Year: 1888

page_text: Date of Application, 26th Apr., 1888
Complete Specification Left, 12th Jan.. 1889
Complete Specification Accepted. 12th Feb., 1889
We EDWARD WILLIAM PARNELL and JAMES SIMPSON of 84 Rumford Place
Liverpool in the County of Lancaster, Manufacturing Chemists, do hereby declare the
nature of this invention to be as follows:-
When sulphuretted hydrogen is burned with a limited quantity of air and the pro-
ducts of such combustion are passed through a cooling chamber; or when sulphuretted
hydrogen is brought in contact with sulphurous acid in the gaseous state or in-
solution, a quantity of sulphur is formed together with certain acid compounds of
sulphur, soluble in water, which latter we shall describe by the general term of
thionic acids.
The object of our invention is to treat the aforesaid thionic acids so as to get the
sulphur which they contain in the solid form.
Our invention consists in bringing the thionic acids formed in either of the above
reactions into prolonged contact with sulphuretted hydrogen when decomposition will
take place with ultimate formation of sulphur and water, the former being deposited
in the solid form.
In carrying our invention into practice we cause the liquor containing the thionic
acids to flow through a suitable apparatus such as a leaden flue or tunnel, while the
sulphuretted hydrogen about to be treated by either of the two reactions first men-
tioned above, or the sulphuretted hydrogen which has been partly treated by either of
the said reactions, is also passed through the same flue or tunnel, preferably in the
opposite direction to the flow of the liquor.
It is manifest that the length of time during which given quantity of the thionic
acid solution requires to be submitted to the action of the sulphuretted hydrogen can
be regulated by adjusting the dimensions of the flue or tunnel to the quantity to be
dealt with, and the speed of the flow of liquid.

page_text: The sulphur formed by the treatment of the thionic acids by sulphuretted hydrogen,
as well as the sulphur formed in either of the two reactions first mentioned is collected
and melted into merchantable sulphur in the well known manner, or utilized otherwise
as may be desired.
.COMPLETE SPECIFICATION.
Improvements in the Production of Sulphur from Sulphuretted
Hydrogen..
We EDWARD WILLIAM PARNELL and JAMES SIMPSON of 84 'Rumford Place
Liverpool in the County of Lancaster Manufacturing Chemists, 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 :—.
When sulphuretted hydrogen is burned with a limited quantity of air and the
products of such combustion are passed through a cooling chamber, or when
sulphuretted hydrogen is brought in contact with sulphurous acid in the gaseous state
or in solution, a quantity of sulphur is formed together with certain acid compounds
of sulphur-soluble in water-which latter we shall describe by the general term of
thionic acids.
The object of our invention is to treat the aforesaid. thionic acids so as to get the
sulphur which they contain in the solid form.
Our invention consists in bringing the thionic acids formed in either of the above
reactions into prolonged contact with sulphuretted hydrogen when decomposition will
take place with ultimate formation of sulphur and water—the former being deposited
in the solid form.
In carrying our invention into practice we cause the liquor containing the thionic
acids to flow through a suitable apparatus such as a leaden flue or tunnel or through a
series of vessels of suitable acid resisting material such as wood, provided with agitators
of the same material. The sulphuretted hydrogen about to be treated by either of the
two reactions mentioned above, or the sulphuretted hydrogen which has been partly
treated by either of the said reactions is passed through the flue, tunnel, or series of
vessels in the opposite direction to the flow of the liquid..

page_text: .
It is manifest that the length of time during which a given quantity of the thionic
acid solution requires to be submitted to the action of the sulphuretted hydrogen can
be regulated by adjusting the dimensions of the flue or tunnel or number of vessels to
the quantity to be dealt with and the speed of the flow of fluid.
The sulphur formed by the treatment of the thionic acids by Sulphuretted hydrogen
as well as the Sulphur formed in either of the two reactions first mentioned is collected
and melted into merchantable Sulphur in the well known manner or utilized otherwise
as may be desired.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed we declare that what we claim is.
In combination with the production of Sulphur from Sulphuretted hydrogen by
burning the latter with a limited quantity of air, and cooling the products of com-
bustion or by bringing Sulphuretted hydrogen in contact with sulphurous acid-the
above described method of recovering the Sulphur from the thionic acids formed in
either of the said reactions.