CN108128812A - A kind of iron oxide red and its preparation method and application - Google Patents
A kind of iron oxide red and its preparation method and application Download PDFInfo
- Publication number
- CN108128812A CN108128812A CN201810102969.8A CN201810102969A CN108128812A CN 108128812 A CN108128812 A CN 108128812A CN 201810102969 A CN201810102969 A CN 201810102969A CN 108128812 A CN108128812 A CN 108128812A
- Authority
- CN
- China
- Prior art keywords
- iron oxide
- oxide red
- preparation
- presoma
- present
- 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.)
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 36
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052683 pyrite Inorganic materials 0.000 claims abstract description 19
- 239000011028 pyrite Substances 0.000 claims abstract description 19
- 238000002835 absorbance Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000003818 cinder Substances 0.000 claims abstract description 6
- 239000000975 dye Substances 0.000 claims abstract description 5
- 238000001354 calcination Methods 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 239000002994 raw material Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 238000005188 flotation Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 241000972773 Aulopiformes Species 0.000 description 3
- 238000011481 absorbance measurement Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 235000019515 salmon Nutrition 0.000 description 3
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 235000013759 synthetic iron oxide Nutrition 0.000 description 1
- 229910003145 α-Fe2O3 Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/65—Chroma (C*)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/66—Hue (H*)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
The present invention provides a kind of iron oxide red and its preparation method and application, the preparation method of the iron oxide red includes the following steps：Pyrite cinder is roasted, obtains iron oxide red presoma；The iron oxide red presoma with the sulfuric acid solution that mass percentage concentration is 50%~80% is mixed, obtains mixed material；The mixed material is calcined, obtains iron oxide red.By embodiment result it is found that the iron oxide red that is prepared of the scheme provided by the invention is in the visible-range that wavelength is 400~700nm, absorbance is 0.02~0.25, its absorbance reduces, reflection enhancement, color higher are more advantageous to its application as dyestuff.
Description
Technical field
The present invention relates to iron oxide red technical fields more particularly to a kind of iron oxide red and its preparation method and application.
Background technology
Iron oxide red (also known as iron oxide red), chemical composition are α-Fe2O3, iron content 70%, oxygen-containing 30%.Synthetic iron oxide at present
There are mainly two types of red methods：Wet method and dry method, wherein wet method generally use combinations kind and oxygen using metallic iron and sulfuric acid as raw material
Change two-step process, products obtained therefrom crystallizes tiny, soft granules, but of high cost and pollution is big；And dry method is with molysite and smart iron ore etc.
It is that raw material uses high temperature oxidation roasting technique, which has the characteristics that at low cost and pollution is small.In order to further reduce into
This, using industrial ferrous contained waste residue and waste liquid as raw material preparation iron oxide red, will have and also to administer the pollution of Industrial " three Waste "
There is huge market potential.
But kermesinus is generally presented through the iron oxide red that dry process obtains using pyrite cinder as raw material in the prior art,
Shade deviation limits further development of the iron oxide red in terms of dyestuff.
Invention content
The purpose of the present invention is to provide a kind of iron oxide red and its preparation method and application, iron oxide provided by the invention
Red color is high.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical scheme：
The present invention provides a kind of preparation methods of iron oxide red, include the following steps：
Pyrite cinder is roasted, obtains iron oxide red presoma；
The iron oxide red presoma with the sulfuric acid solution that mass percentage concentration is 50%~80% is mixed, is mixed
Material；
The mixed material is calcined, obtains iron oxide red.
Preferably, the temperature of the roasting is 650~800 DEG C.
Preferably, the time of the roasting is 30~60min.
Preferably, during the roasting, air velocity is 500~800ml/ (minm2)。
Preferably, the quality of the iron oxide red presoma and the volume ratio of sulfuric acid solution are 1g：(1~3) mL.
Preferably, the temperature of the calcining is 650~750 DEG C.
Preferably, the time of the calcining is 0.5~2h.
The present invention also provides the iron oxide red that a kind of above-mentioned preparation method is prepared, the iron oxide red exists
The absorbance of 400nm~700nm is 0.02~0.25.
The present invention also provides application of the iron oxide red as dyestuff.
The present invention provides a kind of preparation methods of iron oxide red, include the following steps：Pyrite cinder is roasted,
Obtain iron oxide red presoma；The iron oxide red presoma is mixed with mass percentage concentration for 50%~80% sulfuric acid solution
It closes, obtains mixed material；The mixed material is calcined, obtains iron oxide red.The present invention is using pyrite slag as raw material head
Iron oxide red presoma is first produced, then by adding at the calcining for the sulfuric acid solution that mass percentage concentration is 50%~80%
Reason, makes the coordination of iron and valence state in the superficial layer of iron oxide red presoma change, and then improve the color and luster of iron oxide red
Degree.Embodiment the experimental results showed that, the obtained iron oxide red of the present invention in the visible-range that wavelength is 400~700nm,
Its absorbance is substantially reduced compared with absorbance of the pyrite slag in the prior art for the fired obtained iron oxide red of raw material, and reflection increases
By force, i.e. color higher.
