AN IMPROVED METHOD OR PROCESS OF EXTRACTING OR SEPARATING IRON FROM SOLUTIONS CONTAINING THE SAME
Year: 1883

page_text: LETTERS PATENT to Gerard Wenzeslaus von Nawrocki Proprietor of the firm
of J Brandt & G. W v Nawrocki, Patent Solicitor and Civil Engineer of
124 Leipzigerstrasse, Berlin, Germany for an Invention of "AN IMPROVED
METHOD OR PROCESS OF EXTRACTING OR SEPARATING IRON FROM SOLUTIONS
CONTAINING THE SAME" a communication from Loewig & Co of Gold-
schmieden, Silesia, in the Empire of Germany.
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PROVISIONAL SPECIFICATION left by the said Gerard Wenzeslaus von
Nawrocki at the Office of the Commissioners of Patents on the 19th May,
1883.
1.
GERARD WENZESLAUS VON NAWROCKI, Proprietor of the firm of J. Brandt
& G, W, v Nawrocki, Patent Solicitor and Civil Engineer of 124, Leipzigerstrasse;
Berlin, Germany. "AN IMPROVED METHOD OR PROCESS OF EXTRACTING OR
SEPARATING IRON FROM SOLUTIONS CONTAINING THE SAME" [a communication
from Loewig & Co of Goldschmieden, Silesia, in the Empire of Germany.]
This invention relates to the extraction or separation, by means of electricity, of
iron from solutions of metallic salts containing the same
In carrying the said invention into practice the ferrous solution of metallic salts
is subjected to the action of strong electric currents.
i
A metal or a compound containing a metal is used as the anode, providing the
said metal or compound forms insoluble or nearly insoluble salts
halts with the acid of
the metallic salts; any suitable metal is used as the cathode.
The use of lead as an anode is. advantageous in the case of sulphates of the
metals, but silver is preferable for chlorides.
The iron is separated from the solution after a short period of time and collects
upon the cathode so as to become fixed thereon; this taking place without the
ferrous solution of metallic salts being decomposed by the metal of the anode.
The separation of the iron from the solution will not take place unless the
production of oxygen at the anode can be almost entirely prevented. This can be
effected either by using an anode with a large surface or by causing as inuch
resistance as possible to be offered to the passage of the electric current at the
anode; it is most advantageous however, to combine these two methods, care must
be taken to neutralize any free acid that may be present in the ferrous solution of
metallic salts

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Gerard Wenzeslaus von Nawrocki in the Great Seal Patent Office on
the 19th November 1883.
GERARD WENZESLAUS VON NAWROCKI Proprietor of the firm of J. Brandt and
G. W. v Nawrocki Patent Solicitor and Civil Engineer of 124 Leipzigerstrasse,
Berlin, Germany "AN IMPROVED METHOD OR PROCESS OF EXTRACTING OR
SEPARATING IRON FROM. SOLUTIONS CONTAINING THE SAME A communication
from Loewig and Co. of Goldschmieden, Silesia, in the Empire of Germany
"
This invention relates to the extraction or separation, by means of electricity, of
iron from solutions of metallic salts, such as sulphate of soda or sulphate of
alumina,
In carrying the said invention into practice the ferrous solution of metallic salts
is subjected to the action of strong electric currents.
A metal, or a compound containing a metal, is used as the anode, providing the
said metal or compound forms insoluble, or nearly insoluble, salts with the acid of
the metallic salts; any suitable metal is used as the cathode. The use of lead as
an anode is advantageous in the case of metallic sulphates, but silver is preferable
for metallic chlorides.
The iron is separated from the solution after a short period of time and, collects
upon the cathode so as to become fixed thereon, this taking place without the
ferrous solution of metallic salts being affected by the metal of the anode.
The separation of the iron from the solution will not take place unless the
production of oxygen at the anode can be almost entirely prevented. This can be
effected either by using an anode with a large surface, or by causing as much
resistance as possible to be offered to the passage of the electric current at the
anode; it is most advantageous, however, to combine these two methods; care
must be taken to neutralize any free acid that may be present in the ferrous
solution of metallic salts.
Having thus fully described the said Invention as communicated to me by my
Correspondents and the manner of performing the same I wish it understood that I
claim:
The process hereinbefore described of extracting, by means of electricity, the
iron contained in solutions of metallic salts.
In witness whereof I the said Gerard Wenzeslaus von Nawrocki have hereunto
set my hand and seal this sixteenth day of November in the year of our Lord One
thousand eight hundred and eighty three.
GERARD WENZEST. AUTS ON NAWROCKI
Ta