CN102671753B - Dosing and size mixing method for ore dressing of high-carbonate and low-grade phosphorite - Google Patents
Dosing and size mixing method for ore dressing of high-carbonate and low-grade phosphorite Download PDFInfo
- Publication number
- CN102671753B CN102671753B CN201110384685.0A CN201110384685A CN102671753B CN 102671753 B CN102671753 B CN 102671753B CN 201110384685 A CN201110384685 A CN 201110384685A CN 102671753 B CN102671753 B CN 102671753B
- Authority
- CN
- China
- Prior art keywords
- ore
- ore pulp
- tank diameter
- carbonate
- pulp
- 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.)
- Active
Links
Images
Abstract
The invention relates to a dosing and size mixing method for the ore dressing of high-carbonate and low-grade phosphorite, in particular to a method for adding an agent in the ore dressing process of removing carbonate from the high-carbonate and low-grade phosphorite. The method comprises the following steps of: adding a phosphoric acid or phosphate inhibitor; adding a sulfuric acid regulator; and adding a collecting agent at the position which forms an angle of between 90 and 180 degrees with an inlet of ore pulp and the position 10 to 20 centimeters higher than an ore feed port in the rotating direction of the ore pulp in a stirring barrel while adding sulfuric acid into the stirring barrel. By the dosing and size mixing method, carbonate minerals in the phosphorite can be removed effectively; calcium and magnesium ions generated by reacting the carbonate and the sulfuric acid can be combined with fatty acid ions quickly, so that the generation of indissolvable calcium sulfate and magnesium sulfate is prevented effectively; and even if crystalline solids of the calcium sulfate and the magnesium sulfate are generated, the crystalline solids react with fatty acid due to more active points on the surfaces to prevent the crystalline solids of the calcium sulfate and the magnesium sulfate from depositing on the walls of equipment or pipelines, so that the condition of blockage of the ore dressing equipment and the pipelines due to the deposition of the crystalline solids of the calcium sulfate and the magnesium sulfate is relieved.
Description
Technical field
The present invention relates to the beneficiation method that a kind of carbonate type phosphate rock reverse flotation removes carbonate, particularly relate to the low-grade phosphorite of high-carbon hydrochlorate type and deviate from the adding method of a kind of medicament in the ore dressing process of carbonate.
Technical background
Carbonate type phosphate rock mainly adopts single reverse flotation to remove carbonate impurity, and ore dressing is sized mixing and conventionally adopted sulfuric acid as pH adjusting agent in process, and phosphoric acid or phosphate are as phosphorus mineral inhibitor, and fatty acid soaps is as the collecting agent of carbonate mineral.At present, the adding method of three kinds of medicaments is: first add sulfuric acid, fully after effect, add phosphoric acid or phosphate inhibitor, finally add collecting agent.This adding method thereof of sizing mixing easily produces ore dressing adverse effect, particularly high-carbon hydrochlorate phosphorite ore dressing, and its influence factor is as follows:
1) carbonate mineral and sulfuric acid reaction, newly-generated calcium sulfate magnesium addition easily covers phosphorus mineral surfaces, affects the effect of inhibitor;
2) the material granularity that carbonate mineral reaction generates is thinner, easily mutually wraps up, and is not easy to disperse, and is unfavorable for the effect of collecting agent;
3) after carbonate and sulfuric acid reaction, newly-generated Insoluble calcium sulfate magnesium has sufficient time crystallization deposition on appts wall and duct wall, easily causes after long-time line clogging, device processes ability low.
Summary of the invention
The object of the invention is to, provide a kind of new carbonate type phosphate rock reverse flotation to remove the method that carbonate impurity process Chinese medicine adds.Adopt and first add phosphoric acid or phosphate inhibitor; Then add sulfuric acid adjusting agent; The direction that ore pulp rotates in agitator when sulfuric acid adds agitator, with the place at ore pulp entrance-180 ° of angles in 90 °, the place that exceeds feed port 10cm-20cm adds collecting agent.New adding method thereof can change the mechanism of various medicaments and ore, effectively removes carbonate impurity, can also overcome the adverse effect of traditional dosing method to ore dressing.
