CN106315671A - System and method for producing titanium dioxide sizing by treatment chlorination process - Google Patents
System and method for producing titanium dioxide sizing by treatment chlorination process Download PDFInfo
- Publication number
- CN106315671A CN106315671A CN201610832110.3A CN201610832110A CN106315671A CN 106315671 A CN106315671 A CN 106315671A CN 201610832110 A CN201610832110 A CN 201610832110A CN 106315671 A CN106315671 A CN 106315671A
- Authority
- CN
- China
- Prior art keywords
- peplos
- titanium dioxide
- slurry
- filter pressing
- outlet
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/08—Drying; Calcining ; After treatment of titanium oxide
Abstract
The invention discloses a system and a method for titanium dioxide sizing by the treatment chlorination process. The system comprises a filter press washing device having a titanium dioxide sizing inlet, a filter cake outlet and a filtrate outlet; a settling tank having a filtrate inlet, a flocculation inlet, a supernatant outlet and a bottom sizing outlet; a sizing buffer tank having a buffer tank inlet port, a first film material inlet and a buffer tank outlet connected with the bottom sizing outlet; a filming tank having a first film sizing inlet, a second film sizing inlet and a storage tank outlet. The storage tank inlet is connected with the buffer outlet, and the storage tank outlet is connected with the inlet of the filter press storage tank. The system also comprises the filter press storage tank having the storage tank inlet, the second film material inlet and the storage tank outlet. The storage tank inlet is connected with the buffer tank outlet, and the storage tank outlet is connected with the titanium dioxide sizing inlet. The system not only improves the recovery rate of titanium, but also can achieve the control of titanium dioxide product quality and ensure the continuity of production.
Description
Technical field
The invention belongs to metallurgical technology field, specifically, the present invention relates to a kind of chloridising that processes and produce titanium dioxide slurry
The system and method for material.
Background technology
CN 1066043 discloses a kind of process preparing Rutile type titanium dioxide, comprising: 1) by high titanium slag with
Petroleum coke is put in chlorination furnace after uniformly mixing, and is passed through chlorine and carries out fluidizing chlorination at a temperature of 800～900 DEG C；2) to chlorination
After the rough titanium tetrachloride that obtains carry out separating-purifying and remove the impurity such as magnesium, ferrum, silicon and vanadium, obtain refining titanic chloride；3) will
The refining titanic chloride liquid prepared, in vaporizer, is converted into gas phase, and is preheated to 450～800 DEG C；4) by gas phase four chlorination
Titanium supplies after mixing with a small amount of compound modifying agent gas phase aluminum chloride to oxidation furnace, and oxygen enters through plasma generator heating
Oxidation furnace, at a temperature of 1300～1500 DEG C, carries out oxidation reaction in less than 0.1 second and generates solid phase titanium dioxide；5) rapid
Titanium dioxide solids powder removed reaction zone and makes reaction heat remove rapidly, collecting titanium dioxide and chlorine, and by chlorine
It is back to chlorination furnace；6) the titanium dioxide granule powder of collection is beaten into liquid, sorts through two-stage, thin less than 1 micron
Grain titanium dioxide carries out post processing again, the polished re-grading of coarse granule obtained；7) make used additives at a temperature of 50～70 DEG C
Under the conditions of pH=7～8, fine grained titanium dioxide is carried out peplos process；8) titanium dioxide slurries after being processed by peplos carries out two
Secondary filtration washing, feeds and aqueous is less than 45%, and discharging is aqueous is less than 1%；9) to by twice filtration at a temperature of 120～160 DEG C
After carry out micronizing after the filtration cakes torrefaction that obtains, obtain particle mean size below 0.3 μm, account for the titanium dioxide product of 70%.
But the titanium dioxide slurries after processing peplos carries out twice filtration washing process and produces the turbidity of waste water relatively
Height, the cleaning of filter cloth is more frequent, so the subsider flocculation of operation deposited substantial amounts of titanium dioxide after washing, part is not wadded a quilt with cotton
Solidifying titanium dioxide completely enters sewage mixing channel, accident groove and the raw water box of saliferous workshop section with waste water, and then makes sewage mix
Groove, accident groove and raw water box also deposited substantial amounts of titanium dioxide, to carry out intermediate products in production process of titanium pigment simultaneously
Detection is analyzed, and the sample returned after sample presentation analysis detection is heaped, and have impact on the continuous operation of subsequent production, the slurry of this part simultaneously
Material can not recycle, and causes titanium recovery rate low.
Therefore, the technology of existing process Titanium dioxide slurry is further improved.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention
One purpose is that proposing a kind of chloridising that processes produces the system and method for Titanium dioxide slurry, uses this system to not only increase
The response rate of titanium, and can realize the controlled of titanium dioxide product quality and ensure the seriality produced.
