US3477566A - Process for the electrostatic separation of the sylvite (kci) component of a mineral - Google Patents
Process for the electrostatic separation of the sylvite (kci) component of a mineral Download PDFInfo
- Publication number
- US3477566A US3477566A US600711A US3477566DA US3477566A US 3477566 A US3477566 A US 3477566A US 600711 A US600711 A US 600711A US 3477566D A US3477566D A US 3477566DA US 3477566 A US3477566 A US 3477566A
- Authority
- US
- United States
- Prior art keywords
- acid
- mineral
- salt
- crude
- percent
- 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.)
- Expired - Lifetime
Links
- 229910052500 inorganic mineral Inorganic materials 0.000 title description 31
- 239000011707 mineral Substances 0.000 title description 29
- 235000010755 mineral Nutrition 0.000 title description 28
- 238000000926 separation method Methods 0.000 title description 23
- 238000000034 method Methods 0.000 title description 15
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 title description 3
- 239000001103 potassium chloride Substances 0.000 title description 3
- 235000011164 potassium chloride Nutrition 0.000 title description 3
- 230000003750 conditioning effect Effects 0.000 description 40
- 239000003795 chemical substances by application Substances 0.000 description 37
- 239000000203 mixture Substances 0.000 description 35
- 235000002639 sodium chloride Nutrition 0.000 description 29
- 150000003839 salts Chemical class 0.000 description 27
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 24
- 235000014113 dietary fatty acids Nutrition 0.000 description 23
- 239000000194 fatty acid Substances 0.000 description 23
- 229930195729 fatty acid Natural products 0.000 description 23
- 150000004665 fatty acids Chemical class 0.000 description 19
- 239000012141 concentrate Substances 0.000 description 18
- 239000002253 acid Substances 0.000 description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 11
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 11
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 11
- 238000011282 treatment Methods 0.000 description 11
- 150000007522 mineralic acids Chemical class 0.000 description 9
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Substances [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
- 238000010306 acid treatment Methods 0.000 description 8
- 239000004927 clay Substances 0.000 description 8
- 150000007529 inorganic bases Chemical class 0.000 description 8
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 8
- 239000002585 base Substances 0.000 description 7
- 125000000129 anionic group Chemical group 0.000 description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 6
- 235000012239 silicon dioxide Nutrition 0.000 description 6
- 159000000000 sodium salts Chemical class 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- -1 kierserite Chemical compound 0.000 description 5
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 4
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 4
- 159000000001 potassium salts Chemical class 0.000 description 4
- 229960004889 salicylic acid Drugs 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 239000013058 crude material Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- YXAOOTNFFAQIPZ-UHFFFAOYSA-N 1-nitrosonaphthalen-2-ol Chemical compound C1=CC=CC2=C(N=O)C(O)=CC=C21 YXAOOTNFFAQIPZ-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 235000010233 benzoic acid Nutrition 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000007786 electrostatic charging Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011236 particulate material Substances 0.000 description 2
- WLJVXDMOQOGPHL-UHFFFAOYSA-N phenylacetic acid Chemical compound OC(=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011833 salt mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CBCZQJLYYRPMRI-UHFFFAOYSA-N 2-benzylnaphthalene-1-sulfonic acid Chemical compound C1=CC2=CC=CC=C2C(S(=O)(=O)O)=C1CC1=CC=CC=C1 CBCZQJLYYRPMRI-UHFFFAOYSA-N 0.000 description 1
- SYUYTOYKQOAVDW-UHFFFAOYSA-N 2-nitrosonaphthalen-1-ol Chemical compound C1=CC=C2C(O)=C(N=O)C=CC2=C1 SYUYTOYKQOAVDW-UHFFFAOYSA-N 0.000 description 1
- WLJVXDMOQOGPHL-PPJXEINESA-N 2-phenylacetic acid Chemical compound O[14C](=O)CC1=CC=CC=C1 WLJVXDMOQOGPHL-PPJXEINESA-N 0.000 description 1
- 241000707825 Argyrosomus regius Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010442 halite Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001853 inorganic hydroxide Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- KETHQOOVMIVLCH-UHFFFAOYSA-M nonyl sulfate(1-) Chemical compound CCCCCCCCCOS([O-])(=O)=O KETHQOOVMIVLCH-UHFFFAOYSA-M 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229960003424 phenylacetic acid Drugs 0.000 description 1
- 239000003279 phenylacetic acid Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- WBHHMMIMDMUBKC-QJWNTBNXSA-N ricinoleic acid Chemical compound CCCCCC[C@@H](O)C\C=C/CCCCCCCC(O)=O WBHHMMIMDMUBKC-QJWNTBNXSA-N 0.000 description 1
- 229960003656 ricinoleic acid Drugs 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C7/00—Separating solids from solids by electrostatic effect
- B03C7/003—Pretreatment of the solids prior to electrostatic separation
Definitions
- Another object of the present invention is an improvement in the efficiency and selectivity of the electrostatic separation of crude potassium salts having a particulate size less than 0.1 mm.
