CN107082476A - One kind polymerization ferric acetate and preparation method thereof, application - Google Patents
One kind polymerization ferric acetate and preparation method thereof, application Download PDFInfo
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- CN107082476A CN107082476A CN201710192586.XA CN201710192586A CN107082476A CN 107082476 A CN107082476 A CN 107082476A CN 201710192586 A CN201710192586 A CN 201710192586A CN 107082476 A CN107082476 A CN 107082476A
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- ferric acetate
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- ion
- polymerize
- acetic acid
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- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- PVFSDGKDKFSOTB-UHFFFAOYSA-K iron(3+);triacetate Chemical compound [Fe+3].CC([O-])=O.CC([O-])=O.CC([O-])=O PVFSDGKDKFSOTB-UHFFFAOYSA-K 0.000 title claims abstract 15
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 91
- 229960000583 acetic acid Drugs 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000002351 wastewater Substances 0.000 claims abstract description 26
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims abstract description 25
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 24
- 239000011574 phosphorus Substances 0.000 claims abstract description 24
- 150000002500 ions Chemical class 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims abstract description 13
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 12
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 12
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 11
- 239000007800 oxidant agent Substances 0.000 claims abstract description 7
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 26
- 229910001448 ferrous ion Inorganic materials 0.000 claims description 26
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 claims description 18
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 2
- 150000001242 acetic acid derivatives Chemical class 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 31
- 229910052742 iron Inorganic materials 0.000 abstract description 19
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 6
- 241000370738 Chlorion Species 0.000 abstract description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract description 3
- GOKIPOOTKLLKDI-UHFFFAOYSA-N acetic acid;iron Chemical compound [Fe].CC(O)=O.CC(O)=O.CC(O)=O GOKIPOOTKLLKDI-UHFFFAOYSA-N 0.000 description 35
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- -1 iron ion Chemical class 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000004062 sedimentation Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- 229910017135 Fe—O Inorganic materials 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012851 eutrophication Methods 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 2
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NVVGMIRCFUVBOB-UHFFFAOYSA-N acetic acid;iron Chemical compound [Fe].CC(O)=O NVVGMIRCFUVBOB-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a kind of preparation method for polymerizeing ferric acetate, comprise the following steps：Copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water at room temperature, sequentially add glacial acetic acid and oxidant is well mixed and obtains mixed solution, then carry out water bath processing, remove foreign ion, bronzing product liquid is obtained, solid polymerization ferric acetate is then dried to obtain.It polymerize ferric acetate the invention also discloses one kind.The invention also discloses a kind of application for polymerizeing ferric acetate.The present invention replaces sulfuric acid, hydrochloric acid to prepare the flocculant of polymeric iron by using acetic acid, for corroding caused by sulfate ion and chlorion, it is relatively small containing corrosivity caused by counter ion acetate ion in polymeric iron, and dephosphorization rate and go turbid rate high during Removal of Phosphorus in Wastewater, it goes turbid rate up to more than 95%, and dephosphorization rate is up to more than 93%.
Description
Technical field
It polymerize ferric acetate and preparation method thereof, application the present invention relates to water treatment agent technical field, more particularly to one kind.
Background technology
Due to developing rapidly for urbanization, industrialization and chemurgy, substantial amounts of phosphorus containg substances are discharged into water body.Although phosphorus is first
Element is favourable to the ecosystem, but phosphorus-containing compound excessive in fresh water is by after algae and plant absorption, causes algae and plant
The overgrowing of thing, destroys the balance of the organic matter of water body, water quality deterioration and causes environmental pollution and produce the eutrophication of water body
Phenomenon.For the eutrophication of anti-water-stop body, the limitation of many national contents to draining into water systems'phosphorus has strict
Regulation, therefore the research in recent decades around phosphorus ligands is a lot.The technique of phosphorus content in reduction waste water mainly has physics, change
The technique such as and biology, in these processing methods, flocculence is due to smaller with simple, inexpensive and effect on environment
The advantages of and as most important, most common chemical treatment technology in waste water treatment process.Therefore, many research is to surround to change
Enter flocculation process development, wherein with more flocculant be aluminium and iron flocculant.And the flocculant of aluminium is used particularly
Extensively, but aluminium flocculating agent has potentially hazardous to health, therefore tend to use ferric flocculant at present, it is recently many to grind
The person of studying carefully has carried out extensive research to ferric flocculant, but it is more be all bodied ferric sulfate (Zouboulis, A.I., Moussas,
P.A., 2008.Polyferric sulphate：Preparation, characterization and application in
coagulation experiments[J].J.Hazard.Mater.155：459-468.) and poly-ferric chloride (Chen,
T.Gao, B.Y., Q.Y.Yue, 2010.Effect of dosing method and pH on color removal
performance and fl℃aggregation of polyferric chloride–polyamine dual-
Coagulant in synthetic dyeing wastewater treatment [J] .Colloids Surf.A, 355,
121-129.) etc..Due to sulfate ion and chlorion etc., therefore being used in bodied ferric sulfate and poly-ferric chloride
During the problem of also generate different, such as chlorion can cause pollution, the corrosion that has that not only can be to iron structure, and right
The also generation corrosion of concrete structure；Sulfate ion also can produce corrosion to other materials.
