CN102701252A - Barium carbonate, preparation method thereof and carbonizer - Google Patents
Barium carbonate, preparation method thereof and carbonizer Download PDFInfo
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Abstract
The invention relates to barium carbonate, a preparation method of the barium carbonate and a carbonizer. The preparation method of barium carbonate comprises the steps of: (1) conveying barium sulfide solution to the carbonizer, wherein the barium sulfide solution has the solubility of 120-170g/L at the temperature of 65-75 DEG C; (2) introducing carbon dioxide gas to a central tube (3) of the carbonizer, and simultaneously spraying the barium sulfide solution to the central tube (3) of the carbonizer to react with carbon dioxide gas; and (3) persistently and circularly spraying the solution containing barium sulfide to the central tube (3) of the carbonizer by a circulating pipe (4), stopping reaction until the barium sulfide concentration in the solution containing barium sulfide is smaller than 0.25g/L, and carrying out solid-liquid separation to obtain the barium carbonate product. According to the barium carbonate, a preparation method of the barium carbonate and a carbonizer provided by the invention, the barium sulfide solution is sprayed by single tower body internal circulation of the carbonizer, so that rapid reaction is carried out between the barium sulfide solution and the carbon dioxide gas, the reaction nucleation rate is increased and the crystal development and growth is slow, therefore, obtained barium carbonate has narrow particle size distribution, and the reaction activity is increased to more than 85%.
Description
Technical field
The present invention relates to a kind of barium carbonate and preparation method thereof, especially relate to a kind of high reaction activity barium carbonate and preparation method thereof.
Background technology
Industrial potassium titanate is widely used in pottery, glass, magneticsubstance and multiple barium salt fertile material.In recent years, the development along with salt chemical engineering industry industry promotes and water surrounding is handled has proposed new requirement to the non-dissolved state of barium carbonate, solid-liquid reaction activity.
The production of tradition barium carbonate is to adopt barium sulfide solution plural serial stage carbonic acid gas kiln gas blistering reaction production technique; Because the barium carbonate crystal development is comparatively complete under this technology, size distribution is wide, has more oversize granule and barium carbonate coacervate; Therefore the barium carbonate reactive behavior of preparation is lower; Be merely 60～70% like common light body barium carbonate reactive behavior, so the downstream user raw materials consumption is big, has increased cost.
Summary of the invention
Technical problem to be solved by this invention is: the barium carbonate crystal development that overcomes existing barium carbonate production technique existence is comparatively complete; The lower defective of barium carbonate powder reactive behavior of preparation provides a kind of barium carbonate and preparation method thereof, has improved barium carbonate crystal reaction nucleation rate; Suppressed the growth of barium carbonate crystal development simultaneously; Therefore gained barium carbonate powder granularity is evenly distributed, and does not produce reunion between the particle, has prepared the barium carbonate product of high reaction activity.
Reactive behavior according to the invention is meant that the barium carbonate powder is applied to the transformation efficiency of liquid-phase chemical reaction, the for example transformation efficiency of barium carbonate powder and nonacid sulfate radical solution reaction as raw material.The reactive behavior of barium carbonate powder is the macroreaction of diameter of particle, specific surface area and size distribution, and is special in close relations relevant with the size distribution of powder.When in the barium carbonate powder a fairly large number of ultrafine particle being arranged, though the specific surface area of barium carbonate powder (BET) increases, it can provide the amount of substance of reaction not enough, therefore influences the reactive behavior of barium carbonate powder; When the barium carbonate powder produces reunion and more macrobead is arranged, adopt such barium carbonate powder to react as raw material, when reaction finished, barium carbonate powder centre portions can not react usually, so the reactive behavior of barium carbonate powder also can be high.
The present invention adopts carbonating tower list tower body internal recycle to spray barium sulfide solution; Make barium sulfide solution and dioxide gas carry out rapid reaction, barium carbonate crystal reaction nucleation rate increases, and the crystal development growth slows down; Therefore gained barium carbonate powder granularity is evenly distributed, and does not produce reunion between the particle.This barium carbonate powder is applied to liquid-phase chemical reaction as raw material, for example barium carbonate powder and nonacid sulfate radical solution reaction, reactive behavior is increased to more than 85%.