Description of the drawings
Fig. 1 is the iron oxide red and the absorbance figure of iron oxide red presoma that the embodiment of the present invention 1 is prepared.
Specific embodiment
The present invention provides a kind of preparation methods of iron oxide red, include the following steps：
Pyrite cinder is roasted, obtains iron oxide red presoma；
The iron oxide red presoma with the sulfuric acid solution that mass percentage concentration is 50%~80% is mixed, is mixed
Material；
The mixed material is calcined, obtains iron oxide red.
The present invention roasts the pyrite slag, obtains iron oxide red presoma.The present invention is carrying out the roasting
It is preceding that flotation processing preferably is carried out to pyrite slag.The present invention handles no particular/special requirement to the flotation, using art technology
Floatation process achievees the purpose that floatation desulphurization known to personnel.It is special that the present invention does not have the source of the pyrite slag
It is required that the waste residue generated using roasting pyrite during production sulfuric acid well known to those skilled in the art.
In the present invention, the temperature of the roasting is preferably 650~800 DEG C, more preferably 680~780 DEG C, most preferably
700~750 DEG C.
In the present invention, the time of the roasting is preferably 30~60min, more preferably 35~55min, and most preferably 40
~50min.
In the present invention, during the roasting, air velocity is preferably 500~800ml/ (minm2), more preferably
For 600~750ml/ (minm2), most preferably 650~700ml/ (minm2).In the present invention, the roasting preferably exists
It is carried out in fluidized bed furnace.
After obtaining the iron oxide red presoma, the iron oxide red presoma is by the present invention with mass percentage concentration
50%~80% sulfuric acid solution mixing, obtains mixed material.In the present invention, the mass percentage concentration of the sulfuric acid solution is excellent
It is selected as 55%~75%, more preferably 58~70%, most preferably 60~65%.
In the present invention, the quality of the iron oxide red presoma and the volume ratio of sulfuric acid solution are preferably 1g：(1~3)
ML, more preferably 1g：(1.5~2.5) mL, most preferably 1g：(1.8~2.2) mL.
In the present invention, the sulfuric acid solution can promote change in calcination process iron oxide red presoma surface knot
Structure changes the coordination of iron and valence state in iron oxide red forerunner's surface layer, and then improves the color and luster of color.
The present invention is not particularly limited the mixing, can be sufficiently mixed iron oxide red presoma and sulfuric acid solution i.e.
It can.In the present invention, the mixing preferably carries out at room temperature.
After obtaining mixed material, the present invention calcines the mixed material, obtains iron oxide red.In the present invention,
The temperature of the calcining is preferably 650~750 DEG C, more preferably 680~730 DEG C, most preferably 700~710 DEG C.In the present invention
In, the time of the calcining is preferably 0.5~2 hour, more preferably 0.8~1.6 hour, most preferably 1.0~1.5 hours.
In the present invention, the calcining carries out preferably in air atmosphere.
The present invention does not have particular/special requirement to device used in the calcination process, and use is well known to those skilled in the art
Can realize calcining purpose device, can be selected specifically to calcine in tube furnace.
The present invention provides the iron oxide red that preparation method described in a kind of above-mentioned technical proposal is prepared, the iron oxide
The red absorbance in 400nm~700nm is 0.02~0.25.
The present invention provides application of the iron oxide red described in above-mentioned technical proposal as dyestuff.
A kind of iron oxide red provided by the invention and its preparation method and application is carried out in detail with reference to embodiment
Illustrate, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
By the pyrite slag after flotation in fluidized bed furnace, in 800ml/ (minm2) air velocity, at 800 DEG C, roasting
45min obtains dark brown red iron oxide red presoma；
1.0g dark brown red iron oxide red presomas with the sulfuric acid solution of 2ml 60% are mixed, are placed on tube furnace
In, 0.5h is calcined at 700 DEG C, after calcining, obtains salmon pink iron oxide red.
The iron oxide red presoma and iron oxide red that the present embodiment is prepared carry out absorbance measurement, as a result such as Fig. 1
Shown, the iron oxide red is 0.02~0.25 in the absorbance of 400nm~700nm as shown in Figure 1.The more existing skill of its absorbance
Pyrite slag is substantially reduced for the absorbance of the fired obtained iron oxide red of raw material in art, reflection enhancement, i.e. color higher.
Embodiment 2
By the pyrite slag after flotation in fluidized bed furnace, in 600ml/ (minm2) air velocity, at 650 DEG C, roasting
40min obtains brownish red iron oxide red presoma；
1.0g brownish red iron oxide red presomas with the sulfuric acid solution of 2ml 60% are mixed, are placed in tube furnace,
0.5h is calcined at 650 DEG C, obtains salmon pink iron oxide red.
