SU675027A1 - Raw mix for making claydite - Google Patents

Description

one

The invention relates to the production of building materials, in particular to the production of expanded clay used as a filler in the production of lightweight concrete.

The known raw material mixture for the manufacture of expanded clay, including (wt.%) 95.5-98 clay and 2-4.5 organomineral additives 1. As an organo-mineral additive, polymers 7 are burdensome wastes of the regenerator of the benzene chemical recovery coke production oil. This blend is closest to the invention.

However, it has insufficient strength.

The purpose of the invention is to increase the strength of the mixture.

This is achieved by the fact that the raw mix, including clay and organic-mineral additive, contains as an additive the lime-neutralized production waste of ion-exchange RESINS of the following composition,%. CaS04 (MgS04) 25-30 Fe (OH) z0.3-0.6

AC (OH); 1.3-1.8

SiOg.1,5-2,4

. Organic, in terms of coal. genus 0.5-1.0. Water Else and waste production plastmassspry the ratio of waste 3: 1-4: 1 with the following content of components,

o wt.%:

Gpnna90-95

Organ-Mineral Supplement 5-10

s The first component of the additive is sludge from the neutralization of the acidic production of ion-exchange resins. This schlam is used as the main component of the additive. is he

0 contributes to the improvement of the plasticity of the mixture and the strength of expanded clay.

The second component of the additive, waste from the production of plastics, is a mixture of textolite struc tures and OPILOC, as well as plastic chips. Textolite chips and sawdust are obtained during the processing of the PCB. Plastic chips are formed as waste during processing.

0 plastic products, obtained on the basis of phenoglobal formaldehyde resins Razyery particles of the second component, addition of 0.5-5 mm. Waste from the production of plastics introduces into the mixture as an organic additive that burns out in the process of burning granules of expanded clay and helps reduce its bulk density. Before the introduction into the clay both components of the additive are mixed with each other in a ratio of 3: 1 - 4: 1. Both components of the additive are non-toxic. PRI me R. Take 900 g of lime-neutralized waste from the production of ion-exchange resins, which represent a viscous fine-dispersed thick mass with a content of com- i 2.0 Organics,. in terms of carbon1.0Water Else. 4 Mix the mass for 10 minutes at room temperature in a laboratory blender with 300 g of textolite shavings and sawdust, as well as plastic chips (textolite chips, sawdust and plastic chips can be taken at a ratio of each other). The clay is mixed with the previously prepared additive for 10-15 minutes,. granulate and burn the granules in a tube furnace at a temperature of 1200-1250 ° C for 10-12 minutes. The finished product is cooled, discharged and tested by conventional methods. The resulting claydite has a bulk density of 430 kg / m and a compressive strength in the cylinder of 25 kg / cm. Qualitative indicators of expanded clay, made from the proposed mix with a different ratio of components of the additive, are shown in the table.