CN103896311A - Production equipment of lithium sulfate purified concentrated solution - Google Patents
Production equipment of lithium sulfate purified concentrated solution Download PDFInfo
- Publication number
- CN103896311A CN103896311A CN201410103325.2A CN201410103325A CN103896311A CN 103896311 A CN103896311 A CN 103896311A CN 201410103325 A CN201410103325 A CN 201410103325A CN 103896311 A CN103896311 A CN 103896311A
- Authority
- CN
- China
- Prior art keywords
- outlet
- vaporizer
- import
- lithium sulphate
- concentrated solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses production equipment for implementing a production method of a lithium sulfate purified concentrated solution. The production equipment comprises a rotary calciner; a device for grinding a beta-spodumene roasted material, wherein the inlet of the grinding device is connected with the outlet of the rotary calciner; an acidizing roasting kiln for acidizing and roasting beta-spodumene fine powder and sulfuric acid, wherein the inlet of the acidizing roasting kiln is connected with a discharge cabin of the grinding device; a leaching tank for leaching an acidized clinker, wherein the inlet of the leaching tank is connected with the outlet of the acidizing roasting kiln; a filter device for filtering leached slurry; a purifying and filtering device for purifying, edulcorating and filtering the leached liquor, wherein the inlet of the purifying and filtering device is connected with the outlet of the filter device; and an MVR (Mechanical Vapor Recompression) evaporator for evaporating and concentrating the lithium sulfate purified solution, wherein the inlet of the MVR evaporator is connected with the outlet of the purifying and filtering device. The production equipment can lower the production cost of the lithium sulfate purified concentrated solution.
Description
Technical field
The present invention relates to the production unit that a kind of Lithium Sulphate purifies concentrated solution.
Background technology
In existing triphane sulfuric acid process, Lithium Sulphate purification concentrated solution production method is to utilize single-action or triple-effect evaporator to carry out evaporation concentration to Lithium Sulphate scavenging solution.Wherein, the actual consumption 0.4-0.5t steam that needs of triple-effect evaporator evaporation 1t water, approximately need 80-100 unit (steam price by 200 yuan/t).
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.For this reason, one object of the present invention is to propose a kind of production unit that purifies the production method of concentrated solution for implementing Lithium Sulphate.
To achieve these goals, propose a kind of production unit that purifies the production method of concentrated solution for implementing Lithium Sulphate according to the present invention, described production unit comprises: for roasting kiln transition of roasting that described triphane concentrate is made the transition; For the device that described β-triphane roasting material is carried out to fine grinding, the import of described fine grinding device is connected with roasting kiln outlet transition; For described β-triphane fine powder and described sulfuric acid are carried out to acidizing fired acidizing fired kiln, the import of described acidizing fired kiln is connected with the outlet feed bin of described fine grinding device; For the leaching vat that described acidifying grog is leached, the import of described leaching vat is connected with the outlet of described acidizing fired kiln; For described leaching is starched to the filtration unit filtering, the import of described filtration unit is connected with described leaching vat outlet; For the filtration equipment for clarifying that leach liquor is carried out to purification and impurity removal filtration, the import of described filtration equipment for clarifying is connected with the outlet of described filtration unit; For described Lithium Sulphate scavenging solution being carried out to the MVR vaporizer of evaporation concentration, the import of described MVR vaporizer is connected with the outlet of described filtration equipment for clarifying.
According to the embodiment of the present invention for implementing the production unit of production method that Lithium Sulphate purifies concentrated solution by MVR vaporizer is set, thereby can utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, purify the production cost of concentrated solution thereby not only can reduce described Lithium Sulphate, and can reduce the floor space of described production unit.
The production unit that existing Lithium Sulphate purifies concentrated solution utilizes triple-effect evaporator to carry out evaporation concentration to Lithium Sulphate scavenging solution.Wherein, Lithium Sulphate scavenging solution evaporation 1t water need to consume 0.3t-0.4t steam, approximately need 60-80 unit (price of steam be 200 yuan/t).Be 40kwh-60kwh and utilize the current consumption of the concentrated 1t water of MVR evaporator evaporation, about 20 yuan-30 yuan, the equipment reducing more than 50% takes up an area.
