IMPROVEMENTS IN THE TREATMENT OF CERTAIN ZINC ORES' AND COMPOUNDS OF ZINC, AND IN THE MANUFACTURE OF ZINC AND OXIDE OF ZINC
Year: 1858

page_text: LETTERS PATENT to Astley Paston Price, of Margate, in the County of
Kent, Chemist, for the Invention of "IMPROVEMENTS IN THE TREATMENT OF
CERTAIN ZINC ORES' AND COMPOUNDS OF ZINC, AND IN THE MANUFACTURE OF
ZINC AND OXIDE OF ZINC."
Sealed the 18th June 1858, and dated the 16th April 1858.
PROVISIONAL SPECIFICATION left by the said Astley Paston Price
at the Office of the Commissioners of Patents, with his Petition, on
the 16th April 1858.
I, ASTLEY PASTON PRICE, of Margate; in the County of Kent, Chemist,,
do hereby declare the nature of my said Invention for "IMPROVEMENTS IN THE
TREATMENT OF CERTAIN ZINC ORES AND COMPOUNDS OF ZINC, AND IN THE MANU-,
PACTURE OF ZINC AND OXIDE OF ZINC," to be as follows:--
The improvements consist in mixing: certain ores of: zinc, calcined ores, or,
oxides or carbonates of zinc, or metallic zinc, in a state of division with bitu.
minous coal or carbonaceous matter, and bituminous coal or other bituminous
matter, such as pitch, tar, asphaltum or bitumen, or mixtures thereof, and
subjecting the same to the action of heat, either in a partially closed distillatory.
apparatus or in any suitable coking apparatus.
My improvements further consist in the admixture of suitable fluxes with
such-before-mentioned ores of zinc or calcined ores, or oxides or carbonates of.

page_text: the same, together with bituminous coal or with carbonaceous matter, and
bituminous coal or other bituminous matter, as aforesaid, and subjecting the
same to the action of heat in suitable distilling or coking apparatus.
The improvements further consist in the employment and treatment after a
carbonizing or coking process of either or both of the combinations described
in the first two heads of this Invention for the distillation of zinc, either in the
distilling pots or retorts, or in the distillatory apparatus usually employed, or
in any other suitable distilling apparatus, and for the smelting or distillation of
zine, either in a blast, cupola, or other suitable smelting or distilling furnaces,
for the purpose of extracting the zinc or oxide of zinc therefrom.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Astley Paston Price in the Great Seal Patent Office on
the 16th October 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ASTLEY
PASTON PRICE, of Margate, in the County of Kent, Chemist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixteenth day of April, in the year of our Lord One
thousand eight hundred and fifty-eight, in the twenty-first year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Astley Paston Price, Her special license that I, the said Astley Paston Price,
my executors, administrators, and assigns, or such others as I, the said
Astley Paston Price, my executors, administrators, or assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use, exer-
cise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
THE TREATMENT OF CERTAIN ZINC ORES AND COMPOUNDS OF ZINC, AND IN THE
MANUFACTURE OF ZINC AND OXIDE OF ZINC," upon the condition (amongst
others) that I, the said Astley Paston Price, by an instrument in writing
under my hand and seal, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Astley Paston Price, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the following
statement:-
My improvements in the manufacture of zinc have for their object the pre-
paration and treatment of the ores, or calcined or oxidised ores, or artificially
prepared or manufactured oxides of zinc, when occuring in a finely divided
condition, and especially of those oxides which result from zinc ores that have
been subjected to a process of calcination or oxidation, more especially such as
calcined or oxidized blendes, in order that zinc or oxide of zinc may be obtained
therefrom in a cupola, blast, or any similar furnace, such calcined or oxidised
ores or blendes when in the fine state of division to which it is desirable and
necessary to reduce them before calcination, in order to effect and ensure their
complete oxidation or calcination, being in that state unfit, or their use attended
with difficulty and inconvenience, when employed for treatment in such cupola,
blast, or similar furnace.
My improvements further relate to the preparation and treatment of calcined
or oxidised ores of zinc, or artificially prepared oxide of zinc, especially such
as those resulting from calcined or oxidised blendes, as before mentioned, in
manner herein-after described, and in their employment, when so treated and
prepared, in the distillatory apparatus usually employed for effecting the distil-
lation of zinc, or any apparatus applicable to such purpose. The calcined or
oxidised ores, or the artificially prepared oxides of zinc when intimately mixed
with carbonaceous or other matters, as herein-after described, being more
economically and advantageously employed in the manufacture and distillation
of zinc than when treated in the manner and by those processes now generally
adopted.
The above-mentioned ores in their natural state having been reduced to a
fine state of division, and having been subjected to a process of calcination or
oxidation, or artificially prepared oxides of zinc, or substances or products con-
taining artificially prepared oxides of zinc or metallic zinc, also in a fine state
of division, are then combined or mixed with bituminous coal or coking coal,
or with carbonaceous matter, and bituminous coal or other bituminous matter,
such as pitch, tar, asphalte, or bitumen, or mixtures thereof, or with any or all
of the before mentioned bituminous, tarry, or pitchy substances, and subjected
to the action of heat, either in a partially closed distillatory apparatus, or in
any suitable heating or coking apparatus, in order that a coke or a coked
material may be obtained.
My improvements further consist in the combining and mixing such before
mentioned calcined or oxidised ores of zinc, or artificially prepared oxides of
zinc, or substances or products before named, when in a state of division,

