CN107032466A - A kind of ferric sulfate of polymerized silica aluminium water purifying agent production method - Google Patents
A kind of ferric sulfate of polymerized silica aluminium water purifying agent production method Download PDFInfo
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- CN107032466A CN107032466A CN201710376127.7A CN201710376127A CN107032466A CN 107032466 A CN107032466 A CN 107032466A CN 201710376127 A CN201710376127 A CN 201710376127A CN 107032466 A CN107032466 A CN 107032466A
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- Prior art keywords
- slag
- ferric sulfate
- purifying agent
- liquid
- water purifying
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
Abstract
The present invention relates to a kind of ferric sulfate of polymerized silica aluminium water purifying agent production method.The present invention is using the slag and fly ash in electric power plant of iron and steel enterprise as primary raw material, and addition accounts for the natural quartz of slag and flyash gross mass 0~10% to increase the content of silicon.Filtrate and filter residue are obtained after Al, Fe salting liquid, filtering are obtained with sulfuric acid dissolution slag and coal ash for manufacturing；PH value is adjusted, the aluminium salt in solution is fully dissolved, as Al3+Afterwards, H is added2O2Ferrous oxide turns into after high ferro, obtains Fe3+Precursor liquid；Gained filter residue obtains Na with after NaOH solution alkali soluble2SiO3Precursor liquid；Two precursor liquids are added into H3PO4As stabilizer, poly-silicon iron aluminium sulphate is prepared by polymerisation.The present invention makes slag and flyash realize recycling, prepared ferric sulfate of polymerized silica aluminium water purifying agent, which has, prepares the characteristics of with low cost, product purifying water effect is good, can be widely used in the production waste water of the industry heavily contaminateds such as purification steel, coking, papermaking, printing and dyeing and sanitary sewage disposal.
Description
Technical field
The present invention relates to a kind of production waste water that can be widely applied for the industry heavily contaminated such as steel, coking, papermaking, printing and dyeing
And the production method of the ferric sulfate of polymerized silica aluminium water purifying agent of sanitary sewage disposal.
Background technology
Poly-silicon iron aluminium sulphate（Polymeric Ferric Silicate Sulfate, PFSS）It is a kind of function admirable
Inorganic polymer flocculant, with purifying water effect is good, water purification consumption is few, the characteristics of have no toxic side effect.It is existing to prepare poly- silicon sulfuric acid
The method of iron aluminium is needed using sodium metasilicate and ferric aluminium sulfate as primary raw material, using flocculation aid of the activated silicic acid as ferric aluminium sulfate,
Cost of material height causes the production cost of poly-silicon iron aluminium sulphate high.
The content of the invention
The problem of high for the production cost of solution poly-silicon iron aluminium sulphate, it is simple that the present invention proposes a kind of with low cost, technique
Single method for preparing ferric sulfate of polymerized silica aluminium water purifying agent.
The present invention solve technical problem use technical scheme be：It is main with the slag and fly ash in electric power plant of iron and steel enterprise
Raw material, addition accounts for the natural quartz of slag and flyash gross mass 0~10% to increase the content of silicon, is prepared by polymerisation
Ferric sulfate of polymerized silica aluminium water purifying agent.
A kind of ferric sulfate of polymerized silica aluminium water purifying agent production method of the present invention comprises the following steps.
(1) slag, flyash and natural quartz are added in the reactor provided with agitator and reflux condensate device, its
Middle slag and flyash quality ratio is 1~1.5：1, natural quartz quality is the 0~10% of slag and flyash gross mass, by it
Mix.
(2) concentration is pressed into the solid mass ratio 2.5~3.5 of liquid for 12% sulfuric acid solution：1 adds in above-mentioned reactor fully
Stirring, temperature control is filtered after 100~135 DEG C, 2~3.5h of back flow reaction, obtains filtrate and filter residue.
(3) 45 DEG C are cooled the filtrate to, 35% NaOH solution regulation pH value is added, until generation white flock precipitate,
To remove Al3+。
(4) H of addition 30%~35%2O2Solution, makes Fe in system2+It is completely converted into Fe3+, obtain Fe3+Precursor liquid.
(5) filter residue obtained by step (2) is removed into MgSO4And CaSO4Afterwards, with 35% NaOH solution alkali soluble, be separated by filtration
After obtain Na2SiO3Precursor liquid.
(6) by above-mentioned Fe3+Precursor liquid and Na2SiO3After precursor liquid is diluted with water respectively, under intense mechanical stirring,
Add H3PO4As stabilizer, it is then added in polymer reactor and carries out polymerisation, the pH value of solution is adjusted with 10% NaOH
Untill solution is changed into orange red from yellow, the poly-silicon iron aluminium sulphate of liquid is obtained.
