The Utilisation of a Certain Waste Oxide of Iron in the Manufacture of Paints and Pigments, and for other purposes.
Year: 1892

page_text: Date of Application, 14th Nov., 1892
Complete Specification Left, 8th Aug., 1893-Accepted, 9th Sept.. 1893
PROVISIONAL SPECIFICATION.
The Utilisation of a Certain Waste Oxide of Iron in the Manufacture
of Paints and Pigments, and for other purposes.
THOMAS HARRIS, Chemical Merchant, 44 High Street, Runcorn, Cheshire and
HOWARD CURTIS SACRÉ, Chemical Manufacturer, 5 Eccles Old Road, Pendleton,
Manchester, do hereby declare the nature of this invention to be as follows :-
:-
In the manufacture of chloride of zinc it is necessary for most purposes to purify
it from the iron which is generally contained in the crude product. This is in
most cases effected by the precipitation of the iron in the form chiefly of ferric
hydrate, which is removed by subsidence or filtration.
In our invention we utilize the waste ferric hydrate by the production from it
of a material suitable for use in the manufacture of paint, as a pigment generally,
for use in the manufacture of india rubber, for polishing glass and metals, and for
other similar purposes.
We effect our object in the following manner. The waste ferric hydrate mud
separated by subsidence or filtration or by other suitable means, is washed with
water until free from soluble matter. The purified ferric hydrate is then by any
well-known process sufficiently freed from the water to be transferred to a drying
bed, where the remaining water is driven off. The dried material is then submitted
to heat in a suitable furnace or retort, in which it is calcined to a red oxide of
iron. This oxide is then by grinding, levigation, sifting, or other suitable means
brought into a suitable condition to be used for the purposes hereinbefore
enumerated.
Dated this Twelfth day of November 1892.
HOWARD C. SACRÉ.
THOMAS HARRIS.
COMPLETE SPECIFICATION.
The Utilisation of a Certain Waste Oxide of Iron in the Manufacture
of Paints and Pigments, and for other purposes.
THOMAS HARRIS of 44 High Street Runcorn, Chemical Manufacturer, and
HOWARD CURTIS SACRÉ of 5 Eccles Old Road, Pendleton, Manchester, Chemical
Manufacturer, 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 :-
In the manufacture of chloride of zinc it is necessary for most purposes to purify
it from the iron which is generally contained in the crude product. This is in most
cases effected by the precipitation of the iron in the form chiefly of ferric hydrate
which is removed by subsidence or filtration.
In our invention we utilise the waste ferric hydrate by the production from it
of a material suitable for use in the manufacture of paint and as a pigment generally,
and for use in the manufacture of india rubber and for polishing glass and metals
and for other similar purposes.
We effect our object in the following manner.-The waste ferric hydrate mud
separated by subsidence or filtration or by other suitable means is washed with
water to remove any soluble matter.
The purified ferric hydrate is then by any well known means sufficiently freed
from water to enable it to be transferred to a drying bed where the remaining
moisture is driven off.

page_text: The dried material is then submitted to heat in a suitable furnace or retort in
which it is calcined to a red oxide of iron. This oxide of iron is then by grinding,
levigation, sifting or other suitable means brought into a condition to be used for
the purposes herein before enumerated.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is.
The manufacture from the waste oxide of iron or ferric hydrate resulting from
the manufacture of chloride of zinc of a material suitable for use in the manu-
facture of paint, as a pigment generally, or for use in the manufacture of india
rubber, or for the polishing of glass or metals or for other similar purposes,
substantially as hereinbefore described.
Dated this Third day of August 1893.
THOMAS HARRIS.
HOWARD C SACRÉ.