US1697390A

US1697390A - Process of speeding chemical reactions

Info

Publication number: US1697390A
Application number: US109149A
Authority: US
Inventors: Herman B Kipper
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-05-14
Filing date: 1926-05-14
Publication date: 1929-01-01
Anticipated expiration: 1946-01-01

Description

Jan. 1, 1929.

H. B. KIPPER PROCESS 0F SPEEDING CHEMICAL REACTIONS Filed May 14, 1926 INVENTOR wlllI-l-I-I-I- l-I-Illlll BYl A ORNEY LST 4&5

Patented Jan. l, 1929.

.uNrryso srarss maia-ae HERMAN B. Kieran, or Musfxaeorr, MICHIGAN.

PRDCESS 01E SPEEDING CHEMICAL REACTIONS.

Application led May 14, 1926. Serial No..109,1|49.

Thepresent invention relates to the maniufacture of sodium sulphate and hydrochloric acid from sulphu'ric acid and salt,

" dam, whic or fused nitre cake and salt and has orits object to provide a process and apparatus whereby lthe speed of chemical reaction loetween sulphuric acid and salt or nitre cake and salt will be greatly increased to enhance the commercial value of Ithe process and .whereby caking of the materialin the converter will be moreI effectively prevented than with the other hitherto known processes of the same kind.

To accomplish my object I utilize an apparatus .constructed substantially as shown and described in. my U. S. Letters Patent No. 1,512,226, but in which the Scrapers, instead of revolving with the high speed )of the grinding or beating hammers, are. moved at a greatl reduced speed. I also provide a will hold back the reaction ma-v terials before they pass out from the converter asa result of which they are sub-i jected to the action of the beating hammers for a longerperiod. 4

To make my invention more clear the apparatus used for carrying out the process is more or less diagrammatically illustrated in the accompanying drawing in which similar reference characters denote corresponding'parts. v

The well linown reactions involvedl in this process are i The suitably preheated sulphuric acid and l salt or ground or fused nitre cake andsalt t mounted on and revolve with the shaft 14- are fed into the reaction cylinder or conthat extends through the cylinder and is driven `from a suitable source of power by' pulley Pand belt B or in any other suitable manner. As in said application the shaft 14 is hollow to form a passage 'for water or other cooling medium and is externally isolated as at 15. In this construction the heads 11 of' the cylinder l0 are fixed to the latter.

Rotatively mounted on the shaft 14 near each end thereof are sleeves 19 with disks 20 to the periphery of which are `fixed a plurality of bevelled bars y12 extending longitudinally of andx1 close to the inner face of the cylinder. These bars 12 serve as Scrapers and are adapted to. prevent caking. A shaft 24 which is driven with greatly reduced speed from the shaft 14 by suitable means transmits motion by. sprocket chains and

gears

21, 23 and 22 to the sleeves 19 so that the Scrapers 12 will revolve concentrically with the hammers 16 but with relatively low speed and thereby more effectively keep the cylinder wall free from incrustation. 'Ihe Scrapers have suitably attached to them at the rear of and near the exit c1 of the cylinder a rim or flange 13 which serves as a dam adapted to retard the exitof the'reaction material prior .to their passing'into the discharge c1 of the cylinder. .While the reaction'materials are thus retarded by the slow moving dam, they are subjected to a finalv and effective beating action of the rapidly revolving metal hammers 16, whereby the conversion efficiency of 'the apparatus is greatly enhanced.

The material v leaving the apparatusthrough the passage c1 may if necessary be carried either through a dust or separation chamber 24 having a passage 241 or directly into a second converter (not shown)- identically of the same ,construction as the one described, in which they are treated once more in the same manner.

In my 'experiments with the process I have lu sed metal pajts of di'erent shapes but have described and shown only those most adva tageous. I do not wish, however, to restrict I1Inyself to any of the details shown and described, since various modifications may be made withoutdeparting'from the vprinciple of my invention.

During the passage of the materialJ through my converter I' have spoken' generally ofV its grinding action or effect. The term might-be said to have been employed relatively. Thusmixing and grinding may merge into one another as day into night. If the raw materials are ground very fine, say toa 300 mesh size, they leave the converter somewhat coarser. On the' other hand if they enter the converter sayat a 20 mesh f of the finished product.

the apparatus is increased with increase of.

1 '.1. In the phate and size they leave it in a much finer state. Ag-l gregation and grindingare both continually takingplace. Again the speed at which the rapidly moving metal parts travel (I use generall :from a half a mile to a mile a minute) argely determines the fineness The efficiency of speed of the rapidly moving parts Within such limit as are mechanically practical. `What I claim is:

process of producing sodium sulydrochloric acid from sodium chloride and sulphuric acid or sodium hydrogen sulphate the steps of grinding and beating the reaction materials in a heatedv vessel by rapidly moving metal parts and keeping said vessel free from caking of the lmaterial by slowly -moving metal parts.

` 2. In the process of producin sodium sulphate and hydrochloric acid ronr sodium acid and sodlum hydrogen sulphate and of producing sodium hydrogen sulphate and hydrochloric acid from'sodium chloride and sulphuric acid,- the steps of grinding and beating the reactionmaterials in a heated vessel by rapidly moving metal parts and of keeping said vessel free from caking by the materials therein contained by slowly moving metal parts.

`inished product by a dam, partially restricting the reaction Vessel at the outlet end.

4. In the process of producing sodium sulphate and hydrochloric acid from sodium acid and sodium hydrogen sulphate and of `producing sodium hydrogen sulphate' and hydrochloric acid from sodium chloride and sulphuric acid, the steps of grinding and beating the reaction materials in a vessel.l

heated to from 200 to 800 de rees -C.'by rapidly moving metal parts, of eeping the vessel free from caking by the materials `contained therein by slowly moving metal parts and retarding the too rapidly passing out of the finished products by a suitable dam, partially restricting the reaction vessel at the `outlet end.

In testimony HERMAN B. KIPPER.

whereof I afliX my signature.