cloths,
steamed in a drum, and subjected to a powerful hydraulic press and the oil extracted.
I sometimes separate the germs from the residues before saccharification by means
of sieves.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alexandre Manbré in the Great Seal Patent Office on the 3rd April
1880.
ALEXANDRE MANBRÉ, the younger, of Liverpool, in the County of Lancaster.
"IMPROVEMENTS IN THE TREATMENT OF THE SOLID RESIDUES LEFT AFTER THE
EXTRACTION OF STARCH FROM INDIAN CORN, AND IN THE OBTAINING OF VALUABLE
PRODUCTS THEREFROM.'
"
After the extraction of the starch from Indian corn by the well known process of
soaking, grinding, levigating, separating, and washing, the sundry residues or
grains have been hitherto chiefly used for cattle and pig feeding. The subject
matter of my present application is their further treatment and the production
therefrom of spirit and oil.
I now proceed to describe the process of this further treatment. In a wooden
vat "diluter" provided with a mechanical agitator I put say five hundred gallons
of water, forty to forty five bushels of the residues, and two to four per cent. of
commercial sulphuric acid. The whole after being well mixed is introduced or run
into an iron digester lined with either lead or copper. The said digester is provided
with an inlet for the diluted material, a steam inlet and coil, an exhaust steam and
discharge valve, a man-hole door, a testing pipe, and a steam pressure gauge.
The steam coil is first covered with water, and by means of the steam injected
brought to boiling point. Successively the whole diluted material is gradually
introduced into the digester, taking care that a full ebullition of the whole is
constantly maintained until it has received its full charge. All the apertures of
the vessel are afterwards hermetically shut off and the steam kept on slowly, and
the pressure allowed to reach to from six to seven atmospheres (ninety to one
hundred pounds pressure to the square inch). A sample is then taken and tasted
with iodine, or better still alcohol, and the above pressure is maintained until it is
ascertained that there is no starch left and the glucosic-saccharification is completed.
The pressure is then exhausted, the saccharified residues discharged, neutralized,
and filtered through perforated plate, bag filter, or filter presses, and the filtered
worts sent to vats for fermentation. The fermented worts are afterwards distilled
to obtain the spirit.

page_text: The oleaginous portion or sediment separated from the worts as above described
by filtration or the germs, which I sometimes separate from the starch residues
before saccharification by means of sieves, are then treated for the extraction of the
oil contained therein. They are put into a cloth, steamed in a drum to mollify
them, and then subjected to a powerful hydraulic or other suitable pressure, whereby
the oil is extracted.
Having now described my Invention and the best mode known to me of carrying
it into effect, I wish it to be understood that what I believe to be new and desiro
to protect under the hereinbefore in part recited Letters Patent is,―
First. The mode of obtaining alcoholic spirit from the solid residues left after
the extraction of starch from Indian corn by boiling them in water and sulphuric
acid under pressure, and then separating, fermenting, and distilling the worts or
liquid portion substantially as described.
Second. The extraction of the oil from Indian corn residues by separating
glutinous matters from the germs or oleaginous portion by sieving or by glucosic
saccharification, and then subjecting said germs or unsaccharified residues to
hydraulic or other intense pressure, substantially as described.
In witness whereof, I, the said Alexandre Manbré, the younger, have hereunto
set my hand and seal, this First day of April, in the year of our Lord One
thousand eight hundred and eighty.
Witness,
W. P. THOMPSON,
Patent Agent,
6, Lord Street,
Liverpool,
& 323, High Holborn,
London, W.C.
A. MANBRÉ, JUN³. (L.S.)