In order to solve technical problem of the present invention, first technical scheme that provides is, a kind of preparation method of barium carbonate, and this method comprises: first step, barium sulfide solution to be delivered in the carbonating tower, said barium sulfide solution concentration is 120-170g/L, temperature is 65-75 ℃; Second step is passed into dioxide gas in the pipe core 3 of carbonating tower; Barium sulfide solution is ejected in the pipe core 3 of carbonating tower simultaneously, reacts with dioxide gas; Third step, the solution of Containing Sulfur barium continues cyclic sprays in the pipe core 3 of carbonating tower through circulation tube 4, in the solution of Containing Sulfur barium barium sulphide concentration less than 0.25g/L after stopped reaction, solid-liquid separation obtains barium carbonate product.
The solution of the Containing Sulfur barium in the third step refers to through after second step, contains the solution of barium sulphide and barium carbonate.
The preparation method of aforesaid barium carbonate, in the first step, the concentration of said barium sulfide solution is 120-140g/L.
The preparation method of aforesaid barium carbonate, in the first step, said barium sulfide solution accounts for carbonating tower volumetrical 50-70%.
The preparation method of aforesaid barium carbonate, in second step, the flow of said dioxide gas in the pipe core 3 of carbonating tower is 1400-2000Nm
3/ h.
The preparation method of aforesaid barium carbonate, in second step, the projection velocity of the solution of said Containing Sulfur barium is 3-4.5m/sec.
Second technical scheme that provides is a kind of barium carbonate, its D
50μ m is 0.70-0.90 μ m, D
10μ m is 0.1-0.2 μ m, and D
90μ m is＜2.0 μ m.
The 3rd technical scheme that provides is that this carbonating tower of a kind of carbonating tower comprises: tower body 1; Pipe core 3 is vertically installed in the inner chamber of tower body 1; Inlet pipe 2, its sidewall that passes tower body 1 links to each other with pipe core 3 upper ends; Circulation tube 4, one of which end are located at tower body 1 bottom, and with the inner chamber conducting of tower body 1, the sidewall that the other end passes tower body 1 links to each other with pipe core 3 upper ends; And escape pipe 5, be arranged at the top of tower body 1.
Aforesaid carbonating tower further comprises injector 6, is arranged at the junction of circulation tube 4 and pipe core 3 upper ends.
Adopt technical scheme of the present invention, have following beneficial effect at least: the reaction nucleation rate of barium carbonate powder of the present invention increases, and the crystal development growth slows down, so gained barium carbonate powder granularity is evenly distributed, and does not produce reunion between the particle.This barium carbonate powder is applied to liquid-phase chemical reaction as raw material, for example barium carbonate powder and nonacid sulfate radical solution reaction, reactive behavior is increased to more than 85%.
Description of drawings
Fig. 1 is the structure iron of the used carbonating tower of the present invention
Fig. 2 is a process flow sheet of the present invention.
Embodiment
For fully understanding the present invention's purpose, characteristic and effect,, the present invention is elaborated by following concrete embodiment.
The present invention adopts carbonating tower list tower body internal recycle to spray barium sulfide solution, makes barium sulfide solution and dioxide gas carry out rapid reaction, and barium carbonate reaction nucleation rate increases, and the crystal development growth slows down, so gained barium carbonate powder granularity is evenly distributed.This barium carbonate is applied to liquid-phase chemical reaction as raw material, and reactive behavior is increased to more than 85%.
Specify the structure and the operation of the used carbonating tower of the present invention below.
