US1322026A - Apparatus fob - Google Patents

Description

H. B. KIPPER.

APPARATUS FUR PRODUCING CYANIDS FROM NITROGEN 0H AIR.

APPLICATlON FILED FEB-19,1918.

HERMAN B. KIPPER, or. MUsKneon, momenti.

PIJARATUS FOR PRODUCIG CYANIDS FROM NITROGEN 0R AMER.

bananen'.

speeineation of Letters Patent.

lll'atentcd Nov.. l0, fait.

application filed February 19, 1918. y Serial No. 218,063.

.To all 'whom it may concern.'-

Be it `known that I, HERMAN B. KIPPER, a citizen of the United States of America, residing at Muskegon, in the county of Muskegon and State of Michigan, have invented certain new and useful Improvements in .ftpparatus for Producing Cyanide from liltrogen or Air, of which the following is a specification.

lhe present invention relates to improvements in apparatus for producing cyanids and analogous compounds from nitrogen or air, and is based on the principle that if nitrogen or air is passed over sodium carbonate, carbon and iron at a temperature of abeut 000 to 10000 centigrade, nitrogen will be absorbed and cyanids.or similar compounds produced.

To commercially utilize this Well known riniction many attempts have been made during the past thirty years to produce an aymaratus for this ynnfpose, Which, however, have not been successful.

.ln the accompanying drawing Which forms part of this specification, and in which similar reference characters denote corresponding parts, Figure l is a more or less diagranunatic sectional View of the apparatus; Fig. 2 a cross section on line 2-2 of lfig. l; Fig. 3 a cross section on line 3--3 of Fig. l and Figa an enlarged sectional View of the feeding end of the rotary reacting cylinder.

ln the drawing A denotes a producer or furnace which is fed with coke, preferably 4'iwtroleun1 coke or other ashless fuel, through' a hopper or charge opening B. From one side of this furnace leades a cylinderl or pipe into a suitably mounted revolving steel. cylinder E. rlhis cylinder E is lined with an outer layer c of insulating bricks and a second or inner layer c2 of re. ractory lining buch as magnesia or soapstone, which will withstand the action of fused alkaline caraies. The tempt-rature in the cylinder adapted to be maintained above 0000 Vnde. F a .feed pipe arranged at a s leading tln'ough the pipe l) into n end of the revolving cylinder E, t said pipe. Il and l are regenerv slows ol nell known construction, cach l .l into a Xiilurality of longitudinal :1 fifa/10. il which. communicate with each -r u lfffrnatcrv at their opposite ends'. v"The winters fl. l are provided with blowfans it", i and discharge passages H2.

I2 leading to the chimney (not shown).

These regenerators are connected at one end by pipes vz', i having valves 2 to a pipe 7' leading into the bottom of the furnace A and at the opposite end by pipes la, 7c to a cylinder or pipe L, which communicates with the open end of the revolving cylinder E opposite the feed F. The pipes it', 7c also communicate with a pipe Z leading into another revolving cylinder K having also a slanting feed K and which serves as a preheater. The opposite end of the preheater communicates through a pipe m with the feed F. The cylinder or pipe L is formed at its bottom with aspiral feed M of usual construction. N denotesa pipe for the admission of nitrogen gas. Any suitable means for operating the cylinders E and K may be employed,

such as wheels or the like.

The mode of operation of this apparatus is as follows:

The finely divided reacting material, such as sodium carbonate, carbon and iron,v is introduced first into cylinder K by pipe le and passing through the cylinder is preheated to a temperature of 400 to 6000. rllhis preheated material is then fed through suitable means such as a spiral or other conveyer into the connecting slanting pipe F through which it slides down by its own gravity. The

furnace A receives `a certain amount of ashless fuel such as petroleum coke or the like. Since preheated air is fed into the fuel bed contained in furnace A, the temperature developed may be made very readily to exceed 10000 C., and by regulation of the temperature of the preheated air the reacting temperature derived may readily be established and maintained in cylinder E. It is necessary to use an ashless fuel in furnace A since any fuel containing ash will give so bad a clinker as to render furnace A inoperative.

After completion of the reaction in cylinder E, the cyanids and analogous compounds formed together with any material not acted upon will leave the cylinder through the opening leading from the latter into the pipe li, by itself, when the cylinder is entirely filled or through a suitable conveyer such as a spiral or the like which m ay be arranged within said opening or passage; and fall down onto the conveyer M. lilitrogen gas will be fed 'through pipe lil into "the cylinder L in order to surround the If cyanide und analogous con'lpounds with an. atmosphere of nitrogen during cooling.

lart of thc producer' gas leaving the cylinder E flows through cylinder L to pipe Z and thence to the ireheater cylinder K and another part of tlie producer gas leaving the cylinder E is fed through the pipes k, to the regenerators H and I. Vliile the producer gas flowing from the reacting cylinder l mixed with air is being fed through regenerator H, the fan I xblows air through regenerator I and into furnace A; Subsequently when regenerator I has become sufficiently cool, producer gas and air are fed through it and passed through discharge I2 to the Waste-,heat stack, while regenerator H is used for preheating the air to be fed to furnace A. As mentioned,

v-a portion of the producer gas leaving E is used for preheating the reacting materials in cylinder K and the gases burned in the latter are led to the waste heat stack through m.

lT he construction shown is of course only one embodiment of my invention. It is understood that the apparatus may be modified in various Ways Without departing from the principle of my invention, and I therefore do not wish to restrict myself to theV details shown and described.

What I claim and desire to secure by Letters Patent is:

l. An apparatus for producing cyanide or the like, consisting of a revolving cylinder for the reacting material, -a fuel furnace directly connected with said cylinder, a' preheate-r having a feed leading into the same and a feed leading from the same into said cylinder and regenerators connunicating each at one end with said furnace and at the opposite end with said cylinder and the preheater. i

2. An apparatus for producing cyanids or the like, consisting of a revolving cylinder for the reacting material, an -ashless fuel furnace directly connected with said cylinder, a revolving preheating cylinder having a feed leading into said cylinder and a feed leading from said cylinder into said first named cylinder, and regenerator stoves each having longitudinal flues alternately communicating with one another, said lstoves communicating cach at one end with said furnace and at the opposite end with said first named cylinder and the said preheating cylinder.

3. An apparatus for producing cyanids or the like, consisting of a revolving cylindcr for the reacting material, an ashless fuel furnace directly connected with said cylinder, a prcheater having a feed leading into the same and a feed leading from the same into said cylinder, and regenerator stoves each having lines alternately comnmnicating with one another, said stoves communieating each at one end with said furnace and at the opposite end with said cylinder and the said preheater.

4. An apparatus for producing cyanids or the` like, consisting of a revolving cylinder for the reacting material, a fuel furnace directly connected with said cylinder, a. preheater having a feed leading into the same and a feed leading from the same into said cylinder, and rcgencrator stoves each having flnes communicating with one another, said stoves communicating each at one end with said furnace and at the opposite end with said cylinder and the said preheater.

5. An apparatus for producing cyanids or the like, consisting of a revolving cylinder for the reacting material, a fuel furnace directly connected with said cylinder, a revolving preheater having a feed leading into the same and a feed leading from the same into said cylinder and rcgenerator stoves each having fines communicating with one another, said stoves communicating each at one end with said furnace and at the opposite end with said cylinder and the said preheater. l

In testimony whereof I ailix my signature in pre-sence of two witnesses.

- HERMAN B. KIPPER. lVitiiesses 1 IVALLACE Foorn, GRACE VANDERZYL.

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