- Still another object of the present invention is an improvement in the efliciency and selectivity of the electrostatic separation of crude potassium salts containing impurities of clay.
- a particular object of the present invention is a particulate mixture of crude potassium salt having a coating comprising a mixture of an organic conditioning agent and an inorganic acid or base.
- a further particular object of the present invention is a' particulate mixture of crude potassium salt that is treated with an anionic organic conditioning agent followed by treatment with gaseous hydrogen chloride or ammonia.
- salts and manyfother mineralfniixtures ' can be separated into their components electrostatically after being preconditioned, especially by organic compounds which by forming negatively charged radicals split off one or'rnore protons or metal ions.
- conditioning agent or by a combination of different conditioning agents, the electrostatic charging of the different mineral components can be controlled-so that multiple-component' systems are separated completely with high yield into individual mineral components of greater purity.
- Autenrieth discloses in US. Patent 3,217,876 conditioning agents and the recycling and reconditioning of a portion of the particulate salt mixture.
- conditioning agents disclosed in the prior art patents are suitable for use in the present invention.
- the acids or bases which are used as additional reagents are applied advantageously as dilute or concentrated solutions in water, but are also added to the mineral mixture in their gaseous or solid state and thoroughly mixed therewith.
- the most suitable reagent, its most suitable concentration and the best method of adding it, depend largely on theproperties of the mineral mixture to be processed and are easily determined by those skilled in the art. 1
- the electrostatic separation of the present invention is advantageously carried out with ground or pulverized particulate mineral crudes such as sylvinite and heartsalz or mixtures thereof with the separation of salts such as sylvite, kierserite, rock salt and halite.
- organic conditioning agents suitable for conditioning the sy'lvite containing crude ,salts or mixtures of those crude salts prior to the separation steps are among others:
- Example 1 Crude material: Hartsalz with a K 0 content of 12.9%.
- Conditioning agent a first run fatty acid mixture having 6-12 C-atoms.
- the heartsalz is ground to a fineness of less than 1.0 mm. and is first conditioned and mixed by spraying upon it 0.2 g./ kg. of a mixture of, e.g. first run fatty acids having about 612 C-atoms and is then warmed to 65 C. by a current of warm air and separated into its components by falling through a potential gradient of 4 kv./cm. in a freefall electrostatic separator.
- first run fatty acids instead of the first run fatty acids, other prior art conditioning agents are used, as suggested for example by the German and United States patents disclosed in the Background of the Invention.
- present invention are HCl in aqueous or gaseous form, H 80 HNO H PO and colloidal silicic acid suspended in water.
- the inorganic bases preferably used in the present invention are aqueous or gaseous NH NaOH or KOH.
- Combinations of mineral mixtures with a conditioning agent and an inorganic acid which particularly illustrate the new and unexpected results of the invention are heartsalz having in terms of K 0, 12.9% treated with 6 to 12 carbon atom fatty acid and HCl, H I-INO H PO 50 or colloidal silicic acid; and heartsalz having about 12-13% K 0 and 3% clay treated with 3 to 12 carbon atom fatty acid mixture, salicylic acid, phenylacetic acid, phthalic acid, or nitroso-beta-naphthol and HCl, H 80 HNO or H3PO4.
- Illustrations of combinations of mineral mixtures with a conditioning agent and an inorganic base showing the new and unexpected results of the present invention include sylvinite having in terms of K 0, 18.5% and 5% clay treated with 6 to 12 carbon fatty acid and NaOH, KOH, NH OI-I or NH and sylvinite having 1516% K 0 and about 2% clay with 3 to 12 carbon fatty acid, salicylic acid, benzoic acid or phthalic acid and NaOH, KOH or NH OH.