(7) gained liquid poly-silicon iron aluminium sulphate is put into baking oven, the poly- silicon sulphur of solid is produced after being dried at 100~120 DEG C
Sour iron aluminium water purifying agent.
The beneficial effects of the present invention are：Using the industrial residue of iron and steel enterprise as primary raw material, metallurgical slag is set to realize money
Sourceization is utilized；The poly-silicon iron aluminium sulphate added value of production is high, and low production cost, product purifying water effect are good, being capable of extensive use
Production waste water and sanitary sewage disposal in the industry heavily contaminated such as steel, coking, papermaking, printing and dyeing.
Brief description of the drawings
Fig. 1 is a kind of ferric sulfate of polymerized silica aluminium water purifying agent production method schematic flow sheet of the invention.
Embodiment
A kind of ferric sulfate of polymerized silica aluminium water purifying agent production method embodiment of the present invention.Slag and Tangshan of the primary raw material for Tang Gang
The flyash of power plant, its main chemical compositions are shown in Tables 1 and 2.
。
(1) slag 700g, flyash 300g and natural quartz are weighed respectively（Wherein SiO2Content is 96.52%）25g,
It is added to after mixing in the reactor provided with agitator and reflux condensate device.
(2) concentration is added in above-mentioned reactor for 12% sulfuric acid solution 3500g, be sufficiently stirred for, temperature control exists
115 DEG C, filter after back flow reaction 3.0h, obtain filtrate and filter residue.
(3) 45 DEG C are cooled the filtrate to, 45% NaOH solution regulation pH value is added, until generation white flock precipitate.
(4) 35ml H is added2O2Solution, makes the Fe in system2+It is completely converted into Fe3+, obtain Fe3+Precursor liquid.
(5) filter residue obtained by step (2) is removed into MgSO4And CaSO4Afterwards, with 35% NaOH solution alkali soluble, be separated by filtration
After obtain Na2SiO3Precursor liquid.
(6) by above-mentioned Fe3+Precursor liquid and Na2SiO3After precursor liquid is diluted with water respectively, under intense mechanical stirring,
Add H3PO4As stabilizer, it is then added in polymer reactor and carries out polymerisation, the pH value of solution is adjusted with 12% NaOH
Untill solution is changed into orange red from yellow, the poly-silicon iron aluminium sulphate of liquid is obtained.
(7) gained liquid poly-silicon iron aluminium sulphate is put into baking oven, solid ferric sulfate of polymerized silica is produced after being dried at 105 DEG C
Aluminium water purifying agent.
Claims (2)
1. the present invention relates to a kind of ferric sulfate of polymerized silica aluminium water purifying agent production method, it is characterised in that：With the slag of iron and steel enterprise and
Fly ash in electric power plant is primary raw material, and addition accounts for the natural quartz of slag and flyash gross mass 0~10% to increase the content of silicon,
Poly-silicon iron aluminium sulphate is prepared by polymerisation.
2. a kind of ferric sulfate of polymerized silica aluminium water purifying agent production method, including following production stage according to claim 1：
(1) slag, flyash and natural quartz, wherein steel are added in the reactor provided with agitator and reflux condensate device
Slag and flyash quality ratio are 1~1.5：1, natural quartz quality is the 0~10% of slag and flyash gross mass, and they are mixed
It is even；
(2) concentration is pressed into the solid mass ratio 2.5~3.5 of liquid for 12% sulfuric acid solution：It is sufficiently stirred in the 1 above-mentioned reactor of addition,
Temperature control is filtered after 100~135 DEG C, 2~3.5h of back flow reaction, obtains filtrate and filter residue；
(3) 45 DEG C are cooled the filtrate to, 35% NaOH solution regulation pH value is added, until generation white flock precipitate, to go
Except Al3+；
(4) H of addition 30%~35%2O2Solution, makes the Fe in system2+It is completely converted into Fe3+, obtain Fe3+Precursor liquid；
(5) filter residue obtained by step (2) is removed into MgSO4And CaSO4Afterwards, with 35% NaOH solution alkali soluble, after being separated by filtration
To Na2SiO3Precursor liquid；
(6) by above-mentioned Fe3+Precursor liquid and Na2SiO3After precursor liquid is diluted with water respectively, under intense mechanical stirring, add
