CS257064B1 - Method of treatment of solid amorphous wastes from organic production - Google Patents

Abstract

The solution concerns the method of treating solid amorphous waste from organic production into a bulk product. Solid amorphous waste from organic production, containing 30 to 70% by mass. of the liquid final product is homogenized at a temperature of 20 to 80 °C for 15 to 60 minutes with an inorganic carrier, preferably with silicon dioxide, with a mutual mass ratio of inorganic carrier to waste of 1:2 to 20.

Description

The present invention relates to a process for the treatment of solid amorphous wastes from organic production into a bulk product which can be disposed of.

The disposal of waste materials is one of the pressing technical problems of modern industries. Practice shows that the most viable way to dispose of waste material is to incinerate it in suitable incineration plants. For some materials, especially waste from the chemical industry, this is the only problem-free method of disposal.

In practice, the production of stabilizers for polymeric materials (e.g. based on subst. Diphenylamines, phosphites, etc.) as well as various edible oils, etc., takes place under the catalytic action of inorganic catalysts such as e.g. bleaching clay. After filtering off the product, the inorganic fraction (so-called filter cake) remains in the form of a sticky to sintered amorphous mass containing 30 to 70% by weight of the org. podlelu.

Methods for disposing of gaseous, liquid and solid wastes by incineration of the wastes themselves, respectively, are known. mixed with combustible substances (M. Rybin - Combustion of fuels and combustible wastes in fireplaces of industrial boilers, Prague, SNTL 1985). .

The disadvantage of using the classic method of disposal of solid waste (filter cake) by incineration is its unsuitable consistency, not allowing use of available incineration equipment (by the fact that the organic matter burns only on the surface of waste from operation). At the same time, waste disposal by storage in landfills chem. waste is also out of the question of quantity, transport complications and environmental protection.

Said drawbacks can be overcome by treating solid amorphous wastes from organic productions into a bulk product as a processable form of waste according to the invention.

The principle of the invention is that solid amorphous organic waste containing 30 to 70 wt. of the liquid final product, is allowed to homogenize with an inorganic carrier at a temperature of from 20 to 80 ° C for 15 to 60 minutes at a weight ratio of inorganic carrier to waste of 1: 2 to 20 relative to each other.

It has been found to be advantageous to use silicon dioxide as the inorganic carrier. Said treated waste is a homogeneous, free-flowing, non-dusting powdered material suitable for further use and recovery, in particular by incineration.

An advantage of the process of treating organic waste according to the invention is the elimination of the unprocessability and tackiness of the waste, which facilitates transport and handling of the obtained material.

The given method of treatment is readily feasible in the available machinery-technological equipment common for chemists. and processing. industry. Requirements for consumption of other suroxins ^ for waste treatment (filter, cake) in order to achieve a favorable consistency, they are minimal in terms of both quantity and price. The treated waste allows its easy disposal by incineration (the organic part is removed and the harmless inorganic residue can be dispersed in nature or used as a filler for undemanding applications.

In addition, there is a reduction in the cost of conventional toxic waste disposal in specially constructed landfills.

The recovery of solid waste according to the invention and its subsequent disposal represent a progressive solution, characterized by a significant environmental benefit.

The following examples illustrate but do not limit the invention.

Example 1

A filter cake from the production of an aralkylated diphenylamine based amine stabilizer containing 50% by weight of the inorganic phase was metered at 350 g together with 150 g of kaolin into the chamber of a two-arm mixer. Homogenization was carried out for 20 minutes at 60 ° C. The resulting product was a non-dusty, brown-black homogeneous powder.

Example 2

The waste from the production of the amine stabilizer after washing with a mixture of liquid high boiling aromatics, hydrocarbons, containing 65% by weight of the inorganic phase, was fed in an amount of 500 g together with 50 g of active silica into the mixing device chamber. Homogenization is carried out for 60 minutes at 20 ° C. The resulting product was a non-dusty brown-black homogeneous powder. . .

Example 3

The waste according to Example 1, containing 61% by weight of inorganic compounds. % of the silica was fed in an amount of 450 g per 30 g of active silica together with the mixing device chamber. Homogenization was carried out for 20 minutes at 80 ° C. The resulting product was a non-dusting, gray, homogeneous powder.

Example 4

A filter cake from the production of an aralkylated phenol-based phosphite stabilizer, containing 55% by weight of the inorganic phase, was metered in an amount of 500 g together with 50 g of active silica into a mixing chamber. Homogenization was carried out at 60 ° C for 40 minutes. The resulting product was a gray, homogeneous powder in a non-dusting treatment.

Example 5

The waste from the refining of rapeseed, sunflower oil, containing 45% by weight of the inorganic fraction, was fed in an amount of 480 g per 60 g active silica into a mixing chamber. Homogenization was carried out at 50 ° C for 30 minutes. The resulting product was a homogeneous yellowish powder in a non-dusting treatment;

Claims (1)

OBJECT OF THE INVENTION Process for treating solid amorphous wastes from organic production to a bulk product, characterized in that solid amorphous wastes from organic production containing 30 to 70% by weight of the liquid final product at 20 to 80 ° C for 15 to 60 minutes are homogenized with inorganic a carrier, with silica, at a weight ratio of inorganic carrier to waste of 1: 2 to 20 relative to each other.