CN207468193U - The cleaning system of iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid - Google Patents
The cleaning system of iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid Download PDFInfo
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- CN207468193U CN207468193U CN201721415960.XU CN201721415960U CN207468193U CN 207468193 U CN207468193 U CN 207468193U CN 201721415960 U CN201721415960 U CN 201721415960U CN 207468193 U CN207468193 U CN 207468193U
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Abstract
The utility model discloses the cleaning systems that iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid, including absorbing liquid circulating slot, first class purification slot, secondary purification slot, turbid slot, surge tank, oxidation analysis iodine slot, filtering vehicle, smart Iod R kettle, smart iodine separating tank, the absorbing liquid circulating slot is connect by absorbing liquid circulating pump with first class purification slot, the first class purification slot is connect respectively with secondary purification slot and turbid slot, the first class purification slot is connect respectively with turbid slot and oxidation analysis iodine slot, and the turbid slot is connect respectively with absorbing liquid circulating slot and surge tank.The utility model has increased the cleaning system of recycling iodine newly on the basis of original thick iodine system of recycling, purification can be carried out to recycling thick iodine, improve the use scope and economic value for recycling thick iodine, avoid the wasting of resources, with extensive and positive social benefit, the present apparatus is simple for process, at low cost simultaneously, can be applied in phosphate mine and phosphorous chemical industry enterprise, has extensive and positive social benefit.
Description
Technical field
The utility model belongs to iodine reclaimer field, is related to recycling the purification system of iodine in a kind of phosphoric acid by wet process and fluosilicic acid
System.
Background technology
At present, phosphorous chemical industry enterprise is effectively recycled by handling phosphoric acid workshop phosphoric acid,diluted containing iodine and fluosilicic acid containing iodine
The ultralow grade iodine resource of phosphorus ore association, avoids the unordered discharge of iodine, while achievees the purpose that exhaust gas, waste water comprehensive management of environmental protection,
For example, application No. is 201310337084.3 Chinese patent disclose one kind from fluosilicic acid containing iodine and phosphoric acid,diluted containing iodine simultaneously
The method for recycling iodine is with air blowout method recycling iodine, it is characterised in that：Iodine fluosilicic acid will be contained and phosphoric acid,diluted containing iodine is mixed to get
After mixed acid containing iodine, a set of retracting device is shared, adds in oxidant reaction, normal temperature air blowout molecular iodine is reused, is blown into sky
Volume ratio, that is, gas liquid ratio of gas and the liquid of mixed acid containing iodine is relatively low, and mixed acid can be detached phosphoric acid and fluosilicic acid by concentration, should
The iodine that method is recycled contains the impurity such as a large amount of fluorides, phosphate and ardealite, cannot be used directly for food medicine containing in iodine
Mesosome produces, and reduces the product benefit of recycling iodine.At present, thick iodine deep purifying need to pass through sublimed method, fusion method etc., production technology
Complexity, cost are higher, and iodine loss is larger.
Utility model content
In order to solve the above technical problems, the utility model provides the purification that iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid
System can solve the problems, such as that the impurity of prior art recycling iodine is more.
The utility model is achieved by the following technical programs.
The cleaning system of iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid provided by the utility model, is recycled including absorbing liquid
Slot, first class purification slot, secondary purification slot, turbid slot, surge tank, oxidation analysis iodine slot, filtering vehicle, smart Iod R kettle, smart iodine separation
Slot, the absorbing liquid circulating slot are connect by absorbing liquid circulating pump with first class purification slot, the first class purification slot respectively with two level
Purification tank is connected with turbid slot, and the secondary purification slot is connect respectively with turbid slot and oxidation analysis iodine slot, the turbid slot difference
Connect with absorbing liquid circulating slot and surge tank, it is described oxidation analysis iodine slot with filtering vehicle connect, it is described filter vehicle respectively with absorbing liquid
Circulating slot is connected with smart Iod R kettle, and the essence Iod R kettle is connect with smart iodine separating tank.
This cleaning system further includes dioxygen water storage tank and concentrated sulfuric acid storage tank, and the dioxygen water storage tank connects with oxidation analysis iodine slot
It connects, the concentrated sulfuric acid storage tank is connect with smart Iod R kettle.
This cleaning system further includes device for recovering tail gas and tail gas washing tower, described device for recovering tail gas one end respectively with essence
Iod R kettle is connected with smart iodine separating tank, and the other end is connect with tail gas washing tower.
Heater is equipped in the essence Iod R kettle, the heater is connect with jet chimney.
The filtering vehicle includes iodine filter and filtrate receiver, and iodine filter is located above filtrate receiver, iodine filter and oxidation
The connection of iodine slot is analysed, filtrate receiver is connect with absorbing liquid circulating slot.
The first class purification slot, secondary purification slot, turbid slot, surge tank, oxidation, which are analysed in iodine slot, is equipped with agitating device.