H3PO4As stabilizer, it is then added in polymer reactor and carries out polymerisation, the pH value of solution is adjusted to molten with 10% NaOH
Untill liquid is changed into orange red from yellow, the poly-silicon iron aluminium sulphate of liquid is obtained；
(7) gained liquid poly-silicon iron aluminium sulphate is put into baking oven, solid ferric sulfate of polymerized silica is produced after being dried at 100~120 DEG C
Aluminium water purifying agent.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935143A (en) * | 2017-12-04 | 2018-04-20 | 包头钢铁（集团）有限责任公司 | Inorganic coagulant and preparation method thereof |
| CN107963670A (en) * | 2018-01-04 | 2018-04-27 | 湖南科技大学 | Method using polyvinyl alcohol production process Waste Sulfuric Acid and coal ash for manufacturing for polyaluminum sulfate aluminium iron silicate compound coagulant |
| CN108773882A (en) * | 2018-06-26 | 2018-11-09 | 清华大学深圳研究生院 | A kind of Inorganic complex coagulant and its preparation method and application |
| CN109250795A (en) * | 2018-09-21 | 2019-01-22 | 六盘水师范学院 | The method that type micro-wave radiation method for the treatment of different things alike quickly prepares polysilicate aluminum ferric sulfate |
| CN112456626A (en) * | 2020-08-12 | 2021-03-09 | 南京同畅新材料研究院有限公司 | Method and device for preparing defluorinating agent by bipolar membrane acid production |
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| CN1785837A (en) * | 2005-10-24 | 2006-06-14 | 安徽工业大学 | Method of preparing poly-silicon iron aluminium sulphate using metallugical slag |
| CN1958444A (en) * | 2005-10-31 | 2007-05-09 | 武汉钢铁集团冶金渣有限责任公司 | Method for preparing ferric sulfate of polymerized silica by using metallurgy dregs |
| CN101239721A (en) * | 2007-02-08 | 2008-08-13 | 朱成林 | Method for preparing polysilicon ferric sulfate water purifying agent from steel slag and water slag |
| CN104003492A (en) * | 2014-05-29 | 2014-08-27 | 宜宾学院 | Preparation method of polyaluminum ferric sulfate silicate coagulant |
| CN104261539A (en) * | 2014-10-08 | 2015-01-07 | 西安石油大学 | Method for preparing efficient and non-toxic water purifying agent by wastes |
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2017
- 2017-05-25 CN CN201710376127.7A patent/CN107032466A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1785837A (en) * | 2005-10-24 | 2006-06-14 | 安徽工业大学 | Method of preparing poly-silicon iron aluminium sulphate using metallugical slag |
| CN1958444A (en) * | 2005-10-31 | 2007-05-09 | 武汉钢铁集团冶金渣有限责任公司 | Method for preparing ferric sulfate of polymerized silica by using metallurgy dregs |
| CN101239721A (en) * | 2007-02-08 | 2008-08-13 | 朱成林 | Method for preparing polysilicon ferric sulfate water purifying agent from steel slag and water slag |
| CN104003492A (en) * | 2014-05-29 | 2014-08-27 | 宜宾学院 | Preparation method of polyaluminum ferric sulfate silicate coagulant |
| CN104261539A (en) * | 2014-10-08 | 2015-01-07 | 西安石油大学 | Method for preparing efficient and non-toxic water purifying agent by wastes |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935143A (en) * | 2017-12-04 | 2018-04-20 | 包头钢铁（集团）有限责任公司 | Inorganic coagulant and preparation method thereof |
| CN107963670A (en) * | 2018-01-04 | 2018-04-27 | 湖南科技大学 | Method using polyvinyl alcohol production process Waste Sulfuric Acid and coal ash for manufacturing for polyaluminum sulfate aluminium iron silicate compound coagulant |
| CN108773882A (en) * | 2018-06-26 | 2018-11-09 | 清华大学深圳研究生院 | A kind of Inorganic complex coagulant and its preparation method and application |
| CN108773882B (en) * | 2018-06-26 | 2021-05-07 | 清华大学深圳研究生院 | Inorganic composite coagulant and preparation method and application thereof |
| CN109250795A (en) * | 2018-09-21 | 2019-01-22 | 六盘水师范学院 | The method that type micro-wave radiation method for the treatment of different things alike quickly prepares polysilicate aluminum ferric sulfate |
| CN112456626A (en) * | 2020-08-12 | 2021-03-09 | 南京同畅新材料研究院有限公司 | Method and device for preparing defluorinating agent by bipolar membrane acid production |
| CN112456626B (en) * | 2020-08-12 | 2024-02-13 | 南京同畅新材料研究院有限公司 | Method and device for preparing fluorine removing agent by bipolar membrane acid production |
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Application publication date: 20170811 |
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