IMPROVEMENTS IN THE METHOD FOR DECOMPOSITION OF SALTS OF AMMONIA, AND IN APPARATUS USED THEREFORE
Year: 1880

page_text: ES
LETTERS PATENT to Lorentz Albert Groth, K.G.V., Civil Engineer, and
Proprietor of the Scandinavian Patent Office, under the Firm of L. A. Groth
& Co., 97, Finsbury Pavement, London, and 20, Forhaabningsholms Allee,
Copenhagen, for an Invention of IMPROVEMENTS IN THE METHOD FOR
DECOMPOSITION OF SALTS OF AMMONIA, AND IN APPARATUS USED THEREFORE."
A communication from abroad by Waldemar Rube, Hermann Theodor
Eugelcke, and Carl Julius Bernhard Krause, all of Trotha, near Halle a/s, in
the Kingdom of Prussia, Germany.
PROVISIONAL SPECIFICATION left by the said Lorentz Albert Groth at
.
tho Office of the Commissioners of Patents on the 8th September 1880..
LORENTZ ALBERT GROTH, K.G.V., Civil Engineer and Proprietor of the
Scandinavian Patent Office, under the Firm of L. A. Groth & Co., 97, Finsbury
Pavement, London, and 20, Forhaabningsholms Allee, Copenhagen. "IMPROVEMENTS
IN THE METHOD FOR DECOMPOSITION OF SALTS OF AMMONIA, AND IN APPARATUS
USED THEREFORE." A communication from abroad by Waldemar Rube, Hermann
Theodor Engelcke, and Carl Julius Bernhard Krause, all of Trotha, near Halle a/s,
in the Kingdom of Prussia, Germany.
This Invention relates to improvements in the method for decomposition of salts
of ammonia with aid of lime or magnesia, also in the apparatus used for this
purpose.
The developed ammonia can be driven off the easier, the greater the overplus of
the substance is which cause the decomposition, and thereby the consumption of
steam becomes the smaller. The lime or magnesia operates in this process as the
producing catalytic effect.
The apparatus is constructed as a pillar or column, and is divided in different
compartments, one compartment being placed upon another and fitted together by
means of flanges and screws. The floors of the compartments are conical, and thus
forming funnel like receptacles, whereby all the heavier substances are collected or
assembled in the point of the funnel. Each compartment is to be filled with the

