CN105836779A - Apparatus of converting celestite into strontium carbonate under cavitation effect - Google Patents
Apparatus of converting celestite into strontium carbonate under cavitation effect Download PDFInfo
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- CN105836779A CN105836779A CN201610180898.4A CN201610180898A CN105836779A CN 105836779 A CN105836779 A CN 105836779A CN 201610180898 A CN201610180898 A CN 201610180898A CN 105836779 A CN105836779 A CN 105836779A
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- China
- Prior art keywords
- conversion
- celestite
- cavitation effect
- strontium carbonate
- dividing plate
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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
- C01F11/18—Carbonates
- C01F11/186—Strontium or barium carbonate
- C01F11/187—Strontium carbonate
Abstract
An apparatus of converting celestite into strontium carbonate under cavitation effect belongs to the field of chemical machinery. A support is arranged on edges of a conversion trough. A motor is arranged on the support. A stirring device is arranged on one end of an output shaft of the motor. A pipe and a pump are disposed on the bottom of one end of the conversion trough. A pipeline is arranged on the top of one end of the conversion trough. More than one separating boards or an ultrasonic cavitation effect generation apparatus is disposed in the conversion trough, wherein the ultrasonic cavitation effect generation apparatus is connected to a power supply. The apparatus increases conversion rate of strontium carbonate to 95-99.8%, has significant effects, increases use efficiency of the reaction reagent, carbonate, reduces usage amount of the carbonate, greatly saves cost, and avoids environment pollution due to waste liquid and increases additional value of the product.
Description
Technical field:
The invention belongs to smelting field of nonferrous metal, be specifically related under a kind of celestite cavitation effect assosting effect be converted into carbonic acid
The device of strontium.
Background technology:
Celestite is the main mineral of strontium, and whole world celestite maldistribution of the resources, the mineral deposit with Development volue is few.China
Celestine deposit be mainly distributed on the provinces and regions such as Qinghai, Jiangsu, Sichuan, Shaanxi, Hubei, Yunnan.Due to China's strontium ore deposit origin cause of formation not
With, though causing Strontium ore deposit reserves very big, but average grade is relatively low, quality not as Mexico, Spain, Turkey, Iran,
The strontium ore deposit of state's family properties such as Pakistan.From the celestite ore product grade of Iran's import typically more than 85%, and domestic goods ore deposit
Grade is 60% ~ 80%.
Celestite is to prepare strontium carbonate and prepare the most former of other strontium salt such as strontium chloride, Preparation of Metallic Strontium with strontium carbonate for raw material
Material.Celestite is prepared in the strontium salt such as strontium carbonate, and first celestite is converted into water soluble or acid soluble containing strontium compound, then
Purification and impurity removal, reprecipitation or condensing crystallizing obtain various strontium salt products further.Effectively converting of celestite is prepared by celestite
The various strontium salt such as core process such as strontium chloride, strontium carbonate.
The conversion of domestic current celestite is divided into carbon reduction conversion method (dry method) and double decomposition conversion method (wet method).
(1) celestite carbon reduction conversion method.Enterprise's commonly used celestite carbon reduction of China's large-scale production strontium salt turns
The technique of change method produces strontium salt such as strontium carbonate, strontium chloride etc..
Celestite conversion method is to grind coal dust and celestite ore respectively to sieve, and according to the mixing of certain proportion scale all
Even, then reduction roasting 1 ~ 2h under the hot conditions of 1100 ~ 1200 DEG C, by the SrSO in Ore4It is reduced into and there is water soluble
The SrS calcining of property:
SrSO4+2C=SrS+2CO2
The calcining water of reduction roasting leaches so that SrS can fully dissolve in water, obtains Sr (HS)2With Sr (OH)2
Mixed liquor:
2SrS+2H2O=Sr(HS)2+Sr(OH)2
Mixed liquor adds sulphuric acid and removes Ba therein, to realize the separation of Ba and Sr.
The solution removing the impurity such as Ba is passed through CO2Carry out decomposition and can obtain strontium carbonate, it is also possible to add HCl and obtain SrCl2:
Sr(HS)2+Sr(OH)2+2CO2=2SrCO3+2H2S+H2O
Sr(HS)2+Sr(OH)2+4HCl=2SrCl2+2H2S+2H2O
When carbon reduction method conversion method produces the strontium salt such as strontium carbonate, " three wastes " are seriously polluted and administer numerous and diverse, and material content is required height
And conversion ratio is relatively low.
(2) double decomposition conversion method is prepared the product such as strontium salt and is used Whote-wet method technique, its be by fine grinding after celestite carbon
Hydrochlorate carries out being converted into the strontium carbonate that acid can be leached.
