CN108238781A - A kind of kaolinic method for removing iron - Google Patents
A kind of kaolinic method for removing iron Download PDFInfo
- Publication number
- CN108238781A CN108238781A CN201810101521.4A CN201810101521A CN108238781A CN 108238781 A CN108238781 A CN 108238781A CN 201810101521 A CN201810101521 A CN 201810101521A CN 108238781 A CN108238781 A CN 108238781A
- Authority
- CN
- China
- Prior art keywords
- slurry
- iron
- pickling
- kaolinic
- removing iron
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 49
- 238000005554 pickling Methods 0.000 claims abstract description 25
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 19
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 19
- 239000013049 sediment Substances 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000004513 sizing Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 5
- 235000006408 oxalic acid Nutrition 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000002513 implantation Methods 0.000 claims description 3
- 238000010348 incorporation Methods 0.000 claims description 3
- 239000006148 magnetic separator Substances 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 7
- 238000001914 filtration Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 description 4
- 230000002000 scavenging effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 241000231739 Rutilus rutilus Species 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/10—Eliminating iron or lime
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of kaolinic method for removing iron, grain size screening is carried out by the slurry prepared to architecture sediment, it is preliminary to be processed except magnetic, chemical purification processing and etc. realize to architecture sediment for raw material removing iron by kaolin purpose, whole preparation process is simple for process, and effectively remove the impurity in architecture sediment, overcome the technology prejudice that architecture sediment is waste, and the time in press filtration and space are taken full advantage of in the solution of the present invention, ferrous removal in slurry after being realized while slurry press filtration to pickling, greatly increase production efficiency.
Description
Technical field
The present invention relates to ceramic raw material fields, and in particular to a kind of kaolinic method for removing iron.
Background technology
Kaolin has a wide range of applications in ceramics and field of papermaking, and contains more kaolinite in architecture sediment more
Soil if architecture sediment, which can be used, is prepared into the kaolin of high quality, can realize waste utilization, energy saving, real
Existing sustainable development, but architecture sediment contains more impurity, especially more iron tramp, it is traditional except iron mainly passes through pickling
Kaolin is added an acid in kaolinic slurry, reaction stand 8-10h, reinject a large amount of clear water rinse away in water two
Valency iron, but this method takes long, and production efficiency is low, thus this case generates.
Invention content
It is an object of the invention to solve the problems of the prior art, provide a kind of production efficiency high kaolinic except iron
Method, wherein kaolin are using architecture sediment as raw material.
To reach above-mentioned purpose, the present invention adopts the following technical scheme that：
A kind of kaolinic method for removing iron, includes the following steps：1st, architecture sediment is put into stirring pool plus water stirs, obtained
To slurry；2nd, sizing screening is carried out to above-mentioned slurry and obtains slurry；Slurry after 3 pairs of sizing screenings tentatively add except magnetic
Work；4th, pickling is carried out to tentatively removing in the slurry obtained after magnetic processing；5th, the slurry after pickling is poured into filter press, and
The space of 15%-25% is reserved in filter press；6th, in the remaining space of filter press implantation quality score for 5%-8%
Except iron kaolin slurry, until mud cake press dry, the kaolin except iron is obtained.
Further, step 3 includes the following steps：It introduces the slurry into permanent magnet high gradient magnetic separator and obtains the slurry after roughing
Material.
Further, in step 4 it is preliminary except magnetic processing after in obtained slurry incorporation sulfuric acid, sulfurous acid and oxalic acid into
Row pickling.
Further, the time of pickling is 25-45 minutes in step 4.
Further, the screening in step 2 is carried out by spiral classifier.
Technical solutions according to the invention are relative to the prior art, the advantageous effect of acquirement：
(1) present invention carries out grain size screening by the slurry prepared to architecture sediment, is preliminary except magnetic processing, chemical purification
Processing and etc. realize to architecture sediment for raw material removing iron by kaolin purpose, whole preparation process is simple for process and has
The impurity in architecture sediment, especially iron tramp are eliminated to effect, overcomes the technology prejudice that building roach is waste；After pickling
Slurry in, ferrous iron is predominantly retained in water, and the slurry of this pickling is poured into filter press, then aqueous solution is located at the upper of pressure filter
Layer, when the kaolin slurry for having removed iron is poured into remaining space in filter press, except the solute in the kaolin slurry of iron
To sinking so that the water in pickling slurry is forced out namely ferrous iron is carried over, except the mass fraction of iron kaolin slurry is
5%-8%, concentration is appropriate, avoids the problems such as too small scavenging period of concentration is long or excessive concentration, and scavenging period is too short,
The time in press filtration and space are taken full advantage of in the solution of the present invention, to being starched after being realized while slurry press filtration to pickling
Ferrous removal, greatly increases production efficiency in material.The present invention is to prepare pickling with simple technique kaolinic
Meanwhile efficiently using for building roach is realized, and not only turn waste into wealth, and production cost is low, be conducive to mass produce, it can be wide
It is general to be applied to ceramic industry.
