Manufacture of Assimilable Iron-compounds.
Year: 1895

page_text: Date of Application, 8th Apr., 1895
Complete Specification Left, 8th Jan., 1896-Accepted, 8th Feb., 1896
I, OLIVER IMRAY of No. 28 Southampton Buildings, Chancery Lane in the
County of London, Chartered Patent Agent, do hereby declare the nature of this
invention to be as follows:-
My foreign correspondents have found that by suitable treatment of whey an
iron compound can be precipitated, the properties of which adapt it for use in
medicine.
In this compound the iron is contained in a peculiarly firm state of combination
as evidenced by its behavior towards different reagents.
The compound is soluble in alkalies, ammonia and alkaline carbonates, it reacts
after some time with ammonium sulphide forming sulphide of iron, and a solution
treated with ferrocyanide of potassium and acetic acid gives the Prussian blue-
reaction only after standing for a long time or on heating or on addition of a
mineral acid. The compound contains about 30 per cent. of iron. This compound
of iron is manufactured in the following manner.
Whey, previously freed from coagulable. albumen and milk-sugar is treated with
milk of lime or barium hydrate or with a calcium- or barium salt or with any other
salt giving a precipitate with phosphates, on neutralisation of the free acid with
alkali or carbonates, or the whey is treated in presence of sufficient alkaline earths
with substances which give to the solution a neutral reaction. Any excess of
alkaline earth in the filtrate is then removed by means of carbonic acid, sulphuric
acid or phosphoric acid, and finally the assimilable iron compound is precipitated
with ferric chloride or another iron salt under heat.
The product is filtered washed and dried; it is a heavy brown powder having
the characteristic properties above mentioned.
Dated this 8th day of April 1895.
ABEL & IMRAY,
Agents for the Applicant.
Manufacture of Assimilable Iron-compounds.
I, OLIVER IMRAY, of No. 28 Southampton Buildings, Chancery Lane, in the
County of London, Chartered Patent Agent, 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 :--
My foreign correspondents have found that by suitable treatment of whey an
iron compound can be precipitated, the properties of which adapt it for use in
médicine.
In this compound the iron is contained in a peculiarly firm state of combination
as evidenced by its behaviour towards different reagents.

page_text: The compound is soluble in alkalies, ammonia and alkaline carbonates, it reacts
after some time with ammonium sulphide forming sulphide of iron, and a solution
treated with ferro-cyanide of potassium and acetic acid gives the Prussian blue-
reaction only after standing for a long time or on heating or on addition of a mineral
acid. The compound contains about 30 per cent. of iron. This compound of iron
is manufactured in the following manner.
Whey, previously freed from coagulable albumen and milk-sugar is treated with
milk of lime or barium hydrate or with a calcium- or barium salt or with any
other salt giving a precipitate with phosphates, on neutralisation of the free acid
with alkali or carbonates, or the whey is treated in presence of sufficient alkaline
earths with substances which give to the solution a neutral reaction. Any excess
of alkaline earth in the filtrate is then removed by means of carbonic acid, sulphuric
acid or phosphoric acid, and finally the assimilable iron compound is precipitated
with ferric chloride or another iron salt under heat.
The product is filtered washed and dried; it is a heavy brown powder having the
characteristic properties above mentioned.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
:―
The herein described manufacture of an assimilable iron compound by treating
whey, after the removal of albumens, milk-sugar and phosphates, with ferric salts.
Dated this 8th day of January 1896.
ABEL & IMRAY,
Agents for the Applicant.