CN109052448A - A kind of method and production line producing barium sulfate and vulcanized sodium - Google Patents
A kind of method and production line producing barium sulfate and vulcanized sodium Download PDFInfo
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- CN109052448A CN109052448A CN201810818191.0A CN201810818191A CN109052448A CN 109052448 A CN109052448 A CN 109052448A CN 201810818191 A CN201810818191 A CN 201810818191A CN 109052448 A CN109052448 A CN 109052448A
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- barium
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/462—Sulfates of Sr or Ba
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/22—Alkali metal sulfides or polysulfides
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Abstract
This application discloses a kind of methods and production line for producing barium sulfate and vulcanized sodium.Mirabilite method and sulfuric acid process is respectively adopted to obtain barium sulfate finished product.By absorbing the mother liquor alkaline cleaning after traditional mirabilite method filtering barium sulfate the hydrogen sulfide gas produced in sulfuric acid process, vulcanized sodium solid being directly precipitated.This method and technique organically combine mirabilite method and sulfuric acid process, eliminate the evaporating and concentrating process in mirabilite method, solve the high energy consumption issues of traditional mirabilite method by-product vulcanized sodium evaporating concentration process, while solving the Utilizing question of hydrogen sulfide gas.It can produce the barium sulfate of different qualities in this technique, wherein the product whiteness of high-quality is high, particle diameter distribution is narrow, specific surface area is high, and positioning is high in the market, and profit is considerable.
Description
Technical field
This application involves barium sulfate production field, in particular to a kind of method for producing barium sulfate and vulcanized sodium and
Production line.
Background technique
Barium sulfate is widely used in the industrial circles such as coating, paint, plastics, rubber, papermaking.Currently, domestic enterprise uses
Production technology be mostly two class of mirabilite method and sulfuric acid process.Wherein, mirabilite method is as conventional method, technology maturation, and byproduct is
Vulcanized sodium is important industrial chemicals, is widely used in the industries such as pharmacy, papermaking, process hides, sulfur dye.However, mirabilite method technique
In sodium sulfide solution be concentrated by evaporation that energy consumption is high, become the important link for restricting enterprise's production cost.Sulfuric acid process, using sulfuric acid come
Instead of sodium sulphate (saltcake), the barium sulfate product whiteness for producing acquisition is higher, good dispersion, and added value is high, while byproduct sulphur
Changing hydrogen can be used as the raw material of high value added product and the important profit rise point of relevant enterprise, however the collection of hydrogen sulfide,
Storage and utilization, need biggish production line initial investment.For vulcanized sodium recycling in above-mentioned mirabilite method production barium sulfate technique
The problem of highly energy-consuming, cost with high investment, currently no effective solution has been proposed.
Summary of the invention
It is an object of the present invention to provide a kind of production methods of vulcanized sodium, to solve mirabilite method production barium sulfate technique
The technical issues of middle vulcanized sodium recycling highly energy-consuming, cost with high investment.
A kind of production method of vulcanized sodium, which is characterized in that the by-product vulcanized sodium for obtaining mirabilite method production barium sulfate
Alkaline cleaning in solution, gained alkaline solution is used to absorb the hydrogen sulfide gas of Production By Sulfuric Acid Process barium sulfate generation, directly to analyse
Vulcanized sodium solid out.
Further, the alkaline cleaning is to form sodium hydroxide solution, the absorption with sodium sulfide solution dissolution caustic soda
The hydrogen sulfide gas that Production By Sulfuric Acid Process barium sulfate generates is to be atomized the sodium hydroxide solution in spray column as absorbing liquid to spray
Leaching, absorbs the hydrogen sulfide gas.
Further, the concentration of sodium hydroxide is 0.2~0.4g/mL in the sodium hydroxide solution.