- the preconditioned salts are preferably heated to temperatures be- 7 tween about 30 and 90 C.
- a comparison of the results of the results with and without the subsequent acid treatment shows the extraordinary improvement in the separating process.
- the residues contained about 2.5% K
- the residues after acid treatment contained only 0.9 to 1.6% K 0.
- the improvement is shown even more clearly by the concentrates.
- the K 0 concentrations were 10-15% higher in the first separation stage than without such acid treatment, and in the second separation stage they were also 1015% higher.
- the highest concentrates show an exceptionally high degree of purity.
- the K 0 contents of the residues are now only about /5 It is of importance only that the absolute amount of acid as high as without the use of alkalies as ancillary conis kept at an optimum value, such as can easily be deterditioning agents.
- the K 0 contents of the concentrates mined by one skilled in the art. are about -25% higher.
- v inresidne concentrate concentrate 0.2 g./kg. first run fatty acid- Plus 0.25 ml. 4 N HCL. 1. 0 41. 0 55. 1 Plus 0.125 ml. 8 N HCL 1. 2 42. 3 55. 0 1. 1 41. 5 54. 3
- K10 Fatty eaid mixture of -01:, 0.2 g./kg 30. 79. 7 Do 2 m1.lkg.1 N NH4OH 56.8 95.7 ./kg. 1 N NHiOH 57. 1 96. 0 50. 1 94. l 52. 0 94. 7 46. 7 85. 3 56. 3 94. 7 55. 8 94. 0 46. 3 86. 3 55. 3 95. 0 55. 1 94. 8 47. 1 85. 8 58. 8 93. 2 56. 8 94. 1
- a process for electrostatic separation of sylvite containing crude salt mineral comprising: contacting saidmineral, after grinding, with a small amount of an agent selected from the group consisting of a small amount of aqueous HCl, aqueous H SO aqueous H PO aqueous NaOH, aqueous KOH, aqueous NH OH, a suspension of silicic acid in water, gaseous NH or gaseous HCl and additionally conditioning said mineral with organic conditioning agents containing an anionic organic radical and warming up said mineral in a stream of hot drying gas and subjecting said mineral to electrostatic separation of its components.
- an agent selected from the group consisting of a small amount of aqueous HCl, aqueous H SO aqueous H PO aqueous NaOH, aqueous KOH, aqueous NH OH, a suspension of silicic acid in water, gaseous NH or gaseous HCl and additionally conditioning said mineral with organic conditioning agents containing an ani
- said inorganic acids and bases are selected from the group consisting of about 200-2000 ml. of about 1.0 to 4 normal HCl, about 200-2000 ml. of about 1.0 to 4 normal H 80 about 200-2000 ml. of about 1.0 to 4 normal HNO about 200-2000 ml. of about 1.0 to 4 normal colloidal silicic acid suspended in water, about 200-2000 ml. of about 1.0 to 4 normal NaOH, about 200-2000 ml. of about 1.0 to 4 normal KO'H, about 200- 2000 ml. of about 1.0 to 4 normal NH OH, about 5-25 g. gaseous NH or about 5-25 g. HCl per ton salt mineral.
- said inorganic acids and bases are selected from the group consisting of about 500-2000 ml. of about 1-2 normal HCl, about 500-2000 ml. of about 1-2 normal H 50 about 500 ml. of about 2 normal colloidal silicic acid suspended in water, about 500-2000 ml. of about 1-2 normal NaOH, about 500-2000 ml. of about 1-2 normal KOH, about 500-2000 ml. of about 1-2 normal NH OH, about 5-25 g. gaseous NH per ton salt mineral, or about 5-25 g. gaseous HCl per ton salt mineral, and said salt mineral is conditioned with a small quantity of about 200 g. of an organic anionic conditioning agent per ton salt mineral.
