OA10553A - Procédé de purification par extraction d'un milieuliquide - Google Patents

Procédé de purification par extraction d'un milieuliquide Download PDF

Info

Publication number: OA10553A
Authority: OA; OAPI
Prior art keywords: organic compound; process according; substance; precipitate; isolated
Prior art date: 1995-06-21

Application number

OA70168A

Other languages

English (en)

French (fr)

Inventor

Mohamed Takhim

Original Assignee

Mohamed Takhim

Michel Vital Jean Culot

Priority date (The priority date 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 date listed.)

1995-06-21

Filing date

1997-12-19

Publication date

2002-05-30

1997-12-19 Application filed by Mohamed Takhim, Michel Vital Jean Culot filed Critical Mohamed Takhim

2002-05-30 Publication of OA10553A publication Critical patent/OA10553A/fr

Links

239000007788 liquid Substances 0.000 title claims abstract description 33
238000000746 purification Methods 0.000 title claims abstract description 16
238000000605 extraction Methods 0.000 title claims abstract description 9
238000000034 method Methods 0.000 title claims description 68
150000002894 organic compounds Chemical class 0.000 claims abstract description 54
239000000126 substance Substances 0.000 claims abstract description 42
239000002244 precipitate Substances 0.000 claims abstract description 30
238000001914 filtration Methods 0.000 claims abstract description 13
238000006243 chemical reaction Methods 0.000 claims abstract description 11
239000007795 chemical reaction product Substances 0.000 claims abstract description 8
150000001875 compounds Chemical class 0.000 claims abstract description 6
239000003574 free electron Substances 0.000 claims abstract description 3
125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 3
125000004430 oxygen atom Chemical group O* 0.000 claims abstract description 3
125000004434 sulfur atom Chemical group 0.000 claims abstract description 3
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 77
PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 74
235000011007 phosphoric acid Nutrition 0.000 claims description 38
229910000147 aluminium phosphate Inorganic materials 0.000 claims description 35
239000002253 acid Substances 0.000 claims description 26
239000000243 solution Substances 0.000 claims description 26
239000000706 filtrate Substances 0.000 claims description 24
238000001556 precipitation Methods 0.000 claims description 24
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
239000012535 impurity Substances 0.000 claims description 19
229910019142 PO4 Inorganic materials 0.000 claims description 18
235000021317 phosphate Nutrition 0.000 claims description 18
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 15
239000010452 phosphate Substances 0.000 claims description 14
239000012065 filter cake Substances 0.000 claims description 12
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 11
150000003839 salts Chemical class 0.000 claims description 10
238000004519 manufacturing process Methods 0.000 claims description 9
OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 8
238000002955 isolation Methods 0.000 claims description 7
KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims description 6
YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 6
239000000203 mixture Substances 0.000 claims description 6
RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 claims description 6
150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 6
230000001376 precipitating effect Effects 0.000 claims description 6
239000007864 aqueous solution Substances 0.000 claims description 5
238000003306 harvesting Methods 0.000 claims description 5
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methyl-N-phenylamine Natural products CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 claims description 4
150000004982 aromatic amines Chemical class 0.000 claims description 4
239000001175 calcium sulphate Substances 0.000 claims description 4
235000011132 calcium sulphate Nutrition 0.000 claims description 4
238000002347 injection Methods 0.000 claims description 4
239000007924 injection Substances 0.000 claims description 4
RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 claims description 4
238000012986 modification Methods 0.000 claims description 4
230000004048 modification Effects 0.000 claims description 4
QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 claims description 4
239000000047 product Substances 0.000 claims description 4
238000000926 separation method Methods 0.000 claims description 4
150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 4
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
230000015572 biosynthetic process Effects 0.000 claims description 3
238000000975 co-precipitation Methods 0.000 claims description 3
125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
238000003860 storage Methods 0.000 claims description 3
229930192474 thiophene Natural products 0.000 claims description 3
BJICIOTXNBTOAJ-UHFFFAOYSA-N 3-methylnaphthalen-2-amine Chemical compound C1=CC=C2C=C(N)C(C)=CC2=C1 BJICIOTXNBTOAJ-UHFFFAOYSA-N 0.000 claims description 2
125000000217 alkyl group Chemical group 0.000 claims description 2
239000012141 concentrate Substances 0.000 claims description 2
208000028659 discharge Diseases 0.000 claims description 2