The beneficial effects of the utility model are：On the basis of original thick iodine system of recycling, the net of recycling iodine has been increased newly
Change system can carry out purification to recycling thick iodine, improve the use scope and economic value for recycling thick iodine, avoid resource unrestrained
Take, there is extensive and positive social benefit, while the present apparatus is simple for process, at low cost, can be applied to phosphate mine and phosphorous chemical industry
In enterprise, there is extensive and positive social benefit.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
In figure：1- absorbing liquid circulating slots, 2- first class purification slots, 3- secondary purification slots, 4- turbid slots, 5- surge tanks, 6- oxygen
Change analysis iodine slot, 7- dioxygen water storage tanks, 8- filtering vehicles, 9- essence Iod R kettles, 10- concentrated sulfuric acid storage tanks, 11- essence iodine separating tanks, 12- tails
Gas recovering device.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
As shown in Figure 1, the purifier of iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid, including absorbing liquid circulating slot 1, one
Grade purification tank 2, secondary purification slot 3, turbid slot 4, surge tank 5, oxidation analysis iodine slot 6, filtering vehicle 8, smart Iod R kettle 9, smart iodine point
From slot 11, the absorbing liquid circulating slot 1 is connect by absorbing liquid circulating pump with first class purification slot 2, and the first class purification slot 2 is distinguished
It is connect with secondary purification slot 3 and turbid slot 4, the secondary purification slot 3 is connect respectively with turbid slot 4 and oxidation analysis iodine slot 6, described
Turbid slot 4 is connect respectively with absorbing liquid circulating slot 1 and surge tank 5, and the oxidation analysis iodine slot 6 is connect with filtering vehicle 8, the filtering
Vehicle 8 is connect respectively with absorbing liquid circulating slot 1 and smart Iod R kettle 9, and the essence Iod R kettle 9 is connect with smart iodine separating tank 11, from
Iodine absorbing liquid is delivered to absorption by the thick iodine recycled in phosphoric acid by wet process and fluosilicic acid after reducing agent cycle washing absorption enrichment
In liquid circulating slot 1, iodine absorbing liquid is pumped into first class purification slot 2 by absorbing liquid circulating pump, and metered into iodine absorbing liquid
Calcium carbonate, the calcium ion in calcium carbonate are reacted with fluorine ion in iodine absorbing liquid, generate calcium fluoride precipitate, iodine absorbing liquid after reaction
The bypass of clear liquid from first class purification slot 2 is put into secondary purification slot 3, and bottom turbid is put into turbid slot 4, then to secondary purification slot 3
In iodine absorbing liquid in metered aluminium salt, aluminium ion in aluminium salt in iodine absorbing liquid fluorine ion, lead ion, mercury ion,
The reactions such as arsenic ion generate the reactant of slightly solubility, and the bypass of purified iodine absorbing liquid clear liquid from secondary purification slot 3 is put into oxygen
Change analysis iodine slot 6, bottom turbid is put into turbid slot 4, and for the iodine absorbing liquid in turbid slot 4 after precipitation, clear liquid is put into suction from bypass
It receives and is recycled in liquid circulating slot 1, sediment is put by 4 bottom of turbid slot in surge tank 5, is pumped after sizing mixing by slurry
Toward phosphoric acid workshop extraction tank, the metered hydrogen peroxide into oxidation analysis iodine slot 6, hydrogen peroxide aoxidizes the iodide ion in iodine absorbing liquid
Iodine molecule is generated, the iodine crystallization and iodine absorbing liquid being precipitated after reaction are analysed 6 bottom of iodine slot by oxidation and be discharged into filtering vehicle 8, filtering
A filtrate part afterwards is sent to absorbing liquid circulating slot 1, and another part is sent to the oxidation trough in phosphoric acid workshop, to improve hydrogen peroxide
Utilization rate reduces production cost, and iodine crystallization is sent in smart Iod R kettle 9, and add in the concentrated sulfuric acid into smart Iod R kettle 9, and
It is passed through steam to carry out being warming up to 140 DEG C to 160 DEG C, under the temperature condition, iodine sinks naturally for liquid and due to density ratio sulfuric acid is big
Drop, and by the concentrated sulfuric acid absorb iodine in moisture content after, the purity of iodine can be improved, passed through under smart Iod R kettle by purified iodine
Portion is discharged into smart iodine separating tank 11, and into after being separated by filtration, iodine crystallization carries out finished product packing, and slag liquid and filtrate are sent to the tune in phosphoric acid workshop
Stock tank recycles.
This cleaning system further includes dioxygen water storage tank 7 and concentrated sulfuric acid storage tank 10, the dioxygen water storage tank 7 and oxidation analysis iodine slot
6 connections, hydrogen peroxide are added in from dioxygen water storage tank 7 in oxidation analysis iodine slot 6 after metering, and the concentrated sulfuric acid storage tank 10 and smart iodine are anti-
Kettle 9 is answered to connect, while concentrated sulfuric acid storage tank 10 is also connect with sulfuric acid, the concentrated sulfuric acid is pumped into from sulfuric acid library in concentrated sulfuric acid storage tank 10, when
When smart Iod R kettle 9 is needed using the concentrated sulfuric acid, the concentrated sulfuric acid is added in by metering pump in smart Iod R kettle 9.
