EXTRACTION OF OXIDES OF METALS FROM SOOT AND SIMILAR CARBONACEOUS SUBSTANCES AND THE TREATMENT OF PRODUCTS ARISING THEREFROM
Year: 1884

page_text: I ANNIE ELIZA SCOTT of Lauriston House, Trebovir Road South Kensington in
the County of Middlesex Married do hereby declare the nature of my Invention for
THE EXTRACTION OF OXIDES OF METALS FROM SOOT AND SIMILAR CARBONACEOUS
SUBSTANCES AND THE TREATMENT OF PRODUCTS ARISING THEREFROM to be as
follows:-
This Invention is an improvement upon my invention for which I have obtained
a Provisional Protection dated 26 January 1884 (No 2162) and has for its object
the extraction of metals from substances known as carbon especially soot, and
plumbago, and the formation of carbonated salts during the reaction. This I effect
in the following manner. In a properly constructed furnace I melt saltpetre,
nitrate of soda or other salt, and when it is entirely dissolved, Boot, plumbago, or
other carbon substance, is to be added to the molten salt in small quantities at a
time, it will float on the surface and gradually dissolve without much flashing.
When the soot or other carbon substance is added until the nitre, or other salt
used, is saturated, it is poured out into moulds, and forms a white or colored, hard
substance looking like porcelain. This substance is dissolved in as little water as
possible and passed through a filter press, when carbonate of the salt used will be
found in solution, and can be evaporated The insoluble salts of the metals con-
tained in the soot or other carbon substance used will be found in the press, and
can be seperated by known means. The acid from the salt used is given off during
the reaction and can be conducted from the furnace into properly constructed
vessels or condensers. Hence we have the following reactions given saltpetre, and
soot, after the process is finished we have nitric acid carbonate of potash and the
oxides of the metals contained in the carbon used and no other refuse, This I believe
will be an improvement upon the present black ash process in the manufacture of
carbonated alkali. As yet I can only name one of the metals extracted from soot
viz yttria, I have however found several others which are not yet recognised.
These metals can also be extracted by boiling the carbon substance soot, etc in a .
weak acid, such as acetic, dilute sulphuric, etc, or by allowing it to remain a long
PD

page_text: time in solution in this way I have obtained pure white yttria after precipitating
the salt by caustic alkali. In which ever way the metals are extracted either as
the refuse from carbonated alkalies or by boiling the carbon substance, the products
can be used in the formation of alloys as directed in my Specification Dated
January 26th 1884, No 2162, the alloy with copper forming a very brilliant hard
and useful metal.
I ANNIE ELIZA SCOTT of Lauriston House Trebovir Road South Kensington in
the County of Middlesex do hereby declare the nature of my Invention for THE
EXTRACTION OF OXIDES OF METALS FROM SOOT AND SIMILAR CARBONACEOUS
SUBSTANCES AND THE TREATMENT OF PRODUCTS ARISING THEREFROM and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This Invention is an improvement upon my Invention for which I have obtained
a Patent dated January 26th 1884 No (2162) and has for its object the extraction
of metals as oxides from substances known as carbon especially soot and plumbago,
and the formation of carbonated salts during the reaction. This I effect in the
following manner. In a properly constructed furnace I melt saltpetre nitrate of
soda or other salt, and when it is entirely dissolved, soot, plumbago or other carbon
substance is to be added to the molten salt in small quantities at a time it will
float on the surface and gradually dissolve without much flashing, when the soot
or other substance is added until the nitre or other salt used is saturated, it is to be
poured out into moulds for convenience in handeling and afterwards dissolved in as
little water as possible and passed through a filter press, when the carbonate of the
salts used will be found in the solution and can be evaporated. The insoluble salts
of the metals contained in the soot or other carbon substance and the nitrate or
other salt used will be found in the press, and can be seperated by known means
The acid from the salt used is given off during the reaction and can be conducted
from the furnace into properly constructed vessels or condensers. Hence we have
the following reactions, given saltpetre and soot. After the process is finished we
have nitric acid, carbonate of potash and the oxides or other salts of the metals
contained in the carbon and salt used and no other refuse. This I believe will be
an improvement upon the present black ash process, in the manufacture of carbonated
alkali

page_text: I believe the furnaces at present used in the black ash process would answer
quite well.
In using saltpetre, only sufficient heat is required to melt the salt, but with
common salt an intense heat is necessary to force it to give up its chlorine, and
a small quantity of nitrate is best added to the common salt to aid fusion.
The oxides etc extracted during the above process can be used as described in
my Patent dated January 26th 1884 (No 2162). The alloy with copper forming a
very brilliant hard and useful metal noncorrosive and of great elasticity.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1.The extraction of the oxides of metals from carbonaceous substances.
2nd The manufacture of carbonated alkali by the direct application of carbon to
crude or natural salts.
3rd The use of the said oxides in the formation of allowe