Further, described method includes following steps:
(1) barite and coal dust carry out high temperature reduction reaction in rotary kiln, obtain barium sulphide clinker, are leached, sunk
Drop, obtains clear barium sulfide solution, spare；
(2) changing dissolution saltcake acquisition saltcake solution in nitre tank, it is spare；
(3) by the clear barium sulfide solution in part in step (1) and saltcake solution by reaction ratio injection chemical combination fill in into
Row reaction；
(4) sodium sulfide solution after obtaining barium sulfate and separation；Separation obtain barium sulfate by washing, pickling, filters pressing,
It is dried to obtain finished product sulfuric acid barium；Sodium hydroxide solution is formed with filtered fluid dissolution caustic soda；
(5) clear barium sulfide solution remaining in step (1) is directly injected into the chemical combination tank of sealing；Delay into chemical combination tank
The sulfuric acid that slow implantation quality concentration is 25-30%, reaches reaction end；
(6) barium sulfate obtained in step (5) is separated by solid-liquid separation, by desulfurization, deacidifies, is dried to obtain finished product sulfuric acid
Barium；
(7) sodium hydroxide solution for obtaining step (4) is as absorbing liquid in spray column atomizing spray, absorption step (5)
The hydrogen sulfide gas of middle generation, the saturation vulcanized sodium Precipitation generated in the reaction process；By the dehydration of vulcanized sodium precipitating, do
It is dry, obtain vulcanized sodium product.
Further, clear barium sulfide solution concentration is 130~160g/L in the step (1)；Saltcake in step (2)
Concentration of polymer solution is 0.6-1.8g/mL；The volume ratio of barium sulfide solution is 1:(0.5-3 in step (3) and step (5)).
It is a further object to provide the production methods of a kind of barium sulfate and vulcanized sodium, to produce different quality sulphur
While sour barium, the cost of investment and energy consumption of vulcanized sodium recycling in mirabilite method technique are reduced, and is effectively utilized Production By Sulfuric Acid Process
Hydrogen sulfide gas caused by barium sulfate.
A kind of production method of barium sulfate and vulcanized sodium, it is characterised in that the following steps are included:
(1) barium sulfate finished product and by-product sodium sulfide solution are obtained using mirabilite method；
(2) barium sulfate finished product and hydrogen sulfide gas are obtained using sulfuric acid process；
(3) with metabisulfite solution dissolution caustic soda formation sodium hydroxide solution is obtained in step (1), by the sodium hydroxide of acquisition
Solution is as absorbing liquid atomizing spray, the hydrogen sulfide gas generated in absorption step (2), the saturation sulphur generated in the reaction process
Change sodium Precipitation.
A kind of production method of barium sulfate and vulcanized sodium, it is characterised in that the following steps are included:
(1) barite and coal dust carry out high temperature reduction reaction in rotary kiln, obtain barium sulphide clinker, are leached, sunk
Drop, obtains clear barium sulfide solution, spare；
(2) changing dissolution saltcake acquisition saltcake solution in nitre tank, it is spare；
(3) by the clear barium sulfide solution in part in step (1) and saltcake solution by reaction ratio injection chemical combination fill in into
Row reaction；
(4) sodium sulfide solution after obtaining barium sulfate and separation；Separation obtain barium sulfate by washing, pickling, filters pressing,
It is dried to obtain finished product sulfuric acid barium；Sodium hydroxide solution is formed with filtered fluid dissolution caustic soda；
(5) clear barium sulfide solution remaining in step (1) is directly injected into the chemical combination tank of sealing；Delay into chemical combination tank
The sulfuric acid that slow implantation quality concentration is 25-30%, reaches reaction end；
(6) barium sulfate obtained in step (5) is separated by solid-liquid separation, by desulfurization, deacidifies, is dried to obtain finished product sulfuric acid
Barium；
(7) sodium hydroxide solution for obtaining step (4) is as absorbing liquid in spray column atomizing spray, absorption step (5)
The hydrogen sulfide gas of middle generation, the saturation vulcanized sodium Precipitation generated in the reaction process；By the dehydration of vulcanized sodium precipitating, do
It is dry, obtain vulcanized sodium product.