Fig. 1 is the structure iron of the used carbonating tower of the present invention.This carbonating tower comprises tower body 1, inlet pipe 2, pipe core 3, circulation tube 4, escape pipe 5; The tower body 1 inner chamber 11 that forms, pipe core 3 is vertical at the centre of tower body 1 inner chamber 11, and when responding liquid in the chamber 11, the lower end of pipe core 3 is positioned under the liquid level; The sidewall that inlet pipe 2 is passed tower body 1 links to each other with pipe core 3 upper ends, and circulation tube 4 one of which ends are located at tower body 1 bottom, and with chamber 11 conductings of tower body 1, the sidewall that the other end passes tower body 1 links to each other with pipe core 3 upper ends, and escape pipe 5 is located at tower body 1 top.Carbonating tower of the present invention is preferably processed by conventional corrosion resistant material, for example glass reinforced plastic, corrosion-resistant stainless steel etc.Said pipe core 3 preferred DN diameters (nominal diameter) are the pipeline that the corrosion resistant material of 120-170mm (preferred 150mm) is processed; The present invention does not have special demands to the length of pipe core 3, and the pipeline that normal length inserts below the liquid level 1m all can be applicable to the present invention.
This carbonating tower further comprises injector 6, is arranged at the junction of circulation tube 4 and pipe core 3 upper ends.The present invention does not have particular requirement to injector, and conventional commercially available injector all can be applied to the present invention.
Preferably, inlet pipe 2 is provided with valve 21; Circulation tube 4 is provided with valve 41, recycle pump 42, valve 43; Escape pipe 5 is provided with valve 51.
Preferably, be connected with pipeline A and B on the circulation tube 4, pipeline A is provided with valve A1, and pipeline B is provided with valve B1.After reaction stopped, valve-off 21, valve 41, valve 51 were opened valve A1 and B1, and product liquid is discharged from pipeline A, and unreacting gas and residual gas product are discharged from pipeline B.
Below in conjunction with carbonating tower, specify the preparation method of barium carbonate of the present invention.This method comprises:
First step is prepared the barium sulfide solution of concentration 120-170g/L (preferred 120-140g/L), with its temperature maintenance at 65-75 ℃;
Second step is delivered to said barium sulfide solution in the chamber 11 of carbonating tower, makes barium sulfide solution account for chamber 11 volumetrical 50-70% (preferred 60%);
Third step is passed into pipe core 3 with dioxide gas; Barium sulfide solution flow into the circulation tube 4 from chamber 11 through circulation tube 4 circulations simultaneously, is ejected in the pipe core 3 through injector 6 then, reacts with dioxide gas;
The 4th step; The solution of Containing Sulfur barium continues circulation through circulation tube 4, and continues to be ejected in the pipe core 3 through injector 6, in the solution of Containing Sulfur barium barium sulphide concentration less than 0.25g/L after; Stopped reaction; The product slurry is discharged outside the carbonating tower, and solid-liquid separation, oven dry then promptly gets barium carbonate product.
Concrete, in the third step, open valve 21, valve 41, valve 43, valve 51, dioxide gas enters into pipe core 3 continuously through inlet pipe 2, and the flow in pipe core 3 is 1400-2000Nm
3/ h.Barium sulfide solution in the carbonating tower circulates through circulation tube 4 under the effect of recycle pump 42; Flow into the circulation tube 4 from chamber 11; Be ejected into fast in the pipe core 3 through the projection velocity of injector 6 then with 3-4.5m/sec; With the reactant gases rapid reaction, barium carbonate reaction nucleation rate increases, and the crystal development growth slows down.The stink damp that reaction generates is known from experience from escape pipe 5 discharges.Main chemical reactions in the third step is following:
2BaS+2H
2O→Ba(OH)
2+Ba(HS)
2
Ba(OH)
2+CO
2↑→BaCO
3+H
2O
H
2O+Ba(HS)
2+CO
2↑→BaCO
3+2H
2S↑
Concrete, in the 4th step, the mother liquor after the solid-liquid separation is recycled, and for example is back to barium sulphide leaching operation, and the filter cake oven dry obtains high reactivity carbonic acid barium product.
Barium carbonate of the present invention, its D
50μ m is 0.7-0.9 μ m, D
10μ m is 0.1-0.2 μ m, and D
90μ m is＜2.0 μ m.
Barium carbonate of the present invention has the characteristics of narrow diameter distribution, and this barium carbonate is applied to liquid-phase chemical reaction as raw material, and reactive behavior is increased to more than 85%.
