DE694408C - Method of storing and shipping bromine in solid form in metal containers - Google Patents

Description

Procedure for storing and shipping bromine in solid form In metal containers, it is well known that liquid bromine, because it attacks iron lakes very strongly, in bottles made of blue or semi-white thick glass with carefully ground Stopper of häch'stqns a 1 content stored and dispatched. This packaging is not only very cumbersome, but also so expensive above all that it lowers the price of bromine ; extremely loaded.

It has therefore already been proposed that bromine be used for packaging purposes to free the last traces of water in order to prevent the attack on iron z4 avoid. However, it has been shown that in this case - despite - the cumbersome predrying The bromine has a strongly water-attracting and easily meltable iron bromide layer is formed, whereby finite time a destruction of the iron container and its contamination of the bromine with iron is due. One has therefore gone over to to silver the ice containers, which, however, significantly reduces the packaging again becomes more expensive. In addition, in consideration of the liquid state of the bromine Containers of considerable strength are used.

It has now been found that bromine can be absorbed without any pretreatment can be stored and shipped cheaply and easily in metal containers, that one @es in the form of a multitude of. Bromine molecules contain, en-molecular compound used.

Such a solid molecular compound is known to arise z. B. by Addition of bromine to tetramethylammonium bromide, the starting compound ; takes up another 12 molecules of bromine. The mass finally contains 93% bromine. It is solid at ordinary temperature, has a very high bromine vapor pressure and melts only at about q.0 ° C. "A reaction with the container wall is therefore impossible. A large number of other known compounds behave in a similar manner, mainly Ammonium compounds and amines.

So far that has been. Tetram! Ethylammoni: umbromid r2 Br, by introducing it of gaseous Bromine; made on the bromide. It was found, that the molecular compound is also @dqrcli. Mixing the bromide with liquid Bromine forms, which is a great advantage for the filling, the storage and shipping container is.

For the method of the invention who yours. appropriately tight containers any size made of leaded iron sheet used. There. but there is no risk of breakage Is more important, containers of the lightest type can be used.

From such bromine barrels the bromine can be in quantities above 85% of the Filling weight can be recovered very easily by blowing in hot air or steam will. Pure bromine is obtained while the starting compound remains in the barrel and was used again and again to absorb bromine. It is this a significant technical and economic advantage because. so the starting compound belongs to the packaging. This will result in the introduction of hot air or water vapor very relieved that the molecular compound at Aden temperatures in question melts.

D, the container can correspondingly with one or more of the filling compound .through-penetrating tubes are equipped for the introduction of bromine, hot air or water vapor be.

The bromine can also be driven out by external heating.

It has already been suggested to make bromine more solid. Keep shape or to send @ that one converts it in bromine iron or of kieselguhr o., the like. soak up. Bromine can be any real chemical compound only through one special operation to split into bromine and iron. Bromine can only be extracted from diatomaceous earth can be obtained in vapor form. The kieselguhr also represents a considerable amount of deadness Weight that makes transport more expensive.

In contrast, the invention has the advantage that bromine without significant Additional load stored and shipped in solid form and simply by heating recovered in liquid form. can be. Of course: the molecular compound in many cases: can also be consumed as such, especially if that % Presence of the parent compound the 'economy and feasibility the 'planned bromine processing does not interfere. So it is; B. without further ado possible, the molecular compound; directly with silver nitrate or silver sulfate Implement silver bromide. The same is true of numerous other bromine salts and valuable ones organic bromine compounds.

The weight of the package can be increased by the method of the invention can be reduced by ten tenth of the previously required weight. -

Claims (3)

PATENT CLAIMS: i. Procedure for storing and sending Bromine in solid form in metal containers, characterized in that the bromine in Form of its solid molecular compound containing a large number of bromine molecules, how they z. B. by addition of bromine to ammonium or anünbromide, preferably from 12 molecules of bromine to 1 molecule of tetramethylammonium bromide are used will.. 2. The method make claim i, characterized in that .the container with his or more rollers dipping into the mass of the molecular compound Introducing bromine, hot air or steam. 3. Procedure according to claim i, characterized in that the molecular compound as a whole dem Intended use supplied and the container reloaded with molecular compound will. q. Method according to Claims i to 3, characterized in that. @ that the bromine by blowing in hot air or steam or by external heating in pure state is recovered, while .the starting compound in the container remains and is reloaded with bromine.