page_text: solution to correspond with the heights of the pipes placed vertically, and com-
municating with each two of the compartments, and over the edge of which the
liquid will flow and pass through its under opening into the compartiment below.
The gas which is evolved from the mass ascends with the moisture, and is
imparted downwards through a pipe into the bottom of the lowest compartment,
and from thence upwards into the respective compartiments through bended pipes,
two of which being fitted opposite each other on the conical sides in each com-
partment. The uppermost compartments will thus contain the greatest quantity of
ammonia. The conical form of the compartment lengthens the way for the gas,
the lower point of each compartment being closed by means of a valve or
damper connected with a rod passing through a packing and fitted with a handle.
By opening the valve the masses of lime or magnesia will fall down in the com-
partment beneath, and be distributed with the liquid in order to sink little by
little to the floor. The lowermost compartment is provided with two pipes
extending from its bottom in contrary direction to each other in order to carry
away the mass by aid of either water conveyed through a pipe placed in a paralell
slanting direction with the conical wall in the compartment, and in its lower end,
or with steam conducted through a pipo fitted similarly to the former mentioned
for water, but on the opposite side of the compartment. The top cover of the
apparatus is provided with several openings, one for admitting the limo solution
and another for the liquid of ammonia.
Both the masses become mixed in the same compartiment, but are moving as it
were separately, the one along the conical walls, and the other through the pipes
which are communicating with each of two compartments, but during the time
reacting upon each other, thereby the fluidity serves as cool-fluidity for the gas
and steam.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
tho said Lorentz Albert Groth in the Great Soal Patent Office on the 7th
March 1881.
LORENTZ ALBERT GROTH, K.G.V., Civil Engineer and Proprietor of tho
Scandinavian Patent Office, under the Firm of L. A. Groth & Co., 97, Finsbury
Pavement, London, and 20, Forhaabningsholms Allee, Copenhagen. "IMPROVEMENTS
IN THE METHOD FOR DECOMPOSITION OF SALTS OF AMMONIA AND IN APPARATUS
USED THEREFOR." A communication from abroad by Waldemar Rube, Hermann
Theodor Engelcke, and Carl Julius Bernhard Krause, all of Trotha, near Halle a/s,
in the Kingdom of Prussia, Germany.
This Invention relates to improvements in the method for decomposition of salts
of aminonia with aid of lime or magnesia, also in the apparatus used for this
purpose. The developed ammonia can be driven off the easier, the greater the
overplus of the substance is which cause the decomposition, and thereby the con-
sumption of steam becomes the smaller. The lime or magnesia operates in this
process as the substance producing catalytic effect.
The construction of the apparatus is illustrated in and by the accompanying
Drawings, and the letters and figures marked thereon.
Figure 1 is a vertical longitudinal section, and Fig. 2 is a plan view of the
same. The apparatus is constructed as a pillar or column, and is divided into
different compartments d, to dono compartment being placed upon another and
fitted together by means of flanges and screws 8, to 8.
The floors of the compartments are conical, and thus forming funnel like
receptacles, whereby all the heavier substances are collected or assembled in the
point of the funnel.
Each compartment d₁ to do is to be filled with the solution to correspond with
the height of the pipes e, to e placed vertically, and communicating with each two
of the compartments, and over the edge of which the liquid will flow, and pass
through its under opening into the compartment below.
The gas which is evolved from the mass ascends with the moisture, and is
imparted downwards through a pipe i into the bottom part of the lowest compart-
ment d₁, and from there upwards into the respective compartments d, to d, through
bent pipes g₁ to g two of which being fitted opposite each other on the conical
sides in each compartment.
The uppermost compartment will thus contain the greatest amount of ammonia.
The conical form of the compartments lengthen the way for the gas.
The lower point of each compartment being closed by means of a valve or
damper connected with a rod k, passing through a packing m, and fitted with
a handle 1, Fig. 2. By opening the valve the masses of lime or magnesia will fall
down in the compartment beneath, and be distributed with the liquid in order to
sink little by little to the floor.
The lowermost compartment d, is provided with two pipes p, p, extending from
its bottom in contrary directions to each other in order to carry away the mass by
aid of either water conveyed through a pipe placed in a parallel slanting direction
with the conical wall in the compartiment, and in its lower end, or with steam
conducted through pipe i, fitted similarly to the former mentioned for water, but
on the opposite side of the compartment.
The top cover of the apparatus is provided with several openings, one a for
admitting the lime solution, and another c for the liquid of ammonia.
Both the masses become mixed in the same compartment; but are moving as it
were separate, one along the conical walls, and the other through the pipes e, to e
which are communicating with each of two compartments, but during the time

page_text: reacting upon each other, thereby the fluidity serves as cooling fluid for the gas
and steam.
Having now described the nature of the said Invention, and the manner in
which the same is to or may be performed, I would have it understood that what I
claim is,―
First. The method herein described for using the catalytic effect of the contact
substances lime or magnesia for developing the solution of ammonia.
Second. The arrangements of the apparatus herein described for the carrying on
of continual working.
Third. The arrangements of the apparatus herein described, and compartments
therein d₁ to d, in form of funnels, and the moving of the substances thereby in
different directions while the solving of the line or inagnesia is therewith
accompanied.
Fourth. The arrangements of the apparatus as herein described, whereby the
carrying away of the heavy substances from the-compartments.d.to do, and from
the apparatus through the valves h, to h, and the pipes p, p, is attained.
Fifth. The arrangements of the apparatus as herein described, whereby the
fluidity therein serves as cooling fluid for the gas and steam.
Sixth. The arrangements of the apparatus as herein described, whereby a larger
and increasing solving with gas of ammonia is obtained in the uppermost
compartment.
In witness. whereof, I, the said Lorentz Albert Groth, have hereunto set my
-hand and seal, this Fifth day of March, in the year of our Lord One.
thousand eight hundred and eighty one.