238000006073 displacement reaction Methods 0.000 claims description 2
239000000839 emulsion Substances 0.000 claims description 2
IWYBVQLPTCMVFO-UHFFFAOYSA-N ethyl 2,2-dichloroacetate Chemical compound CCOC(=O)C(Cl)Cl IWYBVQLPTCMVFO-UHFFFAOYSA-N 0.000 claims description 2
150000002828 nitro derivatives Chemical class 0.000 claims description 2
238000012545 processing Methods 0.000 claims description 2
238000004064 recycling Methods 0.000 claims description 2
239000013535 sea water Substances 0.000 claims description 2
238000010025 steaming Methods 0.000 claims 7
PUZDQBBMVXSEPB-UHFFFAOYSA-N 3-chloro-2-methylpent-2-ene Chemical compound CCC(Cl)=C(C)C PUZDQBBMVXSEPB-UHFFFAOYSA-N 0.000 claims 1
229940095564 anhydrous calcium sulfate Drugs 0.000 claims 1
125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims 1
238000009835 boiling Methods 0.000 claims 1
150000001805 chlorine compounds Chemical class 0.000 claims 1
238000011033 desalting Methods 0.000 claims 1
238000005530 etching Methods 0.000 claims 1
150000007529 inorganic bases Chemical class 0.000 claims 1
150000007530 organic bases Chemical class 0.000 claims 1
229920006395 saturated elastomer Polymers 0.000 claims 1
229910021653 sulphate ion Inorganic materials 0.000 claims 1
239000003643 water by type Substances 0.000 claims 1
UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
-1 MSA compound Chemical class 0.000 description 6
239000011575 calcium Substances 0.000 description 6
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
239000002585 base Substances 0.000 description 5
229910052793 cadmium Inorganic materials 0.000 description 5
239000003795 chemical substances by application Substances 0.000 description 5
JAZCSWFKVAHBLR-UHFFFAOYSA-N dihydrogen phosphate;phenylazanium Chemical compound OP(O)(O)=O.NC1=CC=CC=C1 JAZCSWFKVAHBLR-UHFFFAOYSA-N 0.000 description 5
238000004458 analytical method Methods 0.000 description 4
239000011777 magnesium Substances 0.000 description 4
230000008929 regeneration Effects 0.000 description 4
238000011069 regeneration method Methods 0.000 description 4
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
230000002378 acidificating effect Effects 0.000 description 3
229910052785 arsenic Inorganic materials 0.000 description 3
239000012045 crude solution Substances 0.000 description 3
239000013078 crystal Substances 0.000 description 3
229910052731 fluorine Inorganic materials 0.000 description 3
238000011084 recovery Methods 0.000 description 3
239000002904 solvent Substances 0.000 description 3
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
239000004254 Ammonium phosphate Substances 0.000 description 2
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
238000010795 Steam Flooding Methods 0.000 description 2
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
DZHMRSPXDUUJER-UHFFFAOYSA-N [amino(hydroxy)methylidene]azanium;dihydrogen phosphate Chemical compound NC(N)=O.OP(O)(O)=O DZHMRSPXDUUJER-UHFFFAOYSA-N 0.000 description 2
150000007513 acids Chemical class 0.000 description 2
238000013019 agitation Methods 0.000 description 2
229910000148 ammonium phosphate Inorganic materials 0.000 description 2
235000019289 ammonium phosphates Nutrition 0.000 description 2
239000004202 carbamide Substances 0.000 description 2
238000002425 crystallisation Methods 0.000 description 2
230000008025 crystallization Effects 0.000 description 2
238000011161 development Methods 0.000 description 2
230000018109 developmental process Effects 0.000 description 2
MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
238000004821 distillation Methods 0.000 description 2
238000010438 heat treatment Methods 0.000 description 2
230000007062 hydrolysis Effects 0.000 description 2
238000006460 hydrolysis reaction Methods 0.000 description 2
238000001256 steam distillation Methods 0.000 description 2
238000005406 washing Methods 0.000 description 2
RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
229910003944 H3 PO4 Inorganic materials 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
229920000877 Melamine resin Polymers 0.000 description 1
229910002651 NO3 Inorganic materials 0.000 description 1
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
229910052770 Uranium Inorganic materials 0.000 description 1
102100029469 WD repeat and HMG-box DNA-binding protein 1 Human genes 0.000 description 1
101710097421 WD repeat and HMG-box DNA-binding protein 1 Proteins 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
235000011054 acetic acid Nutrition 0.000 description 1
150000001243 acetic acids Chemical class 0.000 description 1
229910000318 alkali metal phosphate Inorganic materials 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical class [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
MMCPOSDMTGQNKG-UHFFFAOYSA-N anilinium chloride Chemical compound Cl.NC1=CC=CC=C1 MMCPOSDMTGQNKG-UHFFFAOYSA-N 0.000 description 1
150000001450 anions Chemical class 0.000 description 1
239000011260 aqueous acid Substances 0.000 description 1
RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
150000001559 benzoic acids Chemical class 0.000 description 1
230000005587 bubbling Effects 0.000 description 1
BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
229910052792 caesium Inorganic materials 0.000 description 1
