PL4809B1 - A method of producing a binder for the production of briquettes. - Google Patents

Description

So far, coal tar, glue, resin or similar materials have been used for the production of briquettes and artificially produced spherical lumps of coal. Nerals, gives little ash. The binder of the glue, the production of which is not limited in any way, has the disadvantage that it does not withstand the action of water and molds over time. In addition to the ground, it gives a lot of ash, because gypsum is added to this binder to increase the cohesion. Attempts have been made to reduce the amount of resin as a binder, but using more of them is prevented by a high price. This also applies to resins obtained from petroleum tar. Apart from the use of petroleum tar itself, which is cheap and has no major application, is unsuitable, because due to its viscosity, it cannot be finely divided. In the present invention, it is used as a binder for Usually solid fuels (coal, sawdust, cork and similar materials) mixtures of dehydrated, oil-free mineral tar with mineral resins, vegetable or synthetic, or only with unpurified petroleum tar, not without resin, when mixed If it is made, it is desirable to pour it into cold water, which makes it grainy and very hard. The binder thus obtained has the same advantages as gas tar, but is cheaper. The binder can be mixed in any suitable manner. If it is granular, it will better distribute in fine wool or other fuel. It does not need to be milled beforehand, which is necessary with common tar. The binder is prepared from the tar which, to remove the oil, is dehydrated and distilled under low pressure (with a mercury pressure of 5 to 6 cn2) and at a temperature of 150 ° to 200 ° C. By distilling crash bars at low glare, pyrogenization is prevented as well as carbon build-up in the binder; outside the ground, less carbon is used in this distillation. Later, dissolved or unrefined petroleum tar is added to the tar. For 100 kg of tar, you can also add, for example, 50 to 100 kg of naift simola and 5 to 10 kg of resin. The resins, and thus the binder, obtain greater hardness when the free acids they contain are washed out by adding non-alkaline or alkaline earth salts, namely, burnt magnesia, quicklime or table salt in an approximately 1: 100 ratio. After the saponification of the resin, the tar becomes more fluid and melts at lower temperatures. When the mixture is molten, it is shaken mechanically or otherwise to make it more uniform. The binder is then poured into molds or into cold water. In the latter case, the binder is fed to a sprayer, from which it drips in thin streams into good water, where it becomes granular. Of course, within the scope of the invention, tar with hard coal, stearic tar, cotton tar, resin tar, bitumen, asphalt or the like. PL

Claims (6)

Patent claims. 1. A method for producing a binder for the production of briquettes, characterized by consisting of a mixture of dehydrated and oil-free tar and resin materials. 2. In accordance with claim A method according to claim 1, characterized in that the resin material is a plant, mineral or synthetic resin. 3. Method according to the provisions The resin material of claim 1, wherein the resin material is unpurified petroleum tar, not free of resin. 4. The method according to p. The method of claim 1, wherein the resin material is a mixture of vegetable, mineral or synthetic resins and crude petroleum tar. 5. Way according to occur. 1 - 4, tern that is dehydrated and distilled tar contaminated, usually under reduced pressure, is mixed with molten resin materials (resins or crude oil tar or both materials mixed) with the addition of with or without the addition of alkali metal or alkaline earth metal salts to saponify the free acids found in the resins. 6. The method according to the occurrence. 5, alternating the mixture so that the resulting mixture is poured into thin streams of water to granulate and harden. Isidore Brun. Deputy: S. Pawlikowski, patent attorney. Print by L. Boguslawski, Wariitwi. PL