The content of the invention
The technical problem existed based on background technology, the present invention is proposed a kind of polymerization ferric acetate and preparation method thereof, answered
With replacing sulfuric acid, hydrochloric acid to prepare the flocculant of polymeric iron by using acetic acid, cause relative to sulfate ion and chlorion
Corrosion for, relatively small containing corrosivity caused by counter ion acetate ion in polymeric iron, and Removal of Phosphorus in Wastewater
When dephosphorization rate and go turbid rate high.
A kind of preparation method for polymerizeing ferric acetate proposed by the present invention, comprises the following steps：At room temperature by ferrous sulfate or
Ferrous sulfate heptahydrate is soluble in water to obtain copperas solution, sequentially adds glacial acetic acid and oxidant is well mixed and obtains mixing molten
Liquid, then carries out water bath processing, removes foreign ion, obtains bronzing product liquid, be then dried to obtain solid polymerization acetic acid
Iron.
Preferably, copperas solution ferrous ions concentration is 1.80~1.90mol/L.
Preferably, in mixed solution, the mol ratio of ferrous ion and acetic acid is 1：3.5~4.5, ferrous ion and oxidant
Mol ratio be 5.5~5.6：1.
Preferably, oxidant is one or both of potassium chlorate, sodium chlorate, hydrogen peroxide combination of the above thing.
Preferably, the temperature of water bath processing is 50~70 DEG C, and the time of water bath processing is 5~7h.
Preferably, drying temperature is 48~52 DEG C.
A kind of polymerization ferric acetate that the present invention is also proposed, is made using the preparation method of above-mentioned polymerization ferric acetate.
Preferably, its three-dimensional structure with tufted and stratiform.
The above-mentioned polymerization ferric acetate that the present invention is also proposed is used for the application of Removal of Phosphorus in Wastewater.
The present invention compared with prior art, has the advantages that：
(1) present invention is used as controlling pH agent using acetic acid, it is to avoid using the sulfate ions of introducing such as sulfuric acid, hydrochloric acid and
The corrosion to equipment such as chlorion, causes water treatment agent polymerization ferric acetate formation to contain while acetate ion is introduced as counter ion
There are the tufted and the three-dimensional structure of stratiform of the groups such as-OH, Fe-O, C-C ,-COO, flocculating property is greatly improved；
(2) titanium powder plant of China produces substantial amounts of accessory substance ferrous sulfate heptahydrate every year, makes production cost of the present invention low
It is honest and clean；
(3) present invention gained polymerization ferric acetate has the ability that bridging was caught and adsorbed in very strong electrical neutralization, net, to phosphorous
Waste water goes the turbid rate up to more than 95%, and dephosphorization rate is up to more than 93%.
Brief description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph of the gained polymerization ferric acetate of the embodiment of the present invention 1.
Fig. 2 is the infrared spectrogram of the gained polymerization ferric acetate of the embodiment of the present invention 1.
Fig. 3 is that 1-3 of the embodiment of the present invention goes turbid rate and dephosphorization rate to compare in polymerization ferric acetate obtained by differential responses temperature
Figure.
Fig. 4 is that the embodiment of the present invention 1,4,5 goes turbid rate and dephosphorization rate ratio in polymerization ferric acetate obtained by the differential responses time
Relatively scheme.
Fig. 5 is going for polymerization ferric acetate obtained by 1,6,7 mol ratio in different ferrous ions and acetic acid of the embodiment of the present invention
Turbid rate and dephosphorization rate compare figure.