In one aspect of the invention, the present invention proposes a kind of chloridising that processes and produces the system of Titanium dioxide slurry.Root
According to embodiments of the invention, described system includes:
Filter pressing wash mill, described filter pressing wash mill has Titanium dioxide slurry entrance, filtered solid outlet and filtrate (liquid, and
Be suitable to Titanium dioxide slurry is carried out filter pressing carrying out washing treatment, in order to obtain filter cake and filtrate；
Subsider, described subsider has filtrate inlet, flocculant entrance, supernatant outlet and bottom slurry outlet, institute
State filtrate inlet to be connected with described filtrate (liquid, and be suitable to carry out mixing sedimentation with flocculant by described filtrate, in order on obtaining
Clear liquid and bottom slurry；
Slurry surge tank, described slurry surge tank expects that entrance and surge tank go out after having surge tank charging aperture, the first peplos
Material mouth, described surge tank charging aperture is connected with described bottom slurry outlet, described surge tank discharging opening and described Titanium dioxide slurry
Entrance is connected, and is suitable to expect to mix by after described bottom slurry and the first peplos, in order to obtain mixed slurry, and by described
Mixed slurry is back to described filter pressing wash mill and carries out described filter pressing carrying out washing treatment；
Peplos tank, described peplos tank is expected after expecting entrance and the second peplos before expecting entrance, the second peplos before having the first peplos
Outlet, and be suitable to material before material before the first peplos and the second peplos is carried out peplos process, in order to expect after obtaining the second peplos；And
Storage tank before filter pressing, expects entrance and outlet, described second peplos after storage tank has the second peplos before described filter pressing
Rear material entrance is connected with material outlet after described second peplos, and described outlet is connected with described Titanium dioxide slurry entrance, and suitable
Expect after storing described second peplos, and by material supply after described peplos to described filter pressing wash mill.
Thus, process chloridising according to embodiments of the present invention produces the system of Titanium dioxide slurry by chloridising being produced
Filtrate supply after Titanium dioxide slurry carries out filter pressing washing carries out mixing settlement treatment with flocculant to subsider, and uses
The bottom slurry obtained in subsider and peplos operation back segment intermediate products are carried out obtaining during detection is analyzed by serosity surge tank
To sampling returning charge mix after supply and to filter pressing wash mill, carry out filter pressing carrying out washing treatment, simultaneously by peplos operation leading portion
The normal supplied materials that produces sampling in returning charge and peplos front-end-of-line that intermediate products carry out obtaining during detection is analyzed is through peplos
After storage tank before filter pressing, it is back to filter pressing wash mill after process process, can be efficient recovery subsider not flocculate completely
Titanium dioxide, such that it is able to be prevented effectively from the titanium dioxide completely of not flocculating to enter sewage mixing channel, accident Cao Ji saliferous workshop section
In raw water box, and peplos operation leading portion can be solved and sampling that back segment intermediate products carry out obtaining during detection is analyzed is returned
Material bulk deposition and the difficult problem of wastage of material that causes, and then not only increase the response rate of titanium, and can realize titanium white
The seriality that the controlled and guarantee of powder product quality produces.
It addition, process chloridising according to the above embodiment of the present invention produce Titanium dioxide slurry system can also have as
Lower additional technical characteristic:
In some embodiments of the invention, the system of described process chloridising production Titanium dioxide slurry farther includes:
First sampling material-returning device, expects after described first peplos that entrance is connected with described first sampling material-returning device, and described first
Sampling material-returning device is arranged on titanium dioxide peplos operation back segment.Thus, it is possible to significantly improve the response rate of titanium.
In some embodiments of the invention, the system of described process chloridising production Titanium dioxide slurry farther includes:
Second sampling material-returning device, described second sampling material-returning device is connected with material entrance before described second peplos, described second sampling
Material-returning device is arranged on titanium dioxide peplos operation leading portion.Thus, it is possible to improve the response rate of titanium further.
In some embodiments of the invention, the system of described process chloridising production Titanium dioxide slurry farther includes:
Dodging equipment for drying, described sudden strain of a muscle equipment for drying is connected with described filtered solid outlet, and is suitable to described filter cake is carried out flash drying process, in order to
Obtain titanium dioxide coating granule.
In another aspect of the invention, the present invention proposes the above-mentioned process chloridising of a kind of employing and produces Titanium dioxide slurry
System enforcement process chloridising produce Titanium dioxide slurry method.According to embodiments of the invention, described method includes:
Titanium dioxide slurry supply is carried out filter pressing carrying out washing treatment to described filter pressing wash mill, in order to obtain filter cake and filter
Liquid；
Carry out mixing sedimentation with flocculant supply to described subsider by described filtrate, in order to obtain supernatant and bottom
Slurry；
Material supply after described bottom slurry and the first peplos is mixed to described slurry surge tank, in order to mixed
Close slurry, and described mixed slurry is back in described filter pressing wash mill carry out described filter pressing carrying out washing treatment；
Will before the first peplos before material and the second peplos material supply to described peplos tank carries out peplos process, in order to obtain the
Expect after two peplos；And
Material supply will store to storage tank before described filter pressing after described second peplos, and before will be stored in described filter pressing
After the second peplos in storage tank, material supply carries out described filter pressing carrying out washing treatment to described filter pressing wash mill.