Celestite, before conversion, uses hydrochloric acid etc. with impurity such as Ca, Mg of removing in celestite, uses Na the most again2CO3Or
NH4HCO3Convert:
SrSO4+Na2CO3=SrCO3+Na2SO4
SrSO4+NH4HCO3=SrCO3+NH4HSO4
Thick strontium carbonate water cyclic washing after conversion is repeatedly in neutrality, to wash away Na therein2SO4、Na2CO3After Deng, to
Wherein add dust technology or dilute hydrochloric acid and carry out the leaching of strontium carbonate:
SrCO3+2HCl=SrCl2+CO2+H2O
Leachate adds saturated NaOH solution, makes the magnesium of solubility, calcium, ferrum, aluminium salt generate insoluble hydroxide, passes through
Filtering the impurity such as magnesium, calcium, ferrum, aluminum, the solution ph after remove impurity is 14.In this solution, add 50% dust technology or hydrochloric acid is adjusted
Joint pH is 6, and condensing crystallizing obtains strontium chloride or strontium nitrate, adds soda ash solution or ammonium hydrogen carbonate precipitates, then obtain strontium carbonate
Product:
Sr(NO3)2+Na2CO3=SrCO3+2NaNO3
The strontium carbonate of precipitation, through repeatedly washing, is then dried 24h at 180 ~ 200 DEG C, obtains final products SrCO3Powder.
Although double decomposition conversion method avoids the pollution problem of carbon reduction method, but technological process is long, the multiple saliferous of by-product
Solution, its need reclaim, compared with dry method, cost seems too high.
Current celestite carbon reduction conversion method prepares strontium salt, and to there are " three wastes " seriously polluted and administer numerous and diverse, contains raw material
The problems such as amount requires high and conversion ratio relatively low；And although tradition double decomposition conversion method is prepared strontium salt and is avoided the pollution of carbon reduction method
Problem, but to there is conversion ratio low between 40～60%, high in cost of production problem for its technique.
Therefore, how to improve celestite conversion ratio in double decomposition, the cost etc. reducing double decomposition is celestite resource
The key problem developed.
Summary of the invention: the present invention is directed to above-mentioned technical problem, the present invention provides a kind of lower turn of celestite cavitation effect effect
Turn to the device of strontium carbonate, it is characterised in that: the edge of conversion tank (2) is provided with support, and support is provided with motor (1),
The output shaft of motor is connected with agitating device (6), is provided with pipeline (4), pump (3), conversion tank bottom one end of conversion tank (2)
(2) top, one end is provided with pipeline, is provided with dividing plate (5) or ultrasonic cavitation effect generation device in conversion tank (2)
(8).
Described dividing plate (5) is one piece, and dividing plate (5) is arranged in conversion tank (2), dividing plate (5) and the inlet tube of conversion tank (2)
Road (4) is vertically arranged, and dividing plate is provided with through hole on (5).
(5) one pieces or more than one piece of described dividing plate, dividing plate (5) is arranged in conversion tank (2), dividing plate (5) and conversion
Groove (2) wall is vertically arranged.
Described ultrasonic cavitation effect generation device (8) is connected with power supply (7), ultrasonic cavitation effect generation device (8)
Matrix arrangement is in conversion tank (2) or ultrasonic cavitation effect generation device (8) irregular alignment is in conversion tank (2).
The cavitation effect action condition that described cavitation generating means produces is as follows: (1) high-pressure pump cavitation conditions (one piece every
Plate): pressure at least 3.8～6.5Mpa, power reach 25 ~ 500kW, flow is 3.4～5.0m3/h；(2) spiral vortex cavitation
Condition (one piece with upper spacer): spiral vortex blade rotating speed is 3000 ~ 10000r/min, flow velocity is 3.4～20m/s；(3) ultrasonic
Ripple cavitation conditions: ultrasonic frequency is 15 kHz ~ 1MHz, electric current is 7 ~ 1000A, and power is 0.5 ~ 1000kW.
The cavitation principle of the present invention is: cavitation effect generator, in strontium carbonate conversion process, acts on carbonic acid
A large amount of minute bubbles can be produced during saline solution.On the one hand in liquid, local occurs that tension forms negative pressure, and the reduction of pressure makes former
It is dissolved in gas overflowing or the solution boils of liquid, becomes minute bubbles.On the other hand it is that powerful tension " is torn liquid "
Become a cavity, be liquid vapors or the another kind of gas being dissolved in liquid in cavity, in some instances it may even be possible to be vacuum.Because cavitation is formed
Minute bubbles can constantly move with the vibration of surrounding medium, grow up or crumble and fall suddenly.When crumbling and fall, surrounding liquid pours suddenly gas
Steep and produce high temperature, high pressure, produce powerful shear stress simultaneously.Microbubble (cavitation nucleus) the partial Pressure peak being present in liquid
Value, up to hundreds of jets even going up kilo-atmospheric pressure and speed per hour 400km/h, produces moment upper 1000K temperature simultaneously.