Set forth the enforcement of method of the present invention below through concrete embodiment, one skilled in the art will appreciate that this should not be understood that the restriction to claim scope of the present invention.
Embodiment
Used determinator and measuring method describes as follows when at first, the strontium titanate that contains low free strontium oxide among the following embodiment being prepared process and product and analyzes:
The barium sulphide concentration analysis: excessive EDTA titration sample, the excessive EDTA of MgCh standardized solution residual titration adopts the chromium black T indicator directing terminal then, measures Ba
2+Concentration is calculated barium sulphide concentration then.
Particle size analysis method: the median size of the volume reference that records with the wet type laser method;
Particle size analysis device: 2000MU type particle diameter appearance, Britain Ma Erda corporate system; Product elemental analysis method: inductively coupled plasma (ICP) atomic emission spectrometry.
Embodiment 1
The used carbonating tower of present embodiment adopts the corrosion-resistant stainless steel material to process, and chamber 11 is the right cylinder of diameter 2m * height 3m, and pipe core 3 is DN diameter 150mm, length 2m.
Prepare the barium sulfide solution of concentration 120g/L, with its temperature maintenance at 65 ℃.Said barium sulfide solution conventional pumps is delivered in the chamber 11 of carbonating tower, made barium sulfide solution account for chamber 11 volumetrical 50%, the lower end of carbonating tower pipe core 3 is positioned under the barium sulfide solution liquid level.Open valve 21, valve 41, valve 43, valve 51, dioxide gas enters into pipe core 3 continuously through inlet pipe 2, and the flow in pipe core 3 is 1400Nm
3/ h.Barium sulfide solution in the carbonating tower continues circulation through circulation tube 4 under the effect of recycle pump 42 simultaneously; Flow into the circulation tube 4 from chamber 11; Be ejected into fast in the pipe core 3 through the projection velocity of injector 6 then, with the dioxide gas rapid reaction with 4m/sec.The hydrogen sulfide that reaction generates is discharged from escape pipe 5.The solution of Containing Sulfur barium continues circulation through circulation tube 4, and continues to be ejected in the pipe core 3 through the projection velocity of injector 6 with 4m/sec.
Open valve A1, sampling is measured.Barium sulphide concentration in the barium sulfide solution less than 0.25g/L after, valve-off 21, valve 41, valve 51 are opened valve A1 and B1, and the product slurry is discharged outside the carbonating tower, press filtration separates then, with 100 ℃ of oven dry down of gained filter cake, promptly gets barium carbonate product 1#.
The used carbonating tower of present embodiment adopts the corrosion-resistant stainless steel material to process, and chamber 11 is the right cylinder of diameter 2m * height 3m, and pipe core 3 is DN diameter 120mm, length 2m.
Prepare the barium sulfide solution of concentration 140g/L, with its temperature maintenance at 65 ℃.Said barium sulfide solution conventional pumps is delivered in the chamber 11 of carbonating tower, made barium sulfide solution account for chamber 11 volumetrical 60%, the lower end of carbonating tower pipe core 3 is positioned under the barium sulfide solution liquid level.Open valve 21, valve 41, valve 43, valve 51, dioxide gas enters into pipe core 3 continuously through inlet pipe 2, and the flow in pipe core 3 is 1600Nm
3/ h.Barium sulfide solution in the carbonating tower continues circulation through circulation tube 4 under the effect of recycle pump 42 simultaneously; Flow into the circulation tube 4 from chamber 11; Be ejected into fast in the pipe core 3 through the projection velocity of injector 6 then, with the dioxide gas rapid reaction with 4.5m/sec.The hydrogen sulfide that reaction generates is discharged from escape pipe 5.The solution of Containing Sulfur barium continues circulation through circulation tube 4, and continues to be ejected in the pipe core 3 through the projection velocity of injector 6 with 4.5m/sec.
