CN102583470A - Preparation method of homogeneous bauxite applicable to smelting of brown fused alumina - Google Patents
Preparation method of homogeneous bauxite applicable to smelting of brown fused alumina Download PDFInfo
- Publication number
- CN102583470A CN102583470A CN2012100683042A CN201210068304A CN102583470A CN 102583470 A CN102583470 A CN 102583470A CN 2012100683042 A CN2012100683042 A CN 2012100683042A CN 201210068304 A CN201210068304 A CN 201210068304A CN 102583470 A CN102583470 A CN 102583470A
- Authority
- CN
- China
- Prior art keywords
- bauxitic clay
- homogeneous
- crushed
- bauxite
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a preparation method of homogeneous bauxite applicable to smelting of brown fused alumina. The preparation method is characterized by comprising the steps as follows: firstly, bauxite containing 65% to 69% of Al2O3 and bauxite containing 70% to 72% of Al2O3 are crushed to be less than or equal to 30 mm, roasted to 1000 DEG C in a rotary kiln for 2 hours, cooled and then crushed to be less than or equal to 0.074 mm; secondly, the crushed bauxite containing 65% to 69% of Al2O3 is screened, and the part which is 240 mesh to 0.074 mm is taken as material A for standby; thirdly, the crushed bauxite containing 70% to 72% of Al2O3 is screened, and the part which is 325 mesh to 0.074 mm is taken as material B for standby; fourthly, the materials A and B are intensively mixed and uniformly stirred according to the proportion of 1:1, and then are placed in a flour milling machine to produce the homogeneous bauxite which is less than or equal to 200 mesh; and fifthly, the homogeneous bauxite is shaped, roasted to 1150 DEG C in a tunnel kiln for 3 hours, cooled, and crushed to 30mm to 1mm to obtain a raw material finished product.
Description
Technical field
The present invention relates to a kind of preparation method who is applicable to bauxitic clay palm fibre corundum smelting homogeneous material.
Background technology
China's Aluminum alumina resource is middle low grade ore more than 70%, and few part is a high grade ore.For many years, aluminium industry, refractory materials, high-alumina cement, petroleum fracturing propping agent, brown corundum smelting are used the higher-grade bauxitic clay more, and supply falls short of demand to cause high grade ore, and a large amount of fine ores, face ore deposit and middle low grade ore are by idle.The ripe ore deposit of the bauxitic clay calcining industry at the brown corundum smelting upper reaches still generally adopts shaft furnace calcining bauxitic clay lump ore, causes that energy consumption is high, the finished product rate of output is low.Bauxite ore is calcined to ripe ore deposit from mining, and a large amount of fine ores, face ore deposit can not obtain utilizing, and waste is very serious, how to base oneself upon the china natural resources characteristics, takes appropriate measures and reduces bauxite ore SiO
2Content; Improve the utilization ratio of bauxitic clay resource in view of the above; Promote alumine to who knows the lifting of quality, class and price; Reduce the requirement of brown corundum production, alleviate the nervous situation of alumine resource to a certain extent, have important practical significance, economic worth and important application prospects the bauxitic clay head grade.
Summary of the invention
The technical problem that the present invention will solve is, a kind of preparation method who is applicable to the homogeneous bauxitic clay of brown corundum smelting is provided, and supply falls short of demand to overcome the high grade ore that prior art exists, a large amount of fine ore, face ore deposit can not obtain utilizing, waste is very serious wait not enough.
The present invention adopts following technical scheme: it may further comprise the steps:
The first, with Al
2O
365～69% and Al
2O
370～72% bauxitic clay is crushed to respectively≤30mm, gets into rotary kiln baking to 1000 ℃, 2 hours, is crushed to behind the naturally cooling≤0.074mm;
The second, with above-mentioned broken Al
2O
365～69% bauxitic clay carries out sub-sieve, and the part of getting 240 orders-0.074mm is for use as the A material;
The 3rd, with above-mentioned broken Al
2O
370～72% bauxitic clay carries out sub-sieve, gets 325 orders-0.074mm
The 4th, stirring afterwards in 1:1 ratio thorough mixing A, two kinds of materials of B, the entering pulverizing mill makes≤200 order homogeneous bauxitic clays;
The 5th, above-mentioned homogeneous bauxitic clay moulding got into tunnel roasting to 1150 ℃, 3 hours naturally cooling after, be crushed to 30mm-1mm palm fibre corundum smelting with bauxitic clay starting material finished product.