Absorbance measurement is carried out to the product that the present embodiment obtains, test result and embodiment 1 are basically identical, show institute
Iron oxide red absorbance is stated significantly to drop compared with absorbance of the pyrite slag in the prior art for the fired obtained iron oxide red of raw material
It is low, reflection enhancement, i.e. color higher.
Embodiment 3
By the pyrite slag after flotation in fluidized bed furnace, in 800ml/ (minm2) air velocity, at 700 DEG C, roasting
40min obtains dark brown red iron oxide red presoma；
1.0g dark brown red iron oxide red presomas with the sulfuric acid solution of 2ml 60% are mixed, are placed on tube furnace
In, 0.5h is calcined at 750 DEG C, after calcining, obtains salmon pink iron oxide red.
Absorbance measurement is carried out to the product that the present embodiment obtains, test result and embodiment 1 are basically identical, show institute
Iron oxide red absorbance is stated significantly to drop compared with absorbance of the pyrite slag in the prior art for the fired obtained iron oxide red of raw material
It is low, reflection enhancement, i.e. color higher.
As seen from the above embodiment, the present invention provides a kind of preparation method of iron oxide red, the method is with sulphur iron
The iron oxide red that slag is produced is raw material, is mixed through persulfate solution with pyrite slag, and mixture is calcined, after calcining
Iron oxide red absorbance in the visible-range that wavelength is 400~700nm, absorbance troilite more in the prior art
Slag is substantially reduced for the absorbance of the fired obtained iron oxide red of raw material, reflection enhancement, i.e. color higher.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of preparation method of iron oxide red, includes the following steps：
Pyrite cinder is roasted, obtains iron oxide red presoma；
The iron oxide red presoma with the sulfuric acid solution that mass percentage concentration is 50%~80% is mixed, obtains mixture
Material；
The mixed material is calcined, obtains iron oxide red.
2. preparation method as described in claim 1, it is characterised in that：The temperature of the roasting is 650~800 DEG C.
3. preparation method as claimed in claim 1 or 2, it is characterised in that：The time of the roasting is 30~60min.
4. preparation method as described in claim 1, it is characterised in that：During the roasting, air velocity for 500~
800ml/(min·m2)。
5. preparation method as described in claim 1, it is characterised in that：The quality and sulfuric acid solution of the iron oxide red presoma
Volume ratio be 1g：(1~3) mL.
6. preparation method as described in claim 1, it is characterised in that：The temperature of the calcining is 650~750 DEG C.
7. preparation method as described in claim 1 or 6, it is characterised in that：The time of the calcining is 0.5~2h.
8. the iron oxide red that the preparation method described in claim 1~7 any one is prepared, it is characterised in that：The oxygen
It is 0.02~0.25 to change iron oxide red in the absorbance of 400nm~700nm.
9. application of the iron oxide red described in claim 8 as dyestuff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102969.8A CN108128812A (en) | 2018-02-01 | 2018-02-01 | A kind of iron oxide red and its preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102969.8A CN108128812A (en) | 2018-02-01 | 2018-02-01 | A kind of iron oxide red and its preparation method and application |
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|---|---|
| CN108128812A true CN108128812A (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810102969.8A Pending CN108128812A (en) | 2018-02-01 | 2018-02-01 | A kind of iron oxide red and its preparation method and application |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592049A (en) * | 2020-06-24 | 2020-08-28 | 吉林大学 | Surface treatment method of iron oxide red |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100780A (en) * | 1986-01-28 | 1987-10-07 | 淄博钴厂 | A kind of manufacture method of ferric oxide red colorant |
| CN106745193A (en) * | 2016-12-09 | 2017-05-31 | 东北大学 | The method that iron content zinc-containing sludge recovery prepares zinc hydroxide and dyestuff level iron oxide red |
-
2018
- 2018-02-01 CN CN201810102969.8A patent/CN108128812A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100780A (en) * | 1986-01-28 | 1987-10-07 | 淄博钴厂 | A kind of manufacture method of ferric oxide red colorant |
| CN106745193A (en) * | 2016-12-09 | 2017-05-31 | 东北大学 | The method that iron content zinc-containing sludge recovery prepares zinc hydroxide and dyestuff level iron oxide red |
Non-Patent Citations (1)
| Title |
|---|
| 刘良栋等: "《固废处理工程技术》", 31 December 2009, 华中师范大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592049A (en) * | 2020-06-24 | 2020-08-28 | 吉林大学 | Surface treatment method of iron oxide red |
| CN111592049B (en) * | 2020-06-24 | 2021-05-25 | 吉林大学 | Surface treatment method of iron oxide red |
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Application publication date: 20180608 |
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