Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing silicoferrite-containing Al13 by utilizing aluminum ash slag

A technology for aluminum ash slag and ferrosilicon is applied in the field of preparing silicon-containing ferrosilicon polymerized thirteen aluminum, which can solve the problems of complex process, secondary pollution, and high cost, reduce environmental pollution, reduce aluminum residues, and increase the degree of polymerization. Effect

Inactive Publication Date: 2010-09-01
ZHEJIANG NORMAL UNIVERSITY
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The purpose of the present invention is to provide a simple process, less residue, low cost, pollution The method of preparing silicon-containing ferropolymerized thirteen aluminum with aluminum ash as raw material with few advantages

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0044] A kind of method that utilizes aluminum ash to prepare ferrosilicon-containing polythirteen aluminum, its preparation steps are: (1) Na 2 CO 3 Mix with aluminum ash in a mass ratio of 1:1.5; (2) place the mixture in a muffle furnace and burn it at 650 ° C for 1 h; (3) mix the roasted product with 3% HCl in a reaction kettle Acid leaching reaction, the leaching time is 6h; (4) The acid leaching product is subjected to solid-liquid separation through a filter, the separated precipitate and NaOH are mixed at a mass ratio of 1:0.4, heated and stirred at 82°C for 1.5h, and then Solid-liquid separation was carried out to obtain Na 2 SiO 3 The supernatant is ready for use; (5) with the pickling liquid AlCl 3 As a raw material, dropwise add alkaline immersion solution Na 2 SiO 3 , adjust the pH of the solution so that the pH of the solution is 3.0, thereby preparing the ferrosilicon-containing polythirteen aluminum products, wherein Al 13 The proportion of the total alumi...

example 2

[0046] The invention discloses a method for preparing ferro-silicon-containing polythirteen aluminum by using aluminum ash slag. Its preparation steps are: (1) Na 2 CO 3 Mix with aluminum ash at a mass ratio of 1:1.6; (2) place the mixture in a muffle furnace and burn it at 750°C for 0.5h; (3) mix the roasted product with 5% HCl in a reaction kettle Carry out the acid leaching reaction, the leaching time is 4h; (4) The acid leaching product is subjected to solid-liquid separation through a filter, the separated precipitate and NaOH are mixed at a mass ratio of 1:0.8, heated and stirred at 87°C for 1h, and then Solid-liquid separation was carried out to obtain Na 2 SiO 3 The supernatant is ready for use; (5) with the pickling liquid AlCl 3 As a raw material, dropwise add alkaline immersion solution Na 2 SiO 3 , adjust the pH of the solution so that the pH of the solution is 4.0, thereby preparing the ferrosilicon-containing polythirteen aluminum products, wherein Al 13 T...

example 3

[0048] The invention discloses a method for preparing ferro-silicon-containing polythirteen aluminum by using aluminum ash slag. Its preparation steps are: (1) Na 2 CO 3 Mix with aluminum ash in a mass ratio of 1:1.8; (2) place the mixture in a muffle furnace and burn it at 850°C for 1.5h; (3) mix the roasted product with 8% HCl in a reaction kettle Carry out the acid leaching reaction, the leaching time is 7h; (4) The acid leaching product is subjected to solid-liquid separation through a filter, the separated precipitate and NaOH are mixed at a mass ratio of 1:1.0, heated and stirred at 85°C for 0.5h, followed by solid-liquid separation to obtain Na 2 SiO 3 The supernatant is ready for use; (5) with the pickling liquid AlCl 3 As a raw material, dropwise add alkaline immersion solution Na 2 SiO 3 , adjust the pH of the solution so that the pH of the solution is 5.0, thereby preparing the ferrosilicon-containing polythirteen aluminum products, wherein Al 13 The proporti...

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
quality scoreaaaaaaaaaa
degree of polymerizationaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing silicoferrite-containing Al13 by utilizing aluminum ash slag, which belongs to the technical field of harmless and resourceful treatment of wastes. The method is completed as follows: the method for preparing the silicoferrite-containing Al13 by utilizing the aluminum ash slag comprises the following steps: (1) uniformly mixing aluminum ash with Na2CO3, then placing in a furnace for calcination, and obtaining off-white powder; (2) placing the off-white powder into a container, and then adding hydrochloric acid for carrying out acid leaching reaction; (3) carrying out solid-liquid separation on acid-leached products, and obtaining sediments and solution containing Fe3+ and AlCl3; (4) adding alkaline solution into the obtained sediments for carrying out reaction, carrying out the solid-liquid separation and obtaining the sediments and Na2SiO3 solution; and (5) adding the Na2SiO3 solution into the AlCl3 solution, uniformly mixing, regulating the pH of the solution and obtaining the silicoferrite-containing Al13. The method has the advantages of simple process, less residue, low cost and less pollution.

Description

technical field [0001] The invention relates to the technical field of harmless waste and resource recovery, and relates to a method for preparing silicon-containing ferropolymerized thirteen aluminum by using aluminum ash. technical background [0002] The research and development of polyaluminum chloride flocculants began in Japan in the late 1960s. Since then, many researchers in Europe, the United States, the former Soviet Union and other countries have carried out a lot of research and development work on its synthesis and preparation processes. There are a large number of patents and literature reports on dozens of polyaluminum chloride preparation processes and methods, which are commonly used as follows: [0003] 1. Production method using aluminum, activated aluminum oxide or aluminum ash as raw material [0004] The production process using aluminum, activated aluminum oxide or aluminum ash as raw materials includes acid-dissolving one-step method, alkali-dissolvi...

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): C02F1/52B01D21/01C01F7/56
Inventor 李小忠苏晓梅刘兴
Owner ZHEJIANG NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com