In second step, wherein the part of 240 orders-0.074mm accounts for broken Al
2O
385～90% of 65～69% the total weight of material of bauxitic clay.
In third step, wherein the part of 325 orders-0.074mm accounts for broken Al
2O
395% of 70～72% the total weight of material of bauxitic clay.
Said Al
2O
365～69% and Al
2O
370～72% bauxitic clay refers to contain Al respectively
2O
3Be 65～69% and 70～72% bauxitic clay, be weight content here.
Current brown corundum smelting industry bauxitic clay grog technical qualification are: Al
2O
3＞85%, Sio
2＜5%, Fe
2O
3＜2%, Tio
2＞3.5%.Be applicable to that homogeneous bauxitic clay grog technical qualification of the present invention are: Al
2O
3＞80%, Sio
2＜9%, Fe
2O
3＜2%, Tio
2＞4.0%.
Compared with prior art, the present invention has following beneficial effect:
1, enlarges the bauxitic clay use range.At present, brown corundum smelting generally uses Al
2O
3The ripe ore deposit of＞85% bauxitic clay (is equivalent to raw bauxite Al
2O
3＞74%), the present invention makes Al
2O
365～72% bauxitic clays through this sinter process with bauxitic clay in Sio
2Content is successfully separated from bauxitic clay at 70～85% glassy phase; Thereby realize the purpose of bauxitic clay desiliconization; Significantly improve the bauxitic clay alumina silica ratio, satisfy the raw-material technical requirements of brown corundum smelting bauxitic clay after making 65～72% bauxitic clay through roasting desiliconization homogeneous.
2, promote using value by a relatively large margin than the low-grade bauxite ore deposit.
3, because this homogeneous bauxitic clay stay in grade, controllable density, good permeability, fusing point are low, use it to smelt brown corundum and can reduce power consumption 300～400 degree/ton corundum.
4, use the homogeneous bauxitic clay to make the brown corundum smelting process working of a furnace more stable, avoid working of a furnace reaction, security is good.
5, use homogeneous bauxitic clay of the present invention can realize the stdn of brown corundum smelting, robotization control, reduce manual work, improve workman's productive labor environment.
Embodiment
Embodiments of the invention: the preparation method of the homogeneous bauxitic clay of brown corundum smelting that is applicable to of the present invention may further comprise the steps:
The first, with Al
2O
365～69% and Al
2O
370～72% bauxitic clay is crushed to respectively≤30mm, gets into rotary kiln baking to 1000 ℃ 2 hours, is crushed to behind the naturally cooling≤0.074mm;
The second, with above-mentioned broken Al
2O
3For use (this section weight of material accounts for 85～90% of total material to the part that 65～69% bauxitic clay sub-sieve is got 240 orders-0.074mm, its SiO as the A material
2Content account for total content 15～25%).≤240 order weight account for 10～15% (this section material SiO of total material
2Content account for total content 75～85%) make other purposes.(for example: make purposes such as petroleum fracturing propping agent haydite).
The 3rd, with above-mentioned broken Al
2O
370～72% bauxitic clay carries out sub-sieve, and for use (this section weight of material accounts for 95% of gross weight, wherein SiO to the part of getting 325 orders-0.074mm as the B material
2Content account for total content 30～60%).≤325 orders partly account for about 5% of total weight of material, and this material is made other purposes (SiO in this section material
2Content accounts for total content 40-70%, can make purposes such as petroleum fracturing propping agent haydite).
The 4th, stirring afterwards in 1:1 ratio thorough mixing A, two kinds of materials of B, the entering pulverizing mill makes≤200 order homogeneous bauxitic clays.
The 5th, above-mentioned homogeneous bauxitic clay moulding is got into tunnel roasting to 1150 ℃, be crushed to 30mm-1mm palm fibre corundum smelting behind 3 hours naturally cooling with bauxitic clay starting material finished product.