Fig. 6 is that the gained polymerization ferric acetate of the embodiment of the present invention 8 goes turbid rate and dephosphorization rate to compare figure in the different sedimentation times.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
Under the conditions of room temperature (15-25 DEG C), copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water,
Wherein ferrous ion concentration is 1.80mol/L；Continue to sequentially add glacial acetic acid in whipping process and potassium chlorate is well mixed and obtained
The mol ratio of mixed solution, its ferrous ions and acetic acid is 1：4.0, iron ion and potassium chlorate mol ratio are 5.6：1；Then put
6h is reacted in temperature is 60 DEG C of thermostat water bath, foreign ion is removed and obtains product liquid polymerization ferric acetate russet.
By the gained product liquid of embodiment 1 in 50 DEG C of drying, the shape characteristic of obtained sample is swept using model SU1510
Retouch electron microscope (SEM) and Shimadzu Nicolet-380 Fourier infrared spectrographs are analyzed.
Fig. 1 is the SEM photograph of the gained polymerization ferric acetate of embodiment 1, it can be seen that polymerization ferric acetate shows tufted and stratiform
Shape characteristic.
Fig. 2 is the infrared spectrogram of the gained polymerization ferric acetate of embodiment 1, it can be seen that infrared absorption peak is clearly present-
The groups such as OH, Fe-O, C-C ,-COO.
Above-mentioned polymerization ferric acetate is used to handle the waste water containing phosphorus concentration is 6mg/L, the pH of waste water is 7.76, and flocculant is used
Measure as 24mg/L, 2min is quickly stirred with 250r/min, then 15min is mixed slowly with 60r/min, settle 20min.It goes turbid rate
For 98.2%, dephosphorization rate is 95.9%.
Embodiment 2
Under the conditions of room temperature (15-25 DEG C), copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water,
Wherein ferrous ion concentration is 1.90mol/L；Continue to sequentially add glacial acetic acid in whipping process and potassium chlorate is well mixed and obtained
The mol ratio of mixed solution, its ferrous ions and acetic acid is 1：4.0, iron ion and potassium chlorate mol ratio are 5.5：1；Then put
6h is reacted in temperature is 50 DEG C of thermostat water bath, foreign ion is removed and obtains product liquid polymerization ferric acetate russet.
Above-mentioned polymerization ferric acetate is used to handle the waste water containing phosphorus concentration is 6mg/L, the pH of waste water is 7.76, and flocculant is used
Measure as 24mg/L, 2min is quickly stirred with 250r/min, then 15min is mixed slowly with 60r/min, settle 20min.It goes turbid rate
For 96.6%, dephosphorization rate is 94.3%.
Embodiment 3
Under the conditions of room temperature (15-25 DEG C), copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water,
Wherein ferrous ion concentration is 1.85mol/L；Continue to sequentially add glacial acetic acid in whipping process and potassium chlorate is well mixed and obtained
The mol ratio of mixed solution, its ferrous ions and acetic acid is 1：4.0, iron ion and potassium chlorate mol ratio are 5.55：1；Then
It is placed in the thermostat water bath that temperature is 70 DEG C and reacts 6h, removes foreign ion and obtain product liquid polymerization acetic acid russet
Iron.
Above-mentioned polymerization ferric acetate is used to handle the waste water containing phosphorus concentration is 6mg/L, the pH of waste water is 7.76, and flocculant is used
Measure as 24mg/L, 2min is quickly stirred with 250r/min, then 15min is mixed slowly with 60r/min, settle 20min.It goes turbid rate
For 96%, dephosphorization rate is 93.7%.
Embodiment 4
Under the conditions of room temperature (15-25 DEG C), copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water,
Wherein ferrous ion concentration is 1.82mol/L；Continue to sequentially add glacial acetic acid in whipping process and potassium chlorate is well mixed and obtained
The mol ratio of mixed solution, its ferrous ions and acetic acid is 1：4.0, iron ion and potassium chlorate mol ratio are 5.58：1；Then
It is placed in the thermostat water bath that temperature is 60 DEG C and reacts 5h, removes foreign ion and obtain product liquid polymerization acetic acid russet
Iron.
Above-mentioned polymerization ferric acetate is used to handle the waste water containing phosphorus concentration is 6mg/L, the pH of waste water is 7.76, and flocculant is used
Measure as 24mg/L, 2min is quickly stirred with 250r/min, then 15min is mixed slowly with 60r/min, settle 20min.It goes turbid rate
For 96.6%, dephosphorization rate is 94.3%.
