DE281588C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- JVe 281588 CLASS 80 b. GROUP

OTTO KRANER in LEIPZIG-SCHÖNEFELD.

with or without fillers.

Patented in the German Empire on September 5, 1912.

That cement-like masses consisting of magnesium oxide and magnesium chloride are suitable are, even after being mixed with larger proportions of fillers, e.g. B. sawdust, Wood flour, asbestos, infusor earth, wool, hair, still in fairly firm masses to bind is known. The invention consists in that the wet, not pulverized beforehand existing catch material with chloride,

ίο whose water content corresponds to that of the Trapping material is set, mixed and used in itself for the production of Sorel cement As is known, only then is the oxide added. In the present proceedings it is not a question of the aforementioned Magnesia cement incorporating the catch material as a filler, rather than a substance, by which the cement is changed in such a way that it absorbs the fillers better and in greater proportions Absorbs shares than he is otherwise able to do.

This modification of the cement is carried out by

the peculiar, pliable binding material contained in the catch material enables its Properties of roughly intended special production in the same quality and cheapness not to be achieved, but only to be traced back to the cooking processes in paper manufacture are.

According to a known method, catch material should already be used in the manufacture of a paper stone slab Find use, but there is dried and then powdered Pa-. paper or trash used, not but, as in the present process, capture material in the state in which it is after The paper machine has bloodlots or has deposited as sludge in the collecting tank.

The wet catching material consists mainly of kaolin and sulphate of clay and to a lesser extent from fibers, partly from glue and others during manufacture binders commonly used in paper, the peculiarity of which is expressed in the fact that Even pieces made only from catch material, dried, have a certain toughness. A but the Dried catch material, powdered, mixed with water and dried again, that's the product no cohesion because the fabric has lost its cohesiveness. When exercising the present proceedings, however, will the highest value placed on the utilization of the binding power of the catching material. For products Like building boards, which should have a particularly high degree of toughness after drying, it is even useful to use the moist masses still have additional amounts of binding agent. substances, primarily of the type in the catch material to be added already contained, which most extensively by dissolving in the magnesium chloride solution to be added to the catch material happens. However, these measures are not in themselves new.

As with paper, the sizing closes the pores of the previously unsized paper, so in the case of the masses bound in with the catching material according to the invention, the catching material carries

Claims (1)

is essential for closing the pores of the hardening product, as a result its extraordinary suppleness much more than any other cement mass added mineral substance. The new method is z. B. carried out as follows: First, by drying average samples, the respective to be used Trap masses have been taken, the water content of the substance is determined, and afterwards to be able to calculate the amount of magnesium chloride to be added to the catch material, around its water by adding chlorine magnesium in chlorine magnesium solution to be able to convert the desired strength. In addition to the trapping material that has since been considered because of its binding power, it should also such still other types of paper, e.g. B. the particularly light tissue paper, or wetter Wood pulp is used as a filler for the purpose of recycling its fibers, so, of course, the water content of these substances must also be taken into account. Usually the water content of up to 80 percent of the catch material is too high high than that with him by the addition of commercially available magnesium chloride z. B. 26- and multi-degree Magnesium chlorine solutions are available in bulk. There are then solid or dried as an additive to the catch material Use magnesium chloride or solutions of these substances, which are stronger than the commercially available lye, taking care to ensure that they are used is that all the catching material was evenly distributed, whereupon it was also evenly with Chlorine magnesium is saturated. If it is desirable to keep the moisture content of the masses even lower, when it fails with the use of the above-mentioned chloromagnesium types, this will be the case brought about by partial evaporation of the water after thorough mixing. If the commercially available catch material is only used as a filler for the oxychloride cement mass, what is so good and so bad as it B. in the processing of stone wood masses into consideration Coming manual operation is common, happens, so is the evenness of the 'crowd not to achieve, which guarantees the processing described above, and the products become cracked, especially when larger amounts of that catch material are added. These capture material masses are therefore used for the production of products of uniform consistency and immutability, while using the new method, the mixture of capture material and Magnesium chlorine is perfectly uniform. In place of chlorine magnesium, substances can also be used that stand through the addition of water or other liquids in whole or in part to chlorine magnesium realize. Patent claims: Process for the production of artificial stone slabs and the like from the catch material of Paper, also asbestos paper production and oxychloride cement, as well as with fillers or without such, characterized in that the wet, not previously pulverized Previous catch material mixed with chloride, the water content of which is adjusted to that of the catch material only then in a manner known per se for the production of Sorel cement masses the oxide is added.