Technical scheme of the present invention is:
1) ore pulp is introduced to first and sized mixing in tank diameter, add phosphoric acid or phosphate in porch along agitator wall, first phosphoric acid or phosphate inhibitor can act on ore, effectively suppress phosphorus ore thing;
2) flow into second tank diameter bottom through the ore pulp of step 1) from the tank diameter bottom of sizing mixing, add the concentrated sulfuric acid in its ore pulp porch, bottom, regulate slurry pH 3 ~ 4, the concentrated sulfuric acid and ore effect, further dissociate carbonate mineral, and produce new surface-active point;
3) direction that ore pulp rotates in second tank diameter, with ore pulp entrance-180 ° of angles in 90 °, exceed feed port 10cm-20cm place and add fatty acid soaps class collecting agent by tank diameter cell wall, through step 2) ore pulp under stirring action, rise and react with collecting agent, by sulfolysis from carbonate mineral be combined with collecting agent, form fatty acid calcium and the fatty acid magnesium salt of indissoluble, and the absorption on the new surface-active point in the carbonate mineral surface dissociateing of aliphatic acid ion.
Compared with prior art, for the low-grade phosphorite ore dressing of high-carbon hydrochlorate type, this technology can effectively remove the carbonate mineral in phosphorite; Calcium that carbonate and sulfuric acid reaction produce, magnesium ion can be rapidly and aliphatic acid ions binding, effectively prevented the generation of Insoluble calcium sulfate, magnesium sulfate; Even if having calcium sulfate, magnesium sulfate crystalline solid to generate, also can increase more surface-active point newly and easier and aliphatic acid effect compared to prior art because its surface-active point, prevent that calcium sulfate, magnesium sulfate crystallization deposition are to appts wall or duct wall, alleviate the situation that preparation equipment and pipeline stop up because of calcium sulfate magnesium crystallization deposition.
Accompanying drawing explanation
Fig. 1 is slip flow direction schematic diagram.
Fig. 2 is Fig. 1 E-E view.
In figure, A is first agitator ore pulp entrance; B is first agitator ore pulp outlet; C is second agitator ore pulp entrance; D is second agitator ore pulp outlet; 1-phosphoric acid or phosphate add a little; 2-sulfuric acid adds a little; 3-fatty acid soaps class collecting agent entrance.
The specific embodiment
Embodiment 1
Raw ore is appositional pattern phosphorite, P
2o
5content 14.65%, MgO content 11.82%.As shown in Figure 1, slip flows along the direction of A-B-C-D.Ore pulp directly enters flotation device machine from D and carries out flotation.
1) through broken, ore grinding, raw ore is ground to fineness for-0.075mm >=98%, phosphorus ore thing and carbonate mineral are dissociated mutually, the control concentration of sizing mixing is 27～33%;
2) ore pulp is introduced to first and sized mixing in tank diameter, in tank diameter, to add concentration be 35% industrial phosphoric acid in porch, and addition is added according to 2.0-2.5kg/t raw ore; First phosphoric acid can act on ore, effectively suppresses phosphorus ore thing;
3) flow into second tank diameter from bottom through the ore pulp of " 2) ", add 95% the industrial concentrated sulfuric acid in its ore pulp porch, bottom, addition is added according to 16.0kg/t raw ore, regulate pH values of pulp 3 ~ 4, sulfuric acid and ore effect, further dissociate carbonate mineral, and produce new surface-active point;
4) direction of rotating at second tank diameter ore pulp, become an angle of 90 degrees with ore pulp entrance, the place that exceeds ore pulp inlet tube 10cm adds fatty acid soaps class collecting agent by wall, addition is added according to 2.5kg/t raw ore, ore pulp through " 3) " rises and reacts with collecting agent under stirring action, by sulfolysis from carbonate mineral and the rapid combination of collecting agent, form fatty acid calcium and the fatty acid magnesium salt of indissoluble, and aliphatic acid ion adsorbs on the new active site of the carbonic acid mineral surfaces dissociateing;
5) through the process of sizing mixing of " 4) ", ore pulp enters flotation cell and separates sorting, and floatation process adopts anti-floating one roughing primary cleaning flow process, and flotation froth is mine tailing, and in groove, product is phosphorus concentrate.Roughly select before concentrate enters selected operation, between its flotation cell, in case, add sulfuric acid 2.0kg/t raw ore and enol class foaming agent 0.2kg/t raw ore.