Embodiment 5
Under the conditions of room temperature (15-25 DEG C), copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water,
Wherein ferrous ion concentration is 1.88mol/L；Continue to sequentially add glacial acetic acid in whipping process and potassium chlorate is well mixed and obtained
The mol ratio of mixed solution, its ferrous ions and acetic acid is 1：4.0, iron ion and potassium chlorate mol ratio are 5.52：1；Then
It is placed in the thermostat water bath that temperature is 60 DEG C and reacts 7h, removes foreign ion and obtain product liquid polymerization acetic acid russet
Iron.
Above-mentioned polymerization ferric acetate is used to handle the waste water containing phosphorus concentration is 6mg/L, the pH of waste water is 7.76, and flocculant is used
Measure as 24mg/L, 2min is quickly stirred with 250r/min, then 15min is mixed slowly with 60r/min, settle 20min.It goes turbid rate
For 96.4%, dephosphorization rate is 94.1%.
Embodiment 6
Under the conditions of room temperature (15-25 DEG C), copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water,
Wherein ferrous ion concentration is 1.84mol/L；Continue to sequentially add glacial acetic acid in whipping process and potassium chlorate is well mixed and obtained
The mol ratio of mixed solution, its ferrous ions and acetic acid is 1：3.5, iron ion and potassium chlorate mol ratio are 5.56：1；Then
It is placed in the thermostat water bath that temperature is 60 DEG C and reacts 6h, removes foreign ion and obtain product liquid polymerization acetic acid russet
Iron.
Above-mentioned polymerization ferric acetate is used to handle the waste water containing phosphorus concentration is 6mg/L, the pH of waste water is 7.76, and flocculant is used
Measure as 24mg/L, 2min is quickly stirred with 250r/min, then 15min is mixed slowly with 60r/min, settle 20min.It goes turbid rate
For 97.3%, dephosphorization rate is 95%.
Embodiment 7
Under the conditions of room temperature (15-25 DEG C), copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water,
Wherein ferrous ion concentration is 1.86mol/L；Continue to sequentially add glacial acetic acid in whipping process and potassium chlorate is well mixed and obtained
The mol ratio of mixed solution, its ferrous ions and acetic acid is 1：4.5, iron ion and potassium chlorate mol ratio are 5.54：1；Then
It is placed in the thermostat water bath that temperature is 60 DEG C and reacts 6h, removes foreign ion and obtain product liquid polymerization acetic acid russet
Iron.
Above-mentioned polymerization ferric acetate is used to handle the waste water containing phosphorus concentration is 6mg/L, the pH of waste water is 7.76, and flocculant is used
Measure as 24mg/L, 2min is quickly stirred with 250r/min, then 15min is mixed slowly with 60r/min, settle 20min.It goes turbid rate
For 96.6%, dephosphorization rate is 94.3%.
Embodiment 8
Under the conditions of room temperature (15-25 DEG C), copperas solution is obtained by ferrous sulfate or ferrous sulfate heptahydrate are soluble in water,
Wherein ferrous ion concentration is 1.85mol/L；Continue to sequentially add glacial acetic acid in whipping process and potassium chlorate is well mixed and obtained
The mol ratio of mixed solution, its ferrous ions and acetic acid is 1：4.0, iron ion and potassium chlorate mol ratio are 5.55：1；Then
It is placed in the thermostat water bath that temperature is 60 DEG C and reacts 6h, removes foreign ion and obtain product liquid polymerization acetic acid russet
Iron.
Above-mentioned polymerization ferric acetate is used to handle the waste water containing phosphorus concentration is 6mg/L, the pH of waste water is 7.76, and flocculant is used
Measure as 24mg/L, 2min is quickly stirred with 250r/min, then 15min is mixed slowly with 60r/min, the sedimentation time is 50min.Its
It is 95.9% to go turbid rate, and dephosphorization rate is 94.2%.(result is shown in Fig. 6)
Polymerization ferric acetate processing obtained by embodiment 1-3 is used containing waste water of the phosphorus concentration for 6mg/L, to be gone turbid rate and dephosphorization
Rate is compared, as shown in Figure 3, it is known that：Under the mol ratio of same reaction time and identical ferrous ion and acetic acid, reaction temperature
Spend for 60 DEG C when, present invention gained polymerization ferric acetate goes turbid rate and dephosphorization rate highest.
Use the gained polymerization ferric acetate processing of embodiment 1,4,5 containing waste water of the phosphorus concentration for 6mg/L, gone turbid rate and gone
Phosphorus rate is compared, as shown in Figure 4, it is known that：Under same reaction temperature and the mol ratio of ferrous ion and acetic acid, the reaction time
During for 6h, polymerization ferric acetate goes turbid rate and dephosphorization rate highest obtained by the present invention.