page_text: together with fluxes suitable or necessary to effect the fluxing of the residual
earthy and other matters contained in the calcined ores of zinc, or in the afore-
said artificially prepared oxides of zinc substances or products before
mentioned, with bituminous coal or other materials as aforesaid, which may be
necessary to form a coke or coked material, when such mixture or mixtures
shall have been subjected to a coking, heating, or distillatory process.
The method I prefer, when the before mentioned bituminous and other
matters are not in a fluid state, is to employ them in a state of division, and to
mix and incorporate the same with the calcined and oxidized ores of zinc, or
with the artificially prepared oxides of zinc substances or products before
mentioned, and either together with or without the suitable flux or fluxes
before mentioned, and to submit such mixture or mixtures either to a coking
or distillatory process in retorts or in suitable coking apparatus, in order that
a coke or coked material may be obtained.
When the before mentioned bituminous materials are employed in a fluid
state, they may be incorporated or mixed with the carbonaceous or other bitu-
minous matter, together with the calcined or oxidized ores, artificially prepared
oxides of zinc substances or products as before mentioned, when the same are
by preference in a heated condition, which will be found materially to facilitate
such admixture.
The proportions which I find in practice to answer are one part in bulk of
calcined or oxidized blendes or other calcined or oxidized ores of zinc, or the
aforesaid artificially prepared oxides of zinc substances, products, or fluxes
before mentioned, with two parts in bulk of bituminous coal, but these pro-
portions vary with the quality of the coal.
When carbonaceous matter and bituminous coal or bituminous or tarry or
pitchy matters are employed, then the proportions may be varied, according to
the several materials used, the object being that a coke or coked material may
be obtained capable of being advantageously employed for the purpose of
obtaining zinc or oxide of zinc by the several methods before mentioned, or by
methods similar thereto.
My improvements further consist in the employment and treatment of the
several cokes or coked materials obtained as herein-before described, eithe
alone or in conjunction with other fuel fluxes or adjuncts in a cupola, blast, o
other suitable smelting, reducing, or distilling furnaces, for the purpose o
obtaining metallic zinc or oxide of zinc therefrom, as is well understood.
My improvements further relate to the treatment and employment of th
before mentioned cokes or coked materials obtained as herein-before described
for the manufacture of zinc in the distilling pots or in the distillatory apparatu

page_text: now generally adopted, or capable of being applied to the distillation of zinc
therefrom:
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried
into effect, I hereby declare that what I consider to be novel or original, and
therefore claim as the Invention secured to me by the herein-before in part
recited Letters Patent, is, the treatment of calcined or oxidized ores of zinc,
and of artificially prepared oxides of zinc, and substances, and products con-
taining artificially prepared oxides of zinc, and metallic zinc, when in a state
of minute division, in the manner and for the purposes herein-before described.
In witness whereof, I, the said Astley Paston Price, have hereunto set
my hand and seal, this Sixteenth day of October, One thousand eight
hundred and fifty-eight.
ASTLEY PASTON PRICE. (L.S.)