238000001354 calcination Methods 0.000 description 1
229910052791 calcium Inorganic materials 0.000 description 1
239000001110 calcium chloride Substances 0.000 description 1
229910001628 calcium chloride Inorganic materials 0.000 description 1
YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical class [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 1
150000001735 carboxylic acids Chemical class 0.000 description 1
239000001913 cellulose Substances 0.000 description 1
229920002678 cellulose Polymers 0.000 description 1
238000004140 cleaning Methods 0.000 description 1
238000010908 decantation Methods 0.000 description 1
238000004042 decolorization Methods 0.000 description 1
238000010612 desalination reaction Methods 0.000 description 1
235000014113 dietary fatty acids Nutrition 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
238000010790 dilution Methods 0.000 description 1
239000012895 dilution Substances 0.000 description 1
238000009826 distribution Methods 0.000 description 1
239000000975 dye Substances 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000005868 electrolysis reaction Methods 0.000 description 1
230000008030 elimination Effects 0.000 description 1
238000003379 elimination reaction Methods 0.000 description 1
238000010828 elution Methods 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
239000003344 environmental pollutant Substances 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
238000004880 explosion Methods 0.000 description 1
239000000194 fatty acid Substances 0.000 description 1
229930195729 fatty acid Natural products 0.000 description 1
150000004665 fatty acids Chemical class 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
239000003337 fertilizer Substances 0.000 description 1
238000005188 flotation Methods 0.000 description 1
238000000227 grinding Methods 0.000 description 1
239000010440 gypsum Substances 0.000 description 1
229910052602 gypsum Inorganic materials 0.000 description 1
229910001385 heavy metal Inorganic materials 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
230000001939 inductive effect Effects 0.000 description 1
239000003456 ion exchange resin Substances 0.000 description 1
229920003303 ion-exchange polymer Polymers 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
229920005610 lignin Polymers 0.000 description 1
238000000622 liquid--liquid extraction Methods 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
239000000463 material Substances 0.000 description 1
JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
229910021645 metal ion Inorganic materials 0.000 description 1
239000003607 modifier Substances 0.000 description 1
239000012452 mother liquor Substances 0.000 description 1
VBEGHXKAFSLLGE-UHFFFAOYSA-N n-phenylnitramide Chemical compound [O-][N+](=O)NC1=CC=CC=C1 VBEGHXKAFSLLGE-UHFFFAOYSA-N 0.000 description 1
229910017604 nitric acid Inorganic materials 0.000 description 1
229910017464 nitrogen compound Inorganic materials 0.000 description 1
150000002830 nitrogen compounds Chemical class 0.000 description 1
239000005416 organic matter Substances 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
230000000149 penetrating effect Effects 0.000 description 1
XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 description 1
YXJYBPXSEKMEEJ-UHFFFAOYSA-N phosphoric acid;sulfuric acid Chemical compound OP(O)(O)=O.OS(O)(=O)=O YXJYBPXSEKMEEJ-UHFFFAOYSA-N 0.000 description 1
239000011505 plaster Substances 0.000 description 1
231100000719 pollutant Toxicity 0.000 description 1
230000000750 progressive effect Effects 0.000 description 1
239000003380 propellant Substances 0.000 description 1
230000002285 radioactive effect Effects 0.000 description 1
239000000376 reactant Substances 0.000 description 1
239000012429 reaction media Substances 0.000 description 1
239000012047 saturated solution Substances 0.000 description 1
238000007873 sieving Methods 0.000 description 1
238000000638 solvent extraction Methods 0.000 description 1
235000011149 sulphuric acid Nutrition 0.000 description 1
239000002426 superphosphate Substances 0.000 description 1
239000000725 suspension Substances 0.000 description 1
238000003786 synthesis reaction Methods 0.000 description 1
238000004448 titration Methods 0.000 description 1
238000012549 training Methods 0.000 description 1
238000012546 transfer Methods 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
- B01D3/38—Steam distillation
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/96—Methods for the preparation of sulfates in general
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
- C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Engineering & Computer Science (AREA)
Environmental & Geological Engineering (AREA)
Chemical Kinetics & Catalysis (AREA)
Life Sciences & Earth Sciences (AREA)
Manufacturing & Machinery (AREA)
Metallurgy (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Geology (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
General Chemical & Material Sciences (AREA)
Hydrology & Water Resources (AREA)
Water Supply & Treatment (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Extraction Or Liquid Replacement (AREA)
Separation Using Semi-Permeable Membranes (AREA)
Physical Water Treatments (AREA)
Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Compounds Of Unknown Constitution (AREA)

