CN109133139A - A method of sub-micro nano-barium sulfate is prepared using pump type reaction - Google Patents
A method of sub-micro nano-barium sulfate is prepared using pump type reaction Download PDFInfo
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- CN109133139A CN109133139A CN201710454868.2A CN201710454868A CN109133139A CN 109133139 A CN109133139 A CN 109133139A CN 201710454868 A CN201710454868 A CN 201710454868A CN 109133139 A CN109133139 A CN 109133139A
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- Prior art keywords
- barium sulfate
- pump
- barium
- high speed
- reaction
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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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a kind of saltcake-grey black method production barium sulfate pump type reaction production sub-micro nano-barium sulfate new technologies.Specially according to the reaction temperature of technological design, flow and ratio, control barium sulfide solution and metabisulfite solution inlet amount, enter mixed at high speed after pump intake converges in proportion to pump, reach full turbulence state by moment the effects of the shearing of pump, centrifugation extruding, liquid layer friction, after fast reaction generates barium sulfate, into Mixer pot, mixed liquor III after Mixer pot is aged enters plate and frame filter press or other separation equipments isolate sig water, and barium sulfate barium cake washs through mashing, adjusts acid, is separated by solid-liquid separation, is dry, breaing up to obtain sub-micro nano-barium sulfate finished product.This technology production barium sulfate partial size is small, narrow distribution range, the good application effect on powdery paints.
Description
Technical field: the present invention discloses the industrial applications that pump type reaction produces barium sulfate industry in saltcake-grey black method,
The technical method of production sub-micro nano-barium sulfate is reacted specifically by pump type.
Background technique: it is with saltcake-grey black method production barium sulfate production technology in barium sulfate industry: black with water-soluble leaching
Resulting barium sulfide solution and metabisulfite solution are anti-after ash (product obtained after barite calcining, main component is barium sulphide)
It answers, generates barium sulfate precipitate and concentration as 4~5% sodium sulfide solution.The sulfuric acid of the currently used pot type reaction production of industry
Barium product haves the shortcomings that product cut size is big, distribution is wide, poor using glossiness, levelability in powdery paints, influences
The application of product.The combination reaction control of barium sulfate is to influence the key factor of barium sulfate partial size and distribution, and the present invention is logical
Cross that pump type reaction new technology generates barium sulfate product partial size is small, narrow distribution range, evaluation partial size reaches submicron order, and real
Continuous production, stable product quality are showed.Sub-micron barium sulfate product partial size is small, and narrow distribution range is in powdery paints application energy
Glossiness, the levelability for enough improving powdery paints, have more excellent application performance.
Summary of the invention: the present invention provides a kind of methods that production submicron-grade barium sulfate product is reacted by pump type.
The present invention is achieved by the following technical scheme:
(1) accurate to control barium sulfide solution and metabisulfite solution inlet amount according to the flow of technological design and ratio, it presses
Ratio enters mixed at high speed pump (centrifugal pump or Homogenizing pump etc.) after pump intake converges and carries out successive reaction.
(2) the effects of being rubbed by the shearing of mixed at high speed pump (centrifugal pump, Homogenizing pump etc.), centrifugation extruding, liquid layer moment
Reach full turbulence state, after fast reaction generates barium sulfate, into Mixer pot.
(3) reaction solution is pumped into plate and frame filter press after Mixer pot is aged, and after isolating sig water, is washed with deionized
Barium sulfate barium cake.
(4) after washed barium sulfate barium cake is beaten, adjusts acid, using solid-liquid separating equipment (plate and frame filter press, sleeping spiral shell
Centrifuge) isolate cleaning solution.
(5) the barium cake after washing is dried, breaks up, and obtains sub-micron barium sulfate product.
The advantage of this method is barium sulfate partial size, the distribution model generated in production process using pump type successive reaction technology
It encloses and is superior to chemical combination pot type chemical combination.The D50 of finished product drops to 0.9 μm hereinafter, D90 drops to 1.5 by 3 μm by current 1.5 μm
μm hereinafter, particle diameter distribution section is stablized, the barium sulfate product quality of production is stablized.Pump type reaction continuously prepares barium sulfate skill
Art, it is more high-efficient than intermittent reaction (pot type chemical combination) chemical combination, at low cost, labor intensity of workers is low.
The present invention has rational design, using the barium sulfate fine particles of pump type reaction preparation small, narrow distribution range, production with partial size
Quality is stablized, and glossiness, the levelability purpose of enhancing powdery paints are reached.
Detailed description of the invention
Fig. 1 pump type reaction production sub-micro nano-barium sulfate technique barium sulfide solution and metabisulfite solution can also pass through metering pump
Accurate measurement is carried out, other solid-liquid separating equipments can also be used in plate and frame filter press.
Fig. 2 pot type chemical combination barium sulfate product.