Further, this method further includes:
(1)BaSO4Stock: carries out high temperature reduction reaction for barite and coal dust in rotary kiln, control temperature 1000~
It 1200 DEG C, reacts 1.5~3 hours；After obtaining barium sulphide clinker, first pass through leaching can leaching, 85 DEG C of leaching can temperature of control with
On；Then it is settled by settling tank, acquisition mass concentration is 130~160g/L barium sulfide solution, spare；
(2) it configures saltcake solution: dissolving saltcake in nitre tank changing, control saltcake concentration of polymer solution in 0.9-1.5g/mL；
(3) it metathesis reaction: will be obtained in a part and step (2) of the clear barium sulfide solution obtained in step (1)
The saltcake solution obtained is injected in the filling of the first chemical combination by reaction ratio and is reacted；
(4) it is separated by solid-liquid separation: the reaction product of step (3) is separated by solid-liquid separation, obtain blanc fixe and filtered fluid, sink
Shallow lake barium sulfate passes through washing, pickling, is dried to obtain finished product sulfuric acid barium；Filtered fluid injects dissolution caustic soda in dissolving tank and forms hydroxide
Sodium solution controls 0.2~0.4g/mL of concentration of sodium hydroxide solution；
(5) the clear barium sulfide solution obtained in remaining step (1) is directly injected into the second chemical combination tank of sealing；To
It is slowly injected into mass concentration in second chemical combination tank and is the sulfuric acid of 25-30%, until reaching reaction end；
(6) it is separated by solid-liquid separation: after the barium sulfate obtained in step (5) is separated by solid-liquid separation, blanc fixe is obtained, by de-
Sulphur deacidifies, is dried to obtain finished product sulfuric acid barium；
(7) sodium hydroxide solution for obtaining step (4) is as absorbing liquid in spray column atomizing spray, absorption step (5)
The hydrogen sulfide gas of middle generation,
The saturation vulcanized sodium Precipitation generated in the reaction process；By the dehydration of vulcanized sodium precipitating, dry, available vulcanization
Sodium product.
It is a further object to provide a kind of production line for producing barium sulfate and vulcanized sodium, which can be mentioned
For the barium sulfate product of different qualities, while the cost of investment and energy consumption of vulcanized sodium recycling are reduced, and it is raw to efficiently use sulfuric acid process
Produce hydrogen sulfide gas caused by barium sulfate.
A kind of production line producing barium sulfate and vulcanized sodium, production line and use including producing barium sulfate using mirabilite method
The production line of Production By Sulfuric Acid Process barium sulfate, it is characterised in that the production line further includes dissolving tank, spray column and settling tank, mirabilite method
It produces dissolution caustic soda in the by-product sodium sulfide solution injection dissolving tank of the production line acquisition of barium sulfate and forms sodium hydroxide solution；
The sodium hydroxide solution, in spray column atomizing spray, absorbs the production line institute for using Production By Sulfuric Acid Process barium sulfate as absorbing liquid
The hydrogen sulfide gas of generation is to obtain vulcanized sodium product.
Further, which specifically includes rotary kiln, leaching can, settling tank, changes nitre tank, the first chemical combination tank, second
Chemical combination tank, the first plate filter, the second plate filter, the first pan dryer, the second pan dryer, third disc type are dry
Dry device, dissolving tank, spray column and settling tank；The operating process of the production line sequentially includes the following steps:
(1) barite and coal dust carry out high temperature reduction reaction in rotary kiln, obtain barium sulphide clinker, are soaked by leaching can
It takes, settling tank sedimentation, obtains clear barium sulfide solution；
(2) change dissolution saltcake in nitre tank and obtain saltcake solution；
(3) the clear barium sulfide solution in part and saltcake solution are injected in the filling of the first chemical combination by reaction ratio in step (1)
It is reacted；
(4) reaction product of step (3) is separated by solid-liquid separation through the first plate filter, obtains blanc fixe and filtering
Liquid, blanc fixe is by being dried to obtain finished product sulfuric acid barium in washing, pickling, filters pressing, the first pan dryer；Filtered fluid injection
Caustic soda is dissolved in dissolving tank forms sodium hydroxide solution；
(5) remaining clear barium sulfide solution is directly injected into the second chemical combination tank of sealing in step (1)；To the second chemical combination
It is slowly injected into the sulfuric acid that mass concentration is 25-30% in tank, reaches reaction end；
(6) barium sulfate obtained in step (5) is separated by solid-liquid separation through the second plate filter, by desulfurization, deacidification, the
Finished product sulfuric acid barium is dried to obtain in two pan dryers；
(7) sodium hydroxide solution that step (4) obtains is as absorbing liquid in spray column atomizing spray, absorption step (5)
The hydrogen sulfide gas of generation, the saturation vulcanized sodium Precipitation generated in the reaction process；Precipitating dehydration, drying in sedimentation basin,
Obtain vulcanized sodium product.