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Paints Or Removers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK58696A DE1237514B (de) | 1966-03-11 | 1966-03-11 | Verfahren zur elektrostatischen Aufbereitung von Mineralgemischen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3477566A true US3477566A (en) | 1969-11-11 |
Family
ID=7228801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US600711A Expired - Lifetime US3477566A (en) | 1966-03-11 | 1966-12-12 | Process for the electrostatic separation of the sylvite (kci) component of a mineral |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3477566A (fr) |
| DE (1) | DE1237514B (fr) |
| ES (1) | ES335201A1 (fr) |
| FR (1) | FR1505274A (fr) |
| OA (1) | OA02290A (fr) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3581886A (en) * | 1967-10-12 | 1971-06-01 | Wintershall Ag | Two-stage electrostatic separation of particulate material |
| US3802556A (en) * | 1970-03-26 | 1974-04-09 | Wintershall Ag | Process for electrostatic dressing and/or working up of salt and mineral mixtures |
| US3885673A (en) * | 1967-07-28 | 1975-05-27 | Alsace Mines Potasse | Electrostatic separation of potash ores |
| US4375454A (en) * | 1980-12-12 | 1983-03-01 | Intermountain Research And Development Corporation | Electrostatic enrichment of trona and nahcolite ores |
| US20080029441A1 (en) * | 2006-08-04 | 2008-02-07 | Florian Deiseroth | Method for treating ground crude potassium salts that contain kieserite |
| US20090152173A1 (en) * | 2007-12-18 | 2009-06-18 | Bulk Handling Systems, Inc. | Separation system for recyclable material |
| US20100084323A1 (en) * | 2008-10-07 | 2010-04-08 | Emerging Acquisitions, Llc | Cross flow air separation system |
| US20100206783A1 (en) * | 2001-10-02 | 2010-08-19 | Emerging Acquisitions, Llc | De-inking screen |
| US20100282647A1 (en) * | 2006-11-03 | 2010-11-11 | Emerging Acquisitions, Llc | Electrostatic material separator |
| US20100288680A1 (en) * | 2009-05-14 | 2010-11-18 | Emerging Acquisitions, Inc. | Heating system for material processing screen |
| US20110100884A1 (en) * | 2001-10-02 | 2011-05-05 | Emerging Acquisitions, Llc | De-inking screen with air knife |
| RU2555906C1 (ru) * | 2014-02-11 | 2015-07-10 | Закрытое акционерное общество ВНИИ Галургии (ЗАО ВНИИ Галургии) | Способ переработки калийсодержащих руд |
| US9227849B2 (en) | 2012-07-24 | 2016-01-05 | Bio Techno Terra, LLC | Systems and methods for processing sylvinite and carnallite ores |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4127574C1 (fr) * | 1991-08-21 | 1993-03-11 | Kali Und Salz Ag, 3500 Kassel, De |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2090418A (en) * | 1935-04-22 | 1937-08-17 | Fred R Johnson | Method of treating material for separation |
| US2188932A (en) * | 1935-08-28 | 1940-02-06 | Saskatchewan Potash | Flotation process for sylvinite ores |
| US2593431A (en) * | 1948-01-16 | 1952-04-22 | Us Sec The Dept Of The Interio | Reagent conditioning for electrostatic separation of minerals |
| DE1108632B (de) * | 1957-04-27 | 1961-06-15 | Kali Forschungsanstalt Gmbh | Verfahren zur elektrostatischen Aufbereitung von Mineralgemischen |
| US3008573A (en) * | 1960-03-31 | 1961-11-14 | Int Minerals & Chem Corp | Electrostatic separation process |
| US3049233A (en) * | 1956-05-17 | 1962-08-14 | Montedison Spa | Process for separation of schoenite from sodium chloride by means of flotation |
| CA650049A (en) * | 1962-10-09 | L. Samsel Gene | Method for beneficiating potash materials | |
| US3388794A (en) * | 1963-04-19 | 1968-06-18 | Kali Chemie Ag | Electrostatic separation process and conditioning compositions therefor |
-
1966
- 1966-03-11 DE DEK58696A patent/DE1237514B/de active Pending
- 1966-12-12 US US600711A patent/US3477566A/en not_active Expired - Lifetime
- 1966-12-21 FR FR88316A patent/FR1505274A/fr not_active Expired
-
1967
- 1967-01-03 OA OA52707A patent/OA02290A/fr unknown
- 1967-01-03 ES ES0335201A patent/ES335201A1/es not_active Expired
