CN102583450B - Removing method of high undissolved substances and low-grade solid potassium ore undissolved substances - Google Patents
Removing method of high undissolved substances and low-grade solid potassium ore undissolved substances Download PDFInfo
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- CN102583450B CN102583450B CN2012100451308A CN201210045130A CN102583450B CN 102583450 B CN102583450 B CN 102583450B CN 2012100451308 A CN2012100451308 A CN 2012100451308A CN 201210045130 A CN201210045130 A CN 201210045130A CN 102583450 B CN102583450 B CN 102583450B
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- undissolved substances
- potassium
- scouring
- insoluble matter
- slip
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000007787 solid Substances 0.000 title claims abstract description 29
- 239000011591 potassium Substances 0.000 title claims abstract description 18
- 229910052700 potassium Inorganic materials 0.000 title claims abstract description 18
- 239000000126 substance Substances 0.000 title abstract 10
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 15
- 150000002367 halogens Chemical class 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims abstract description 10
- 238000011177 media preparation Methods 0.000 claims abstract description 8
- 238000009991 scouring Methods 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 16
- 238000001556 precipitation Methods 0.000 claims description 14
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 238000004513 sizing Methods 0.000 claims description 7
- 238000005352 clarification Methods 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000012047 saturated solution Substances 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000013505 freshwater Substances 0.000 claims description 4
- 241001131796 Botaurus stellaris Species 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract description 41
- 239000001103 potassium chloride Substances 0.000 abstract description 23
- 235000011164 potassium chloride Nutrition 0.000 abstract description 23
- 238000012545 processing Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 2
- 238000005201 scrubbing Methods 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000003337 fertilizer Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention belongs to the technical field of potassium extraction in a salt lake, and in particular relates to a removing method of high undissolved substances and low-grade solid potassium ore undissolved substances. The method consists of scrubbing medium preparation, scrubbing, size mixing, hydraulic cyclone, screening and precipitate halogen spraying. Through the technology processing, the removal rates of the high undissolved substances and the low-grade solid potassium ore undissolved substances are larger than or equal to 70%, the grade of raw ore potassium chloride is improved by 70-100%, and the requirement that floatation method is adopted to prepare the potassium chloride raw material is met. By using the method, the removal problems of the high undissolved substances (more than or equal to 20%) and the low-grade solid potassium ore (3-10% of KCl) undissolved substances are solved, so that the high undissolved substances and the low-grade solid potassium ore which can not be directly processed are subjected to undissolved substance removal and then prepared into the raw material of potassium chloride, the development utilization degree of potassium resources in a potassium salt mine is improved, processing utilization resource amount is enlarged, the processing utilization rate of mine resources is effectively improved, the service life of the mine is prolonged, and the economic value of the mine is improved.
Description
Affiliated technical field
The invention belongs to salt lake and put forward the potassium technical field, particularly the removal methods of a kind of high insoluble matter, low-grade solid kalium mine insoluble matter.
Background technology
Solid kalium mine is one of primary raw material of producing by potassium chloride fertilizer, and the solid kalium mine of take is produced potassium chloride as raw material and mainly contained two kinds of methods: the one, and by the solid kalium mine thermosol, heat filters impurity wherein, and the hot filtrate crystallisation by cooling, obtain Potassium Chloride Product; Another kind is floatation, be about to solid kalium mine broken, size mixing, flotation, the refining potassium chloride fertilizer that obtains.These two kinds of methods all there are certain requirements the content of insoluble matter in Raw Ore: solid kalium mine thermosol cold crystallization method preparing potassium chloride to the requirement of insoluble matter impurity content in Raw Ore general≤5%, floatation generally also wants≤5% to the requirement of insolubles content in Raw Ore.But adopt floatation to produce agricultural certified products potash fertilizer, the requirement of insoluble matter in Raw Ore generally all can at 10-20%.Potassium resource is the narrow resources of China, and potash fertilizer is the goods and materials in short supply of guaranteeing agricultural production security, for efficient, deep development potassium resource, improves potassium ore resources utilization rate, and the evaluation and exploration technology of studying high insoluble matter, low-grade earth's surface solid kalium mine is extremely urgent.High insoluble matter, low-grade solid kalium mine, the average content of water-insoluble is generally at 50%(30-60%), the KCl average grade is about 5-8%, if not carrying out the early stage of processing and utilization, this part resource do not process, existing processing technology can't develop and utilize, but this part resource has very large exploitation potential value.At present to this part resource to utilize method to exist insoluble matter to carry secretly mother liquor comparatively serious, the potassium loss is larger, is difficult for realizing separating of mineral and insoluble matter, deficiency in economic performance, be difficult to large-scale develop and utilize this part resource.