Claims (3)
1. preparation method who is applicable to the homogeneous bauxitic clay of brown corundum smelting, it is characterized in that: it may further comprise the steps:
The first, with Al
2O
365～69% and Al
2O
370～72% bauxitic clay is crushed to respectively≤30mm, gets into rotary kiln baking to 1000 ℃, 2 hours, is crushed to behind the naturally cooling≤0.074mm;
The second, with above-mentioned broken Al
2O
365～69% bauxitic clay carries out sub-sieve, and the part of getting 240 orders-0.074mm is for use as the A material;
The 3rd, with above-mentioned broken Al
2O
370～72% bauxitic clay carries out sub-sieve, and the part of getting 325 orders-0.074mm is for use as the B material;
The 4th, stirring afterwards in 1:1 ratio thorough mixing A, two kinds of materials of B, the entering pulverizing mill makes≤200 order homogeneous bauxitic clays;
The 5th, above-mentioned homogeneous bauxitic clay moulding got into tunnel roasting to 1150 ℃, 3 hours naturally cooling after, be crushed to 30mm-1mm palm fibre corundum smelting with bauxitic clay starting material finished product.
2. the preparation method who is applicable to the homogeneous bauxitic clay of brown corundum smelting according to claim 1 is characterized in that: in second step, wherein the part of 240 orders-0.074mm accounts for broken Al
2O
385～90% of 65～69% the total weight of material of bauxitic clay.
3. the preparation method who is applicable to the homogeneous bauxitic clay of brown corundum smelting according to claim 1 is characterized in that: in third step, wherein the part of 325 orders-0.074mm accounts for broken Al
2O
395% of 70～72% the total weight of material of bauxitic clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210068304.2A CN102583470B (en) | 2012-03-15 | 2012-03-15 | Preparation method of homogeneous bauxite applicable to smelting of brown fused alumina |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210068304.2A CN102583470B (en) | 2012-03-15 | 2012-03-15 | Preparation method of homogeneous bauxite applicable to smelting of brown fused alumina |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102583470A true CN102583470A (en) | 2012-07-18 |
| CN102583470B CN102583470B (en) | 2014-03-19 |
Family
ID=46472833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210068304.2A Expired - Fee Related CN102583470B (en) | 2012-03-15 | 2012-03-15 | Preparation method of homogeneous bauxite applicable to smelting of brown fused alumina |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102583470B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950958A (en) * | 2014-04-24 | 2014-07-30 | 郑州烨达高新材料有限公司 | Process for fabricating black corundum |
| CN104446533A (en) * | 2014-11-04 | 2015-03-25 | 河南红然铝业有限公司 | Bauxite clinker and preparation method thereof |
| CN108439443A (en) * | 2018-03-29 | 2018-08-24 | 贵州遵义金山磨料有限公司 | A kind of method that Brown Alundum production is homogenized with bauxite ore |
| CN112939041A (en) * | 2021-02-11 | 2021-06-11 | 贵州大学 | Method for strengthening low-grade bauxite desilication by using brown corundum fly ash |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63196369A (en) * | 1987-02-07 | 1988-08-15 | Showa Denko Kk | Composition for polishing aluminum magnetic disc |
| CN101012498A (en) * | 2007-02-12 | 2007-08-08 | 李乾宽 | Method for producing high alumina refined powder by using alumyte |
| CN101913892A (en) * | 2010-09-06 | 2010-12-15 | 山西高科耐火材料股份有限公司 | Method for producing homogenized alumina |
| CN102351522A (en) * | 2011-07-15 | 2012-02-15 | 郑州大学 | Method for preparing homogeneous mullite material from kyanite |
-
2012
- 2012-03-15 CN CN201210068304.2A patent/CN102583470B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63196369A (en) * | 1987-02-07 | 1988-08-15 | Showa Denko Kk | Composition for polishing aluminum magnetic disc |
| CN101012498A (en) * | 2007-02-12 | 2007-08-08 | 李乾宽 | Method for producing high alumina refined powder by using alumyte |
| CN101913892A (en) * | 2010-09-06 | 2010-12-15 | 山西高科耐火材料股份有限公司 | Method for producing homogenized alumina |