The phosphorus concentrate index obtaining: productive rate 32.65%, P
2o
5content 30.59%, MgO content 0.85%, P
2o
5the rate of recovery 68.66%, MgO removal efficiency 97.49%.
Raw ore is appositional pattern phosphorite, P
2o
5content 23.45%, MgO content 5.23%.
1) through broken, ore grinding, raw ore is ground to fineness for-0.075mm >=94%, phosphorus ore thing and carbonate mineral are dissociated mutually, the control concentration of sizing mixing is 27～33%;
2) ore pulp is introduced to first and sized mixing in tank diameter, in tank diameter, to add concentration be 35% industrial phosphoric acid in porch, and addition is added according to 2.5kg/t raw ore; First phosphoric acid can act on ore, effectively suppresses phosphorus ore thing;
3) flow into second tank diameter from bottom through the ore pulp of " 2) ", add 95% the industrial concentrated sulfuric acid in its ore pulp porch, bottom, addition is added according to 12.0kg/t raw ore, regulate pH values of pulp 3 ~ 4, sulfuric acid and ore effect, further dissociate carbonate mineral, and produce new surface-active point;
4) direction of rotating at second tank diameter ore pulp, be 180 ° of angles with ore pulp entrance, the place that exceeds ore pulp inlet tube 20cm adds fatty acid soaps class collecting agent by wall, addition is added according to 2.25kg/t raw ore, ore pulp through " 3) " rises and reacts with collecting agent under stirring action, by sulfolysis from carbonate mineral and the rapid combination of collecting agent, form fatty acid calcium and the fatty acid magnesium salt of indissoluble, and aliphatic acid ion adsorbs on the new active site of the carbonic acid mineral surfaces dissociateing;
5) through the process of sizing mixing of " 4) ", ore pulp enters flotation cell and separates sorting, and floatation process adopts anti-floating one roughing primary cleaning flow process, and flotation froth is mine tailing, and in groove, product is phosphorus concentrate.Roughly select before concentrate enters selected operation, between its flotation cell, in case, add and roughly select the same fatty acid soaps class collecting agent 0.5kg/t raw ore.
The phosphorus concentrate index obtaining: productive rate 63.77%, P
2o
5content 30.67%, MgO content 0.69%, P
2o
5the rate of recovery 82.39%, MgO removal efficiency 91.06%.
Embodiment 3
Raw ore is appositional pattern phosphorite, P
2o
5content 20.01%, MgO content 7.26%.
1) through broken, ore grinding, raw ore is ground to fineness for-0.075mm >=98%, phosphorus ore thing and carbonate mineral are dissociated mutually, the control concentration of sizing mixing is 27～33%;
2) ore pulp is introduced to first and sized mixing in tank diameter, in tank diameter, to add concentration be 35% industrial phosphoric acid in porch, and addition is added according to 2.5kg/t raw ore; First phosphoric acid can act on ore, effectively suppresses phosphorus ore thing;
3) flow into second tank diameter from bottom through the ore pulp of " 2) ", add 95% the industrial concentrated sulfuric acid in its ore pulp porch, bottom, addition is added according to 14.0kg/t raw ore, regulate pH values of pulp 3 ~ 4, sulfuric acid and ore effect, further dissociate carbonate mineral, and produce new surface-active point;
4) direction of rotating at second tank diameter ore pulp, with ore pulp entrance at an angle of 90, the place that exceeds ore pulp inlet tube 10cm adds fatty acid soaps class collecting agent by wall, addition is added according to 2.5kg/t raw ore, ore pulp through " 3) " rises and reacts with collecting agent under stirring action, by sulfolysis from carbonate mineral and the rapid combination of collecting agent, form fatty acid calcium and the fatty acid magnesium salt of indissoluble, and aliphatic acid ion adsorbs on the new active site of the carbonic acid mineral surfaces dissociateing;
5) through the process of sizing mixing of " 4) ", ore pulp enters flotation cell and separates sorting, and floatation process adopts anti-floating one roughing primary cleaning flow process, and flotation froth is mine tailing, and in groove, product is phosphorus concentrate.Roughly select before concentrate enters selected operation, between its flotation cell, in case, add sulfuric acid 4.0kg/t raw ore and enol class foaming agent 0.4kg/t raw ore.