It addition, process chloridising according to the above embodiment of the present invention produce Titanium dioxide slurry method can also have as
Lower additional technical characteristic:
Thus, process chloridising according to embodiments of the present invention produces the method for Titanium dioxide slurry by chloridising being produced
Filtrate supply after Titanium dioxide slurry carries out filter pressing washing carries out mixing settlement treatment with flocculant to subsider, and uses
The bottom slurry obtained in subsider and peplos operation back segment intermediate products are carried out obtaining during detection is analyzed by serosity surge tank
To sampling returning charge mix after supply and to filter pressing wash mill, carry out filter pressing carrying out washing treatment, simultaneously by peplos operation leading portion
The normal supplied materials that produces sampling in returning charge and peplos front-end-of-line that intermediate products carry out obtaining during detection is analyzed is through peplos
After storage tank before filter pressing, it is back to filter pressing wash mill after process process, can be efficient recovery subsider not flocculate completely
Titanium dioxide, such that it is able to be prevented effectively from the titanium dioxide completely of not flocculating to enter sewage mixing channel, accident Cao Ji saliferous workshop section
In raw water box, and peplos operation leading portion can be solved and sampling that back segment intermediate products carry out obtaining during detection is analyzed is returned
Material bulk deposition and the difficult problem of wastage of material that causes, and then not only increase the response rate of titanium, and can realize titanium white
The seriality that the controlled and guarantee of powder product quality produces.
In some embodiments of the invention, the sampling that after described first peplos, material comes from peplos operation back segment is returned
Material.
In some embodiments of the invention, expect before described first peplos that coming from normal production in peplos operation leading portion comes
Material, before described second peplos, material comes from the sampling returning charge in peplos operation leading portion.Thus, it is possible to significantly improve the recovery of titanium
Rate.
In some embodiments of the invention, the method for described process chloridising production Titanium dioxide slurry farther includes:
The supply of described filter cake is carried out flash drying process to sudden strain of a muscle equipment for drying, in order to obtain titanium dioxide coating granule.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Substantially with easy to understand, wherein:
Fig. 1 is to process chloridising according to an embodiment of the invention to produce the system structure schematic diagram of Titanium dioxide slurry；
Fig. 2 is the system structure signal that the process chloridising according to further embodiment of the present invention produces Titanium dioxide slurry
Figure；
Fig. 3 is the system structure signal that the process chloridising according to another embodiment of the present invention produces Titanium dioxide slurry
Figure；
Fig. 4 is the system structure signal that the process chloridising according to another embodiment of the present invention produces Titanium dioxide slurry
Figure；
Fig. 5 is to process chloridising according to an embodiment of the invention to produce the method flow schematic diagram of Titanium dioxide slurry；
Fig. 6 is the method flow signal that the process chloridising according to further embodiment of the present invention produces Titanium dioxide slurry
Figure.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " up time
Pin ", " counterclockwise ", " axially ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description rather than instruction or imply that the device of indication or element must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For those of ordinary skill in the art
For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In one aspect of the invention, the present invention proposes a kind of chloridising that processes and produces the system of Titanium dioxide slurry.Need
It is explained that if no special instructions, herein " chloridising production Titanium dioxide slurry " refers in disclosed patent CN 1066043
Peplos is processed after titanium dioxide slurries carry out twice filtration washing after the filtrate that obtains.
According to embodiments of the invention, with reference to Fig. 1-3, this system includes: filter pressing wash mill 100, subsider 200, slurry
Storage tank 500 before material surge tank 300, peplos tank 400 and filter pressing.
According to embodiments of the invention, filter pressing wash mill 100 has Titanium dioxide slurry entrance 101, filtered solid outlet 102 and
Filtrate (liquid 103, and be suitable to Titanium dioxide slurry is carried out filter pressing carrying out washing treatment, obtain filter cake and filtrate.It should be noted that this
The concrete operations condition of filter pressing washing can be selected by skilled person according to actual needs.
According to embodiments of the invention, subsider 200 has filtrate inlet 201, flocculant entrance 202, supernatant outlet
203 and bottom slurry outlet 204, filtrate inlet 201 is connected with filtrate (liquid 103, and is suitable to filtrate obtained above and wadding
Solidifying agent carries out mixing sedimentation, such that it is able to obtain supernatant and bottom slurry.During Gai, containing titanium in filtrate obtained above
White lead, under the effect of flocculant, bottom most titanium dioxide flocculating sedimentation to subsider, and does not flocculates along with part
Titanium dioxide is also deposited to bottom subsider completely, obtains in supernatant containing partial impurities (such as Na2SO4, the impurity such as NaCl)
Supply to brine waste workshop section processes, and containing flocculating completely and the two parts completely that do not flocculate in the bottom slurry obtained
Titanium dioxide.
According to one embodiment of present invention, the filtrate collection that pressure filter produces filter in filtrate tank, filtrate tank
Liquid mixes through static mixer after adding flocculant when conveying by distribution ring, adds aluminum sulfate solution upon mixing, adds
Subsider flocculating sedimentation is entered after adding.Flocculant and aluminum sulfate are added and can be added by Frequency pump, and addition can basis
Flow of filtrate is adjusted, concrete, and the addition of flocculant PAMA is 2.5～30L/m3, aluminum sulfate
Addition is 0.5-5L/m3, thereby may be ensured that final discharge filtrate reaches requirement.Flocculation can select aluminum sulfate, flocculant or
The methods such as aluminum sulfate and flocculant mixing are flocculated, and preferably flocculant and aluminum sulfate is used in mixed way, and wherein flocculant can be
The acid of aluminum sulfate, aluminum chloride, polyaluminium sulfate, aluminium polychlorid, PAMA, anion pp, anion are gathered
At least one in sodium acrylate and anion pp acid calcium.Inventor finds, uses the method to be substantially better than other notable
Improve the flocculating sedimentation effect of titanium dioxide.
