Composite modified dust mud kiln residue superfine powder for rubber filler, and preparation method thereof

Abstract

The invention discloses composite modified dust mud kiln residue superfine powder for a rubber filler, and a preparation method thereof, and belongs to the field of recycling of metallurgical solid waste resources, wherein the composite modified dust mud kiln residue superfine powder comprises a composite grinding aid-pore-forming modifier, a composite surface modification active agent, water anddust mud kiln residue. In the prior art, the main fillers carbon black and white carbon black in the existing rubber industry are high in price, and production pollutes the environment; dust mud kilnresidue as solid waste is difficult to utilize, and has low additional value; the iron content in the dust mud kiln residue is high so as to cause poor grindability; and the dust mud kiln residue belongs to an inorganic matter, so that the agglomeration is easily generated after the dust mud kiln residue replacing carbon black and the white carbon black is directly added into a rubber, and the dust mud kiln residue and the rubber are poor in inorganic interface-organic interface compatibility. According to the invention, the problems in the prior art are solved, the problem of high prices of main fillers carbon black and white carbon black in the rubber industry is solved, the recycling of metallurgical wastes is achieved, the benefit increase of enterprise is promoted, the cost of the rubber product industry is reduced, and the current industrial development requirements of energy saving, environmental protection and circular economy are met.

Description

technical field [0001] The invention belongs to the field of recycling of metallurgical solid waste resources, and in particular relates to a composite modified dust mud kiln slag superfine powder used for rubber fillers and a preparation method thereof. Background technique [0002] Dust mud kiln slag is metallurgical solid waste produced after zinc oxide rotary kiln processes zinc-containing intermediate materials, and its main chemical composition is Fe 2 o 3 , CaO, SiO 2 , showing alkaline. At present, a large amount of open-air storage of dust, mud and kiln slag not only takes up valuable land, but also pollutes the surrounding environment and groundwater. Therefore, how to use dust, mud and kiln slag efficiently on a large scale to reduce the environmental burden and increase the efficiency of enterprises is an urgent problem to be solved. [0003] As a widely used polymer material, rubber requires a large amount of fillers to improve its mechanical properties, pro...

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Problems solved by technology

[0004] In order to solve the problem that the price of the main filler carbon black and white carbon black in the existing rubber industry is high, and the production pollutes the environment; the dust sludge kiln slag is not only difficult to use as solid waste, but also has low added value; the dust sludge kiln slag The problem of poor grindability due to the high iron element in the medium; and the dust sludge kiln slag is an inorganic substance, and it is directly added to the rubber after replacing carbon black and white carbon black. The problem of poor compatibility of organic interface

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