Improvements in or relating to the Manufacture of Lactose or Sugar of Milk.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to the Manufacture of Lactose or Sugar
of Milk.
I, HUBERT HIGGINS, of 4, Trinity Street, Cambridge, in the County of Cam-
bridge, Surgeon, do hereby declare the nature of this invention to be as follows:-
This invention relates to the utilization of the waste product, resulting from
the manufacture of caseinogen by precipitation from separated milk by means
of an acid, by treating the same so as to obtain therefrom lactose or sugar of milk.
After the caseinogen has been precipitated from the separated milk by hydro-
chloric or other suitable acid, the solid protein is separated from. the fluid residue,
either by filtration or simply by drawing off the supernatant liquid.
In order to neutralize the acid used for the precipitation of the caseinogen
calcium carbonate or common chalk is added to this liquid residue, which is then
treated in the ordinary well known methods for the production of lactose.
The resultant salt, which in the case of the use of hydrochloric acid for precipi-
tation, and calcium carbonate for neutralization. would be calcium chloride, being
exceedingly soluble in water, is removed from the lactose by washing the latter
with water, subsequent to its concentration to a solid by evaporative processes.
Instead of calcium carbonate any other suitable substance which will combine
to form a soluble salt with the acid, used for precipitation, may be employed.
Dated this 16th day of October 1897.
BOULT & WADE,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to the Manufacture of Lactose or Sugar
of Milk.
I, HUBERT HIGGINS, of 4, Trinity Street, Cambridge, in the County of Cam-
bridge, Surgeon, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention relates to the utilization of the waste product, resulting from
the manufacture of caseinogen by precipitation from separated milk by means
of an acid, by treading the same so as to obtain therefrom lactose or sugar of milk.
After the caseinogen has been precipitated from the separated milk by hydro-

page_text: chloric or other suitable acid, the solid protein is separated from the fluid residue,
either by filtration or simply by drawing off the supernatant liquid.
In order to neutralize the acid used for the precipitation of the caseinogen
calcium carbonate or common chalk is added to this liquid residue, which is then
treated in the ordinary well known methods for the production of Inctose.
The resultant salt, which in the case of the use of hydrochloric acid for precipi-
tution, and calcium carbonate for neutralization, would be calcium chloride, being
exceedingly soluble in water, is removed from the lactose by washing the latter
with water, subsequent to its concentration to a solid by crystallizing or evaporn-
tive processes.
Instead of calcium carbonate any other suitable substance which will combine
to form a soluble salt with the acid, used for precipitation, may be employed.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
In the manufacture of lactose treating and utilising the waste liquid resulting
from the precipitation of cascinogen by acids from separated milk substantially
as described.
Dated this 16th day of July 1898.
BOULT & WADE,
Agents for the Applicant.