Year: 1888

page_text: I, GEORGE SHEPARD PAGE of 69 Wall Street in the City of New York, State of
New York, United States of America, Chemical Engineer, do hereby declare the
nature of this invention to be as follows
-
The invention referred to in the succeeding paragraphs has reference to the utiliza-
tion of gis liquor, its high concentration for purposes of economic al transportation, its
conversion into aqua animoni by direct process, and the further treatment of the aqui
ammonia by which all the water is eliminated and the immonia gas compressed, pro-
ducing a substance known to the trade is anhydrous liquid ammonia
The uncondensed
In the first instance the ammonical liquor, as produced in gis making, or as a bye
product in the manai icture of coke, or as obtained from the gases of blist fuin ices, is
transferred to stil' (preferably of wrought iron), containing certain lengths of steun
pipe as governed by the volume of liquor to be treated The ammonia, together with
the sulphur and cyanogen impurities, combined with aqueous vapour are carried
forward, a large percentage being deposited in an adjacent receiver of about two
thirds the capacity of the one first mentioned The balance of the ammoni gas, and
the aqueous vapour go forward, a portion being deposited in third receptacle
preferably about a quarter of the capacity of the first nimed
portions of the product go forward through an upright apparatus divided into com-
partments horizontally, the gises and aqueous pour being compelled to impinge
gunst ovil plates An additional portion of the iqueous vapour is here separited,
passing back into the list named receptacle by gravity The balance goes forward,
and is conveyed through tubes in a condensing tank At this point water is admitted
for the purpose of cooling while a further percentage of the aqueous vapour is by
gravity passing back the gas is going forward into a second and a third condensor of
similar character They are then conducted to sinall iroi recuiver in a tank, the
receiver being surrounded by witer The remaining portion or the uncondensed
product, which consists largely of ammonia is deposited in the receiving tank
concludes the process for economical and effective concentration of the gas liquor
This

page_text: From the receiving tank last mentioned the concentrated ammonia is transferred to
a still, which can be heated either by steam or direct heating Steam is preferably
used The ammonia gises charged with sulphur and cyanogen compounds and car-
bonic acid go forward and they are separated by purifiers containing caustic soda
These eliminate portion of the impurities, the remainder of the products going
forward, and being compelled to piss through purifiers containing animal charcoal
These last purifiers eliminate every remuning impurity, permitting the pure ammonia
gas to go forward and being disch irged into distilled water
The irrangement of the apparatus is such that at one continuou open ition this
distilled water can be charged with immons gas to the extent of from 25 to 30 per
cent The qu unmonia is drawn off into receivers of iny desirable form The
aqui ammom is discharged slowly from the receivers into stills (preferably of cast
iron) of from 2 to 3 feet in diameter, cont uning a series of division plates
Super heated steun in a coil is admitted to this still the heat from which ascending,
meeting the slowly descending iqua immonia, drives off the ammoni gas, which is
compelled to piss through the receiver containing caustic lime, which eliminates all
aqueous vipour
The gas is then admitted into cylinder compressing engine and is quickly
converted into a liquid
A self acting automatic valve allows the escape of this liquid into a storage
receiver, from which receiver the anhydrous liquid immonia is drawn into the tanks
used for shipment
Should the conditions warrant doing so in order to save the cost of transferring
the immom gis obtuned from the gas liquor into the distilled water, thus mihing
qui ammonit, treat the ammonit gis by compression, at once forming anhydrous
liquid ammonia
Dated the 7th day of Tuan 1000
WH BENNETT,
Agent for the Applicant

page_text: I, GEORGE SHEPARD PAGE of 69 Wall Street, in the City of New York, State
of New York, United States of Americi, Chemical Engineer, do hereby declare the
nature of this invention and in what manner the sune is to be performed, to be
particularly described and ascert uned in and by the following statement
This invention has for its object the utilization of gas liquor, its high concentration
for purposes of economical transportation, its conversion into aqua ammonia by direct
process, and the further treatment or the aqui ammonit by which all the water is
eliminated and the ammonia gas compressed, producing substance known to the
trade as anhydrous liquid ammonia
The following is an explanation of the mode of manufacture of aqua ammonia, or
anhydrous ammonia direct from gas liquor
The crude gas liquor is run into a still A Fig 1 Live stem is introduced and th
aimoni gas is carried forward together with quantity of vapour The distillation
is continued for the length of time necessary to drive off all the ammonia which can
be done in this manner The emuning ammonia is broken up and sent forward by
the introduction of milk of lime The residual product freed from ammonia is turned
off into a sewer The ammonia gas is conducted through pipe B into purifier C
This purifier is filled with charcoal or other carbonaceous material, which removes the
sulphur impurities from the ammonia gas From this purifier the ammonia passes
through pipe D to the purifier E This is filled with preparation of caustic soda,
which eliminates the remuning impurities The amonia gas now freed from its
impurities and from the vapour with which it was conveyed, continues through the
pipe F to the condenser G A volume of water is admitted to the condenser and the
ammonia gas passes forward through pipe H to the reservoir I This reservoir contains
distilled water which has great affinity for ammonia gas The ammonia gas is
absorbed, and when by proper test the strength is 26 degrees Beaume, the aqua ammonia
is finished and is drawn off by pipe J into drum K
To produce anhydrous ammonia, the crude gas liquor is run into a still A Fig 2
By the ud of live steam the ammonia gas is carried forward by pipe B to receptacles C
and E, where it is purified The immon gas then passes on through pipe F to the
condenser G, which is preferably located, say, fifty feet above the ammonia distilling
apparatus
This condenser consists of a large number of pipes connected together by
bends, or a coil, or coils of pipe, through which the ammonia is conveyed These coils
of pipe are cooled by water of low temperature on their exterior The ammonia

page_text: gas is thus condensed and by gravitation fills in the pipe H to the receiver I The
ammonia will now be in a liquid condition, quite free from water, ind when wanted
for use is turned off by the pipe J into tank K, or suitable cylinders for shipment
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim 18
The process whereby chemically pure aqua ammonia or anhydrous ammonia may be
produced, as herein described, and by apparatus as shown on the drawings