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Ferronickel residue light ceramsite and preparation process thereof

A technology of lightweight ceramsite and nickel-iron slag, which is applied in the field of lightweight ceramsite, can solve the problems of low industrial utilization of nickel-iron slag, achieve the effects of reducing production costs, promoting depolymerization, and saving energy

Inactive Publication Date: 2020-04-03
GUANGDONG TSINGDA TONGKE ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention is to provide a kind of ferronickel slag lightweight ceramsite to solve the problem of low industrial utilization of ferronickel slag in the prior art

Method used

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  • Ferronickel residue light ceramsite and preparation process thereof
  • Ferronickel residue light ceramsite and preparation process thereof
  • Ferronickel residue light ceramsite and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The nickel-iron slag lightweight ceramsite in this embodiment, based on the total amount of raw materials for the preparation of the ceramsite, includes the following raw material components in mass content:

[0035]

[0036]

[0037] Such as figure 1 The process flow diagram shown, the preparation method of nickel-iron slag lightweight ceramsite described in this embodiment comprises the following steps:

[0038] (1) get selected amount of described ferronickel slag (particle size is less than 150 μ m, sieve residue≤10%), activator and suspending agent mix, and add the water that accounts for 30wt% of ferronickel slag quality, place ball mill And add ceramic balls as grinding balls for mechanical activation, the time is 4h;

[0039] (2) The activated mixture is subjected to static sedimentation treatment, and the solid particles are collected after solid-liquid separation through filtration; the separated water can be used for recycling and adding to the mechani...

Embodiment 2

[0043] The nickel-iron slag lightweight ceramsite in this embodiment, based on the total amount of raw materials for the preparation of the ceramsite, includes the following raw material components in mass content:

[0044]

[0045] Such as figure 1 The process flow diagram shown, the preparation method of nickel-iron slag lightweight ceramsite described in this embodiment comprises the following steps:

[0046] (1) get selected amount of said ferronickel slag (particle size is less than 150 μ m, sieve residue≤10%), activator and suspending agent are mixed, and add the water that accounts for 33wt% of ferronickel slag quality, place in ball mill And add ceramic balls as grinding balls for mechanical activation for 4 hours;

[0047] (2) The activated mixture is subjected to static sedimentation treatment, and the solid particles are collected after solid-liquid separation through filtration; the separated water can be used for recycling and adding to the mechanical activati...

Embodiment 3

[0051] The nickel-iron slag lightweight ceramsite in this embodiment, based on the total amount of raw materials for the preparation of the ceramsite, includes the following raw material components in mass content:

[0052]

[0053] Such as figure 1 The process flow diagram shown, the preparation method of nickel-iron slag lightweight ceramsite described in this embodiment comprises the following steps:

[0054] (1) get selected amount of said ferronickel slag (particle size is less than 150 μ m, sieve residue≤10%), activator and suspending agent are mixed, and add the water that accounts for 38wt% of ferronickel slag quality, place ball mill And add ceramic balls as grinding balls for mechanical activation for 5 hours;

[0055] (2) The activated mixture is subjected to static sedimentation treatment, and the solid particles are collected after solid-liquid separation through filtration; the separated water can be used for recycling and adding to the mechanical activation ...

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Abstract

The invention belongs to the technical field of ceramsite processing, particularly relates to light ceramsite prepared by taking ferronickel residue as a raw material, and further discloses a preparation process of the light ceramsite. According to the ferronickel residue ceramsite of the invention, ferronickel residue is used as a raw material, the effects of a binding agent, a cosolvent, a pore-forming agent, a suspending agent and an active agent are assisted, and the performances of various raw material components are matched and mutually promoted, so that the high-proportion utilization degree at the ferronickel residue adding amount of 80-95 wt% is achieved, the prepared ceramsite is light, the cost of all the additives is low, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of ceramsite processing, specifically relates to a lightweight ceramsite prepared from ferronickel slag, and further discloses a preparation process thereof. Background technique [0002] Ferronickel slag is industrial waste slag produced in the process of smelting nickel-iron alloy or extracting metallic nickel from laterite nickel ore. With the gradual expansion of the scale of nickel-iron alloy in my country, the discharge of ferronickel slag is also increasing year by year. According to reports, in recent years, the annual discharge of ferronickel slag in my country has exceeded 30 million tons, and it has become the fourth largest smelting slag in my country after iron slag, steel slag and red mud. At present, the treatment methods of large-scale ferronickel slag are mainly stacking or deep-sea landfill, which not only occupies land, pollutes the environment, but also poses severe challenges to the deve...

Claims

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Application Information

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IPC IPC(8): C04B38/08C04B33/138C04B33/13C04B33/32C04B38/06
CPCC04B33/13C04B33/138C04B33/32C04B38/009C04B38/0645C04B38/0675C04B38/08C04B2235/3472C04B2235/447C04B2235/77C04B2235/96C04B38/0067Y02P40/60
Inventor 窦明岳张宏生王光
Owner GUANGDONG TSINGDA TONGKE ENVIRONMENTAL PROTECTION TECH CO LTD
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