It should be noted that the addition of flocculant, aluminum sulfate can use variable frequency pump to add, filtrate specifically can be passed through
Middle titanium dioxide content regulation addition, and the concrete operations that mixing can be settled by those skilled in the art according to actual needs
Condition selects.
According to embodiments of the invention, slurry surge tank 300 expects entrance after having surge tank charging aperture the 301, first peplos
302 and surge tank discharging opening 303, surge tank charging aperture 301 is connected with bottom slurry outlet 204, surge tank discharging opening 303 and titanium
White lead slurry inlet 101 is connected, and is suitable to expect to mix by after bottom slurry and the first peplos, in order to obtain mixed slurry,
And gained mixed slurry is back to filter pressing wash mill carries out filter pressing carrying out washing treatment.
According to one embodiment of present invention, after the first peplos, material can be to return from the sampling in peplos operation back segment
Material.It is to be understood that if no special instructions, mentioned in this article to " peplos operation back segment " disclosed patent CN can be referred to
The used additives that makes in 1066043 carries out peplos process to fine grained titanium dioxide under the conditions of pH=7～8 at a temperature of 50～70 DEG C
Any operation after operation, after the i.e. first peplos, material is the intermediate products obtained in any operation after peplos processes, and peplos
Sampling returning charge in operation back segment is to detect the intermediate products of any operation after peplos process in production process of titanium pigment
Sample after analysis.According to a particular embodiment of the invention, with reference to Fig. 2, by material supply after the first peplos to slurry surge tank
By using the first sampling material-returning device 600 to carry out, after the first peplos, expect entrance 302 and the first sampling material-returning device 600
It is connected, and the first sampling material-returning device 600 is arranged on titanium dioxide peplos operation back segment, will sampling in peplos operation back segment
Return collecting supplies to slurry surge tank 300 through the first peplos material entrance 302 after sampling in material-returning device 600 to first.Send out
A person of good sense finds, by using serosity surge tank to be carried out with peplos operation back segment intermediate products by the bottom slurry obtained in subsider
The sampling returning charge that detection obtains during analyzing supplies to subsequent handling after mixing, and can solve in peplos operation back segment
Between product carry out the sampling returning charge bulk deposition obtained during detection is analyzed and the difficult problem of wastage of material caused, and then not only
Improve the response rate of titanium, and can realize the controlled of titanium dioxide product quality and ensure the seriality produced.
According to embodiments of the invention, peplos tank 400 expects entrance before expecting entrance the 401, second peplos before having the first peplos
402 and second expect outlet 403 after peplos, and are suitable to material before material before the first peplos and the second peplos is carried out peplos process, in order to
Expect after obtaining the second peplos.It should be noted that those skilled in the art can be according to actual needs to the peplos agent used
Particular type and peplos condition select.
According to one embodiment of present invention, expect can refer to come from peplos operation leading portion before the first peplos normally to produce
Supplied materials, before the second peplos, material comes from the sampling returning charge in peplos operation leading portion.It is to be understood that if no special instructions, this
" normally the producing supplied materials in peplos operation leading portion " mentioned in literary composition can refer to make used additives in disclosed patent CN 1066043
Under the conditions of pH=7～8, fine grained titanium dioxide is carried out at a temperature of 50～70 DEG C operation slurry before peplos treatment process；Herein
In " the peplos operation leading portion " mentioned can refer to disclosed patent CN 1066043 makes used additives at a temperature of 50～70 DEG C
Fine grained titanium dioxide carries out under the conditions of pH=7～8 any operation before peplos treatment process, and before the i.e. second peplos, material is
The intermediate products obtained in any operation before peplos process, and sampling returning charge in peplos operation leading portion is in titanium white production mistake
Before in journey processing peplos, the intermediate products of any operation carry out the sample after detection is analyzed.
According to a particular embodiment of the invention, with reference to Fig. 3, will material supply before the second peplos to peplos tank be by using
Second sampling material-returning device 700 is carried out, and the second sampling material-returning device 700 is connected with material entrance before the second peplos, and second
Sampling material-returning device 700 is arranged on titanium dioxide peplos operation leading portion, will sampling return collecting in peplos operation leading portion to the
Supply to peplos tank 400 through the second peplos material entrance 402 after in two sampling material-returning devices 700.
According to embodiments of the invention, after storage tank 500 has the second peplos before filter pressing, expect entrance 501 and outlet 502,
Expect after described second peplos that entrance 501 is connected with material outlet 403 after described second peplos, described outlet 502 and described titanium
White lead slurry inlet 101 is connected, and is suitable to store material after described second peplos, and will material supply extremely described filter pressing after described peplos
In wash mill.Thus, by the sampling returning charge that obtains during peplos operation leading portion intermediate products are carried out detection analyzing and
The normal supplied materials that produces in peplos front-end-of-line is back to filter pressing wash mill after peplos processes after storage tank before follow-up filter pressing
Process, can not flocculate completely such that it is able to be prevented effectively from the titanium dioxide completely that do not flocculates in efficient recovery subsider
Titanium dioxide enters in the raw water box of sewage mixing channel, accident Cao Ji saliferous workshop section, and can solve in the middle of peplos operation leading portion
Product carries out the sampling returning charge bulk deposition obtained during detection is analyzed and the difficult problem of wastage of material caused, and then not only carries
The high response rate of titanium, and can realize the controlled of titanium dioxide product quality and ensure the seriality produced, and this
The system of the process chloridising production Titanium dioxide slurry in application need not original system is made bigger improvement.