OA70168A 1995-06-21 1997-12-19 Procédé de purification par extraction d'un milieuliquide OA10553A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
BE9500548		1995-06-21

Publications (1)

Publication Number	Publication Date
OA10553A true OA10553A (fr)	2002-05-30

Family

ID=3889052

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
OA70168A OA10553A (fr)	1995-06-21	1997-12-19	Procédé de purification par extraction d'un milieuliquide

Country Status (26)

Country	Link
US (1)	US5989508A (de)
EP (1)	EP0871525B1 (de)
JP (1)	JPH11507871A (de)
KR (1)	KR100367356B1 (de)
CN (1)	CN1070719C (de)
AT (1)	ATE213177T1 (de)
AU (1)	AU708600B2 (de)
BR (1)	BR9608477A (de)
CA (1)	CA2225798C (de)
CZ (1)	CZ289657B6 (de)
DE (1)	DE69619274T2 (de)
DZ (1)	DZ2056A1 (de)
EA (1)	EA000476B1 (de)
ES (1)	ES2172665T3 (de)
HU (1)	HUP9900366A3 (de)
IL (1)	IL122645A (de)
JO (1)	JO1916B1 (de)
MA (1)	MA23916A1 (de)
NO (1)	NO975982L (de)
OA (1)	OA10553A (de)
PL (1)	PL324171A1 (de)
TN (1)	TNSN96087A1 (de)
TR (1)	TR199701651T1 (de)
TW (1)	TW421606B (de)
WO (1)	WO1997000714A1 (de)
ZA (1)	ZA965264B (de)

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BE1011211A6 (nl) *	1997-06-12	1999-06-01	Ecophos	Werkwijze voor het concentreren van fosforzuur.
FI105909B (fi)	1999-03-24	2000-10-31	Kemira Chemicals Oy	Menetelmä fosforihapon laadun parantamiseksi
PL2229366T3 (pl) *	2007-12-12	2013-10-31	Basf Se	Sposób przeróbki mieszanin zawierających sole imidazoliowe
CN102351269A (zh) *	2011-08-10	2012-02-15	江苏九九久科技股份有限公司	处理高盐份、高有机物含量废水的方法
RU2503623C1 (ru) *	2012-09-05	2014-01-10	Открытое Акционерное Общество "Научно-Исследовательский И Проектный Институт Карбамида И Продуктов Органического Синтеза" (Оао Ниик)	Способ очистки сточных вод производства меламина
CN104591486B (zh) *	2014-12-30	2017-10-10	江苏远征化工有限公司	一种低酸度染料污水的处理方法
CN113754169A (zh) *	2021-09-27	2021-12-07	成都清境环境科技有限公司	一种阳极磷酸废液再生的处理方法