Summary of the invention
The specific area in high insoluble matter ore deposit is larger, is generally 350～370 m
2/ g, when flotation sylvite, the active collecting agent of their a large amount of Liquidity limits, suppress the sylvite emersion.When pharmaceutical quantities increases, with a large amount of emersions of sylvite, have a strong impact on the quality of sylvite product.Production practices show: when insolubles content in Raw Ore >=20%, KCl grade≤10%, do not remove processing if Raw Ore is not carried out to insoluble matter, according to current process technology, processing and utilization just need not be carried out in this ore deposit.For current high insoluble matter, low-grade solid kalium mine develops difficult problem, the present invention proposes a kind of high insoluble matter, the removal methods of low-grade solid kalium mine insoluble matter, the technical scheme that the present invention intends taking is: a kind of high insoluble matter, the removal methods of low-grade solid kalium mine insoluble matter, it is characterized in that it is prepared by scouring media, clean, size mixing, hydraulic cyclone, screening, precipitation is drenched the halogen operation and is formed, wherein the process conditions of scouring media preparation process are: magnesium chloride saturated solution and light bittern or fresh water are with the ratio of weight ratio 1:0.05～0.10, at normal temperature, under normal pressure, carry out mixed preparing, the preparation time is 5-30Min, the process conditions of cleaning operation are: by solid kalium mine with prepare scouring media and mix, mixed slip weight percent concentration is 40～70%, mixed material 40～120 turning/rotating speed of Min carries out the action of forced stirring scouring, scouring time 20～90min, the process conditions of the operation of sizing mixing are: the slip that scouring completes is regulated to slip weight percent concentration to 20～50% with the scouring media prepared, the process conditions of hydraulic cyclone operation are: the slip after sizing mixing carries out the rotational flow separation of insoluble matter in cyclone, and cyclone charging aperture pressure is controlled at 0.10～0.20Mpa, the process conditions of screening operation are: cyclone underflow slip is regulated to slip weight percent concentration to 20～50% with the scouring media prepared, then pump into Multilayer vibrating screen and sieve separation, on-the-sieve material removes to carry potassium, and undersize material enters precipitation and drenches the halogen operation, the process conditions that precipitation is drenched the halogen operation are: cyclone overflow, Multilayer vibrating screen screenings are entered to the clarification of depositing reservoir natural subsidence, and clear liquid enters the scouring media preparation process and recycles, and it is 4～24h that precipitation is drenched the halogen time, and sediment is insoluble matter etc.
By PROCESS FOR TREATMENT of the present invention, the insoluble matter removal efficiency of high insoluble matter, low-grade solid kalium mine >=70%, the grade of raw ore potassium chloride improves 70～100%, reaches the ingredient requirement of floatation processing preparing potassium chloride.The insoluble matter that the invention solves high insoluble matter (>=20%), low-grade solid kalium mine (KCl 3～10%) removes problem, make directly high insoluble matter, the low-grade solid kalium mine of processing and utilization after insoluble matter removes, become the raw material of processing preparing potassium chloride, improve sylvite mine potassium resource and develop degree, but enlarge the processing and utilization stock number, effectively improved the processing and utilization rate of mine resources, extend the length of service in mine, improved the economic worth in mine.
The accompanying drawing explanation
Fig. 1 is process chart of the present invention
The specific embodiment
Embodiment 1: get 100 tons high insoluble matter solid kalium mines, its mass component is that potassium chloride 4.14 %, insoluble matter are 49.59%, sodium chloride etc. 46.27%; With magnesium chloride saturated solution and light bittern, with the ratio of weight ratio 1:0.05, mix 5Min under normal temperature, normal pressure, 150 tons of preparation scouring medias; By solid kalium mine with prepare scouring media and mix, mixed slip weight percent concentration is 40%, mixed material 40 turning/rotating speed of Min carries out the action of forced stirring scouring, cleans time 20min; The slip that scouring completes is regulated to slip weight percent concentration to 20% with the scouring media prepared; Slip after sizing mixing is carried out to the rotational flow separation of insoluble matter in cyclone, cyclone charging aperture pressure is controlled at 0.10Mpa; Cyclone underflow slip is regulated to slip weight percent concentration to 20% with the scouring media prepared, then pump into Multilayer vibrating screen and sieve separation, 44 tons of on-the-sieve materials remove to carry potassium, undersize material enters precipitation and drenches the halogen operation, cyclone overflow, Multilayer vibrating screen screenings are entered to the clarification of depositing reservoir natural subsidence, clear liquid enters the scouring media preparation process and recycles, and it is 4h that precipitation is drenched the halogen time, and sediment is insoluble matter etc.