The beneficial effects of the present invention are: coupling technique route is integrated using mirabilite method and sulfuric acid process, with absorption operation generation
For evaporating and concentrating process, high energy consumption issues of traditional mirabilite method technique during obtaining by-product vulcanized sodium are solved, are mentioned simultaneously
For the barium sulfate product of different qualities, wherein the barium sulfate product whiteness of high-quality is high, particle diameter distribution is narrow, specific surface area
Height, product quality is high, and positioning is high in the market, realizes the target that industry energy conservation increases income.In addition, this process is easy to operate, raw
Produce it is at low cost, can according to need adjustment different product yield ratio.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the substance conversion line map of the method for production barium sulfate and vulcanized sodium of the invention；
Fig. 2 is the process flow chart of the method for production barium sulfate and vulcanized sodium of the invention.
Wherein, 1 rotary kiln, 2 leaching cans, 3-1 settling tank, 3-2ization nitre tank, the first chemical combination of 4-1 tank, 4-2 the second chemical combination tank,
The first plate filter of 5-1, the second plate filter of 5-2, the first pan dryer of 6-1, the second pan dryer of 6-2,6-3
Three pan dryers, 7 dissolving tanks, 8 spray columns, 9 settling tanks.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and technology, method and apparatus should be considered as authorizing specification
A part.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, rather than
As limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label and word
Mother indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
It does not need that it is further discussed.
Embodiment 1
As shown in Figure of description 2, the barium sulfate of the present embodiment and the production method of vulcanized sodium specifically include following step
It is rapid:
(1)BaSO4Stock: by barite (BaSO4) and coal dust (C) high temperature reduction reaction is carried out in rotary kiln 1, control
It 1000~1200 DEG C of temperature, reacts 1.5~3 hours.After obtaining barium sulphide clinker, the leaching of leaching can 2 is first passed through, leaching can is controlled
85 DEG C of temperature or more；Then it is settled by settling tank 3-1, acquisition mass concentration is 130~160g/L barium sulfide solution, spare.
Reaction principle is as follows:
BaSO4+4C→BaS+4CO
(2) it configures saltcake solution: dissolving saltcake in nitre tank 3-2 changing, control saltcake concentration of polymer solution in 0.9-1.5g/
mL；
(3) it metathesis reaction: will be obtained in a part and step (2) of the clear barium sulfide solution obtained in step (1)
The saltcake solution obtained is injected the first chemical combination and is filled in 4-1 and reacted by reaction ratio；
Reaction principle is as follows:
BaS+Na2SO4→BaSO4+Na2S
Wherein, barium sulphide and saltcake reaction generate blanc fixe, and sodium sulfide solution mass percent concentration is 4~8%.
(4) it is separated by solid-liquid separation: by the reaction product of step (3) through the first plate filter 5-1, being separated by solid-liquid separation, obtained
Blanc fixe and filtered fluid, blanc fixe by washing, pickling, filters pressing, complete in the first pan dryer 6-1 it is dry
To finished product sulfuric acid barium.The finished product sulfuric acid barium A that the process obtains, whiteness are 92~93, and the mass fraction of partial size < 10 μm is 85%,
Meet market Grade A quality standard.Filtered fluid injects dissolution caustic soda (NaOH) in dissolving tank 7 and forms sodium hydroxide solution, control
0.2~0.4g/mL of concentration of sodium hydroxide in sodium hydroxide solution.
(5) the clear barium sulfide solution obtained in remaining step (1) is directly injected into the second chemical combination tank 4- of sealing
2；It is slowly injected into mass concentration into the second chemical combination tank 4-2 and is the sulfuric acid of 25-30%, until reaching reaction end；
Reaction principle is as follows:
BaS+H2SO4→BaSO4+H2S
Wherein, barium sulphide and sulfuric acid reaction generate blanc fixe, and generate hydrogen sulfide gas.
(6) be separated by solid-liquid separation: the barium sulfate obtained in step (5) is separated by solid-liquid separation through the second plate filter 5-2, is taken off
Sulphur, deacidification complete drying in the second pan dryer 6-2, obtain finished product sulfuric acid barium B, and the finished product sulfuric acid barium which obtains is white
Degree is 95~97, and the mass fraction of partial size < 10 μm is 95%, and the mass fraction of partial size < 5 μm is 70%, the matter of partial size < 2.5 μm
Measuring score is 25%, meets market high-class product quality standard.Filtrate changes nitre process dissolution saltcake for step (2).