The phosphorus concentrate index obtaining: productive rate 56.73%, P
2o
5content 33.53%, MgO content 0.78%, P
2o
5the rate of recovery 84.34%, MgO removal efficiency 93.90%.
Embodiment 4
Raw ore is appositional pattern phosphorite, P
2o
5content 14.65-23.45%, MgO content 5.23-11.82%.
1) through broken, ore grinding, raw ore is ground to fineness for-0.075mm >=98%, phosphorus ore thing and carbonate mineral are dissociated mutually, the control concentration of sizing mixing is 27～33%;
2) ore pulp is introduced to first and sized mixing in tank diameter, in tank diameter, to add concentration be 35% industrial phosphoric acid in porch, and addition is added according to 2.0-2.5kg/t raw ore; First phosphoric acid can act on ore, effectively suppresses phosphorus ore thing;
3) flow into second tank diameter from bottom through the ore pulp of " 2) ", add 95% the industrial concentrated sulfuric acid in its ore pulp porch, bottom, addition is added according to 12-16.0kg/t raw ore, regulate pH values of pulp 3 ~ 4, sulfuric acid and ore effect, further dissociate carbonate mineral, and produce new surface-active point;
4) direction of rotating at second tank diameter ore pulp, become 90-180 degree angle with ore pulp entrance, the place that exceeds ore pulp inlet tube 10cm-20cm adds fatty acid soaps class collecting agent by wall, addition is added according to 2.25-2.5kg/t raw ore, ore pulp through step 3) rises and reacts with collecting agent under stirring action, by sulfolysis from carbonate mineral and the rapid combination of collecting agent, form fatty acid calcium and the fatty acid magnesium salt of indissoluble, and aliphatic acid ion adsorbs on the new active site of the carbonic acid mineral surfaces dissociateing;
5) through the process of sizing mixing of step 4), ore pulp enters flotation cell and separates sorting, and floatation process adopts anti-floating one roughing primary cleaning flow process, and flotation froth is mine tailing, and in groove, product is phosphorus concentrate.
Described in step 5), between flotation cell, in case, add sulfuric acid 2.0-4.0kg/t raw ore and enol class foaming agent 0.2-0.4kg/t raw ore.
Described in step 5), between flotation cell, in case, add and roughly select the same fatty acid soaps class collecting agent 0.5kg/t raw ore.
Claims (4)
1. the low-grade phosphorite ore dressing of a high-carbon hydrochlorate dosing mixing method, raw ore is appositional pattern phosphorite, P
2o
5content 14.65-23.45%, MgO content 5.23-11.82%, is characterized in that, the steps include:
1) ore pulp is introduced to first and sized mixing in tank diameter, add phosphoric acid or phosphate in porch along agitator wall, phosphoric acid or phosphate, as inhibitor and ore effect, suppress phosphorus ore thing;
2) flow into second tank diameter bottom through the ore pulp of step 1) from the tank diameter bottom of sizing mixing, add the concentrated sulfuric acid in its ore pulp porch, bottom, regulate slurry pH 3 ~ 4, the concentrated sulfuric acid and ore effect, further dissociate carbonate mineral, and produce new surface-active point;
3) direction that ore pulp rotates in second tank diameter, become 90-180 degree angle with ore pulp entrance, exceed feed port 10cm-20cm place and add fatty acid soaps class collecting agent by tank diameter cell wall, through step 2) ore pulp under stirring action, rise and react with collecting agent, by sulfolysis from carbonate mineral be combined with collecting agent, form fatty acid calcium and the fatty acid magnesium salt of indissoluble, and the absorption on the new surface-active point in the carbonate mineral surface dissociateing of aliphatic acid ion.