In addition, the production unit that purifies the production method of concentrated solution for implementing Lithium Sulphate according to the above embodiment of the present invention can also have following additional technical characterictic:
According to one embodiment of present invention, described MVR vaporizer comprises: vaporizer, and the opening for feed of described vaporizer is connected with the outlet of described filtration unit; And compressor, the import of described compressor is connected with the vapour outlet of described vaporizer and outlet is connected with the steam-in of described vaporizer.
According to one embodiment of present invention, described MVR vaporizer also comprises preheater, and the import of described preheater is connected with the outlet of described scavenging solution storage tank and outlet is connected with the opening for feed of described vaporizer.Can utilize thus described preheater to carry out preheating to described Lithium Sulphate scavenging solution, thereby can improve the vaporization efficiency of described vaporizer.
According to one embodiment of present invention, described grading material device is high-pressure roller mill.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the schema that purifies the production method of concentrated solution according to the Lithium Sulphate of the embodiment of the present invention;
Fig. 2 is the structural representation that purifies the MVR vaporizer of the production unit of the production method of concentrated solution for implementing Lithium Sulphate according to the embodiment of the present invention.
MVR vaporizer 10, vaporizer 100, compressor 200, preheater 300
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of instructions such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, except as otherwise noted, the implication of " multiple " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can particular case understand above-mentioned term concrete meaning in the present invention.
The production method that purifies concentrated solution according to the Lithium Sulphate of the embodiment of the present invention is described below with reference to Fig. 1.As shown in Figure 1, comprise the following steps according to the production method of the Lithium Sulphate purification concentrated solution of the embodiment of the present invention:
To the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material;
β-triphane roasting material is carried out to fine grinding, and obtain β-triphane fine powder;
Described β-triphane fine powder mixed with sulfuric acid and carry out acidizing firedly, obtaining acidifying grog;
In described acidifying grog, add water, obtain leach liquor through sizing mixing, leach, filtering.In other words, in acidifying grog, add wash water, the leaching slurry of sizing mixing to obtain.
Described leach liquor (leaching slurry) is carried out to purification and impurity removal filtration, and obtain Lithium Sulphate scavenging solution.That is to say, purification of leaching liquor filters to obtain Lithium Sulphate scavenging solution.
Utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, and obtain described Lithium Sulphate purification concentrated solution.
The production method that purifies concentrated solution according to the Lithium Sulphate of the embodiment of the present invention is by utilizing MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, purify the production cost of concentrated solution thereby not only can reduce described Lithium Sulphate, and can reduce the floor space of the production unit of the production method of implementing described Lithium Sulphate purification concentrated solution.
Existing Lithium Sulphate purifies the production method of concentrated solution and utilizes triple-effect evaporator to carry out evaporation concentration to Lithium Sulphate scavenging solution.Wherein, Lithium Sulphate scavenging solution evaporation 1t water need to consume 0.3t-0.4t steam, approximately need 60-80 unit (price of steam be 200 yuan/t).Be 40kwh-60kwh and utilize the current consumption of the concentrated 1t water of MVR evaporator evaporation, about 20 yuan-30 yuan, the equipment reducing more than 50% takes up an area.
The production method that purifies concentrated solution according to the Lithium Sulphate of the embodiment of the present invention has the advantages such as running cost is low, energy consumption is low, the occupation of land of saving equipment.
Advantageously, can be under the condition of 1050 DEG C-1100 DEG C to the roasting that makes the transition of described triphane concentrate.
In some embodiments of the invention, can utilize high-pressure roller mill to carry out selection by winnowing to described β-triphane roasting material, and obtain particle diameter and be less than or equal to β-triphane particle that described β-triphane fine powder of preset value and particle diameter are greater than described preset value.Then can utilize described high-pressure roller mill to carry out fine grinding to described β-triphane particle, and obtain described β-triphane fine powder that particle diameter is less than or equal to preset value.By utilizing described high-pressure roller mill to carry out selection by winnowing to described β-triphane roasting material, β-triphane fine powder that can first the particle diameter in described β-triphane roasting material be less than or equal to preset value is selected, thereby can reduce the material that enters fine grinding operation, reduce running cost and the energy consumption of fine grinding operation.