(7) sodium hydroxide solution for obtaining step (4) is as absorbing liquid in 8 atomizing spray of spray column, absorption step (5)
The hydrogen sulfide gas of middle generation, reaction principle are as follows:
2NaOH+H2S+5H2O→Na2S.6H2O
Vulcanized sodium is generated in the reaction process, in combination with water, is saturated vulcanized sodium (hydrate) Precipitation.Work as hydrogen
When the concentration of sodium hydroxide is lower than 0.2g/mL in sodium hydroxide solution, hydrogen sulfide gas absorption efficiency is low, when sodium hydroxide in solution
Concentration when being higher than 0.4g/mL, have alkaline matter sodium hydroxide in the vulcanized sodium of precipitation.(vulcanized sodium saturation is molten for slurries
The precipitating of liquid and precipitation) enter settling tank 9, further precipitate.Vulcanized sodium is deposited in and completes to do in third pan dryer 6-3
It is dry, it can get vulcanized sodium product, settling tank supernatant liquor can return to dissolving tank or directly spray in spray column to be recycled.
Wherein, for the barium sulfide solution of step (3) and step (5) both from step (1), dosage volume ratio is 1:
(0.5-3)；It is reusable for absorbing the lye of hydrogen sulfide in step (7).
Scheme disclosed in embodiment 1, eliminates evaporating and concentrating process, solves traditional mirabilite method by-product vulcanized sodium process
High energy consumption issues, while solving the Utilizing question of hydrogen sulfide gas.It can produce the barium sulfate of different qualities in this technique,
In, the product whiteness of high-quality is high, particle diameter distribution is narrow, specific surface area is high, and positioning is high in the market, and profit is considerable.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of production method of vulcanized sodium, which is characterized in that the by-product vulcanized sodium for obtaining mirabilite method production barium sulfate is molten
Alkaline cleaning in liquid, gained alkaline solution is used to absorb the hydrogen sulfide gas of Production By Sulfuric Acid Process barium sulfate generation, to be directly precipitated
Vulcanized sodium solid.
2. the production method of vulcanized sodium as described in claim 1, it is characterised in that the alkaline cleaning is to use sodium sulfide solution
It dissolves caustic soda and forms sodium hydroxide solution, the hydrogen sulfide gas for absorbing the generation of Production By Sulfuric Acid Process barium sulfate is by the hydrogen-oxygen
Change sodium solution as absorbing liquid in spray column atomizing spray, absorbs the hydrogen sulfide gas.
3. the production method of vulcanized sodium as claimed in claim 2, it is characterised in that sodium hydroxide in the sodium hydroxide solution
Concentration be 0.2~0.4g/mL.
4. the production method of the vulcanized sodium as described in one of claim 1-3, it is characterised in that include the following steps:
(1) barite and coal dust carry out high temperature reduction reaction in roaster, obtain barium sulphide clinker, are leached, settled, obtained
Clear barium sulfide solution is obtained, it is spare；
(2) changing dissolution saltcake acquisition saltcake solution in nitre tank, it is spare；
(3) the clear barium sulfide solution in part in step (1) and saltcake solution is anti-by carrying out in reaction ratio injection chemical combination filling
It answers；
(4) sodium sulfide solution after obtaining barium sulfate and separation；The barium sulfate that separation obtains passes through washing, pickling, filters pressing, drying
Obtain finished product sulfuric acid barium；Sodium hydroxide solution is formed with filtered fluid dissolution caustic soda；
(5) clear barium sulfide solution remaining in step (1) is directly injected into the chemical combination tank of sealing；It is slowly infused into chemical combination tank
Enter the sulfuric acid that mass concentration is 25-30%, reaches reaction end；
(6) barium sulfate obtained in step (5) is separated by solid-liquid separation, by desulfurization, deacidifies, is dried to obtain finished product sulfuric acid barium；
(7) sodium hydroxide solution for obtaining step (4) produces in spray column atomizing spray, absorption step (5) as absorbing liquid
Raw hydrogen sulfide gas, the saturation vulcanized sodium Precipitation generated in the reaction process；By the dehydration of vulcanized sodium precipitating, drying, obtain
Obtain vulcanized sodium product.
5. the production method of vulcanized sodium as claimed in claim 4, it is characterised in that clear barium sulphide is molten in the step (1)
Liquid concentration is 130~160g/L；And/or saltcake concentration of polymer solution is 0.6-1.8g/mL in step (2)；And/or step (3)
Volume ratio with barium sulfide solution in step (5) is 1:(0.5-3).