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA650049A (en) * | 1962-10-09 | L. Samsel Gene | Method for beneficiating potash materials | |
| US2090418A (en) * | 1935-04-22 | 1937-08-17 | Fred R Johnson | Method of treating material for separation |
| US2188932A (en) * | 1935-08-28 | 1940-02-06 | Saskatchewan Potash | Flotation process for sylvinite ores |
| US2593431A (en) * | 1948-01-16 | 1952-04-22 | Us Sec The Dept Of The Interio | Reagent conditioning for electrostatic separation of minerals |
| US3049233A (en) * | 1956-05-17 | 1962-08-14 | Montedison Spa | Process for separation of schoenite from sodium chloride by means of flotation |
| DE1108632B (de) * | 1957-04-27 | 1961-06-15 | Kali Forschungsanstalt Gmbh | Verfahren zur elektrostatischen Aufbereitung von Mineralgemischen |
| US3008573A (en) * | 1960-03-31 | 1961-11-14 | Int Minerals & Chem Corp | Electrostatic separation process |
| US3388794A (en) * | 1963-04-19 | 1968-06-18 | Kali Chemie Ag | Electrostatic separation process and conditioning compositions therefor |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885673A (en) * | 1967-07-28 | 1975-05-27 | Alsace Mines Potasse | Electrostatic separation of potash ores |
| US3581886A (en) * | 1967-10-12 | 1971-06-01 | Wintershall Ag | Two-stage electrostatic separation of particulate material |
| US3802556A (en) * | 1970-03-26 | 1974-04-09 | Wintershall Ag | Process for electrostatic dressing and/or working up of salt and mineral mixtures |
| US4375454A (en) * | 1980-12-12 | 1983-03-01 | Intermountain Research And Development Corporation | Electrostatic enrichment of trona and nahcolite ores |
| US20110100884A1 (en) * | 2001-10-02 | 2011-05-05 | Emerging Acquisitions, Llc | De-inking screen with air knife |
| US20100206783A1 (en) * | 2001-10-02 | 2010-08-19 | Emerging Acquisitions, Llc | De-inking screen |
| US8857621B2 (en) | 2001-10-02 | 2014-10-14 | Emerging Acquisitions, Llc | De-inking screen with air knife |
| US8430249B2 (en) | 2001-10-02 | 2013-04-30 | Emerging Acquisitions, Llc | De-inking screen |
| US7635822B2 (en) * | 2006-08-04 | 2009-12-22 | K+S Aktiengesellschaft | Method for treating ground crude potassium salts that contain kieserite |
| US20080029441A1 (en) * | 2006-08-04 | 2008-02-07 | Florian Deiseroth | Method for treating ground crude potassium salts that contain kieserite |
| EP1884287A3 (fr) * | 2006-08-04 | 2011-01-19 | K+S Aktiengesellschaft | Procédé destiné à la préparation de kiesérite comportant des sels bruts potassiques moulus |
| US20100282647A1 (en) * | 2006-11-03 | 2010-11-11 | Emerging Acquisitions, Llc | Electrostatic material separator |
| US8307987B2 (en) | 2006-11-03 | 2012-11-13 | Emerging Acquisitions, Llc | Electrostatic material separator |
| US20090152173A1 (en) * | 2007-12-18 | 2009-06-18 | Bulk Handling Systems, Inc. | Separation system for recyclable material |
| US8618432B2 (en) * | 2007-12-18 | 2013-12-31 | Emerging Acquisitions, Llc | Separation system for recyclable material |
| US20100084323A1 (en) * | 2008-10-07 | 2010-04-08 | Emerging Acquisitions, Llc | Cross flow air separation system |
| US7942273B2 (en) | 2008-10-07 | 2011-05-17 | Emerging Acquisitions, Llc | Cross flow air separation system |
| US20100288680A1 (en) * | 2009-05-14 | 2010-11-18 | Emerging Acquisitions, Inc. | Heating system for material processing screen |
| US8336714B2 (en) | 2009-05-14 | 2012-12-25 | Emerging Acquistions, LLC | Heating system for material processing screen |
| US9227849B2 (en) | 2012-07-24 | 2016-01-05 | Bio Techno Terra, LLC | Systems and methods for processing sylvinite and carnallite ores |
| RU2555906C1 (ru) * | 2014-02-11 | 2015-07-10 | Закрытое акционерное общество ВНИИ Галургии (ЗАО ВНИИ Галургии) | Способ переработки калийсодержащих руд |
Also Published As
| Publication number | Publication date |
|---|---|
| OA02290A (fr) | 1970-05-05 |
| ES335201A1 (es) | 1967-11-16 |
| FR1505274A (fr) | 1967-12-08 |
| DE1237514B (de) | 1967-03-30 |
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