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1996
- 1996-06-19 TW TW085107410A patent/TW421606B/zh not_active IP Right Cessation
- 1996-06-20 MA MA24290A patent/MA23916A1/fr unknown
- 1996-06-20 TN TNTNSN96087A patent/TNSN96087A1/fr unknown
- 1996-06-21 CZ CZ19974118A patent/CZ289657B6/cs not_active IP Right Cessation
- 1996-06-21 KR KR1019970709569A patent/KR100367356B1/ko not_active Expired - Fee Related
- 1996-06-21 IL IL12264596A patent/IL122645A/xx not_active IP Right Cessation
- 1996-06-21 AU AU62953/96A patent/AU708600B2/en not_active Ceased
- 1996-06-21 CN CN96195688A patent/CN1070719C/zh not_active Expired - Fee Related
- 1996-06-21 TR TR97/01651T patent/TR199701651T1/xx unknown
- 1996-06-21 ES ES96921837T patent/ES2172665T3/es not_active Expired - Lifetime
- 1996-06-21 PL PL96324171A patent/PL324171A1/xx unknown
- 1996-06-21 ZA ZA965264A patent/ZA965264B/xx unknown
- 1996-06-21 WO PCT/BE1996/000066 patent/WO1997000714A1/fr not_active Ceased
- 1996-06-21 BR BR9608477-4A patent/BR9608477A/pt not_active IP Right Cessation
- 1996-06-21 EA EA199800073A patent/EA000476B1/ru not_active IP Right Cessation
- 1996-06-21 CA CA002225798A patent/CA2225798C/fr not_active Expired - Fee Related
- 1996-06-21 JP JP9503476A patent/JPH11507871A/ja active Pending
- 1996-06-21 DE DE69619274T patent/DE69619274T2/de not_active Expired - Lifetime
- 1996-06-21 US US08/981,469 patent/US5989508A/en not_active Expired - Fee Related
- 1996-06-21 EP EP96921837A patent/EP0871525B1/de not_active Expired - Lifetime
- 1996-06-21 HU HU9900366A patent/HUP9900366A3/hu unknown
- 1996-06-21 AT AT96921837T patent/ATE213177T1/de active
- 1996-06-22 JO JO19961916A patent/JO1916B1/en active
- 1996-06-22 DZ DZ960100A patent/DZ2056A1/fr active
1997
- 1997-12-19 OA OA70168A patent/OA10553A/fr unknown
- 1997-12-19 NO NO975982A patent/NO975982L/no not_active Application Discontinuation

Also Published As

Publication number	Publication date
NO975982D0 (no)	1997-12-19
DE69619274T2 (de)	2002-11-21
HUP9900366A3 (en)	1999-11-29
TNSN96087A1 (fr)	1998-12-31
DZ2056A1 (fr)	2004-09-05
ATE213177T1 (de)	2002-02-15
EA199800073A1 (ru)	1998-08-27
EA000476B1 (ru)	1999-08-26
HUP9900366A2 (hu)	1999-05-28
JPH11507871A (ja)	1999-07-13
CZ411897A3 (cs)	1998-06-17
KR19990028257A (ko)	1999-04-15
NO975982L (no)	1998-02-23
IL122645A0 (en)	1998-08-16
ES2172665T3 (es)	2002-10-01
KR100367356B1 (ko)	2003-02-19
EP0871525B1 (de)	2002-02-13
US5989508A (en)	1999-11-23
WO1997000714A1 (fr)	1997-01-09
MA23916A1 (fr)	1996-12-31
BR9608477A (pt)	1999-11-30
ZA965264B (en)	1997-01-29
IL122645A (en)	2001-01-11
PL324171A1 (en)	1998-05-11
JO1916B1 (en)	1997-01-15
CZ289657B6 (cs)	2002-03-13
TW421606B (en)	2001-02-11
CN1191495A (zh)	1998-08-26
DE69619274D1 (de)	2002-03-21
CN1070719C (zh)	2001-09-12
AU708600B2 (en)	1999-08-05
CA2225798C (fr)	2002-12-17
MX9710501A (es)	1998-08-30
EP0871525A1 (de)	1998-10-21
TR199701651T1 (xx)	1998-05-21
CA2225798A1 (fr)	1997-01-09
AU6295396A (en)	1997-01-22

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CN104692566B (zh)	2016-08-24	一种芳基三唑啉酮高盐废水的处理方法
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JP7704764B2 (ja)	2025-07-08	工業規模の硫酸アンモニウム生産
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EP0989953B1 (de)	2002-03-27	Verfahren zur aufkonzentrierung von phosphorsäure
FR2760016A1 (fr)	1998-08-28	Procede de fabrication industrielle de diosmine a partir de l'hesperidine
CH654558A5 (fr)	1986-02-28	Procede pour la production d'oxyfluorure de niobium.
FR2774374A1 (fr)	1999-08-06	Procede pour la production de terephtalate d'un metal alcalin purifie, issu de produits de saponification de polyterephtalates d'alkylene de recuperation
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CH331510A (fr)	1958-07-31	Procédé d'obtention d'amides organiques insaturées solubles dans l'eau, à partir de leurs sulfates
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