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Ferrochromium slag-red mud composite rubber filler with flame retardant and reinforcement performance

A technology for compounding rubber and ferrochromium slag is applied in the field of solid waste resource recycling, which can solve the problems of poor compatibility, single performance, high prices of filler carbon black and silica, and achieve the effect of promoting efficiency and reducing costs.

Inactive Publication Date: 2019-02-15
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the price of carbon black and white carbon black, the main fillers in the existing rubber industry, is relatively high and their properties are single, that is, they only have reinforcing properties. When ferrochrome slag and red mud are directly added to rubber, they are prone to agglomeration, and ferrochrome slag-red mud The problem of poor compatibility between the mud-inorganic interface and the rubber-organic interface, the present invention provides a ferrochrome slag-red mud composite rubber filler with flame-retardant and reinforcing properties, in order to solve the above problems

Method used

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  • Ferrochromium slag-red mud composite rubber filler with flame retardant and reinforcement performance
  • Ferrochromium slag-red mud composite rubber filler with flame retardant and reinforcement performance
  • Ferrochromium slag-red mud composite rubber filler with flame retardant and reinforcement performance

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Experimental program
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Effect test

Embodiment 1

[0020] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0021]

[0022] The mass ratio of oxalic acid dihydrate to phosphoric acid in the normal temperature surface pore-forming mixed solution is 1:1, oxalic acid dihydrate is analytically pure, and phosphoric acid is analytically pure; in the surface modifier mixed solution, silane coupling agent KH570 and silane The mass ratio of coupling agent KH550 is 1:3, the silane coupling agent KH570 is industrial pure, and the silane coupling agent KH550 is industrial pure; the mass ratio of absolute ethanol and acetone in the dehydrated alcohol-acetone mixed solution is 2 : 1, absolute ethanol is analytically pure, and acetone is analytically pure; the particle diameter of the ferrochrome slag is 4.8 μm~110.7 μm, and the chemical composition (mass fraction) is SiO 2 (34.54%), Fe 2 o 3 (5.95%), Al 2 o 3 (23.88%), CaO (0.33%), MgO (25.43%), Cr 2 ...

Embodiment 2

[0025] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0026]

[0027]The mass ratio of dihydrate oxalic acid and phosphoric acid in the normal temperature surface pore-forming mixed solution is 3:1, dihydrate oxalic acid is analytically pure, and phosphoric acid is analytically pure; in the surface modifier mixed solution, silane coupling agent KH570 and silane The mass ratio of coupling agent KH550 is 2:1, and silane coupling agent KH570 is technically pure, and silane coupling agent KH550 is technically pure; : 2, dehydrated alcohol is analytically pure, and acetone is analytically pure; The particle diameter of described ferrochrome slag is 5.2 μ m~110.3 μ m, and chemical composition (mass fraction) is SiO 2 (35.27%), Fe 2 o 3 (7.26%), Al 2 o 3 (24.03%), CaO (0.38%), MgO (23.68%), Cr 2 o 3 (6.89%), SO 3 (0.092%), P 2 o 5 (0.037%) and others (2.361%). The chemical composition (...

Embodiment 3

[0030] Taking the preparation of product 100g of the present invention as an example, the components used and their mass proportions are:

[0031]

[0032] The mass ratio of dihydrate oxalic acid to phosphoric acid in the normal temperature surface pore-forming mixed solution is 1:2, dihydrate oxalic acid is analytically pure, and phosphoric acid is analytically pure; in the surface modifier mixed solution, silane coupling agent KH570 and silane The mass ratio of coupling agent KH550 is 1:1, and silane coupling agent KH570 is technically pure, and silane coupling agent KH550 is technically pure; : 1, absolute ethanol is analytically pure, and acetone is analytically pure; the particle diameter of the ferrochrome slag is 5.0 μm~100.9 μm, and the chemical composition (mass fraction) is SiO 2 (35.62%), Fe 2 o 3 (6.53%), Al 2 o 3 (24.32%), CaO (0.41%), MgO (24.95%), Cr 2 o 3 (7.05%), SO 3 (0.081%), P 2 o 5 (0.031%) and other (1.008%). The chemical composition (mass fr...

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Abstract

The invention discloses ferrochromium slag-red mud composite rubber filler with flame retardant and reinforcement performance and belongs to the field of resource recycling. The ferrochromium slag-redmud composite rubber filler comprises a normal-temperature surface pore-forming mixed solution, a surface modifier mixed solution, an absolute ethyl alcohol-acetone mixed solution, ferrochromium slagand red mud. The normal-temperature surface pore-forming mixed solution consists of oxalic acid dihydrate and phosphoric acid; the surface modifier mixed solution consists of a silane coupling agentKH570 and a silane coupling agent KH550; the particle size of the ferrochromium slag is 4.2-113.8 mu m. The problems that in existing rubber industry, main filler including carbon black and white carbon black is higher in price and single in function and only has reinforcing performance, ferrochromium slag-red mud aggregates very easily after being directly added to rubber and the compatibility ofinorganic interfaces of ferrochromium slag-red mud and organic interfaces of rubber is poorer are solved, and high-added-value recycling of industrial waste is realized.

Description

technical field [0001] The invention belongs to the field of recycling of solid waste resources, and in particular relates to a ferrochrome slag-red mud composite material used for flame-retardant and reinforced rubber fillers and a preparation method thereof. Background technique [0002] Ferrochrome slag is chromium-containing waste slag produced when chromium-containing ferroalloys are smelted by pyrometallurgy. It is mainly produced when high-carbon ferrochrome is smelted by submerged arc furnace method. Its main chemical composition is SiO 2 , Fe 2 o 3 、Al 2 o 3 , CaO, MgO, Cr 2 o 3 , SO 3 ,P 2 o 5 etc., where Al 2 o 3 And the content of MgO is higher. Red mud is the waste residue produced in the alumina production process, and its main component is SiO 2 , CaO, Fe 2 o 3 、Al 2 o 3 、Na 2 O, TiO 2 、K 2 O, etc., also contains caustic soda components and trace non-ferrous metals, among which Al 2 o 3 And the content of CaO is higher. At present, the ut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/22C08K3/36C08K3/32
CPCC08K3/22C08K3/32C08K3/36C08K2003/2206C08K2003/222C08K2003/2227C08K2003/2251C08K2003/2272C08K2003/329
Inventor 刘秀玉张冰孙轶民张浩唐刚黄新杰
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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