Fig. 3 pump type reacts barium sulfate product.
Specific embodiment
Embodiment 1
(1) with gained barium sulfide solution 200L, concentration 137g/L, temperature 70 C, nitre liquid 75L, concentration after water-soluble leaching grey black
310g/L, temperature 70 C；
(2) control barium sulfide solution inlet amount is 12L/min, and metabisulfite solution inlet amount is 4.5L/min.Into centrifugation
Pump carries out high speed shear, enters Mixer pot after mixing；
(3) reaction solution is pumped into plate and frame filter press after Mixer pot is aged, and after isolating sig water, is carried out with deionized water
Wash barium sulfate barium cake；
(4) mashing of washed barium sulfate barium cake, adjust acid after, into solid-liquid separating equipment (plate and frame filter press, sleeping spiral shell from
Scheming) separating, washing liquid；
(5) the barium cake after washing is dried, breaks up；
(6) barium sulfate partial size: D50≤0.86 μm, D90≤1.49 μm is detected.
Embodiment 2
(1) barium sulfide solution 200L, concentration 120g/L, 65 DEG C of temperature obtained by after water-soluble leaching grey black, nitre liquid 67.28L,
68 DEG C of concentration 300g/L, temperature；
(2) control barium sulfide solution inlet amount is 10L/min, and metabisulfite solution inlet amount is 3.364L/min.Into equal
Matter pump carries out high speed shear, enters Mixer pot after mixing；
(3) reaction solution is pumped into plate and frame filter press after Mixer pot is aged, and after isolating sig water, is carried out with deionized water
Wash barium sulfate barium cake；
(4) mashing of washed barium sulfate barium cake, adjust acid after, into solid-liquid separating equipment (plate and frame filter press, sleeping spiral shell from
Scheming) separating, washing liquid；Barium sulfate barium cake is washed with deionized；
(5) the barium cake after washing is dried, breaks up；
(6) barium sulfate partial size: D50≤0.89 μm, D90≤1.50 μm is detected.
Claims (4)
1. a kind of method for preparing barium sulfate using pump type combination reaction, it is characterised in that following steps:
It is accurate to control barium sulfide solution and metabisulfite solution inlet amount according to the reaction temperature of technological design, flow and ratio, it presses
Ratio enters mixed at high speed pump after pump intake converges and carries out continuous combination reaction.
2. the mixed at high speed used pumps as centrifugal pump, Homogenizing pump, turbulence pump according to described in claims (1).
3. being adjusted the speed by being pumped to mixed at high speed, adjusting and optimizing barium sulfate product partial size according to described in claims (1).
4. the reaction solution of mixed at high speed pump output, after Mixer pot is aged, filters pressing, mashing, adjusts acid, filters pressing, drying, breaks up at washing
After obtain barium sulfate product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454868.2A CN109133139A (en) | 2017-06-16 | 2017-06-16 | A method of sub-micro nano-barium sulfate is prepared using pump type reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454868.2A CN109133139A (en) | 2017-06-16 | 2017-06-16 | A method of sub-micro nano-barium sulfate is prepared using pump type reaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109133139A true CN109133139A (en) | 2019-01-04 |
Family
ID=64830297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710454868.2A Pending CN109133139A (en) | 2017-06-16 | 2017-06-16 | A method of sub-micro nano-barium sulfate is prepared using pump type reaction |
Country Status (1)
| Country | Link |
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| CN (1) | CN109133139A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5751119A (en) * | 1980-09-11 | 1982-03-25 | Onahama Sakai Kagaku Kk | Ultrafine barium sulfate |
| CN1431971A (en) * | 2000-05-31 | 2003-07-23 | 索尔瓦钡/锶有限公司 | Micropowdered barium sulfate |
| CN105329930A (en) * | 2014-08-11 | 2016-02-17 | 北京化工大学 | Method for preparing nanometer barium sulfate by using molecule mixing strengthening reactor |
-
2017
- 2017-06-16 CN CN201710454868.2A patent/CN109133139A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5751119A (en) * | 1980-09-11 | 1982-03-25 | Onahama Sakai Kagaku Kk | Ultrafine barium sulfate |
| CN1431971A (en) * | 2000-05-31 | 2003-07-23 | 索尔瓦钡/锶有限公司 | Micropowdered barium sulfate |
| CN105329930A (en) * | 2014-08-11 | 2016-02-17 | 北京化工大学 | Method for preparing nanometer barium sulfate by using molecule mixing strengthening reactor |
Non-Patent Citations (2)
| Title |
|---|
| 朱洪法: "《精细化工产品配方与制造 （第四册）》", 31 August 1999, 金盾出版社 * |
| 陈英军: ""反应沉淀法制备超细硫酸钡的研究"", 《河北化工》 * |
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Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |