IN TREATING MINERAL COALS BY ACIDS
Year: 1874

page_text: IN TREATING MINERAL COALS BY ACIDS."
PROVISIONAL SPECIFICATION left by the said Stanislas do Nomaison
at the Office of the Commissioners of Patents, with his Petition, on
the 29th May 1874.
I, STANISLAS DE NOMAISON, a resident of the City of Perigueux
(France), Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN TREATING MINERAL COALS BY ACIDS," to be as
follows:-
--
This Invention relates to a process for purifying the coke of coals,
lignite, peat, and other combustible matters from the sulphurous and
other detrimental compounds which are usually present, and which in
the burning of the coke exercise a destructive action on the boilers or
other vessels exposed to the heat, and in metallurgical operations cause."
deterioration of the products.
•

page_text: The purifying process is well suited for peat and lignite, the purifying
coke of the latter presenting the qualities of wood charcoal.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Stanislas de Nomaison in the Great Seal Patent
Office on the 26th November 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, STANISLAS.
DE NOMAISON, a resident of the City of Perigueux (France), Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of May, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Stanislas de Nomaison, Her special license-
that I, the said Stanislas de Nomaison, my executors, administrators, and
assigns, or such others as I, the said Stanislas de Nomaison, my executors,
administrators, and 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, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
TREATING MINERAL COALS BY ACIDS," upon the condition (amongst others)
that I, the said Stanislas de Nomaison, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed,
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 Stanislas de Nomaison, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and.
by the following statement thereof, that is to say :—
This Invention relates to a process for purifying the coke of coals,
lignite, peat, and other combustible matters from the sulphurous and

page_text: The process above described is more readily effected on small coke or
dust, and it is therefore often advantageous to pulverise the material in
the first place, agglomerating it afterwards, especially in cases where
great purity is required and where expense is of minor importance.
For anthracite the pulverising and reagglomeration is advantageous, as
it renders the combustion of this material more easy.
The purifying process is well suited for peat and lignite, the purified
coke of the latter presenting the qualities of wood charcoal.
Having thus described the nature of my Invention and in what
manner the same is to be performed, I claim the combined process, sub-
stantially as herein described, for the purification of coke by carbonising
in the first place the combustible so as to convert its sulphide ingredients
into proto-sulphides, and secondly, by dissolving these impurities in dilute
acid, and thereafter washing the product.
In witness whereof, I, the said Stanislas de Nomaison, have hereunto
set my hand and seal, this Sixteenth day of November, in the
year of our Lord One thousand eight hundred and seventy-
four.
STANISLAS DE NOMAISON. (L.S.)
20 Witness,
ALBERT CAHEN,
Civil Engineer,
of Boulevard Magenta, 32,
at Paris.