Year: 1888

page_text: I, CAMILLE ALPHONSE FAURE, of 117 Waverley Place, in the City of New York,
United States of America, Gentleman, do hereby declare the nature of this invention
to be as follows :-
My invention is an improvement in the art of producing chloride of alumina. The
object of my invention is to improve the quality, reduce the expense and render the
manufacture upon a large commercial scale practicable, desirable and profitable.
I manufacture or produce the chloride by subjecting the oxygenated ores of
aluminium to a proper combining temperature; that is, about a red heat, bringing
them into direct contact with the flame of a furnace; I then cut off the flame and
access of air and introduce a gaseous mixture containing carbon and chlorine, I prefer
a gaseous mixture of petroleum or a similar hydrocarbon and hydrochloric acid gas.
There is thus produced chloride of alumina vapors which are immediately condensed
to the liquid state and conducted to an appropriate receptacle.
I am aware that heretofore it has been proposed to heat fragments of aluminous ores
and carbon mixed and thon pass over the heated matter a vapor containing chlorine
gas; this has been attempted both in retorts and in furnaces where the entire mass
was subjected to heat. I am also aware that it has been proposed to heat alumina in
a tube and to then pass over a mixture of hydrochloric gas and sulphide of carbon but
these methods all fall far short of a successful commercial process in that they are
uncertain, unreliable, expensive and necessarily confined to operations upon a small
experimental scale.

page_text: Improvements in the Method of Producing Aluminium Chloride.
I CAMILLE ALPHONSE FAURE of 117 Waverley Place in the City of New York
United States of America do heroby 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 Invention is an improvement in the art of producing chloride of alumina.
The object of my invention is to improve the quality, reduce the expense and render
the manufacture upon a large commercial scale practicable desirable and profitable.
I manufacture or produce the chloride by subjecting the oxygenated ores of
aluminium to a proper combining temperature that is, about a red heat bringing
thon into direct contact with the flame of a furnace. I then cut off the flame and
access of air and introduce a gaseous mixture containing carbon and chlorine I prefer
a gaseous mixture of petroleum or a similar hydrocarbon and hydrochloric acid gas.
There is thus produced chloride of alumina vapors which are immediately condensed
to the liquid state and conducted to an appropriate receptacle.
I am aware that heretofore it has been proposed to heat fragments of aluminous
ores and carbon mixed and then pass over the heated matter a vapor containing
chlorine gas, this has been attempted both in retorts and in furnaces where the entire
mass was subjected to heat. I am also aware that it has been proposed to heat
alumina in a tube and to then pass over a mixture of hydrochloric gas and sulphide
of carbon but these methods all fall far short of a successful commercial process
-in-that they are uncertain-unreliable expensive-and-necessarily confined-to-operations-
upon a small experimental scale.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed. 1 declare that what I
claim is :-
1. The process of manufacturing chloride of alumina which consists in heating an
ore containing aluminium in direct contact with the flame of a furnace, cutting off
the flame passing over the heated ore a gaseous mixture containing a hydrocarbon
vapor and a gas containing chlorine then condensing the resulting vapor.
2. The process of manufacturing aluminium chloride consisting in heating the
aluminium ore to a proper combining temperature passing over the heated ore a
mixture of hydrochloric acid gas and hydrocarbon vapor; then condensing the resulting
vapor.
3. The process of manufacturing, aluminium chloride consisting in heating. the
aluminium ore to a proper combining temperature, cutting off the flame; passing
over the heated ore a gaseous mixture containing carbon and chlorine then condensing
the resulting vapor.
Dated this 10th day of Now 1000