Process chloridising according to embodiments of the present invention produces the system of Titanium dioxide slurry by chloridising is produced titanium white
Filtrate supply after slurry material carries out filter pressing washing carries out mixing settlement treatment with flocculant to subsider, and uses serosity
Surge tank obtains during the bottom slurry obtained in subsider and peplos operation back segment intermediate products carry out detection analysis
Sampling returning charge supplies after mixing and carries out filter pressing carrying out washing treatment to filter pressing wash mill, simultaneously by the middle of peplos operation leading portion
The normal supplied materials that produces sampling in returning charge and peplos front-end-of-line that product carries out obtaining during detection is analyzed processes through peplos
Process by being back to filter pressing wash mill after storage tank before filter pressing, can be with the titanium completely that do not flocculates in efficient recovery subsider
White lead, such that it is able to be prevented effectively from the titanium dioxide completely of not flocculating to enter sewage mixing channel, the former water of accident Cao Ji saliferous workshop section
In case, and peplos operation leading portion can be solved and sampling returning charge that back segment intermediate products carry out obtaining during detection is analyzed is big
A difficult problem for the wastage of material that amount is piled up and caused, and then not only increase the response rate of titanium, and can realize titanium dioxide is produced
The seriality that the controlled and guarantee of quality produces.
With reference to Fig. 4, process chloridising according to embodiments of the present invention produces the system of Titanium dioxide slurry and farther includes: dodge
Equipment for drying 800.
According to embodiments of the invention, dodge equipment for drying 800 and be connected with filtered solid outlet 102, and be suitable to filter pressing wash mill
In the filter cake obtained carry out flash drying process, such that it is able to obtain titanium dioxide coating granule.It should be noted that ability
The concrete operations condition dodging dry-cure can be selected by field technique personnel according to actual needs.
Inventor finds, uses this system can achieve the Titanium dioxide slurry in press filteration system filtrate and sample for test returns
Receive returning charge and the recovery of individual system returning charge of material, and the material batch mixing of acceptance or rejection can be solved by this system
Phenomenon, realize peplos material simultaneously and non-peplos material be effectively separated reprocessing, also achieve the controllability of product quality with
Time product quality can effectively be reviewed, ensure that the continuous operation of production simultaneously, ensure that the quality of product simultaneously, with
The response rate of Shi Tigao titanium dioxide, is simultaneously achieved the seriality of production.
In the second aspect of the invention, the present invention proposes the above-mentioned process chloridising of a kind of employing and produces Titanium dioxide slurry
System enforcement process chloridising produce Titanium dioxide slurry method.Below with reference to the Fig. 5 process chlorination to the embodiment of the present invention
Method produces the method for Titanium dioxide slurry and is described in detail.According to embodiments of the invention, the method includes:
S100: Titanium dioxide slurry supply is carried out filter pressing carrying out washing treatment to filter pressing wash mill
In this step, Titanium dioxide slurry supply is carried out filter pressing carrying out washing treatment to filter pressing wash mill, such that it is able to
To filter cake and filtrate.It should be noted that " chloridising production Titanium dioxide slurry " is same as above, and those skilled in the art can
According to actual needs the concrete operations condition of filter pressing washing is selected.
S200: carry out mixing sedimentation to subsider with flocculant supply by filtrate
In this step, carry out mixing sedimentation with flocculant supply to subsider by filtrate obtained above, such that it is able to
Obtain supernatant and bottom slurry.During Gai, containing titanium dioxide in filtrate obtained above, under the effect of flocculant, greatly
The titanium dioxide flocculating sedimentation of part is to bottom subsider, and is also deposited to sedimentation along with the part titanium dioxide completely that do not flocculates
Trench bottom, obtains in supernatant containing partial impurities (such as Na2SO4, the impurity such as NaCl) supply is at brine waste workshop section
Reason, and containing flocculating completely and two parts titanium dioxide completely that do not flocculates in the bottom slurry obtained.
According to one embodiment of present invention, the filtrate collection that pressure filter produces filter in filtrate tank, filtrate tank
Liquid mixes through static mixer after adding flocculant when conveying by distribution ring, adds aluminum sulfate solution upon mixing, adds
Subsider flocculating sedimentation is entered after adding.Flocculant and aluminum sulfate are added and can be added by Frequency pump, and addition can basis
Flow of filtrate is adjusted, concrete, and the addition of flocculant PAMA is 2.5～30L/m3, aluminum sulfate
Addition is 0.5-5L/m3, thereby may be ensured that final discharge filtrate reaches requirement.Flocculation can select aluminum sulfate, flocculant or
The methods such as aluminum sulfate and flocculant mixing are flocculated, and preferably flocculant and aluminum sulfate is used in mixed way, and wherein flocculant can be
The acid of aluminum sulfate, aluminum chloride, polyaluminium sulfate, aluminium polychlorid, PAMA, anion pp, anion are gathered
At least one in sodium acrylate and anion pp acid calcium.Inventor finds, uses the method to be substantially better than other notable
Improve the flocculating sedimentation effect of titanium dioxide.
