Improvements in the Utilization of the Broken Bricks used in the Deacon Chlorine Process, and the Recovery of Copper therefrom.
Year: 1893

page_text: Date of Application, 10th Nov., 1893
Complete Specification Left, 8th Aug., 1894-Accepted, 8th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Utilization of the Broken Bricks used in
the Deacon Chlorine Process, and the Recovery of Copper
therefrom.
We, JOSIAH RIGBY WYLDE, of Fazakerley House, Prescot, in the County of
Lancaster, Manufacturing Chemist and DAVID WILLIAMS, of 11 Windle Street,
St. Helens, in the same County, Chemical Works Manager, do hereby declare the
nature of this invention to be as follows:-
This invention has for its object the utilization of the broken bricks used in the
Deacon chlorine process.
Up to the present time these bricks have been thrown away after being used for
some time, owing to the fact that the copper which exists in the form of chloride
becomes partially converted into sulphate of copper which is inactive for the
decomposition of hydrochloric acid by the Deacon process. This is owing to traces
of sulphuric acid being carried over with the hydrochloric acid gas.
Now in place of throwing these bricks away, we recover the copper by lixiviating
them with water with or without the admixture of other solvent or chemical having
a decomposing action on the copper salts.
In carrying out our invention therefore, we lixiviate the bricks with water
containing a small quantity of acid, preferably hydrochloric acid, which extracts
the whole of the copper in the soluble form; we then precipitate with iron in the
usual way.
The bricks, after drying, are now ready for fresh treatment with copper
chloride.
Dated this Oth day of November 1893
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicants.
COMPLEIE DI DUIFICATION.
Improvements in the Utilization of the Broken Bricks used in
the Deacon Chlorine Process, and the Recovery of Copper
therefrom.
We, JOSIAH RIGBY WYLDE of Fazakerley House, Prescot, in the County of
Lancaster, Manufacturing Chemist and DAVID WILLIAMS of 11 Windle Street,
St. Helens in same County, Chemical Works Manager, 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 has for its object the utilization of the broken bricks used in the
Deacon chlorine process.
Up to the present time these bricks have been thrown away after being used for
some time, owing to the fact that the copper which exists in the form of chloride
becomes partially converted into sulphate of copper which is inactive for the
decomposition of hydrochloric acid by the Deacon process. This is owing to traces
of sulphuric acid being carried over with the hydrochloric acid gas.
Now in place of throwing these bricks away, we recover the copper by lixiviating
them with water with or without the admixture of other solvent or chemical having
a decomposing action on the copper salts.

page_text: In carrying out our invention therefore we lixiviate the bricks with water
containing a small quantity say about 5% of acid, preferably hydrochloric acid,
which extracts the whole of the copper in the soluble form; we then precipitate
with iron in the usual way.
The bricks, after drying, are now ready for fresh treatment with copper
chloride.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. The utilization of the broken bricks used in the Deacon chlorine process and
formerly thrown away, by lixiviating them with water containing a small quantity
of acid, preferably hydrochloric acid, whereby the bricks after drying are fit to use
again, and the recovery from the washings, of the copper which was contained in
the broken bricks, in the ordinary way by precipitation.
A
1
1004
WM. P. THOMPSON & Co.,
Of Liverpool, Birmingham, Manchester, Nottingham, and London,
Patent Agents.