Owing to producing moment upper 1000K temperature, carbonate solution is made to accelerate with strontium sulfate response speed, for tradition strontium carbonate
About 373K displacement temperature during conversion can not be compared；Secondly because during crumbling and fall partial Pressure peak value up to hundreds of even
Upper kilo-atmospheric pressure and the jet of speed per hour 400km/h, produce powerful shear stress and make conversion be deposited on the strontium carbonate on strontium sulfate surface
Peel off, so that the strontium sulfate wrapped up by strontium carbonate is exposed, then participate in the conversion reaction between carbonate, thus improve celestite
It is converted into the transformation efficiency of strontium carbonate.
Positive role produced by the present invention:
(1), during being converted into strontium carbonate based on the celestite under cavitation effect effect, improve strontium sulfate and be converted into strontium carbonate
Conversion ratio, under this technique, the conversion ratio of strontium carbonate reaches 95 ~ 99.8%, ratio traditional handicraft 40 ~ 60% raising 35 ~ 59.8%, effect
Fruit is notable.
(2), during converting strontium carbonate based on the celestite under cavitation effect effect, conversion reaction speed is accelerated, simultaneously
Moment produces under the effect of High Temperature High Pressure and stripping strontium sulfate surface resultant, improves the use effect of reaction reagent carbonate
Rate, reduces the consumption of carbonate, is greatly saved cost；
(3) sulfate in conversional solution is concentrated by evaporative crystallization and prepares sulfate by this technique, has both avoided waste liquid to environment
Pollution add again added value of product.
Accompanying drawing illustrates:
Fig. 1 is the device schematic diagram of embodiment 1；
Fig. 2 is the device schematic diagram of embodiment 2；
Fig. 3 is the device schematic diagram of embodiment 3；
Wherein: 1, motor, 2, conversion tank, 3, pump, 4, pipeline, 5, dividing plate, 6, agitating device, 7, power supply, 8, ultrasonic air
Change effect generation device.
Specific embodiment:
Embodiment 1: be converted into the device of strontium carbonate under a kind of celestite cavitation effect effect, it is characterised in that: conversion tank (2)
Edge is provided with support, and support is provided with motor (1), and the output shaft end of motor is provided with agitating device (6), converts
Being provided with pipeline (4), pump (3) bottom one end of groove (2), the other end top of conversion tank (2) is provided with pipeline, conversion tank (2)
Inside it is provided with dividing plate (5), dividing plate (5) is provided with through hole, (5) one pieces of described dividing plate.Described cavitation generating means produces
Cavitation effect action condition is as follows: (1) high-pressure pump cavitation conditions (one piece of dividing plate): pressure at least 3.8～6.5Mpa, power reach
It is 3.4～5.0m to 25 ~ 500kW, flow3/h。
Embodiment 2: be converted into the device of strontium carbonate under a kind of celestite cavitation effect effect, it is characterised in that: conversion tank
(2) edge is provided with support, and support is provided with motor (1), and the output shaft end of motor is provided with agitating device
(6), being provided with pipeline (4), pump (3) bottom one end of conversion tank (2), the top, one end of conversion tank (2) is provided with pipeline, converts
Being provided with dividing plate (5) in groove (2), more than (5) one pieces of described dividing plate, dividing plate (5) is vertically arranged with conversion tank (2) wall.Institute
The cavitation effect action condition that the cavitation generating means stated produces is as follows: spiral vortex cavitation conditions (a piece with upper spacer): spiral shell
Bumpy flow blade rotating speed is 3000 ~ 10000r/min, flow velocity is 3.4～20m/s.
Embodiment 3: be converted into the device of strontium carbonate under a kind of celestite cavitation effect effect, it is characterised in that: conversion tank
(2) edge is provided with support, and support is provided with motor (1), and the output shaft end of motor is provided with agitating device
(6), being provided with pipeline (4), pump (3) bottom one end of conversion tank (2), the top, one end of conversion tank (2) is provided with pipeline, converts
Ultrasonic cavitation effect generation device (8), described ultrasonic cavitation effect generation device (8) and power supply (7) it is provided with in groove (2)
Connect.The cavitation effect action condition that described cavitation generating means produces is as follows: ultrasonic cavitation condition: ultrasonic frequency is
15 kHz ~ 1MHz, electric current is 7 ~ 1000A, and power is 0.5 ~ 1000kW.