Open valve A1, sampling is measured.Barium sulphide concentration in the barium sulfide solution less than 0.25g/L after, valve-off 21, valve 41, valve 51 are opened valve A1 and B1, and the product slurry is discharged outside the carbonating tower, press filtration separates then, with 100 ℃ of oven dry down of gained filter cake, promptly gets barium carbonate product 2#.
Embodiment 3
The used carbonating tower of present embodiment adopts the corrosion-resistant stainless steel material to process, and chamber 11 is the right cylinder of diameter 2m * height 3.5m, and pipe core 3 is DN diameter 160mm, length 2m.
Prepare the barium sulfide solution of concentration 150g/L, with its temperature maintenance at 70 ℃.Said barium sulfide solution conventional pumps is delivered in the chamber 11 of carbonating tower, made barium sulfide solution account for chamber 11 volumetrical 60%, the lower end of carbonating tower pipe core 3 is positioned under the barium sulfide solution liquid level.Open valve 21, valve 41, valve 43, valve 51, dioxide gas enters into pipe core 3 continuously through inlet pipe 2, and the flow in pipe core 3 is 1800Nm
3/ h.Barium sulfide solution in the carbonating tower continues circulation through circulation tube 4 under the effect of recycle pump 42 simultaneously; Flow into the circulation tube 4 from chamber 11; Be ejected into fast in the pipe core 3 through the projection velocity of injector 6 then, with the dioxide gas rapid reaction with 3m/sec.The hydrogen sulfide that reaction generates is discharged from escape pipe 5.The solution of Containing Sulfur barium continues circulation through circulation tube 4, and continues to be ejected in the pipe core 3 through the projection velocity of injector 6 with 3m/sec.
Open valve A1, sampling is measured.Barium sulphide concentration in the barium sulfide solution less than 0.25g/L after, valve-off 21, valve 41, valve 51 are opened valve A1 and B1, and the product slurry is discharged outside the carbonating tower, press filtration separates then, with 100 ℃ of oven dry down of gained filter cake, promptly gets barium carbonate product 3#.
Embodiment 4
The used carbonating tower of present embodiment adopts the corrosion-resistant stainless steel material to process, and chamber 11 is the right cylinder of diameter 2m * height 3.5m, and pipe core 3 is DN diameter 170mm, length 2m.
Prepare the barium sulfide solution of concentration 170g/L, with its temperature maintenance at 75 ℃.Said barium sulfide solution conventional pumps is delivered in the chamber 11 of carbonating tower, made barium sulfide solution account for chamber 11 volumetrical 70%, the lower end of carbonating tower pipe core 3 is positioned under the barium sulfide solution liquid level.Open valve 21, valve 41, valve 43, valve 51, dioxide gas enters into pipe core 3 continuously through inlet pipe 2, and the flow in pipe core 3 is 2000Nm
3/ h.Barium sulfide solution in the carbonating tower continues circulation through circulation tube 4 under the effect of recycle pump 42 simultaneously; Flow into the circulation tube 4 from chamber 11; Be ejected into fast in the pipe core 3 through the projection velocity of injector 6 then, with the dioxide gas rapid reaction with 3.5m/sec.The hydrogen sulfide that reaction generates is discharged from escape pipe 5.The solution of Containing Sulfur barium continues circulation through circulation tube 4, and continues to be ejected in the pipe core 3 through the projection velocity of injector 6 with 3.5m/sec.
Open valve A1, sampling is measured.Barium sulphide concentration in the barium sulfide solution less than 0.25g/L after, valve-off 21, valve 41, valve 51 are opened valve A1 and B1, and the product slurry is discharged outside the carbonating tower, press filtration separates then, with 100 ℃ of oven dry down of gained filter cake, promptly gets barium carbonate product 4#.
Sample 1-4# is carried out particle size analysis, and the result sees table 1.