| CN102351522A (en) * | 2011-07-15 | 2012-02-15 | 郑州大学 | Method for preparing homogeneous mullite material from kyanite |
Non-Patent Citations (1)
| Title |
|---|
| 谭莹等: "均质铝矾土煅烧技术的研究", 《耐火与石灰》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950958A (en) * | 2014-04-24 | 2014-07-30 | 郑州烨达高新材料有限公司 | Process for fabricating black corundum |
| CN104446533A (en) * | 2014-11-04 | 2015-03-25 | 河南红然铝业有限公司 | Bauxite clinker and preparation method thereof |
| CN108439443A (en) * | 2018-03-29 | 2018-08-24 | 贵州遵义金山磨料有限公司 | A kind of method that Brown Alundum production is homogenized with bauxite ore |
| CN112939041A (en) * | 2021-02-11 | 2021-06-11 | 贵州大学 | Method for strengthening low-grade bauxite desilication by using brown corundum fly ash |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102583470B (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107721380B (en) | Preparation method of low-cost high-aluminum ceramic sheet | |
| CN103242031B (en) | Ceramic sanitary ware prepared from waste ceramic and preparation method thereof | |
| CN103288426B (en) | A kind of method utilizing industrial waste to prepare the special fracturing propping agents of shale gas | |
| CN105925257B (en) | A kind of low-density ceramic proppant and preparation method thereof | |
| CN108892401B (en) | Method for calcining belite sulphoaluminate cement clinker by using phosphogypsum and cement clinker | |
| CN107226691A (en) | A kind of green transmutation sagging ceramic and its manufacture craft | |
| CN104479665A (en) | Petroleum proppant and preparation method thereof | |
| CN109279615B (en) | A kind of preparation method of the high whiteness calcination of talc of low cost | |
| CN102351441A (en) | Method for producing dead-burned magnesia through one-step calcination of magnesite tailings | |
| CN104371703B (en) | A kind of method that petroleum fracturing propping agent is prepared by raw material of aluminous fly-ash | |
| CN102583470B (en) | Preparation method of homogeneous bauxite applicable to smelting of brown fused alumina | |
| CN103351154A (en) | Thinned ceramic tile and manufacturing method thereof | |
| CN102093034A (en) | Ceramic and preparation method thereof | |
| CN104291847A (en) | High-strength guimo brick and preparation method thereof | |
| CN102649628A (en) | Method for producing super-low-alkali silicate cement clinker by using industrial waste residue on 5KT/D dry-process kiln | |
| CN106431458B (en) | The method that tailings in vanadium extraction prepares porous ceramics | |
| CN106336227B (en) | A kind of mineral products waste refractory material and its preparation process | |
| CN106830904A (en) | A kind of ultralow density high-strength degree ceramic fracturing proppant and preparation method thereof | |
| CN105777066A (en) | Longquan celadon made from rare earth tailings and manufacture method thereof | |
| CN109502616A (en) | A kind of Brown Alundum smelting bauxite preparation method | |
| CN104130764B (en) | Additive for fracturing propping agent, fracturing propping agent and preparation method | |
| CN103496951B (en) | Preparation method of low-temperature sintered high-strength ultrathin ceramic tile | |
| CN104986975A (en) | G-class oil well cement and processing technology thereof | |
| CN106190092B (en) | The low-density ceramic proppant and preparation method thereof prepared using flint clay clinker and dolomite as raw material | |
| CN104844158A (en) | Method for producing ceramic material by using metallurgic intermediate cladding slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160725 Address after: 556100 Guizhou Province, Qiandongnan Miao and Dong Autonomous Region Huangping county Gansu Valley Industrial Park Patentee after: GUIZHOU HUANGPING FUCHENG INDUSTRIAL Co.,Ltd. Address before: Guizhou city of Guiyang province Nanming City District Road No. 108 building 1302 room 2 Fulouwang di Patentee before: Gong Yayun |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 |