2. the low-grade phosphorite ore dressing of a kind of high-carbon hydrochlorate according to claim 1 dosing mixing method, it is characterized in that, 1) through broken, ore grinding, raw ore is ground to fineness is-0.075mm >=98%, phosphorus ore thing and carbonate mineral are dissociated mutually, and controlling the concentration of sizing mixing is 27～33%, ore pulp is introduced to first and size mixing in tank diameter, in tank diameter, to add concentration be 35% industrial phosphoric acid in porch, and addition is added according to 2.0-2.5kg/t raw ore; Phosphoric acid and ore effect, suppress phosphorus ore thing;
2) flow into second tank diameter bottom through the ore pulp of step 1) from the tank diameter bottom of sizing mixing, add 95% the industrial concentrated sulfuric acid in its ore pulp porch, bottom, addition is added according to 12-16.0kg/t raw ore, regulate pH values of pulp 3 ~ 4, the concentrated sulfuric acid and ore effect, further dissociate carbonate mineral, and produce new surface-active point;
3) direction of rotating at second tank diameter ore pulp, become 90-180 degree angle with ore pulp entrance, the place that exceeds ore pulp inlet tube 10cm-20cm adds fatty acid soaps class collecting agent by wall, addition is added according to 2.25-2.5kg/t raw ore, through step 2) ore pulp under stirring action, rise and react with collecting agent, by sulfolysis from carbonate mineral and the rapid combination of collecting agent, form fatty acid calcium and the fatty acid magnesium salt of indissoluble, and aliphatic acid ion adsorbs on the new active site of the carbonic acid mineral surfaces dissociateing;
4) through the process of sizing mixing of step 3), ore pulp enters flotation cell and separates sorting, and floatation process adopts anti-floating one roughing primary cleaning flow process, and flotation froth is mine tailing, and in groove, product is phosphorus concentrate.
3. the low-grade phosphorite ore dressing of a kind of high-carbon hydrochlorate according to claim 2 dosing mixing method, is characterized in that, adds sulfuric acid 2.0-4.0kg/t raw ore and enol class foaming agent 0.2-0.4kg/t raw ore described in step 4) between flotation cell in case.
4. the low-grade phosphorite ore dressing of a kind of high-carbon hydrochlorate according to claim 2 dosing mixing method, is characterized in that, adds fatty acid soaps class collecting agent 0.5kg/t raw ore described in step 4) between flotation cell in case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110384685.0A CN102671753B (en) | 2011-11-28 | 2011-11-28 | Dosing and size mixing method for ore dressing of high-carbonate and low-grade phosphorite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110384685.0A CN102671753B (en) | 2011-11-28 | 2011-11-28 | Dosing and size mixing method for ore dressing of high-carbonate and low-grade phosphorite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102671753A CN102671753A (en) | 2012-09-19 |
| CN102671753B true CN102671753B (en) | 2014-06-25 |
Family
ID=46804689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110384685.0A Active CN102671753B (en) | 2011-11-28 | 2011-11-28 | Dosing and size mixing method for ore dressing of high-carbonate and low-grade phosphorite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102671753B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759339A (en) * | 2015-04-07 | 2015-07-08 | 广西北流市智宇陶瓷自动化设备有限公司 | Device for adding oxidation corrosion medicine in ore pulp agitating treatment |
| CN107055494A (en) * | 2017-04-13 | 2017-08-18 | 云南胜威化工有限公司 | The method that a kind of spent acid in utilization sulfuric acid method titanium pigment production technology selects phosphorus ore |
| CN108455543B (en) * | 2018-02-07 | 2021-06-04 | 四川绵竹市盘龙矿物质有限责任公司 | Defoaming and feeding method for wet-process phosphoric acid extraction reaction |
| CN109908825A (en) * | 2019-04-23 | 2019-06-21 | 陕西科技大学 | A kind of flowsheet of slurry agitation device and its stirring means |
| CN110293000A (en) * | 2019-06-21 | 2019-10-01 | 铜陵有色金属集团股份有限公司 | A kind of sulfur method and desulphurization system of iron ore concentrate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330984A (en) * | 2000-07-04 | 2002-01-16 | 武汉化工学院 | Process for increasing anti-floatation effeciency of phosphate |