Table 1
| Project | 1 # | 2 # | 3 # | 4# |
| D 50μm | 0.8 | 0.7 | 0.9 | 0.9 |
| D 10μm | 0.1 | 0.1 | 0.2 | 0.2 |
| D 90μm | 1.5 | 1.3 | 1.7 | 1.8 |
Can find out from last table data, adopt carbonating tower list tower body internal recycle to spray barium sulfide solution, make barium sulfide solution and dioxide gas carry out rapid reaction; Barium carbonate crystal reaction nucleation rate increases; The crystal development growth slows down, so gained barium carbonate powder granularity is evenly distributed its D
50μ m is 0.70-0.90 μ m, D
10μ m is 0.1-0.2 μ m, and D
90μ m is＜2.0 μ m.
The application implementation example
Prepare the metabisulfite solution of the concentration 142g/L of four parts of 1000ml, and respectively with temperature maintenance at 50 ℃.Then; Under 30 rev/mins stirring velocity, the barium carbonate powder 197g with sample 1-4# slowly joins in the metabisulfite solution of four parts of 1000ml respectively, reacts after 2 hours; Stop to stir; Press filtration separates then, the gained filter cake is dried down for 100 ℃ obtain solid, the CO in the ultimate analysis gained solid
3 2-Content, the reactive behavior that calculates the barium carbonate powder of sample 1-4# is seen table 2.
Comparative Examples 1
The used barium carbonate powder of this Comparative Examples 5# is prepared from its D existing conventional plural serial stage carbonic acid gas kiln gas bubbling carbonizing production technique
50μ m is 0.70 μ m, D
10μ m is 0.1 μ m, D
90μ m is 2.5 μ m.Adopt with the identical step of above-mentioned application implementation example and adopt this barium carbonate powder and metabisulfite solution reaction, the reactive behavior of this barium carbonate powder 5# is seen table 2.
Table 2
| Project | 1 # | 2 # | 3 # | 4 # | 5 # |
| Reactive behavior | 87.11 | 89.92 | 86.24 | 86.01 | 65% |
Can find out that by table 2 data because sample 1-4# barium carbonate powder granularity is evenly distributed, therefore sample 1-4# barium carbonate is applied to liquid-phase chemical reaction as raw material, reactive behavior is increased to more than 85%.This shows, adopt carbonating tower list tower body internal recycle to spray barium sulfide solution, make barium sulfide solution and dioxide gas carry out rapid reaction; Barium carbonate crystal reaction nucleation rate increases; The crystal development growth slows down, and gained barium carbonate powder granularity is evenly distributed, and reactive behavior increases.
By table 1 and table 2, the 1-4# sample is compared the D of 2# sample
50, D
10, D
90Value and reactive behavior value are superior to the 1# sample, and these data declarations in the concentration range of 120-140g/L, improve reaction density and need not improve temperature of reaction, and therefore, in this scope, the reaction density increase helps improving active.Bring up to 140g/L when above when barium sulphide concentration, need to improve temperature of reaction to prevent crystallization, the raising meeting of temperature of reaction causes disadvantageous effect to reactive behavior, and therefore, 3# sample and 4# sample data are inferior to the 2# sample.
The present invention adopts carbonating tower list tower body internal recycle to spray barium sulfide solution; Make barium sulfide solution and dioxide gas carry out rapid reaction, barium carbonate crystal reaction nucleation rate increases, and the crystal development growth slows down; Therefore gained barium carbonate powder granularity is evenly distributed, and does not produce reunion between the particle.This barium carbonate powder is applied to liquid-phase chemical reaction as raw material, for example barium carbonate powder and nonacid sulfate radical solution reaction, reactive behavior is increased to more than 85%.
Claims (8)
1. the preparation method of a barium carbonate, this method comprises:
First step is delivered to barium sulfide solution in the carbonating tower, and said barium sulfide solution solubility is 120-170g/L, and temperature is 65-75 ℃;
Second step is passed into dioxide gas in the pipe core (3) of carbonating tower; Barium sulfide solution is ejected in the pipe core (3) of carbonating tower simultaneously, reacts with dioxide gas;
Third step, the solution of Containing Sulfur barium continues cyclic spray in the pipe core (3) of carbonating tower through circulation tube (4), in the solution of Containing Sulfur barium barium sulphide concentration less than 0.25g/L after stopped reaction, solid-liquid separation obtains barium carbonate product.