Use the gained polymerization ferric acetate processing of embodiment 1,6,7 containing waste water of the phosphorus concentration for 6mg/L, gone turbid rate and gone
Phosphorus rate is compared, as shown in Figure 5, it is known that：Under same reaction temperature and reaction time, the mol ratio of ferrous ion and acetic acid
For 1：When 4, polymerization ferric acetate goes turbid rate and dephosphorization rate highest obtained by the present invention.
The gained polymerization ferric acetate processing of embodiment 8 is used containing waste water of the phosphorus concentration for 6mg/L, by its different sedimentation time
Turbid rate and dephosphorization rate is gone to be compared, as shown in Figure 6, it is known that：As the sedimentation time constantly extends, dephosphorization rate is constantly raised, and
Go after turbid rate is increased to 99%, go the speedup of turbid rate to level off to 0.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (9)
1. a kind of preparation method for polymerizeing ferric acetate, it is characterised in that comprise the following steps：At room temperature by ferrous sulfate or seven water
Ferrous sulfate is soluble in water to obtain copperas solution, sequentially adds glacial acetic acid and oxidant is well mixed and obtains mixed solution,
Then water bath processing is carried out, foreign ion is removed, obtains bronzing product liquid, be then dried to obtain solid polymerization ferric acetate.
2. it polymerize the preparation method of ferric acetate according to claim 1, it is characterised in that copperas solution ferrous ions
Concentration is 1.80~1.90mol/L.
3. according to claim 1 polymerize ferric acetate preparation method, it is characterised in that in mixed solution, ferrous ion and
The mol ratio of acetic acid is 1：3.5~4.5, the mol ratio of ferrous ion and oxidant is 5.5~5.6：1.
4. according to claim 1 polymerize ferric acetate preparation method, it is characterised in that oxidant be potassium chlorate, sodium chlorate,
One or both of hydrogen peroxide combination of the above thing.
5. it polymerize the preparation method of ferric acetate according to claim 1, it is characterised in that the temperature of water bath processing is 50~70
DEG C, the time of water bath processing is 5~7h.
6. it polymerize the preparation method of ferric acetate according to claim 1, it is characterised in that drying temperature is 48~52 DEG C.
7. one kind polymerization ferric acetate, it is characterised in that using the preparation method of any one of the claim 1-6 polymerization ferric acetates
It is made.
8. it polymerize ferric acetate according to claim 7, it is characterised in that it has the three-dimensional structure of tufted and stratiform.
9. a kind of ferric acetate that polymerize as described in claim 7 or 8 is used for the application of Removal of Phosphorus in Wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192586.XA CN107082476B (en) | 2017-03-28 | 2017-03-28 | Polymeric ferric acetate and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192586.XA CN107082476B (en) | 2017-03-28 | 2017-03-28 | Polymeric ferric acetate and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN107082476A true CN107082476A (en) | 2017-08-22 |
| CN107082476B CN107082476B (en) | 2020-07-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6075392A (en) * | 1983-09-30 | 1985-04-27 | Ebara Infilco Co Ltd | Treatment of organic waste water |
| US20070042903A1 (en) * | 2005-08-18 | 2007-02-22 | Dehuan Huang | Lanthanum doping catalyst for preparing carbon nanotubes having uniform diameter and producing method thereof |
| CN104876200A (en) * | 2015-04-21 | 2015-09-02 | 深圳市世清环保科技有限公司 | Method for recycling phosphorus resource from electroless nickel plating wastewater |
| CN105271492A (en) * | 2014-07-18 | 2016-01-27 | 重庆市昂多环境治理有限责任公司 | Water purifying treatment agent |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6075392A (en) * | 1983-09-30 | 1985-04-27 | Ebara Infilco Co Ltd | Treatment of organic waste water |
| US20070042903A1 (en) * | 2005-08-18 | 2007-02-22 | Dehuan Huang | Lanthanum doping catalyst for preparing carbon nanotubes having uniform diameter and producing method thereof |
| CN105271492A (en) * | 2014-07-18 | 2016-01-27 | 重庆市昂多环境治理有限责任公司 | Water purifying treatment agent |
| CN104876200A (en) * | 2015-04-21 | 2015-09-02 | 深圳市世清环保科技有限公司 | Method for recycling phosphorus resource from electroless nickel plating wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 山东省化学研究所: "乙醛在醋酸铁催化剂存在下一步制过乙酸", 《石油化工》 * |
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