SU40571A1 - The method of obtaining mineral-bituminous products - Google Patents

Description

During sweeping and high-temperature distillation of shale, as well as during the extraction of thermally treated shale within 360-400 ° with organic solvents, the organic part of the shale from the mineral part more or less separates.

However, for a number of practical cases, a very homogeneous mixture of the mineral part and pitch or bituminous is required, which has different melting rates depending on the area of its application, such as, for example, the rubber industry, for road construction. roofing varnish and varnishes for other industrial purposes.

Since shale is a very homogeneous system from a highly dispersed mineral part and an organic part, it is quite expedient to use shale as the basis for the production of bituminous products containing a significant amount of mineral part.

The literature describes a method for producing such mineral-bituminous products by heating a mixture of a shale resin (germ. Pat. JN 496639).

The way is that the slate is mixed with any depec (wood, peat, slate, stone or brown) (152)

coal) or petroleum products or a mixture of them or their products of distillation. The mixture composed in one way or another is heated without air access to 360-400 ° for 2-3 hours.

Depending on the amount and nature of the organic material admixed to the shale, there are a number of products that differ in their fphico-chemical properties within very wide limits. For example, wood tar gives the mass an extremely high viscosity and tack, while oil tar significantly reduces viscosity. Peat and coal tar in this respect occupy an intermediate place between wood tar and oil distillation products. Thus, depending on the field of practical application, it is possible to vary the properties of the products obtained over a wide range.

According to the present invention, a somewhat modified method of producing mineral-bituminous products is proposed, namely, the process of obtaining mineral-bituminous products is divided into two stages.

In the first stage, the slate is heated without air, at 360-400 °, and in the second stage, the heat-treated slate is fusion with any tar

kln oil product. In this case, the Hygiven does very quickly at 150-200.

In the latter case, a product is obtained consisting of the ash part of the shale, uniformly distributed in tar and slate bitumen. This goal is achieved by the fact that "heating of tar is carried out with bituminous shale, i.e., it has been previously decomposed at high temperatures. Tar easily extracts bitumen from decomposed shale, and the remaining ash from the ash — in the form of boyish dust — is distributed in the resulting tar tar with soilsand bitumen.

The subject matter of the invention.

The method of producing mi- cropetized-bitumen products by heating a mixture of resin (chamois, peat, wood, etc.) with shale, characterized in that the shale is preheated to 360-400 ° without air, and then mixed with the resin and heated to 150-200 °.