Process for Decomposing Sulphuretted Hydrogen, and Obtaining Ammonia, Compounds of Ammonia, Oxysulphides, Sulphides, and Sulphur.
Year: 1895

page_text: Date of Application, 1st June, 1895
Complete Specification Left, 25th Feb., 1896-Accepted, 28th Mar., 1896
PROVISIONAL DI MOTIVATION.
[Communicated from abroad by the Firm of GOERLICH AND WICHMANN, of
No. 32 Ferdinandstrasse, Hamburg, in the German Empire, Merchants.]
Process for Decomposing Sulphuretted Hydrogen, and Obtaining
Ammonia, Compounds of Ammonia, Oxysulphides, Sulphides,
and Sulphur.
I, OLIVER IMRAY of No. 28 Southampton Buildings in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the decomposition of sulphuretted hydrogen and the
production of ammonia, ammonia compounds, oxysulphides, sulphides, and sulphur
by the following process.
The sulphuretted hydrogen is blown through or otherwise brought in contact
with the solution of a nitrite, such for instance as potassium nitrite, a reaction
ensuing such that according to the proportions employed, ammonia sulphur and
the hydrated metallic oxide or oxysulphide are produced, or hydric sulphide of
ammonium and of the metal are produced, and sulphur is set free.
In this manner gases or liquids containing sulphuretted hydrogen may be freed
therefrom by passing them over nitrites or through nitrite solutions, whereby the
sulphuretted hydrogen is decomposed.
Dated this 1st day of June 1895.
ABEL & IMRAY,
Agents for the Applicant.
Process for Decomposing Sulphuretted Hydrogen, and Obtaining
Ammonia, Compounds of Ammonia, Oxysulphides, Sulphides,
and Sulphur.
I, OLIVER IMRAY of No. 28 Southampton Buildings, in the County of London,
Chartered Patent Agent, 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:—
This invention relates to the decomposition of sulphuretted hydrogen and the
production of ammonia, ammonia compounds, oxysulphides, sulphides and sulphur
by the following process:-
The sulphuretted hydrogen is blown through or otherwise brought in contact
with the solution of a nitrite, such for instance as sodium nitrite, a reaction ensuing
such that according to the proportions employed, ammonia, sulphur and the hydrated
Price BL]

page_text: metallic oxide or oxysulphide are produced, or hydric sulphide of ammonium and
of the metal are produced, and sulphur is set free according to the formula:
117
TTA
NaNO +5 H2S: NaSH NH+SH + S³ + 2 H2O
part of the sulphur dissolving in the alkaline solution producing oxysulphide,
probably Na2S2O.
The reaction of sulphuretted hydrogen upon nitrite solutions is slow at first, but
as alkaline sulphide is produced, the reaction becomes more rapid and after some
time the absorption is complete, however rapid may be the current of sulphuretted
hydrogen. If a portion of the sulphuretted solution (two or three molecules of
sulphuretted hydrogen to one of nitrite) is added to a fresh solution of nitrite, the
absorption is rendered very rapid from the beginning.
Nitrite may also be used to decompose sulphuretted hydrogen in the nascent
.state.
For instance, if a mixture of bisulphide of carbon and ammonia is heated in
a closed vessel with addition of the required amount of a nitrite, the sulphuretted
hydrogen is decomposed as soon as it is formed sulphur separating.
Gases or liquids containing sulphuretted hydrogen may be freed therefrom by
passing them over nitrites or through nitrite solutions, whereby the sulphuretted
hydrogen is decomposed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
The herein described process for decomposing sulphuretted hydrogen by subjecting
it, or gases or liquids containing it, to the action of a nitrite.
Dated this 25th day of February 1896.
ABEL & IMRAY,
Agents for the Applicant."