This cleaning system further includes device for recovering tail gas 12 and tail gas washing tower, 12 one end of device for recovering tail gas difference
It is connect with smart Iod R kettle 9 and smart iodine separating tank 11, the other end is connect with tail gas washing tower, due to smart Iod R kettle 9 and smart iodine
Separating tank 11 easily generates steam, contains sulfuric acid and iodine in steam, has corrosivity, needs to use device for recovering tail gas 12 by tail
Gas, which is put together, to be uniformly processed, environment protection, and improves the service life of equipment.
Heater is equipped in the essence Iod R kettle 9, the heater is connect with jet chimney, and steam pipe passes through heater
The concentrated sulfuric acid in smart Iod R kettle 9 and iodine are heated, iodine is made to become liquid, since the density of the density ratio concentrated sulfuric acid of iodine is big
And natural subsidence, convenient for being detached to iodine, after heating, steam becomes liquid water, can empty or introduce trench.
The filtering vehicle 8 includes iodine filter and filtrate receiver, and iodine filter is located above filtrate receiver, iodine filter and oxidation
Analysis iodine slot 6 connects, and filtrate receiver is connect with absorbing liquid circulating slot 1, filtering vehicle 8 by the strainer on iodine filter, by iodine crystallization with
Iodine absorbing liquid is detached, and filtrate is flowed into filtrate receiver after separation, and iodine crystallization is stayed on iodine filter.
The first class purification slot 2, secondary purification slot 3, turbid slot 4, surge tank 5, oxidation, which are analysed, is equipped with stirring dress in iodine slot 6
It puts, agitating device can make the reaction in each slot more abundant.
Claims (6)
1. the cleaning system of iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid, it is characterised in that：Including absorbing liquid circulating slot (1),
First class purification slot (2), secondary purification slot (3), turbid slot (4), surge tank (5), oxidation analysis iodine slot (6), filtering vehicle (8), smart iodine
Reaction kettle (9), smart iodine separating tank (11), the absorbing liquid circulating slot (1) are connected by absorbing liquid circulating pump and first class purification slot (2)
It connects；The first class purification slot (2) connect respectively with secondary purification slot (3) and turbid slot (4)；The secondary purification slot (3) is respectively
It is connect with turbid slot (4) and oxidation analysis iodine slot (6)；The turbid slot (4) respectively with absorbing liquid circulating slot (1) and surge tank (5)
Connection；The oxidation analysis iodine slot (6) connect with filtering vehicle (8)；It is described filtering vehicle (8) respectively with absorbing liquid circulating slot (1) and essence
Iod R kettle (9) connects；The essence Iod R kettle (9) connect with smart iodine separating tank (11).
2. the cleaning system of iodine is recycled in a kind of phosphoric acid by wet process according to claim 1 and fluosilicic acid, it is characterised in that：Also
Including dioxygen water storage tank (7) and concentrated sulfuric acid storage tank (10), the dioxygen water storage tank (7) connect with oxidation analysis iodine slot (6), described dense
Sulfuric acid storage tank (10) is connect with smart Iod R kettle (9).
3. the cleaning system of iodine is recycled in a kind of phosphoric acid by wet process according to claim 1 and fluosilicic acid, it is characterised in that：Also
Including device for recovering tail gas (12) and tail gas washing tower, described device for recovering tail gas (12) one end respectively with smart Iod R kettle (9)
It is connected with smart iodine separating tank (11), the other end is connect with tail gas washing tower.
4. the cleaning system of iodine is recycled in a kind of phosphoric acid by wet process according to claim 1 and fluosilicic acid, it is characterised in that：Institute
It states and heater is equipped in smart Iod R kettle (9), the heater is connect with jet chimney.
5. the cleaning system of iodine is recycled in a kind of phosphoric acid by wet process according to claim 1 and fluosilicic acid, it is characterised in that：Institute
It states filtering vehicle (8) and includes iodine filter and filtrate receiver, iodine filter is located above filtrate receiver, iodine filter and oxidation analysis iodine slot
(6) it connects, filtrate receiver is connect with absorbing liquid circulating slot (1).
6. the cleaning system of iodine is recycled in a kind of phosphoric acid by wet process according to claim 1 and fluosilicic acid, it is characterised in that：Institute
It states interior be equipped with of first class purification slot (2), secondary purification slot (3), turbid slot (4), surge tank (5), oxidation analysis iodine slot (6) and stirs dress
It puts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721415960.XU CN207468193U (en) | 2017-10-30 | 2017-10-30 | The cleaning system of iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721415960.XU CN207468193U (en) | 2017-10-30 | 2017-10-30 | The cleaning system of iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207468193U true CN207468193U (en) | 2018-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721415960.XU Expired - Fee Related CN207468193U (en) | 2017-10-30 | 2017-10-30 | The cleaning system of iodine is recycled in a kind of phosphoric acid by wet process and fluosilicic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207468193U (en) |
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2017
- 2017-10-30 CN CN201721415960.XU patent/CN207468193U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180608 Termination date: 20211030 |