That is to say, utilize high-pressure roller mill to carry out fine grinding to described β-triphane roasting material, the concentrate of qualified particle diameter is preferentially selected, and the concentrate of off grade size reaches particle diameter requirement after fine grinding, can energy efficient, reduce the running cost of fine grinding operation.
Particularly, the particle diameter of described β-triphane fine powder can be within the scope of 95 order-200 objects.
Advantageously, the sulfuric acid that can be 93%-98% by concentration mixes with described β-triphane fine powder, then can the mixture of described β-triphane fine powder and described sulfuric acid be carried out described acidizing fired under the condition of 250 DEG C-280 DEG C.
After described acidizing fired end, can be by water and described acidifying grog in (1.5-2.5): 1 ratio is mixed.
The present invention also provides a kind of production unit that purifies the production method of concentrated solution for implementing described Lithium Sulphate.Comprise roasting kiln transition for roasting that described triphane concentrate is made the transition according to the production unit that purifies the production method of concentrated solution for implementing described Lithium Sulphate of the embodiment of the present invention, for the device that described β-triphane roasting material is carried out to fine grinding, for described β-triphane fine powder and described sulfuric acid are carried out to acidizing fired acidizing fired kiln, for the leaching vat that described acidifying grog is leached, for described leaching is starched to the filtration unit filtering, for leach liquor is carried out to the filtration equipment for clarifying of purification and impurity removal filtration and for described Lithium Sulphate scavenging solution being carried out to the MVR vaporizer 10 of evaporation concentration.
The import of described fine grinding device is connected with roasting kiln outlet transition, the import of described acidizing fired kiln is connected with the outlet feed bin of described fine grinding device, the import of described leaching vat is connected with the outlet of described acidizing fired kiln, the import of described filtration unit is connected with described leaching vat outlet, the import of described filtration equipment for clarifying is connected with the outlet of described filtration unit, and the import of MVR vaporizer 10 is connected with the outlet of described filtration equipment for clarifying.
According to the embodiment of the present invention for implementing the production unit of production method that described Lithium Sulphate purifies concentrated solution by MVR vaporizer 10 is set, thereby can utilize MVR vaporizer 10 to carry out evaporation concentration to described Lithium Sulphate scavenging solution, purify the production cost of concentrated solution thereby not only can reduce described Lithium Sulphate, and can reduce the floor space of described production unit.
The production unit that existing Lithium Sulphate purifies concentrated solution utilizes triple-effect evaporator to carry out evaporation concentration to Lithium Sulphate scavenging solution.Wherein, need to consume 0.3t-0.4t steam to Lithium Sulphate scavenging solution evaporation 1t water, approximately need 60-80 unit (price of steam be 200 yuan/t).Be 40kwh-60kwh and utilize the current consumption of the concentrated 1t water of MVR evaporator evaporation, about 20 yuan-30 yuan, the equipment reducing more than 50% takes up an area.
As shown in Figure 2, in examples more of the present invention, MVR vaporizer 10 can comprise vaporizer 100 and compressor 200.The opening for feed of vaporizer 100 can be connected with the outlet of described filtration unit.The import of compressor 200 can be connected with the vapour outlet of vaporizer 100 and the outlet of compressor 200 can be connected with the steam-in of vaporizer 100.
In an example of the present invention, as shown in Figure 2, MVR vaporizer 10 can also comprise preheater 300, and the import of preheater 300 can be connected with the outlet of described filtration unit and the outlet of preheater 300 can be connected with the opening for feed of vaporizer 100.Can utilize thus preheater 300 to carry out preheating to described Lithium Sulphate scavenging solution, thereby can improve the vaporization efficiency of vaporizer 100.
Particularly, described grading material device can be high-pressure roller mill.
Can also comprise leaching flow container according to the filtration unit of the production unit of the embodiment of the present invention.Particularly, the leach liquor after described filtration unit filters can be stored in described leaching flow container, and the import of described filtration equipment for clarifying can be connected with the outlet of described leaching flow container.
Embodiment 1
Under the condition of 1050 DEG C, to the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material.Then utilize high-pressure roller mill to carry out fine grinding to β-triphane roasting material, and obtain β-triphane fine powder.
The sulfuric acid that is then 93% by described β-triphane fine powder and concentration mixes and under the condition that is incorporated in 280 DEG C, carries out acidizing firedly, obtains acidifying grog.In described acidifying grog, add water, obtain leach liquor through sizing mixing, leach to filter.The mass ratio of wherein said acidifying grog and water is 1.5:1.
Described leach liquor is filtered, and obtain Lithium Sulphate scavenging solution.Finally utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, and obtain described Lithium Sulphate purification concentrated solution.
Embodiment 2
Under the condition of 1100 DEG C, to the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material.Then utilize high-pressure roller mill to carry out fine grinding to β-triphane roasting material, and obtain β-triphane fine powder.
The sulfuric acid that is then 98% by described β-triphane fine powder and concentration mixes and under the condition that is incorporated in 260 DEG C, carries out acidizing firedly, obtains acidifying grog.In described acidifying grog, add water, obtain leach liquor through sizing mixing, leach to filter.The mass ratio of wherein said acidifying grog and water is 2:1.
Described leach liquor is filtered, and obtain Lithium Sulphate scavenging solution.Finally utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, and obtain described Lithium Sulphate purification concentrated solution.
Embodiment 3
Under the condition of 1080 DEG C, to the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material.Then utilize high-pressure roller mill to carry out fine grinding to β-triphane roasting material, and obtain β-triphane fine powder.
The sulfuric acid that is then 98% by described β-triphane fine powder and concentration mixes and under the condition that is incorporated in 250 DEG C, carries out acidizing firedly, obtains acidifying grog.In described acidifying grog, add water, obtain leach liquor through sizing mixing, leach to filter.The mass ratio of wherein said acidifying grog and water is 2.5:1.
Described leach liquor is filtered, and obtain Lithium Sulphate scavenging solution.Finally utilize MVR vaporizer to carry out evaporation concentration to described Lithium Sulphate scavenging solution, and obtain described Lithium Sulphate purification concentrated solution.
Comparative example 1
Under the condition of 1050 DEG C, to the roasting that makes the transition of triphane concentrate, and obtain β-triphane roasting material.Then utilize abrasive dust equipment to carry out abrasive dust to β-triphane roasting material, obtain β-triphane fine powder.The sulfuric acid that is then 93% by described β-triphane fine powder and concentration mixes and under the condition that is incorporated in 280 DEG C, carries out acidizing firedly, obtains acidifying grog.In described acidifying grog, add water, and obtain leach liquor.The mass ratio of wherein said acidifying grog and water is 2:1.Described leach liquor is filtered, and obtain Lithium Sulphate scavenging solution.
As utilize the method in the present invention, and more traditional ball mill+triple-effect evaporator method, obtains described Lithium Sulphate and purifies concentrated solution, and it is 5000-6500 unit that the above-mentioned Lithium Sulphate of preparation 100t purifies concentrated solution escapable cost.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (4)
1. a production unit that purifies concentrated solution production method for implementing Lithium Sulphate, is characterized in that, comprising:
For roasting kiln transition of roasting that described triphane concentrate is made the transition;
For the device that described β-triphane roasting material is carried out to fine grinding, the import of described fine grinding device is connected with roasting kiln outlet transition;
For described β-triphane fine powder and described sulfuric acid are carried out to acidizing fired acidizing fired kiln, the import of described acidizing fired kiln is connected with the outlet feed bin of described fine grinding device;
For the leaching vat that described acidifying grog is leached, the import of described leaching vat is connected with the outlet of described acidizing fired kiln;
For described leaching is starched to the filtration unit filtering, the import of described filtration unit is connected with described leaching vat outlet;
For the filtration equipment for clarifying that leach liquor is carried out to purification and impurity removal filtration, the import of described filtration equipment for clarifying is connected with the outlet of described filtration unit;
For described Lithium Sulphate scavenging solution being carried out to the MVR vaporizer of evaporation concentration, the import of described MVR vaporizer is connected with the outlet of described filtration equipment for clarifying.
2. the production unit that purifies the production method of concentrated solution for implementing described Lithium Sulphate according to claim 1, is characterized in that, described MVR vaporizer comprises:
Vaporizer, the opening for feed of described vaporizer is connected with the outlet of described filtration equipment for clarifying;
Compressor, the import of described compressor is connected with the vapour outlet of described vaporizer and outlet is connected with the steam-in of described vaporizer.
3. the production unit that purifies the production method of concentrated solution for implementing described Lithium Sulphate according to claim 2, it is characterized in that, described MVR vaporizer also comprises preheater, and the import of described preheater is connected with the outlet of described scavenging solution storage tank and outlet is connected with the opening for feed of described vaporizer.
4. according to the production unit that purifies the production method of concentrated solution for implementing described Lithium Sulphate described in any one in claim 1-3, it is characterized in that, described fine grinding device is high-pressure roller mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103325.2A CN103896311A (en) | 2014-03-19 | 2014-03-19 | Production equipment of lithium sulfate purified concentrated solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103325.2A CN103896311A (en) | 2014-03-19 | 2014-03-19 | Production equipment of lithium sulfate purified concentrated solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103896311A true CN103896311A (en) | 2014-07-02 |
Family
ID=50987944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410103325.2A Pending CN103896311A (en) | 2014-03-19 | 2014-03-19 | Production equipment of lithium sulfate purified concentrated solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103896311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640130A (en) * | 2018-06-26 | 2018-10-12 | 中国科学院青海盐湖研究所 | By the rough method for preparing lithium sulfate of salt lake sulfuric acid lithium salts |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2360017C2 (en) * | 2007-10-04 | 2009-06-27 | Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" (ОАО "ВНИИХТ") | METHOD OF CONCENTRATED SOLUTIONS OF LITHIUM SULFATE RECEIVING FROM CONCENTRATE OF β-SPODUMENE |
| CN202506152U (en) * | 2012-03-11 | 2012-10-31 | 甘肃蓝科石化高新装备股份有限公司 | Plate type evaporator device with mechanical vapor recompressor (MVR) |
| CN102765734A (en) * | 2012-07-13 | 2012-11-07 | 江西赣锋锂业股份有限公司 | Method for preparing lithium salts from lithium extracted from spodumene |
| CN103086405A (en) * | 2013-01-05 | 2013-05-08 | 阿坝中晟锂业有限公司 | Clean production method of battery level lithium carbonate |
| CN203208704U (en) * | 2013-04-19 | 2013-09-25 | 上海远跃制药机械股份有限公司 | Single-effect falling-film MVR (mechanical vapour recompression) evaporation system |
| CN203355311U (en) * | 2013-06-13 | 2013-12-25 | 苏州乔发蒸发器制造有限公司 | Improved MVR evaporator |
| CN203447809U (en) * | 2013-07-05 | 2014-02-26 | 重庆江增船舶重工有限公司 | MVR (Mechanical Vapor Recompression) evaporative crystallization system |
| CN203890073U (en) * | 2014-03-19 | 2014-10-22 | 中国恩菲工程技术有限公司 | Production equipment of lithium sulfate purifying concentrate |
-
2014
- 2014-03-19 CN CN201410103325.2A patent/CN103896311A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2360017C2 (en) * | 2007-10-04 | 2009-06-27 | Открытое акционерное общество "Ведущий научно-исследовательский институт химической технологии" (ОАО "ВНИИХТ") | METHOD OF CONCENTRATED SOLUTIONS OF LITHIUM SULFATE RECEIVING FROM CONCENTRATE OF β-SPODUMENE |
| CN202506152U (en) * | 2012-03-11 | 2012-10-31 | 甘肃蓝科石化高新装备股份有限公司 | Plate type evaporator device with mechanical vapor recompressor (MVR) |
| CN102765734A (en) * | 2012-07-13 | 2012-11-07 | 江西赣锋锂业股份有限公司 | Method for preparing lithium salts from lithium extracted from spodumene |
| CN103086405A (en) * | 2013-01-05 | 2013-05-08 | 阿坝中晟锂业有限公司 | Clean production method of battery level lithium carbonate |
| CN203208704U (en) * | 2013-04-19 | 2013-09-25 | 上海远跃制药机械股份有限公司 | Single-effect falling-film MVR (mechanical vapour recompression) evaporation system |
| CN203355311U (en) * | 2013-06-13 | 2013-12-25 | 苏州乔发蒸发器制造有限公司 | Improved MVR evaporator |
| CN203447809U (en) * | 2013-07-05 | 2014-02-26 | 重庆江增船舶重工有限公司 | MVR (Mechanical Vapor Recompression) evaporative crystallization system |
| CN203890073U (en) * | 2014-03-19 | 2014-10-22 | 中国恩菲工程技术有限公司 | Production equipment of lithium sulfate purifying concentrate |
Non-Patent Citations (6)
| Title |
|---|
| 中国环境科学学会: "《中国环境科学学会学术年会 论文集 2011 第二卷》", 31 December 2011, article "机械压缩蒸发浓缩", pages: 1066-1067 * |
| 何睦盈等: "机械蒸汽再压缩（MVR）技术的发展及应用", 《广东化工》, vol. 40, no. 17, 31 December 2013 (2013-12-31), pages 115 - 116 * |
| 卢寿慈等: "《粉体技术手册》", 31 July 2004, article "其他干法超细粉碎工艺" * |
| 宋茜茜等: "MVR热泵技术及其在国内制盐工艺上的应用", 《盐业与化工》, vol. 43, no. 1, 31 January 2014 (2014-01-31), pages 31 - 35 * |
| 屠海令等: "《有色金属冶金、材料、再生与环保》", 31 January 2003, article "硫酸焙烧法" * |
| 赵家荣等: "《"十二五"重点节能工程研究报告》", 30 April 2013, article "机械式蒸汽再压缩技术", pages: 217-219 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640130A (en) * | 2018-06-26 | 2018-10-12 | 中国科学院青海盐湖研究所 | By the rough method for preparing lithium sulfate of salt lake sulfuric acid lithium salts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103896310A (en) | Preparation method of lithium sulfate purified concentrate | |
| CN203890073U (en) | Production equipment of lithium sulfate purifying concentrate | |
| CN103146930B (en) | Method for preparing vanadium oxide | |
| CN103435073B (en) | Method for producing potassium chloride by using blast furnace dust of iron and steel enterprises | |
| CN103849774A (en) | Method for recycling waste SCR (Selective Catalytic Reduction) catalyst | |
| CN104140082B (en) | A kind of recoverying and utilizing method of titanium white waste acid | |
| CN102020299B (en) | Method for producing industrial activated aluminum oxide from pulverized fuel ash | |
| CN102515213A (en) | Integrated utilization method of low grade magnesite | |
| CN103397209B (en) | Method for extracting vanadium from high-calcium and high-phosphorus vanadium slag | |
| CN106947864B (en) | A kind of system and its processing method recycling heavy metal from discarded SCR catalyst | |
| CN103818966B (en) | Large-specific surface area superfine powdery iron oxide red spray roasting method | |
| CN101386909A (en) | Method for extracting rare-earth from ardealite | |
| CN102910676B (en) | Preparation method of high-purity vanadium pentoxide | |
| CN105668592A (en) | Production method for low-sodium high-purity potassium chloride | |
| CN104003427A (en) | Method for preparing sheet high-purity lithium hydroxide by using spodumene concentrate | |
| CN102296179A (en) | Method for producing tungsten-molybdenum product by processing tungsten-molybdenum symbiotic mixed ore | |
| CN102092754B (en) | Method for removing impurity iron in aluminum sulfate solution through ion exchange | |
| CN101348298B (en) | Rapid method for removing chromium in waste water | |
| CN101209844B (en) | Technique for preparing high quality boric acid from salt lake type boron ore by one-step method | |
| CN103896311A (en) | Production equipment of lithium sulfate purified concentrated solution | |
| CN105836805B (en) | A method of utilizing the cleaning of low-grade tungsten tin mine, environmental protection production ammonium paratungstate | |
| CN1884092B (en) | Method for removing calcium ion in zinc sulphate solution | |
| CN207142844U (en) | A kind of system of hydrochloric acid method treated coal ash production aluminum oxide | |
| CN101880772A (en) | Method for recycling magnesium from magnesium-containing waste solution | |
| CN103920458A (en) | Preparation method for water body eutrophication treatment rare earth composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140702 |