| CN102179308A (en) * | 2010-12-17 | 2011-09-14 | 云南磷化集团有限公司 | Oredressing method for removing sesquioxide of iron and aluminum |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008093567A (en) * | 2006-10-12 | 2008-04-24 | Taiheiyo Cement Corp | Method for treating particulate containing calcium component and lead component and system for the same |
| EP2084168B1 (en) * | 2006-10-25 | 2012-06-27 | Rhodia, Inc. | Process for the preparation of highly purified, dialkydithiophosphinic compounds |
-
2011
- 2011-11-28 CN CN201110384685.0A patent/CN102671753B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330984A (en) * | 2000-07-04 | 2002-01-16 | 武汉化工学院 | Process for increasing anti-floatation effeciency of phosphate |
| CN102179308A (en) * | 2010-12-17 | 2011-09-14 | 云南磷化集团有限公司 | Oredressing method for removing sesquioxide of iron and aluminum |
Non-Patent Citations (7)
| Title |
|---|
| JP特开2008-93567A 2008.04.24 |
| 云南海口中低品位胶磷矿选矿工艺研究;罗惠华等;《武汉工程大学学报》;20080315;第30卷(第02期);第12-14页 * |
| 反浮选脉石矿物工艺在磷矿浮选中的应用;罗廉明等;《国外金属矿选矿》;20061125(第11期);第25-27页 * |
| 杨稳权等.浓硫酸添加点对磷矿石反浮选作业的影响.《武汉工程大学学报》.2011,第33卷(第03期),第79-80页,第86页. |
| 浓硫酸添加点对磷矿石反浮选作业的影响;杨稳权等;《武汉工程大学学报》;20110331;第33卷(第03期);第79-80页,第86页 * |
| 罗廉明等.反浮选脉石矿物工艺在磷矿浮选中的应用.《国外金属矿选矿》.2006,(第11期),第25-27页. |
| 罗惠华等.云南海口中低品位胶磷矿选矿工艺研究.《武汉工程大学学报》.2008,第30卷(第02期),第12-14页. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102671753A (en) | 2012-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102671753B (en) | Dosing and size mixing method for ore dressing of high-carbonate and low-grade phosphorite | |
| CN100522374C (en) | Mineral dressing method of mid-low grade collophane | |
| CN102443071B (en) | Composite modified starch as hematite reverse flotation inhibitor and preparation method thereof | |
| CN100392124C (en) | Method of retrieving magnesium from high magnesium phosphorus ore | |
| CN104801427B (en) | A kind of high magnesium low-grade phosphorus ore coarse grain direct reverse flotation technique | |
| CN104058428B (en) | KCl production system and method produced by a kind of novel carnallitite | |
| CN102179308B (en) | Oredressing method for removing sesquioxide of iron and aluminum | |
| CN104909841B (en) | A kind of technique of nitric acid decomposing medium and low grade ammonium phosphate calcium and magnesium and ammonium nitrate calcium and magnesium | |
| CN104801418B (en) | A kind of coarse grain reverse flotation de-magging method for phosphorus ore | |
| CN100542679C (en) | A kind of method of demagging from phosphate ore | |
| CN103691567B (en) | The flotation separation method of a kind of fluorite in acid condition and dolomite | |
| CN105197905B (en) | Extract the production method of phosphorus ore coproduction feed-level calcium biphosphate and technical grade phosphorus ammonium | |
| CN106423584B (en) | A kind of collophane direct reverse flotation technique that floatation process water recycles respectively | |
| CN103265055B (en) | System and processing of the preparation of potassium chloride in lare grains by cold decomposition crystallization of high sodium potassium salt ore and flotation method | |
| CN106345616A (en) | Flotation calcium-removing agent and method for magnesite | |
| CN104624379B (en) | A kind of positive and negative reverse flotation method of low-grade silicon calcium collophanite | |
| CN103691574B (en) | A kind of preparation method of dolomite inhibitor and application thereof | |
| CN104043535A (en) | Phosphorite obverse and reverse flotation method without sodium carbonate in whole process | |
| CN101580257A (en) | Method for preparing common active calcium carbonate series products and ammonium chloride by carbide slag | |
| CN105921259B (en) | The method for producing feed-level calcium biphosphate using middle-low grade mixing rock phosphate in powder | |
| CN101580258A (en) | Method for preparing nano active calcium carbonate series products and ammonium chloride by carbide slag | |
| CN107159468A (en) | A kind of low grade collophanite reverse floatation process | |
| CN105013617A (en) | Collophanite dressing technology | |
| CN104624381A (en) | Flotation separation method for dolomite and quartz | |
| CN106334626A (en) | Preparation method for novel collophanite reverse flotation collector for decarbonated salt minerals |
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 |