It should be noted that the addition of flocculant, aluminum sulfate can use variable frequency pump to add, filtrate specifically can be passed through
Middle titanium dioxide content regulation addition, and the concrete operations that mixing can be settled by those skilled in the art according to actual needs
Condition selects.
S300: material supply after bottom slurry and the first peplos is mixed to slurry surge tank, and gained is mixed
Slurry is back to S100 and carries out filter pressing carrying out washing treatment
In this step, material supply after the bottom slurry of isolated in above-mentioned subsider and the first peplos is buffered to slurry
Tank mixes, such that it is able to obtain mixed slurry, and gained mixed slurry is back in S100 step carry out pressure filtering cleaning
Wash process.
According to one embodiment of present invention, after the first peplos, material can be to return from the sampling in peplos operation back segment
Material.It is to be understood that if no special instructions, mentioned in this article to " peplos operation back segment " disclosed patent CN can be referred to
The used additives that makes in 1066043 carries out peplos process to fine grained titanium dioxide under the conditions of pH=7～8 at a temperature of 50～70 DEG C
Any operation after operation, after the i.e. first peplos, material is the intermediate products obtained in any operation after peplos processes, and peplos
Sampling returning charge in operation back segment is to detect the intermediate products of any operation after peplos process in production process of titanium pigment
Sample after analysis.Inventor finds, by using serosity surge tank by the bottom slurry obtained in subsider and peplos operation
The sampling returning charge that back segment intermediate products carry out obtaining during detection is analyzed supplies to filter pressing washing procedure after mixing, can
With solve peplos operation back segment intermediate products carry out detection analyze during obtain sampling returning charge bulk deposition and cause former
A difficult problem for material waste, and then not only increase the response rate of titanium, and can realize the controlled of titanium dioxide product quality and
Ensure the seriality produced.
S400: material supply before material before the first peplos and the second peplos is carried out peplos process to peplos tank
In this step, material before material before the first peplos and the second peplos is carried out peplos process, in order to after obtaining the second peplos
Material.It should be noted that those skilled in the art can according to actual needs to the particular type of the peplos agent used and
Peplos condition selects.
According to one embodiment of present invention, expect can refer to come from peplos operation leading portion before the first peplos normally to produce
Supplied materials, before the second peplos, material comes from the sampling returning charge in peplos operation leading portion.It is to be understood that if no special instructions, this
" normally the producing supplied materials in peplos operation leading portion " mentioned in literary composition can refer to make used additives in disclosed patent CN 1066043
Under the conditions of pH=7～8, fine grained titanium dioxide is carried out at a temperature of 50～70 DEG C operation slurry before peplos treatment process；Herein
In " the peplos operation leading portion " mentioned can refer to disclosed patent CN 1066043 makes used additives at a temperature of 50～70 DEG C
Fine grained titanium dioxide carries out under the conditions of pH=7～8 any operation before peplos treatment process, and before the i.e. second peplos, material is
The intermediate products obtained in any operation before peplos process, and sampling returning charge in peplos operation leading portion is in titanium white production mistake
Before in journey processing peplos, the intermediate products of any operation carry out the sample after detection is analyzed.
S500: material supply will store to storage tank before filter pressing after the second peplos, and will be stored in before filter pressing in storage tank
The second peplos after material supply to filter pressing wash mill
In this step, storage tank before material supply after above-mentioned the second obtained peplos to filter pressing will store, and will deposit
Storage expects after the second peplos in storage tank that before filter pressing being back to S100 step carries out filter pressing carrying out washing treatment.Thus, by by peplos
The normal production sampling in returning charge and peplos front-end-of-line that operation leading portion intermediate products carry out obtaining during detection is analyzed comes
Expect that being back to filter pressing wash mill after storage tank before follow-up filter pressing after peplos processes processes, can be with efficient recovery subsider
In do not flocculate titanium dioxide completely, such that it is able to be prevented effectively from the titanium dioxide completely that do not flocculates to enter sewage mixing channel, accident groove
I.e. in the raw water box of saliferous workshop section, and peplos operation leading portion intermediate products can be solved carry out obtaining during detection is analyzed
A difficult problem for the wastage of material sampling returning charge bulk deposition and cause, and then not only increase the response rate of titanium, and can realize
The seriality that the controlled of titanium dioxide product quality and guarantee are produced, and the process chloridising production titanium dioxide in the application
The system of slurry need not original system is made bigger improvement.