Embodiment 2: get 100 tons high insoluble matter solid kalium mines, its mass component is that potassium chloride 3.51 %, insoluble matter are 60.12%, sodium chloride etc. 36.37%; With magnesium chloride saturated solution and fresh water, with the ratio of weight ratio 1:0.1, mix 5Min under normal temperature, normal pressure, 43 tons of preparation scouring medias; By solid kalium mine with prepare scouring media and mix, mixed slip weight percent concentration is 70%, mixed material 120 turning/rotating speed of Min carries out the action of forced stirring scouring, cleans time 90min; The slip that scouring completes is regulated to slip weight percent concentration to 50% with the scouring media prepared; Slip after sizing mixing is carried out to the rotational flow separation of insoluble matter in cyclone, cyclone charging aperture pressure is controlled at 0.20Mpa; Cyclone underflow slip is regulated to slip weight percent concentration to 50% with the scouring media prepared, then pump into Multilayer vibrating screen and sieve separation, 32 tons of on-the-sieve materials remove to carry potassium, undersize material enters precipitation and drenches the halogen operation, cyclone overflow, Multilayer vibrating screen screenings are entered to the clarification of depositing reservoir natural subsidence, clear liquid enters the scouring media preparation process and recycles, and it is 24h that precipitation is drenched the halogen time, and sediment is insoluble matter etc.
Embodiment 3: get 100 tons high insoluble matter solid kalium mines, its mass component is that potassium chloride 6.5 %, insoluble matter are 40.3%, sodium chloride etc. 53.2%; With magnesium chloride saturated solution and fresh water, with the ratio of weight ratio 1:0.08, mix 5Min under normal temperature, normal pressure, 100 tons of preparation scouring medias; By solid kalium mine with prepare scouring media and mix, mixed slip weight percent concentration is 50%, mixed material 80 turning/rotating speed of Min carries out the action of forced stirring scouring, cleans time 60min; The slip that scouring completes is regulated to slip weight percent concentration to 30% with the scouring media prepared; Slip after sizing mixing is carried out to the rotational flow separation of insoluble matter in cyclone, cyclone charging aperture pressure is controlled at 0.15Mpa; Cyclone underflow slip is regulated to slip weight percent concentration to 40% with the scouring media prepared, then pump into Multilayer vibrating screen and sieve separation, 61 tons of on-the-sieve materials remove to carry potassium, undersize material enters precipitation and drenches the halogen operation, cyclone overflow, Multilayer vibrating screen screenings are entered to the clarification of depositing reservoir natural subsidence, clear liquid enters the scouring media preparation process and recycles, and it is 12h that precipitation is drenched the halogen time, and sediment is insoluble matter etc.
Claims (1)
1. the removal methods of a high insoluble matter, low-grade solid kalium mine insoluble matter, it is characterized in that its by scouring media prepare, clean, size mixing, hydraulic cyclone, screening, precipitation drench the halogen operation and form, wherein the process conditions of scouring media preparation process are: magnesium chloride saturated solution and light bittern or fresh water are with the ratio of weight ratio 1:0.05～0.10, under normal temperature, normal pressure, carry out mixed preparing, the preparation time is 5-30Min; The process conditions of cleaning operation are: by solid kalium mine with prepare scouring media and mix, mixed slip weight percent concentration is 40～70%, mixed material 40～120 turning/rotating speed of Min carries out the action of forced stirring scouring, scouring time 20～90min; The process conditions of the operation of sizing mixing are: the slip that scouring completes is regulated to slip weight percent concentration to 20～50% with the scouring media prepared; The process conditions of hydraulic cyclone operation are: the slip after sizing mixing carries out the rotational flow separation of insoluble matter in cyclone, and cyclone charging aperture pressure is controlled at 0.10～0.20Mpa; The process conditions of screening operation are: cyclone underflow slip is regulated to slip weight percent concentration to 20～50% with the scouring media prepared, then pump into Multilayer vibrating screen and sieve separation, on-the-sieve material removes to carry potassium, and undersize material enters precipitation and drenches the halogen operation; The process conditions that precipitation is drenched the halogen operation are: cyclone overflow, Multilayer vibrating screen screenings are entered to the clarification of depositing reservoir natural subsidence, and clear liquid enters the scouring media preparation process and recycles, and it is 4～24h that precipitation is drenched the halogen time, and sediment is insoluble matter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100451308A CN102583450B (en) | 2012-02-27 | 2012-02-27 | Removing method of high undissolved substances and low-grade solid potassium ore undissolved substances |
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| CN2012100451308A CN102583450B (en) | 2012-02-27 | 2012-02-27 | Removing method of high undissolved substances and low-grade solid potassium ore undissolved substances |
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| CN102583450B true CN102583450B (en) | 2013-11-27 |
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| CN104163440A (en) * | 2014-08-27 | 2014-11-26 | 中国科学院青海盐湖研究所 | Method for producing KCl from ground surface carnallite |
| CN112177586B (en) * | 2020-09-26 | 2022-09-16 | 陕西省煤田地质集团有限公司 | Polyhalite in-situ roasting exploitation method |
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| CA2542289A1 (en) * | 2005-04-07 | 2006-10-07 | The Mosaic Company | Use of urea-formaldehyde resin in potash ore processing |
| CN102350399B (en) * | 2011-07-04 | 2013-09-04 | 中蓝连海设计研究院 | Desliming method for low-grade earth surface solid potassium ores |
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