Claims (4)
1. under a celestite cavitation effect effect, it is converted into the device of strontium carbonate, it is characterised in that: the edge of conversion tank (2) sets
Being equipped with support, support is provided with motor (1), the output shaft of motor is connected with agitating device (6), the one of conversion tank (2)
Bottom portion is provided with pipeline (4), pump (3), and the top, one end of conversion tank (2) is provided with pipeline, and conversion tank is provided with dividing plate in (2)
Or ultrasonic cavitation effect generation device (8) (5).
Being converted into the device of strontium carbonate under a kind of celestite cavitation effect effect the most according to claim 1, its feature exists
In: described dividing plate (5) is one piece, and dividing plate (5) is arranged in conversion tank (2), dividing plate (5) and the inlet pipeline (4) of conversion tank (2)
Being vertically arranged, dividing plate is provided with through hole on (5).
Being converted into the device of strontium carbonate under a kind of celestite cavitation effect effect the most according to claim 1, its feature exists
In: (5) one pieces or more than one piece of described dividing plate, dividing plate (5) is arranged in conversion tank (2), dividing plate (5) and conversion tank (2)
Wall is vertically arranged.
Being converted into the device of strontium carbonate under a kind of celestite cavitation effect effect the most according to claim 1, its feature exists
In: described ultrasonic cavitation effect generation device (8) is connected with power supply (7), and ultrasonic cavitation effect generation device (8) matrix is arranged
It is listed in conversion tank (2) or ultrasonic cavitation effect generation device (8) irregular alignment is in conversion tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180898.4A CN105836779A (en) | 2016-03-28 | 2016-03-28 | Apparatus of converting celestite into strontium carbonate under cavitation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180898.4A CN105836779A (en) | 2016-03-28 | 2016-03-28 | Apparatus of converting celestite into strontium carbonate under cavitation effect |
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| Publication Number | Publication Date |
|---|---|
| CN105836779A true CN105836779A (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610180898.4A Pending CN105836779A (en) | 2016-03-28 | 2016-03-28 | Apparatus of converting celestite into strontium carbonate under cavitation effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179473A (en) * | 2018-10-24 | 2019-01-11 | 南昌航空大学 | A kind of short-cut method and device preparing coralliform carbonic acid strontium crystal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001077021A1 (en) * | 2000-04-12 | 2001-10-18 | Tübitak-Marmara Research Center | Production of strontium carbonate from celestite |
| CN101274262A (en) * | 2008-04-23 | 2008-10-01 | 株洲市兴民科技有限公司 | Method for improving zinc powder activity with ultrasonic, device and application thereof |
| CN102220493A (en) * | 2011-07-27 | 2011-10-19 | 昆明冶金研究院 | Method and device for purifying zinc sulfate solution based on action of cavitation effect |
| CN104192882A (en) * | 2014-08-15 | 2014-12-10 | 中国科学院过程工程研究所 | Method for synthesizing strontium carbonate from celestite by high-temperature static reduction-pressurization conversion |
-
2016
- 2016-03-28 CN CN201610180898.4A patent/CN105836779A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001077021A1 (en) * | 2000-04-12 | 2001-10-18 | Tübitak-Marmara Research Center | Production of strontium carbonate from celestite |
| CN101274262A (en) * | 2008-04-23 | 2008-10-01 | 株洲市兴民科技有限公司 | Method for improving zinc powder activity with ultrasonic, device and application thereof |
| CN102220493A (en) * | 2011-07-27 | 2011-10-19 | 昆明冶金研究院 | Method and device for purifying zinc sulfate solution based on action of cavitation effect |
| CN104192882A (en) * | 2014-08-15 | 2014-12-10 | 中国科学院过程工程研究所 | Method for synthesizing strontium carbonate from celestite by high-temperature static reduction-pressurization conversion |
Non-Patent Citations (1)
| Title |
|---|
| 贾上远等: "用超声波技术制备高纯SrCO3", 《重庆大学学报（自然科学版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179473A (en) * | 2018-10-24 | 2019-01-11 | 南昌航空大学 | A kind of short-cut method and device preparing coralliform carbonic acid strontium crystal |
| CN109179473B (en) * | 2018-10-24 | 2020-04-28 | 南昌航空大学 | Simple method for preparing coralline strontium carbonate crystal |
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Application publication date: 20160810 |
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