(2) the magnetic processing that tentatively removes of the invention is enriched with roughing removal of impurities by permanent-magnet high gradient, and simple for process, operation can
It leans on.
(3) pickling of the invention is using sulfuric acid, sulfurous acid and oxalic acid, and the reaction time is short, and production efficiency is high.
Specific embodiment
In order to make technical problems, technical solutions and advantages to be solved clearer, clear, tie below
Embodiment is closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only explaining
The present invention is not intended to limit the present invention.
A kind of kaolinic method for removing iron, includes the following steps：
1st, architecture sediment is put into stirring pool plus water stirs, obtain slurry；
2nd, spiral classifier is poured into above-mentioned slurry, slurry is obtained after sizing screening；
3rd, the slurry after sizing screening is carried out, tentatively except magnetic processing, specially introducing the slurry into permanent-magnet high gradient magnetic separation
Machine obtains the slurry after roughing；
4th, incorporation sulfuric acid, sulfurous acid and oxalic acid carry out pickling in the slurry obtained after the preliminary processing except magnetism, pickling
Time is 30 minutes；
5th, the slurry after pickling is poured into filter press, and 20% space is reserved in filter press；
6th, implantation quality score has removed iron kaolin slurry for 5%-8% in the remaining space of filter press, until
Mud cake press dry, and obtains the kaolin except iron.
The present invention carries out grain size screening by the slurry prepared to architecture sediment, is preliminary except magnetic processing, chemical purification add
Work and etc. realize to architecture sediment for raw material removing iron by kaolin purpose, whole preparation process it is simple for process and effectively
Ground eliminates the impurity in architecture sediment, especially iron tramp, overcomes the technology prejudice that architecture sediment is waste；After pickling
In slurry, ferrous iron is predominantly retained in water, and the slurry of this pickling is poured into filter press, then aqueous solution is located at the upper of pressure filter
Layer, when the kaolin slurry for having removed iron is poured into remaining space in filter press, except the solute in the kaolin slurry of iron
To sinking so that the water in pickling slurry is forced out namely ferrous iron is carried over, except the mass fraction of iron kaolin slurry is
5%-8%, concentration is appropriate, avoids the problems such as too small scavenging period of concentration is long or excessive concentration, and scavenging period is too short,
The time in press filtration and space are taken full advantage of in the solution of the present invention, to being starched after being realized while slurry press filtration to pickling
Ferrous removal, greatly increases production efficiency in material.The present invention is to prepare pickling with simple technique kaolinic
Meanwhile efficiently using for architecture sediment is realized, and not only turn waste into wealth, and production cost is low, be conducive to mass produce, it can be wide
It is general to be applied to ceramic industry.The preliminary of the present invention cleans except magnetic processing is enriched with roughing by permanent-magnet high gradient, simple for process, behaviour
Make reliable.The pickling of the present invention is using sulfuric acid, sulfurous acid and oxalic acid, and the reaction time is short, and production efficiency is high.
Description above describe the preferred embodiment of the present invention, it is to be understood that the present invention is not limited to above-mentioned implementation
Example, and the exclusion to other embodiment should not be regarded as.By the enlightenment of the present invention, those skilled in the art combine known or existing
The change that technology, knowledge are carried out also should be regarded as within the scope of the present invention.
Claims (5)
1. a kind of kaolinic method for removing iron, it is characterised in that：Include the following steps：
1st, architecture sediment is put into stirring pool plus water stirs, obtain slurry；
2nd, sizing screening is carried out to above-mentioned slurry and obtains slurry；
3rd, the slurry after sizing screening is carried out tentatively except magnetic processing；
4th, pickling is carried out to tentatively removing in the slurry obtained after magnetic processing；
5th, the slurry after pickling is poured into filter press, and the space of 15%-25% is reserved in filter press；
6th, implantation quality score has removed iron kaolin slurry for 5%-8% in the remaining space of filter press, until mud cake
It press dry, obtains the kaolin except iron.
2. a kind of kaolinic method for removing iron as described in claim 1, it is characterised in that：Step 3 includes the following steps：It will slurry
Material introduces permanent magnet high gradient magnetic separator and obtains the slurry after roughing.
It is 3. as claimed in claim 1 or 2 a kind of kaolinic except iron Preparation Method, it is characterised in that：It is tentatively being removed in step 4
Incorporation sulfuric acid, sulfurous acid and oxalic acid carry out pickling in the slurry obtained after magnetism processing.
4. a kind of kaolinic method for removing iron as claimed in claim 3, it is characterised in that：The time of pickling is 25- in step 4
45 minutes.