Process chloridising according to embodiments of the present invention produces the method for Titanium dioxide slurry by chloridising is produced titanium white
Filtrate supply after slurry material carries out filter pressing washing carries out mixing settlement treatment with flocculant to subsider, and uses serosity
Surge tank obtains during the bottom slurry obtained in subsider and peplos operation back segment intermediate products carry out detection analysis
Sampling returning charge supplies after mixing and carries out filter pressing carrying out washing treatment to filter pressing wash mill, simultaneously by the middle of peplos operation leading portion
The normal supplied materials that produces sampling in returning charge and peplos front-end-of-line that product carries out obtaining during detection is analyzed processes through peplos
Process by being back to filter pressing wash mill after storage tank before filter pressing, can be with the titanium completely that do not flocculates in efficient recovery subsider
White lead, such that it is able to be prevented effectively from the titanium dioxide completely of not flocculating to enter sewage mixing channel, the former water of accident Cao Ji saliferous workshop section
In case, and peplos operation leading portion can be solved and sampling returning charge that back segment intermediate products carry out obtaining during detection is analyzed is big
A difficult problem for the wastage of material that amount is piled up and caused, and then not only increase the response rate of titanium, and can realize titanium dioxide is produced
The seriality that the controlled and guarantee of quality produces.
With reference to Fig. 6, process chloridising according to embodiments of the present invention produces the method for Titanium dioxide slurry and farther includes:
S600: filter cake supply is carried out flash drying process to dodging equipment for drying
In this step, the filter cake supply obtained by S100 filter pressing washing step is carried out at flash drying to sudden strain of a muscle equipment for drying
Reason, such that it is able to obtain titanium dioxide coating granule.It should be noted that those skilled in the art can be the most right
The concrete operations condition dodging dry-cure selects.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office
One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel
Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification.
Claims (8)
1. the system processing chloridising production Titanium dioxide slurry, it is characterised in that including:
Filter pressing wash mill, described filter pressing wash mill has Titanium dioxide slurry entrance, filtered solid outlet and filtrate (liquid, and is suitable to
Titanium dioxide slurry is carried out filter pressing carrying out washing treatment, in order to obtain filter cake and filtrate；
Subsider, described subsider has filtrate inlet, flocculant entrance, supernatant outlet and bottom slurry outlet, described filter
Liquid entrance is connected with described filtrate (liquid, and is suitable to carry out mixing sedimentation with flocculant by described filtrate, in order to obtain supernatant
With bottom slurry；
Slurry surge tank, described slurry surge tank has material entrance and surge tank discharging opening after surge tank charging aperture, the first peplos,
Described surge tank charging aperture is connected with described bottom slurry outlet, described surge tank discharging opening and described Titanium dioxide slurry entrance phase
Connect, and be suitable to expect to mix by after described bottom slurry and the first peplos, in order to obtain mixed slurry, and by described mixing slurry
Material is back to described filter pressing wash mill and carries out described filter pressing carrying out washing treatment；
Peplos tank, after described peplos tank expects entrance and the second peplos before expecting entrance, the second peplos before having the first peplos, material exports,
And be suitable to material before material before the first peplos and the second peplos is carried out peplos process, in order to expect after obtaining the second peplos；And
Storage tank before filter pressing, expects entrance and outlet, expects after described second peplos after storage tank has the second peplos before described filter pressing
Entrance is connected with material outlet after described second peplos, and described outlet is connected with described Titanium dioxide slurry entrance, and is suitable to deposit
Expect after storing up described second peplos, and by material supply after described peplos to described filter pressing wash mill.
System the most according to claim 1, it is characterised in that farther include: the first sampling material-returning device, described first
Expect after peplos that entrance is connected with described first sampling material-returning device, and described first sampling material-returning device is arranged on titanium dioxide bag
Membrane process back segment.
System the most according to claim 1 and 2, it is characterised in that farther include: the second sampling material-returning device, described
Second sampling material-returning device is connected with material entrance before described second peplos, and described second sampling material-returning device is arranged on titanium dioxide bag
Membrane process leading portion.
System the most according to claim 3, it is characterised in that farther include:
Dodging equipment for drying, described sudden strain of a muscle equipment for drying is connected with described filtered solid outlet, and is suitable to described filter cake is carried out flash drying process,
To obtain titanium dioxide coating granule.
5. use the system according to any one of claim 1-4 to process the method that chloridising produces Titanium dioxide slurry, its
It is characterised by, including:
Titanium dioxide slurry supply is carried out filter pressing carrying out washing treatment to described filter pressing wash mill, in order to obtain filter cake and filtrate；
Carry out mixing sedimentation with flocculant supply to described subsider by described filtrate, in order to obtain supernatant and bottom slurry
Material；
Material supply after described bottom slurry and the first peplos is mixed to described slurry surge tank, in order to obtain mixing slurry
Material, and described mixed slurry is back in described filter pressing wash mill carry out described filter pressing carrying out washing treatment；
Material before first peplos is expected that supply carries out peplos process to described peplos tank before the second peplos, in order to obtain the second bag
Expect after film；And
Storage tank before material supply after described second peplos to described filter pressing will store, and will be stored in storage tank before described filter pressing
In the second peplos after material supply to described filter pressing wash mill carries out described filter pressing carrying out washing treatment.
Method the most according to claim 5, it is characterised in that after described first peplos, material comes from peplos operation back segment
Sampling returning charge.
7. according to the method described in claim 5 or 6, it is characterised in that before before described first peplos, material comes from peplos operation
Normally producing supplied materials in Duan, before described second peplos, material comes from the sampling returning charge in peplos operation leading portion.