6. the production method of a kind of barium sulfate and vulcanized sodium, it is characterised in that the following steps are included:
(1) barium sulfate finished product and by-product sodium sulfide solution are obtained using mirabilite method；
(2) barium sulfate finished product and hydrogen sulfide gas are obtained using sulfuric acid process；
(3) with metabisulfite solution dissolution caustic soda formation sodium hydroxide solution is obtained in step (1), by the sodium hydroxide solution of acquisition
As absorbing liquid atomizing spray, the hydrogen sulfide gas generated in absorption step (2), the saturation vulcanized sodium generated in the reaction process
Precipitation.
7. the production method of a kind of barium sulfate and vulcanized sodium, it is characterised in that include the following steps:
(1) barite and coal dust carry out high temperature reduction reaction in rotary kiln, obtain barium sulphide clinker, are leached, settled, obtained
Clear barium sulfide solution is obtained, it is spare；
(2) changing dissolution saltcake acquisition saltcake solution in nitre tank, it is spare；
(3) the clear barium sulfide solution in part in step (1) and saltcake solution is anti-by carrying out in reaction ratio injection chemical combination filling
It answers；
(4) sodium sulfide solution after obtaining barium sulfate and separation；The barium sulfate that separation obtains passes through washing, pickling, filters pressing, drying
Obtain finished product sulfuric acid barium；Sodium hydroxide solution is formed with filtered fluid dissolution caustic soda；
(5) clear barium sulfide solution remaining in step (1) is directly injected into the chemical combination tank of sealing；It is slowly infused into chemical combination tank
Enter the sulfuric acid that mass concentration is 25-30%, reaches reaction end；
(6) barium sulfate obtained in step (5) is separated by solid-liquid separation, by desulfurization, deacidifies, is dried to obtain finished product sulfuric acid barium；
(7) sodium hydroxide solution for obtaining step (4) produces in spray column atomizing spray, absorption step (5) as absorbing liquid
Raw hydrogen sulfide gas, the saturation vulcanized sodium Precipitation generated in the reaction process；By the dehydration of vulcanized sodium precipitating, drying, obtain
Obtain vulcanized sodium product.
8. the production method of barium sulfate as claimed in claim 7 and vulcanized sodium, it is characterised in that this method further include:
(1)BaSO4Stock: barite and coal dust are subjected to high temperature reduction reaction in rotary kiln, control temperature 1000~1200
DEG C, it reacts 1.5~3 hours；After obtaining barium sulphide clinker, leaching can leaching, 85 DEG C of leaching can temperature of control or more are first passed through；So
It is settled afterwards by settling tank, acquisition mass concentration is 130~160g/L barium sulfide solution, spare；
(2) it configures saltcake solution: dissolving saltcake in nitre tank changing, control saltcake concentration of polymer solution in 0.9-1.5g/mL；
(3) metathesis reaction: by what is obtained in a part and step (2) of the clear barium sulfide solution obtained in step (1)
Saltcake solution is injected in the filling of the first chemical combination by reaction ratio and is reacted；
(4) it is separated by solid-liquid separation: the reaction product of step (3) is separated by solid-liquid separation, obtain blanc fixe and filtered fluid, precipitated sulfur
Sour barium passes through washing, pickling, is dried to obtain finished product sulfuric acid barium；It is molten that filtered fluid injects dissolution caustic soda formation sodium hydroxide in dissolving tank
Liquid controls 0.2~0.4g/mL of concentration of sodium hydroxide in sodium hydroxide solution；
(5) the clear barium sulfide solution obtained in remaining step (1) is directly injected into the second chemical combination tank of sealing；To second
It is slowly injected into mass concentration in chemical combination tank and is the sulfuric acid of 25-30%, until reaching reaction end；
(6) be separated by solid-liquid separation: after the barium sulfate obtained in step (5) is separated by solid-liquid separation, obtaining blanc fixe, by desulfurization,
It deacidifies, be dried to obtain finished product sulfuric acid barium；
(7) sodium hydroxide solution for obtaining step (4) produces in spray column atomizing spray, absorption step (5) as absorbing liquid
Raw hydrogen sulfide gas, the saturation vulcanized sodium Precipitation generated in the reaction process；It, can by the dehydration of vulcanized sodium precipitating, drying
Obtain vulcanized sodium product.
