Unlock instant, AI-driven research and patent intelligence for your innovation.

Light heat-insulating nickel metallurgical waste slag foam ceramic and preparation method thereof

A technology of foam ceramics and light heat insulation, which is applied in the direction of ceramic products, ceramic material production, clay products, etc., can solve the problems of low porosity and high density, achieve the effect of small thermal conductivity, low density, and reduce water evaporation

Active Publication Date: 2019-10-01
YANCHENG INST OF TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN105601320A discloses a porous ceramic prepared by using magnesium-rich metallurgical nickel slag and its preparation method. By adding starch and activated carbon to make pores, a porous ceramic with high compressive strength and bending strength is obtained, but the density is relatively large, greater than 1500kg / m 3 , the porosity is low, less than 50%

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Light heat-insulating nickel metallurgical waste slag foam ceramic and preparation method thereof
  • Light heat-insulating nickel metallurgical waste slag foam ceramic and preparation method thereof
  • Light heat-insulating nickel metallurgical waste slag foam ceramic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The pottery of this embodiment comprises 76 parts of basic ceramic raw materials, 22 parts of foam and 2 parts of curing agent. The specific substances included in the three raw materials are shown in Table 1 below, wherein the specific content of the raw material groupings is relative to each of them.

[0025] The ceramic raw material of table 1 embodiment 1

[0026]

[0027] The preparation method of this ceramic comprises the steps:

[0028] (1) Nickel slag is crushed and ground through a 200-mesh sieve, and magnetically separated, the magnetic field strength is 5000Oe, and the nickel slag is collected after magnetic separation;

[0029] (2) Pour 20 parts of nickel slag, high alumina cement, kaolin, sodium hexametaphosphate and water after magnetic separation into a ball mill tank, and mix the mixture for 0.5 hours to obtain a uniformly mixed slurry;

[0030] (3) Sodium myristate, egg white, polyacrylamide and 88.2 parts of water were used to work for 5 minutes ...

Embodiment 2

[0037] The pottery of this embodiment comprises 76 parts of basic ceramic raw materials, 22 parts of foam and 2 parts of curing agent. The specific substances included in the three raw materials are shown in Table 2 below, wherein the specific content of the raw material groupings is relative to each of them.

[0038] The ceramic raw material of table 2 embodiment 2

[0039]

[0040]

[0041] The preparation method of this ceramic comprises the steps:

[0042] (1) Nickel slag is crushed and ground through a 200-mesh sieve, and magnetically separated, the magnetic field strength is 10000Oe, and the nickel slag is collected after magnetic separation;

[0043] (2) Pour 20 parts of nickel slag, high alumina cement, kaolin, sodium hexametaphosphate and water after magnetic separation into a ball mill tank, and mix the mixture for 0.5 hours to obtain a uniformly mixed slurry;

[0044] (3) Sodium phthalate monofatty alcohol ester, egg white, polyacrylamide and 88.2 parts of w...

Embodiment 3

[0050]The pottery of this embodiment comprises 76 parts of basic ceramic raw materials, 22 parts of foam and 2 parts of curing agent. The specific substances included in the three raw materials are shown in Table 3 below, wherein the specific content of the raw material groupings is relative to each of them.

[0051] The ceramic raw material of table 3 embodiment 3

[0052]

[0053]

[0054] The preparation method of this ceramic comprises the steps:

[0055] (1) Nickel slag is crushed and ground through a 200-mesh sieve, and magnetically separated, the magnetic field strength is 10000Oe, and the nickel slag is collected after magnetic separation;

[0056] (2) Pour 20 parts of nickel slag, high alumina cement, kaolin, sodium hexametaphosphate and water after magnetic separation into a ball mill tank, and mix the mixture for 0.5 hours to obtain a uniformly mixed slurry;

[0057] (3) Sodium α-olefin sulfonate, egg white, polyacrylamide and 88.2 parts of water were used t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
densityaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a light heat-insulating nickel metallurgical waste slag foam ceramic and a preparation method thereof. The ceramic comprises a basic ceramic raw material, a curing agent and afoam body; the basic ceramic raw material comprises nickel slag, high-alumina cement, kaolin, sodium hexametaphosphate and water, and the foam body comprises a foaming agent, a foam stabilizer and water. The preparation method comprises the steps of during preparation, carrying out ball milling and mixing on the nickel slag, the high-alumina cement, the kaolin, the sodium hexametaphosphate and thewater first after magnetic selection to obtain pulp; then, mixing the foaming agent, the foam stabilizer and the water to obtain the foam body; finally, mixing and stirring the pulp, the foam body and the curing agent, and performing demolding, drying and calcining to obtain the foam ceramic. The foam ceramic not only is equal in pore size and uniform in distribution but also has low density, high compression resistance, a small heat conductivity coefficient and good heat preservation performance; meanwhile, the preparation method is simple, capable of saving energy, environmentally friendlyand industrially applicable.

Description

technical field [0001] The invention belongs to the field of ceramic preparation, in particular to a lightweight heat-insulating nickel metallurgical waste slag foam ceramic and a preparation method thereof. Background technique [0002] Ceramic foam is a porous ceramic material with a three-dimensional structure. Ceramic foam has high porosity, high strength, good sound and heat insulation performance, and stable chemical properties. It is widely used in metallurgy, aerospace, automobiles and other fields, and can be used as heat insulation, insulation, and catalyst carrier. , filters, etc., the application prospect is very broad. [0003] There are many processes for preparing foam ceramics, mainly including adding pore-forming agents, foaming process, organic foam impregnation method, sol-gel method, extrusion molding and so on. Among them, the foaming process and the addition of pore-forming agents are widely used. The foaming process refers to adding a foaming agent t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B33/138C04B33/13
CPCC04B33/1305C04B33/131C04B33/138C04B38/106C04B2235/447C04B2235/449C04B2235/9607Y02P40/60
Inventor 吴其胜陈秋静黄子宸诸华军杨涛朱宝贵顾斌
Owner YANCHENG INST OF TECH