Method the most according to claim 7, it is characterised in that farther include: described filter cake is supplied to dodging equipment for drying
In carry out flash drying process, in order to obtain titanium dioxide coating granule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832110.3A CN106315671B (en) | 2016-09-19 | 2016-09-19 | The system and method for handling chloridising production Titanium dioxide slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832110.3A CN106315671B (en) | 2016-09-19 | 2016-09-19 | The system and method for handling chloridising production Titanium dioxide slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106315671A true CN106315671A (en) | 2017-01-11 |
| CN106315671B CN106315671B (en) | 2018-02-23 |
Family
ID=57787537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610832110.3A Active CN106315671B (en) | 2016-09-19 | 2016-09-19 | The system and method for handling chloridising production Titanium dioxide slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106315671B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171810A (en) * | 2019-04-08 | 2019-08-27 | 山东鲁北企业集团总公司 | A kind of washing methods of ferric phosphate slurry |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328962A (en) * | 2000-06-15 | 2002-01-02 | 泰兴纳米材料厂 | Method for preparing nanometer titanium dioxide micropowder |
| US20060104894A1 (en) * | 2004-11-16 | 2006-05-18 | Daoud Walid A | Method for making single-phase anatase titanium oxide |
| CN203668019U (en) * | 2013-12-09 | 2014-06-25 | 云南新立有色金属有限公司 | System for preparing titanium dioxide |
| CN105771352A (en) * | 2016-04-27 | 2016-07-20 | 安徽金星钛白（集团）有限公司 | Chemical-fiber titanium dioxide washing system and chemical-fiber titanium dioxide washing method |
| CN206188417U (en) * | 2016-09-19 | 2017-05-24 | 云南冶金新立钛业有限公司 | System for handle way of chloride production titanium white powder thick liquids |
-
2016
- 2016-09-19 CN CN201610832110.3A patent/CN106315671B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328962A (en) * | 2000-06-15 | 2002-01-02 | 泰兴纳米材料厂 | Method for preparing nanometer titanium dioxide micropowder |
| US20060104894A1 (en) * | 2004-11-16 | 2006-05-18 | Daoud Walid A | Method for making single-phase anatase titanium oxide |
| CN203668019U (en) * | 2013-12-09 | 2014-06-25 | 云南新立有色金属有限公司 | System for preparing titanium dioxide |
| CN105771352A (en) * | 2016-04-27 | 2016-07-20 | 安徽金星钛白（集团）有限公司 | Chemical-fiber titanium dioxide washing system and chemical-fiber titanium dioxide washing method |
| CN206188417U (en) * | 2016-09-19 | 2017-05-24 | 云南冶金新立钛业有限公司 | System for handle way of chloride production titanium white powder thick liquids |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171810A (en) * | 2019-04-08 | 2019-08-27 | 山东鲁北企业集团总公司 | A kind of washing methods of ferric phosphate slurry |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106315671B (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU714039B2 (en) | Niobium and tantalum pentoxide compounds | |
| CN105753687B (en) | A method of obtaining bulky grain terephthalic acid crystals from alkali decrement waste water | |
| CN101194034A (en) | Titanium intermediate processing | |
| CN101194033A (en) | Titanium intermediate processing | |
| CN1898401B (en) | Production of titania | |
| CN100366768C (en) | Production of titania | |
| CN206188417U (en) | System for handle way of chloride production titanium white powder thick liquids | |
| CN101203621A (en) | Improved metal extraction | |
| CN106315640B (en) | Handle the high method for steaming mother liquor in alumina producing | |
| CN106315671A (en) | System and method for producing titanium dioxide sizing by treatment chlorination process | |
| CN103014361B (en) | Process for preparing vanadium pentoxide through leaching vanadium slag roasting clinker in metatitanic acid washing water | |
| CN101248196A (en) | Operating titanium precipitation process | |
| DE10119685A1 (en) | Removing water-insolubles from aqueous metal solution, e.g. in production of aluminum oxide by the Bayer process, involves adding water-soluble cationic polyelectrolyte based on dimethylaminopropyl-acrylamide | |
| US5158688A (en) | Process for removing inorganic gels and incompressible solids from acidic media | |
| EP3191411B1 (en) | Measurement and treatment of fluid streams | |
| US2493752A (en) | Process of producing magnesium hydroxide | |
| DE3023875A1 (en) | METHOD FOR PRODUCING STABILIZED WET PHOSPHORIC ACID | |
| US3079228A (en) | Production of aluminum sulfate | |
| CN101506315B (en) | Improved process for manufacturing titanium dioxide pigment | |
| CN104628037A (en) | Method for purifying sodium tungstate with high impurity-tungsten ratio | |
| CN207845728U (en) | One kind is for liquid filter device before being extracted in wet method refining cobalt technique | |
| RU74633U1 (en) | TECHNOLOGICAL SYSTEM OF HYDROMETALLURGICAL EQUIPMENT FOR INTEGRATED PROCESSING OF CHLORIDE WASTE OF TITANIUM-MAGNESIUM PRODUCTION | |
| CN114178029B (en) | Screening system and screening method for quartz materials | |
| EP3325679A1 (en) | Method for reducing trivalent iron in the production of titanium dioxide according to the sulfate method | |
| RU2062800C1 (en) | Method for processing of waste melt of chlorinators of titanium production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |