CN103435259A - Composition for removing metal and metal oxide and application of thereof - Google Patents
Composition for removing metal and metal oxide and application of thereof Download PDFInfo
- Publication number
- CN103435259A CN103435259A CN2013103511254A CN201310351125A CN103435259A CN 103435259 A CN103435259 A CN 103435259A CN 2013103511254 A CN2013103511254 A CN 2013103511254A CN 201310351125 A CN201310351125 A CN 201310351125A CN 103435259 A CN103435259 A CN 103435259A
- Authority
- CN
- China
- Prior art keywords
- metal
- composition
- metal oxide
- mineral
- breeze
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a composition for removing metal and metal oxide. The composition comprises the following raw materials in parts by weight: 80-120 parts of hydrochloric acid with the weight percentage of 10-20%, 80-120 parts of acetic acid with the weight percentage of 25-35%, and 0-10 parts of phosphorus trichloride with the weight percentage of 5-15%. The composition achieves the removal rate of 50-80% in removing or degrading metal and metal oxide in mineral, meanwhile has no or a little influence on useful non-metal substances in mineral, and can solve the problems of complex procedures, low production efficiency, high treatment cost and the like of the conventional mineral processing method; raw mineral materials treated by the composition provided by the invention meet the requirement of quality standards, and the treatment method is environment-friendly and causes no environmental pollution.
Description
Technical field
The invention belongs to the mineral manufacture field, relate to a kind of composition and application thereof of removing metal and metal oxide.
Background technology
Mineral wealth belong to nonrenewable resources, and its reserves are limited.On the one hand, along with the increase of produced quantity, the mineral wealth of high-quality reduce day by day, and expensive, use more and more lean ore and complicated ore; On the other hand, science and technology and industrial expansion are more and more higher to the requirement of raw mineral materials quality, and directly the raw ore of exploitation does not often reach to mark and pushes away; Lean ore and complicated ore and raw ore need to could meet people's productive life demand through the mineral manufacturing procedure.
The mineral such as sandstone, silica sand, Wingdale, calcite, rhombspar, chalk, magnesite, feldspar, kaolin are the industry starting material commonly used such as glass, pottery, papermaking, building materials, according to purposes and demand attractive in appearance, whiteness to these raw mineral materialss has different requirements, but, in the raw ore of nature output, often because containing some metals and metal oxide, affect its whiteness.As the main component of Wingdale is calcium carbonate, in the preparation glasswork, be mainly used in introducing the calcium oxide composition, but often contain iron in Wingdale, ferric oxide and other cause painted metal and metal oxide, affect high-clarity and the whiteness of glass; The kaolin main component is aluminum oxide, silicon-dioxide, is widely used in papermaking, pottery etc., according to the difference of its purposes, kaolinic whiteness is had to different requirements, paper industry requires whiteness to coating level kaolin>83%, high-grade porcelain raw material is made in ceramic industry, requires containing Fe
2o
3<0.5%.Therefore must remove metal and metal oxide before processing, to improve its industrial value, realize the comprehensive utilization of raw mineral materials.
The mineral working method of removing metal and metal oxide commonly used has physical method and chemical process, and physical method is commonly used magnetic method, dual liquid flotation method, magnetic kind magnetic method etc.; Chemical process is commonly used molten method, extraction process, the chlorination high-temperature roasting method etc. of soaking, and the report microbial process is separately arranged.That the molten method of soaking in chemical process has is simple to operate, process thoroughly, the even characteristics of raw mineral materials quality after processing, is used widely.Leaching method commonly used has that acid system, alkaline process, salt soak, cyaniding, water logging, organic reagent lixiviation process etc., and leaching agent commonly used has sulfuric acid, hydrochloric acid, alkaline ammonium salt etc.In a lot of dirts, the disseminated grain size of metal and metal oxide is superfine, and Independent Mineral and isomorph be stored in mineral, thereby physical method can not obtain desirable effect as magnetic separation, in this case, chemical process has just shown the effect of particularly important.Large-scale development along with Mineral resources, although adopt some new chemical reagent and process modification, the direct production cost of processing is still in rising trend, and when removing metal and metal oxide, useful composition is also removed in the lump, caused damage.For the rational exploitation and utilization Mineral resources, the demand of adapt to economic development development, resist the impact of market value, the high mineral working method in the urgent need to simplification, the production efficiency of production sequence.
Summary of the invention
The purpose of this invention is to provide composition and the application thereof of a kind of novel removal, degraded metal and metal oxide, the problem such as can overcome existing working method complex procedures, production efficiency is low, processing cost is high, the requirement that reaches quality standards of raw mineral materials after processing with the present composition, do not affect non-metal kind material useful in mineral or affect very little simultaneously, the treatment process environmental protection, free from environmental pollution.
The technical scheme that the present invention takes is:
A kind of composition of removing metal and metal oxide, contain hydrochloric acid and acetic acid.Described hydrochloric acid, acetic acid can be any concentration as required, and described hydrochloric acid is preferably the hydrochloric acid that weight percent is 10-20%, and described acetic acid is preferably the acetic acid that weight percent is 25-35%.
The composition that the above removes metal and metal oxide, also contain phosphorus trichloride, is easy-to-operate, first is mixed with the aqueous solution before use, is preferably the phosphorus trichloride that weight percent is 5-15%.
The above removes the composition of metal and metal oxide, the raw material that contains following weight part: hydrochloric acid 80-120 part that weight percent is 10-20%, acetic acid 80-150 part that weight percent is 25-35%, phosphorus trichloride 0-20 part that weight percent is 5-15%.
The composition that the above removes metal and metal oxide, preferably contain the raw material of following weight part: 12 parts of the phosphorus trichlorides that 120 parts of the acetic acid that 100 parts of the hydrochloric acid that weight percent is 15%, weight percent are 30%, weight percent are 8%.
The ultimate principle of technical scheme that the present invention adopts is as follows:
The molten method of soaking in chemical process is by metal and metal oxide in chemical agent selective dissolution mineral, the method for then removing.The present invention adopts mineral acid hydrochloric acid that acidity is stronger and acidity than the acetic acid combination of weak organic acid, and chemical equation is:
2M+2xHCl→2MCl
x+xH
2↑，M
2Ox+2xHCl→2MCl
x+xH
2O；
2M+2xCH3COOH→2M（CH3COO）
x+xH
2↑，M
2Ox+2xCH3COOH→2M（CH3COO）
x+xH
2O；
M is metallic element.
After adding hydrochloric acid and acetic acid, metal and metal oxide generate soluble salt and remove.
Can add phosphorus trichloride in hydrochloric acid and acetic acid, as chlorizating agent, catalyzer, accelerate chemical reaction velocity.Phosphorus trichloride reacts with water in solution, and the phosphorous acid of generation, hydrochloric acid can participate in the reaction of dissolution of metals and metal oxide, and chemical equation is:
PCl
3+3H
2O→H
3PO
3+3HCl
The above removes the application of metal and metal oxide composition, and described composition can be used for removing metal or the metal oxide in mineral.Described mineral refer to by the formed natural simple substance of geologic function or compound, stable in certain physical and chemical condition scope, it is the elementary cell that forms rock and ore, chemical element is that eight kinds of elements of basic substance Yang ﹑ Gui ﹑ Lv ﹑ Tie ﹑ Gai ﹑ Na ﹑ Jia ﹑ magnesium of mineral composition have just accounted for 97% of earth's crust gross weight, wherein oxygen accounts for half of earth's crust gross weight, silicon takes up an area more than 1/4 of shell gross weight, old place shell mesosilicic acid salt mineral distribute the widest, they have formed the chief component mineral of various rocks in the earth's crust, also contain other metallic elements in mineral.Because industry development needs, described mineral are preferably the raw material of products such as preparing glass, pottery, as: one or more combinations in sandstone, silica sand, Wingdale, calcite, rhombspar, chalk, magnesite, feldspar and kaolin, the best is preferably Wingdale.Described metal comprises the metal that can be dissolved in composition of the present invention, be preferably one or more combinations in iron, aluminium, chromium and magnesium, described metal oxide comprises the metal oxide that can be dissolved in composition of the present invention, be preferably one or more combinations in iron protoxide, ferric oxide, Z 250, aluminum oxide, chromic oxide and magnesium oxide, the best is preferably the oxide compound of metallic iron and iron.
The using method of the composition of more than one described removal metals and metal oxide comprises following operation steps:
1. take raw material by following weight part: hydrochloric acid 80-120 part that weight percent is 10-20%, acetic acid 80-150 part that weight percent is 25-35%, phosphorus trichloride 0-20 part that weight percent is 5-15%, mix, obtain mixture A;
2. mixture A is mixed by weight 1:50-200 with water, stir, obtain mixture B;
3. mineral are pulverized, crossed the 8-16 order and divide cribellum, obtain breeze, ore powder granularity is the 8-125 order, can further sieve and remove thinner breeze as required;
4. breeze is heated to temperature 70-90 ℃ under thermostatted, the breeze agitator tank upper strata of packing into, by breeze with mixture B by mixing by weight 1:2-4, stir 1-3 minute, put into the agitator tank middle level that screen cloth is arranged at bottom, filter, the solution of filtering is put agitator tank lower floor, and breeze dries, and gets final product.The order of screen cloth is several to be set according to needs.Place gac in agitator tank lower floor, absorption impurity, described impurity, for the compound of reaction generation with by the breeze of screen cloth, filters, and filtrate is looked concentration and is added hydrochloric acid, acetic acid or phosphorus trichloride, recycles.
Through the dilution after mixture B acidity a little less than, very slow with reacting of metal and metal oxide under normal temperature, inactive metal and metal oxide even do not produce chemical reaction, breeze is heated to 70-90 ℃, and contained metal and metal oxide are comparatively active, after the present composition fully contacts, chemical reaction can occur fast, after processing, reaction product is the metallic salts such as soluble hydrochloride, acetate, is dissolved in solution, easily removes.Remain in a small amount of hydrochloric acid in breeze, after dry, with HCl gas, remove, remain in a small amount of acetic acid in breeze, on not impact of mineral quality, remain in a small amount of phosphorous acid in breeze, be oxidized to phosphoric acid in air, on mineral quality also not impact, therefore, the present invention can not need to wash with water mineral.
Before removing metal and metal oxide, answer the detection of advanced row metal element, select concentration and the proportioning of raw material according to detected result, can reach removal, degradation effect preferably.
The invention has the beneficial effects as follows:
1. the present invention has overcome the chemical solution method of soaking and has removed in metal and metal oxide the shortcoming that adopts single acid to exist: only with hydrochloric acid, can, when removing metal and metal oxide, cause composition loss in mineral useful; Only use acetic acid, acidity a little less than, speed of response is slow, and inactively removes metal and metal oxide can not be removed; The present invention adopts mineral acid hydrochloric acid that acidity is stronger and acidity than the acetic acid combination of weak organic acid, mineral are after 70-90 ℃ of activation, when removing metal and metal oxide, do not affect non-metal kind material useful in mineral or affect very little, add as required chlorizating agent, catalyzer phosphorus trichloride, further fast reaction speed.
2. with metal and metal oxide in present composition removal, degraded mineral, production process is simple to operation, can not need to wash with water mineral, has improved production efficiency, reduces production costs.
3. the present composition can be removed or degrade in mineral metal and metal oxide can reach 50-80%, improve the industrial value of raw ore, promote the comprehensive utilization of lean ore, complicated ore, optimize allocation of resources, and realize that the optimum of Mineral resources is exhausted.
4. adopt the present invention to remove the method for metal and metal oxide, after processing, reaction product is the metallic salts such as soluble hydrochloride, acetate, easily removes; The present composition is used by activated carbon treatment, depending on concentration, adds hydrochloric acid, acetic acid or phosphorus trichloride, can be recycled, to the environment non-secondary pollution.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, but do not limit the scope of the invention and range of application:
Embodiment 1
A kind of using method of removing the composition of metal and metal oxide in the sandstone mineral comprises following operation steps:
1. take raw material by following weight: the phosphorus trichloride 20kg that the acetic acid 150kg that the hydrochloric acid 120kg that weight percent is 20%, weight percent are 35%, weight percent are 15%, mix, obtain mixture A;
2. mixture A is mixed by weight 1:200 with water, stir, obtain mixture B;
3. mineral are pulverized, crossed 16 orders and divide cribellum, obtain breeze;
4. breeze is heated to 90 ℃ of temperature under thermostatted, the breeze agitator tank upper strata of packing into, by breeze with mixture B by mixing by weight 1:4, stir 3 minutes, put into the agitator tank middle level that screen cloth is arranged at bottom, filter, the solution of filtering is put agitator tank lower floor, and breeze dries, and gets final product.
Adopt aforesaid method, the content of sandstone iron in minerals, aluminium, sodium and magnesium metallic element, by 8000ppm, 5000ppm, 3300ppm, 5400ppm, drops to respectively 1500ppm, 1000ppm, 820ppm, 1100ppm, reaches the raw-material specification of quality of mineral.
Embodiment 2
A kind of using method of removing the composition of metal and metal oxide in the rhombspar mineral comprises following operation steps:
1. take raw material by following weight: the acetic acid 80kg that the hydrochloric acid 80kg that weight percent is 10%, weight percent are 25%, mix, obtain mixture A;
2. mixture A is mixed by weight 1:50 with water, stir, obtain mixture B;
3. mineral are pulverized, crossed 8 orders and divide cribellum, obtain breeze;
4. breeze is heated to temperature 70 C under thermostatted, the breeze agitator tank upper strata of packing into, by breeze with mixture B by mixing by weight 1:2, stir 1 minute, put into the agitator tank middle level that screen cloth is arranged at bottom, filter, the solution of filtering is put agitator tank lower floor, and breeze dries, and gets final product.
Adopt aforesaid method, in the rhombspar mineral, the content of iron, aluminium, sodium metallic element, by 600ppm, 800ppm, 1000ppm, drops to respectively 320ppm, 200ppm, 180ppm, reaches the raw-material specification of quality of mineral.
Embodiment 3
A kind of using method of removing the composition of metal and metal oxide in the Wingdale mineral comprises following operation steps:
1. take raw material by following weight: the phosphorus trichloride 12kg that the acetic acid 120kg that the hydrochloric acid 100kg that weight percent is 15%, weight percent are 30%, weight percent are 8%, mix, obtain mixture A;
2. mixture A is mixed by weight 1:100 with water, stir, obtain mixture B;
3. mineral are pulverized, crossed 10 orders and divide cribellum, obtain breeze;
4. breeze is heated to 80 ℃ of temperature under thermostatted, the breeze agitator tank upper strata of packing into, by breeze with mixture B by mixing by weight 1:3, stir 2 minutes, put into the agitator tank middle level that screen cloth is arranged at bottom, filter, the solution of filtering is put agitator tank lower floor, and breeze dries, and gets final product.
Adopt aforesaid method, in the Wingdale mineral, the content of iron, magnesium metallic element, by 250ppm, 100ppm, drops to respectively 45ppm, 25ppm, reaches the raw-material specification of quality of mineral.
Embodiment 4
A kind of using method of removing the composition of metal and metal oxide in kaolin mineral comprises following operation steps:
1. take raw material by following weight: the phosphorus trichloride 3kg that the acetic acid 100kg that the hydrochloric acid 90kg that weight percent is 15%, weight percent are 28%, weight percent are 5%, mix, obtain mixture A;
2. mixture A is mixed by weight 1:80 with water, stir, obtain mixture B;
3. mineral are pulverized, crossed 10 orders and divide cribellum, obtain breeze;
4. breeze is heated to 75 ℃ of temperature under thermostatted, the breeze agitator tank upper strata of packing into, by breeze with mixture B by mixing by weight 1:2-4, stir 2 minutes, put into the agitator tank middle level that screen cloth is arranged at bottom, filter, the solution of filtering is put agitator tank lower floor, and breeze dries, and gets final product.
Adopt aforesaid method, in kaolin mineral, the content of iron, chromium metallic element, by 5500ppm, 400ppm, drops to respectively 1600ppm, 210ppm, reaches the raw-material specification of quality of mineral.
Embodiment 5
A kind of using method of removing the composition of metal and metal oxide in silica sand, spectra comprises following operation steps:
1. take raw material by following weight: the phosphorus trichloride 16kg that the acetic acid 120kg that the hydrochloric acid 90kg that weight percent is 18%, weight percent are 32%, weight percent are 12%, mix, obtain mixture A;
2. mixture A is mixed by weight 1:80 with water, stir, obtain mixture B;
3. mineral silica sand, feldspar are mixed by weight 1:1, pulverize, cross 10 orders and divide cribellum, obtain breeze;
4. breeze is heated to temperature 70-90 ℃ under thermostatted, the breeze agitator tank upper strata of packing into, by breeze with mixture B by mixing by weight 1:2.5, stir 1 minute, put into the agitator tank middle level that screen cloth is arranged at bottom, filter, the solution of filtering is put agitator tank lower floor, and breeze dries, and gets final product.
Adopt aforesaid method, in silica sand, spectra the content of iron, nickel, magnesium metallic element by 950ppm, 340ppm, 550ppm, drop to respectively 440ppm, 180ppm, 210ppm,, reach the raw-material specification of quality of mineral.
Claims (10)
1. a composition of removing metal and metal oxide, is characterized in that, contains hydrochloric acid and acetic acid.
2. remove according to claim 1 the composition of metal and metal oxide, it is characterized in that, described hydrochloric acid is weight percentage as the hydrochloric acid of 10-20%, and described acetic acid is weight percentage as the acetic acid of 25-35%.
3. according to the composition of the described removal metal of claim 1 or 2 and metal oxide, it is characterized in that, also contain the phosphorus trichloride that weight percent is 5-15%.
4. remove according to claim 3 the composition of metal and metal oxide, it is characterized in that the raw material that contains following weight part: hydrochloric acid 80-120 part that weight percent is 10-20%, acetic acid 80-150 part that weight percent is 25-35%, phosphorus trichloride 0-20 part that weight percent is 5-15%.
5. remove according to claim 4 the composition of metal and metal oxide, it is characterized in that the raw material that contains following weight part: 12 parts of the phosphorus trichlorides that 120 parts of the acetic acid that 100 parts of the hydrochloric acid that weight percent is 15%, weight percent are 30%, weight percent are 8%.
6. according to the application of arbitrary described removal metal and metal oxide composition in claim 1 to 5, it is characterized in that, described composition is for removing metal or the metal oxide of mineral.
7. remove according to claim 6 the composition of metal and metal oxide, it is characterized in that, described mineral are one or more combinations in sandstone, silica sand, Wingdale, calcite, rhombspar, chalk, magnesite, feldspar and kaolin.
8. remove according to claim 6 the composition of metal and metal oxide, it is characterized in that, described mineral are Wingdale.
9. remove according to claim 6 the composition of metal and metal oxide, it is characterized in that, described metal is one or more combinations in iron, aluminium, chromium and magnesium, one or more combinations in described metal oxide iron protoxide, ferric oxide, Z 250, aluminum oxide, chromic oxide and magnesium oxide.
10. the using method as the composition of removal metal as described in arbitrary in claim 1 to 4 and metal oxide, is characterized in that, comprises following operation steps:
(1) take raw material by following weight part: 10-20% hydrochloric acid 80-120 part, 25-35% acetic acid 80-150 part, 5-15% phosphorus trichloride 0-20 part, mix, obtain mixture A;
(2) mixture A is mixed by weight 1:50-200 with water, stir, obtain mixture B;
(3) mineral are pulverized, crossed the 8-16 order and divide cribellum, obtain breeze;
(4) breeze is heated to temperature 70-90 ℃ under thermostatted, the breeze agitator tank upper strata of packing into, by breeze with mixture B by mixing by weight 1:2-4, stir 1-3 minute, put into the agitator tank middle level that screen cloth is arranged at bottom, filter, the solution of filtering is put agitator tank lower floor, and breeze dries, and gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351125.4A CN103435259B (en) | 2013-08-13 | A kind of remove metal and the compositions of metal-oxide and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351125.4A CN103435259B (en) | 2013-08-13 | A kind of remove metal and the compositions of metal-oxide and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103435259A true CN103435259A (en) | 2013-12-11 |
| CN103435259B CN103435259B (en) | 2016-11-30 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638956A (en) * | 2017-09-30 | 2018-01-30 | 江苏闽江矿业有限公司 | A kind of method that dual liquid flotation method removes iron in silica sand |
| CN115321972A (en) * | 2022-08-09 | 2022-11-11 | 矿冶科技集团有限公司 | Chromium removal method of bonded permanent magnetic ferrite and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5198190A (en) * | 1990-12-21 | 1993-03-30 | Enviroscience, Inc. | Method of recycling hazardous waste |
| US20040259718A1 (en) * | 2003-01-08 | 2004-12-23 | Aluminium-Salzschlacke Aufbereitungs Gmbh | Raw material with a high content of aluminum oxide, and method of manufacturing the raw material |
| CN102786220A (en) * | 2012-08-07 | 2012-11-21 | 宋朋泽 | Production method for ultrafine continuous basalt fibers |
| CN102887516A (en) * | 2012-10-26 | 2013-01-23 | 蔡雅纯 | Production method of high-purity quartz sand |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5198190A (en) * | 1990-12-21 | 1993-03-30 | Enviroscience, Inc. | Method of recycling hazardous waste |
| US20040259718A1 (en) * | 2003-01-08 | 2004-12-23 | Aluminium-Salzschlacke Aufbereitungs Gmbh | Raw material with a high content of aluminum oxide, and method of manufacturing the raw material |
| CN102786220A (en) * | 2012-08-07 | 2012-11-21 | 宋朋泽 | Production method for ultrafine continuous basalt fibers |
| CN102887516A (en) * | 2012-10-26 | 2013-01-23 | 蔡雅纯 | Production method of high-purity quartz sand |
Non-Patent Citations (1)
| Title |
|---|
| 雷清普,郑典模: "高纯二氧化硅的制备与应用", 《江西科学》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638956A (en) * | 2017-09-30 | 2018-01-30 | 江苏闽江矿业有限公司 | A kind of method that dual liquid flotation method removes iron in silica sand |
| CN115321972A (en) * | 2022-08-09 | 2022-11-11 | 矿冶科技集团有限公司 | Chromium removal method of bonded permanent magnetic ferrite and application thereof |
| CN115321972B (en) * | 2022-08-09 | 2023-10-24 | 矿冶科技集团有限公司 | Chromium removal method and application of bonded permanent magnetic ferrite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105772486B (en) | A kind of method of cyanide in removal aluminum cell waste cathode carbon | |
| CN108238832B (en) | Method for preparing soluble potassium and calcium silicate soil conditioner by alkali-activated potassium feldspar | |
| CN102285674B (en) | Method for comprehensively utilizing low-grade magnesite | |
| CN104556097A (en) | Method for preparing hydrotalcite-like compounds and zeolites by using blast furnace slag | |
| CN101607834A (en) | Utilize potassium-bearing mineral, phosphogypsum and high sulphur coal to prepare the method for potash fertilizer and co-producing sulfuric acid | |
| CN113651342A (en) | Method for producing lithium product by processing lepidolite through nitric acid atmospheric pressure method | |
| CN101857258B (en) | Method for preparing light calcium carbonate and magnesium hydroxide from magnesium tailings | |
| CN113636565B (en) | Method for preparing industrial vermiculite by phlogopite at normal pressure and industrial vermiculite | |
| CN109504857B (en) | Method for extracting soluble potassium ions from biotite by magnesium ion exchange method | |
| CN103435081B (en) | Method for producing low-iron limestone | |
| CN102275947A (en) | Method for preparing potassium fluoborate by using mixed acid containing hydrogen fluoride | |
| CN103232052B (en) | Method for preparing high-purity calcium carbonate directly from phosphogypsum | |
| CN111115673A (en) | Method for utilizing all components of caustic sludge | |
| CN106629806A (en) | Method for producing dihydrate gypsum from waste liquid in laterite nickel ore wet process | |
| CN111484081B (en) | Method for preparing manganese carbonate, ammonium sulfate and dry powder building coating by using electrolytic manganese leaching residues | |
| CN102899487A (en) | Process for leaching vanadium out of stone coal by using oxidant and sulfuric acid | |
| CN111039299B (en) | Method for efficiently recycling lead-zinc tailings | |
| CN105002521A (en) | Method for removing magnesium impurities in electrolytic manganese system through fluorine-bearing minerals | |
| CN107324409A (en) | A kind of method for preparing platinum nitrate solution | |
| CN103435259A (en) | Composition for removing metal and metal oxide and application of thereof | |
| CN103952534B (en) | A kind of method utilizing nickel-molybdenum ore to prepare Sodium orthomolybdate | |
| CN103014332B (en) | Pretreatment method for extracting molybdenum from molybdenum ore | |
| CN103435259B (en) | A kind of remove metal and the compositions of metal-oxide and application thereof | |
| CN103754901A (en) | Method for producing magnesium hydroxide from mixed solution containing magnesium chloride and calcium chloride by lime seeding method | |
| CN103818914B (en) | Method for preparing sodium alumino silicate through decomposing feldspar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20210813 |