5. a kind of kaolinic method for removing iron as described in claim 1, it is characterised in that：Screening in step 2 passes through spiral
Grader carries out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810101521.4A CN108238781B (en) | 2018-02-01 | 2018-02-01 | Method for removing iron from kaolin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810101521.4A CN108238781B (en) | 2018-02-01 | 2018-02-01 | Method for removing iron from kaolin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108238781A true CN108238781A (en) | 2018-07-03 |
| CN108238781B CN108238781B (en) | 2020-10-13 |
Family
ID=62698752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810101521.4A Active CN108238781B (en) | 2018-02-01 | 2018-02-01 | Method for removing iron from kaolin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108238781B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772578A (en) * | 2019-01-28 | 2019-05-21 | 厦门欣意盛非金属材料科技有限公司 | A kind of Kaolin Tailings comprehensive utilization treatment process |
| CN111170718A (en) * | 2019-12-31 | 2020-05-19 | 深圳市华域环保科技有限公司 | Method for treating metal substances in building waste soil |
| CN111410204A (en) * | 2020-05-08 | 2020-07-14 | 鑫中科贸易(深圳)有限公司 | Method for preparing high-grade kaolin from sludge soil |
Citations (5)
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|---|---|---|---|---|
| GB576318A (en) * | 1943-12-10 | 1946-03-28 | Garco Products Inc | Improvements in or relating to the preparation of argillaceous material for use in the manufacture of pottery, glazes, enamels, glassware and the like |
| US3853983A (en) * | 1973-05-21 | 1974-12-10 | Huber Corp J M | Method for improving brightness of kaolinite clays including iron pyrites |
| CN1295040A (en) * | 2000-11-20 | 2001-05-16 | 李红 | Iron eliminating method for quartzite |
| CN1528979A (en) * | 2003-10-01 | 2004-09-15 | 茂名高岭科技有限公司 | Papermaking coating kaoline brightening and viscosity reducing process |
| CN104649679A (en) * | 2015-02-02 | 2015-05-27 | 陶正武 | High-whiteness ceramic tile and preparation method thereof |
-
2018
- 2018-02-01 CN CN201810101521.4A patent/CN108238781B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB576318A (en) * | 1943-12-10 | 1946-03-28 | Garco Products Inc | Improvements in or relating to the preparation of argillaceous material for use in the manufacture of pottery, glazes, enamels, glassware and the like |
| US3853983A (en) * | 1973-05-21 | 1974-12-10 | Huber Corp J M | Method for improving brightness of kaolinite clays including iron pyrites |
| CN1295040A (en) * | 2000-11-20 | 2001-05-16 | 李红 | Iron eliminating method for quartzite |
| CN1528979A (en) * | 2003-10-01 | 2004-09-15 | 茂名高岭科技有限公司 | Papermaking coating kaoline brightening and viscosity reducing process |
| CN104649679A (en) * | 2015-02-02 | 2015-05-27 | 陶正武 | High-whiteness ceramic tile and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 冯春宇: "《固液分离原理与工业水处理装置》", 31 January 2017, 西安电子科技大学出版社 * |
| 胡岳华: "《黑色岩系石煤钒矿和镍钼矿的选矿》", 30 November 2015, 中南大学出版社 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772578A (en) * | 2019-01-28 | 2019-05-21 | 厦门欣意盛非金属材料科技有限公司 | A kind of Kaolin Tailings comprehensive utilization treatment process |
| CN111170718A (en) * | 2019-12-31 | 2020-05-19 | 深圳市华域环保科技有限公司 | Method for treating metal substances in building waste soil |
| CN111410204A (en) * | 2020-05-08 | 2020-07-14 | 鑫中科贸易(深圳)有限公司 | Method for preparing high-grade kaolin from sludge soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108238781B (en) | 2020-10-13 |
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Address after: 361000, No. 117, building bridge on earthen village, Xifeng farm, Tongan District, Fujian, Xiamen Applicant after: Xiamen xinyisheng New Material Technology Co.,Ltd. Address before: 361000, No. 117, building bridge on earthen village, Xifeng farm, Tongan District, Fujian, Xiamen Applicant before: XIAMEN XINYISHENG NONMETAL MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A method of removing iron from kaolin Effective date of registration: 20210508 Granted publication date: 20201013 Pledgee: Xiamen finance Company limited by guarantee Pledgor: Xiamen xinyisheng New Material Technology Co.,Ltd. Registration number: Y2021980003371 |
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Date of cancellation: 20220325 Granted publication date: 20201013 Pledgee: Xiamen finance Company limited by guarantee Pledgor: Xiamen xinyisheng New Material Technology Co.,Ltd. Registration number: Y2021980003371 |
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Denomination of invention: Method for removing iron from kaolin Effective date of registration: 20220328 Granted publication date: 20201013 Pledgee: Xiamen SME Financing Guarantee Co.,Ltd. Pledgor: Xiamen xinyisheng New Material Technology Co.,Ltd. Registration number: Y2022110000068 |
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