DE426762C - Process for the production of plastic masses, especially for tar macadam - Google Patents

Description

Process for the production of plastic masses, especially for tar macadam. In the patent _1.25216 a method is described, used gas mass to use for the vulcanization of tar, pitch, oils etc., whereby plastic masses arise which, among other things, suitable for making tar macadam.

There are two difficulties in performing this procedure.

One difficulty lies in the fact that the gas mass is a is not very comfortable material for transport. It is very dusty and has a bad smell and even tends to self-ignite.

The second difficulty which arises in carrying out the above The process set consists in that during heating for vulcanization usually a strong foam formation occurs, which is easily annoying and can cause dangerous overcooking of the mass. This foam formation is based on the interaction of the most diverse causes. Once the gas mass contains an alternating one Amount of iron sulphide, which is mixed with the acidic components of the tars used and oils react in the heat to release gaseous hydrogen sulfide. Further contains gas mass, finally used gas mass, changing and possibly very considerable amounts of water. which naturally as steam when heated get free. Thirdly, as a highly dispersed material, gas mass contains certain amounts adsorbed gases which are released during use.

It has now been found that both difficulties turn out to be quite surprising can be easily eliminated by the fact that the gas mass is advantageous on site their occurrence with small amounts (e.g. 10 to 20 percent) tar, anthracene oil or the like mixed. It is particularly advantageous here to use the resulting mixture to be heated to 100 to 150 ° C. It then arises depending on a crumbly up solid mass, which can be handled easily and dust-free and, for example Pressed to form blanks, allows extremely comfortable and safe work.

If the gas mass only z. B. treated in a pan mill with anthracene oil then it is only the unpleasant dust and the tendency to spontaneous combustion as well as the tendency to attract water. This mixture is also heated in the manner described, then the adsorbed water, the last remnants of the adsorbed gases and the bulk of what otherwise arises Removed hydrogen sulfide.

In both cases, the material no longer causes any difficulties, if it is in the manner described in the main patent with larger amounts of oil, tar etc. through Heating is processed on plastic masses.

i. Embodiment.

100 kg of gas mass are on a pan mill with 20 kg of anthracene oil mixed. The resulting intermediate product is no longer self-igniting and not dusting. - It can be loose or pressed into bricks without difficulty be shipped.

Io kg of such bricks are melted together with 500 kg of generator tar after adding the appropriate amount of gravel and sand, one for road construction suitable tarmac.

2nd embodiment.

100 kg of gas mass "-ground worked through with 15 kg of generator set and Heated to r4o ° .G, whereupon water vapor and foul-smelling gases escape. The emerging The mass is pressed warm to form moldings. These briquettes are practically anhydrous, not self-igniting and easy to ship.

100 kg of such bricks are made with 300 kg of lignite generator tar and the corresponding amount of sand and gravel processed into tar macadam in the heat. No foaming occurs here.

Claims (2)

PATENT REQUESTS: experienced for the production of plastic masses, in which tar, pitch, 01, t: umaron resin and similar substances as well as gas mass are contained, according to patent ..1.25216, characterized in that the gas mass with relatively small amounts of 01, tar or the like. dgl._zu = an easily transportable intermediate product is mechanically processed. 2. Embodiment of the method: according to claim i, characterized in that the intermediate product is heated to 100 to 150 ° C.