2. the preparation method of barium carbonate according to claim 1 is characterized in that, in the first step, the concentration of said barium sulfide solution is 120-140g/L.
3. the preparation method of barium carbonate according to claim 1 and 2 is characterized in that, in the first step, said barium sulfide solution accounts for carbonating tower volumetrical 50-70%.
4. according to the preparation method of each described barium carbonate of claim 1-3, it is characterized in that in second step, the flow of said dioxide gas in the pipe core 3 of carbonating tower is 1400-2000Nm
3/ h.
5. according to the preparation method of each described barium carbonate of claim 1-4, it is characterized in that in second step, the projection velocity of the solution of said Containing Sulfur barium is 3-4.5m/sec.
6. adopt barium carbonate, it is characterized in that the D of said barium carbonate like each described method preparation of claim 1-5
50μ m is 0.70-0.90 μ m, D
10μ m is 0.1-0.2 μ m, and D
90μ m is＜2.0 μ m.
7. a carbonating tower is characterized in that, this carbonating tower comprises:
Tower body (1);
Pipe core (3) is vertically installed in the inner chamber of tower body (1);
Inlet pipe (2), its sidewall that passes tower body (1) links to each other with pipe core (3) upper end;
Circulation tube (4), one of which end are located at tower body (1) bottom, and with the inner chamber conducting of tower body (1), the sidewall that the other end passes tower body (1) links to each other with pipe core (3) upper end; And
Escape pipe (5) is arranged at the top of tower body (1).
8. carbonating tower according to claim 7 is characterized in that, this carbonating tower further comprises injector (6), is arranged at the junction of circulation tube (4) and pipe core (3) upper end.
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| CN103058251A (en) * | 2013-01-22 | 2013-04-24 | 贵州红星发展股份有限公司 | Method for preparing low-sulfur barium carbonate and prepared barium carbonate product |
| CN103771417A (en) * | 2014-01-29 | 2014-05-07 | 南京金焰锶业有限公司 | Automatic carbonizing plant and method |
| CN108229092A (en) * | 2018-01-09 | 2018-06-29 | 南京大学 | Increase liquid phase chemical and the atmospheric pollution simulation prediction algorithm of wet deposition process |
| CN114180610A (en) * | 2021-12-28 | 2022-03-15 | 贵州红星发展股份有限公司 | Method for preparing large-particle-size barium carbonate by four-tower series carbonization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102923750A (en) * | 2012-11-26 | 2013-02-13 | 贵州红星发展股份有限公司 | High-purity barium carbonate prepared by multi-decomposed method and preparation method of high-purity barium carbonate |
| CN102923750B (en) * | 2012-11-26 | 2014-09-24 | 贵州红星发展股份有限公司 | High-purity barium carbonate prepared by multi-decomposed method and preparation method of high-purity barium carbonate |
| CN103058251A (en) * | 2013-01-22 | 2013-04-24 | 贵州红星发展股份有限公司 | Method for preparing low-sulfur barium carbonate and prepared barium carbonate product |
| CN103058251B (en) * | 2013-01-22 | 2014-08-27 | 贵州红星发展股份有限公司 | Method for preparing low-sulfur barium carbonate and prepared barium carbonate product |
| CN103771417A (en) * | 2014-01-29 | 2014-05-07 | 南京金焰锶业有限公司 | Automatic carbonizing plant and method |
| CN103771417B (en) * | 2014-01-29 | 2015-05-20 | 南京金焰锶业有限公司 | Automatic carbonizing plant and method |
| CN108229092A (en) * | 2018-01-09 | 2018-06-29 | 南京大学 | Increase liquid phase chemical and the atmospheric pollution simulation prediction algorithm of wet deposition process |
| CN108229092B (en) * | 2018-01-09 | 2023-09-12 | 南京大学 | Atmospheric pollution simulation prediction algorithm for increasing liquid phase chemistry and wet sedimentation process |
| CN114180610A (en) * | 2021-12-28 | 2022-03-15 | 贵州红星发展股份有限公司 | Method for preparing large-particle-size barium carbonate by four-tower series carbonization method |
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