9. a kind of production line for producing barium sulfate and vulcanized sodium including the production line using mirabilite method production barium sulfate and uses sulphur
The production line of acid system production barium sulfate, it is characterised in that the production line further includes dissolving tank, spray column and settling tank, and mirabilite method is raw
It produces dissolution caustic soda in the by-product sodium sulfide solution injection dissolving tank of the production line acquisition of barium sulfate and forms sodium hydroxide solution；Institute
Sodium hydroxide solution is stated as absorbing liquid in spray column atomizing spray, absorbs and is produced using the production line of Production By Sulfuric Acid Process barium sulfate
Raw hydrogen sulfide gas is to obtain vulcanized sodium product.
10. the production line of production barium sulfate and vulcanized sodium according to claim 9, it is characterised in that the production line specifically wraps
It includes rotary kiln, leaching can, settling tank, change nitre tank, the first chemical combination tank, the second chemical combination tank, the first plate filter, the second sheet frame mistake
Filter, the first pan dryer, the second pan dryer, third pan dryer, dissolving tank, spray column and settling tank；The life
The operation of producing line sequentially includes the following steps:
(1) barite and coal dust carry out high temperature reduction reaction in rotary kiln, obtain barium sulphide clinker, leached by leaching can,
Settling tank sedimentation, obtains clear barium sulfide solution；
(2) change dissolution saltcake in nitre tank and obtain saltcake solution；
(3) the clear barium sulfide solution in part and saltcake solution are carried out by reaction ratio injection the first chemical combination filling is interior in step (1)
Reaction；
(4) reaction product of step (3) is separated by solid-liquid separation through the first plate filter, obtains blanc fixe and filtered fluid,
Blanc fixe is by being dried to obtain finished product sulfuric acid barium in washing, pickling, filters pressing, the first pan dryer；Filtered fluid injection is molten
It solves dissolution caustic soda in tank and forms sodium hydroxide solution；
(5) remaining clear barium sulfide solution is directly injected into the second chemical combination tank of sealing in step (1)；Into the second chemical combination tank
It is slowly injected into the sulfuric acid that mass concentration is 25-30%, reaches reaction end；
(6) barium sulfate obtained in step (5) is separated by solid-liquid separation through the second plate filter, by desulfurization, deacidification, the second disk
Finished product sulfuric acid barium is dried to obtain in formula drier；
(7) sodium hydroxide solution that step (4) obtains generates in spray column atomizing spray, absorption step (5) as absorbing liquid
Hydrogen sulfide gas, the saturation vulcanized sodium Precipitation generated in the reaction process；Precipitating dehydration, dry, acquisition in sedimentation basin
Vulcanized sodium product.
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| CN110563017A (en) * | 2019-09-17 | 2019-12-13 | 龙蟒佰利联集团股份有限公司 | Method for preparing sulfuric acid by utilizing sulfuric acid method titanium dioxide byproduct |
| CN113030380A (en) * | 2021-01-29 | 2021-06-25 | 中船重工（邯郸）派瑞特种气体有限公司 | Device and method for producing barium sulfate as byproduct in trifluoromethanesulfonic acid production |
| CN113213522A (en) * | 2021-06-09 | 2021-08-06 | 龙蟒佰利联集团股份有限公司 | Method for co-producing barium sulfate and sodium sulfide from titanium white waste acid and iron-based pigment wastewater |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563017A (en) * | 2019-09-17 | 2019-12-13 | 龙蟒佰利联集团股份有限公司 | Method for preparing sulfuric acid by utilizing sulfuric acid method titanium dioxide byproduct |
| CN113030380A (en) * | 2021-01-29 | 2021-06-25 | 中船重工（邯郸）派瑞特种气体有限公司 | Device and method for producing barium sulfate as byproduct in trifluoromethanesulfonic acid production |
| CN113030380B (en) * | 2021-01-29 | 2023-07-04 | 中船(邯郸)派瑞特种气体股份有限公司 | Device and method for producing byproduct barium sulfate in production of trifluoromethanesulfonic acid |
| CN113213522A (en) * | 2021-06-09 | 2021-08-06 | 龙蟒佰利联集团股份有限公司 | Method for co-producing barium sulfate and sodium sulfide from titanium white waste acid and iron-based pigment wastewater |
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