CA2755058A1 - Production of high-purity suspensions containing precipitated silicas by electrodialysis - Google Patents
Production of high-purity suspensions containing precipitated silicas by electrodialysis Download PDFInfo
- Publication number
- CA2755058A1 CA2755058A1 CA2755058A CA2755058A CA2755058A1 CA 2755058 A1 CA2755058 A1 CA 2755058A1 CA 2755058 A CA2755058 A CA 2755058A CA 2755058 A CA2755058 A CA 2755058A CA 2755058 A1 CA2755058 A1 CA 2755058A1
- Authority
- CA
- Canada
- Prior art keywords
- suspension
- electrodialysis
- precipitated silica
- region
- process according
- 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.)
- Abandoned
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 112
- 238000000909 electrodialysis Methods 0.000 title claims description 64
- 238000004519 manufacturing process Methods 0.000 title description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 141
- 238000000034 method Methods 0.000 claims abstract description 60
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 60
- 150000003839 salts Chemical class 0.000 claims abstract description 41
- 239000000047 product Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 27
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 20
- 239000012528 membrane Substances 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 238000005341 cation exchange Methods 0.000 claims description 14
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 claims description 10
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 10
- 235000011152 sodium sulphate Nutrition 0.000 claims description 10
- 239000002535 acidifier Substances 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 8
- 229910052791 calcium Inorganic materials 0.000 claims description 8
- 239000011575 calcium Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910052749 magnesium Inorganic materials 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 239000005864 Sulphur Substances 0.000 claims description 7
- 239000012153 distilled water Substances 0.000 claims description 7
- 238000003801 milling Methods 0.000 claims description 7
- 239000012065 filter cake Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000003011 anion exchange membrane Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000002612 dispersion medium Substances 0.000 claims description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 3
- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000011133 lead Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 21
- 150000001450 anions Chemical class 0.000 description 12
- 239000000523 sample Substances 0.000 description 11
- 239000002253 acid Substances 0.000 description 10
- 239000012535 impurity Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 238000002356 laser light scattering Methods 0.000 description 6
- 235000019353 potassium silicate Nutrition 0.000 description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 229910021653 sulphate ion Inorganic materials 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000001117 sulphuric acid Substances 0.000 description 4
- 235000011149 sulphuric acid Nutrition 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000012490 blank solution Substances 0.000 description 3
- 239000012482 calibration solution Substances 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005243 fluidization Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- -1 salt ions Chemical class 0.000 description 3
- 239000012488 sample solution Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229920000557 Nafion® Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000009837 dry grinding Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005347 high resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000001238 wet grinding Methods 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- MEUAVGJWGDPTLF-UHFFFAOYSA-N 4-(5-benzenesulfonylamino-1-methyl-1h-benzoimidazol-2-ylmethyl)-benzamidine Chemical compound N=1C2=CC(NS(=O)(=O)C=3C=CC=CC=3)=CC=C2N(C)C=1CC1=CC=C(C(N)=N)C=C1 MEUAVGJWGDPTLF-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000005029 sieve analysis Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/141—Preparation of hydrosols or aqueous dispersions
- C01B33/1415—Preparation of hydrosols or aqueous dispersions by suspending finely divided silica in water
- C01B33/1417—Preparation of hydrosols or aqueous dispersions by suspending finely divided silica in water an aqueous dispersion being obtained
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
- B01D61/46—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/44—Ion-selective electrodialysis
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
- C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/28—Compounds of silicon
- C09C1/30—Silicic acid
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/14—Pressure control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/34—Energy carriers
- B01D2313/345—Electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Urology & Nephrology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Silicon Compounds (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009001512.4 | 2009-03-12 | ||
| DE200910001512 DE102009001512A1 (de) | 2009-03-12 | 2009-03-12 | Herstellung von hochreinen Suspensionen enthaltend gefällte Kieselsäuren durch Elektrodialyse |
| PCT/EP2010/053098 WO2010103068A1 (en) | 2009-03-12 | 2010-03-11 | Production of high-purity suspensions containing precipitated silicas by electrodialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2755058A1 true CA2755058A1 (en) | 2010-09-16 |
Family
ID=42174082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2755058A Abandoned CA2755058A1 (en) | 2009-03-12 | 2010-03-11 | Production of high-purity suspensions containing precipitated silicas by electrodialysis |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20110302849A1 (enExample) |
| EP (1) | EP2405993A1 (enExample) |
| JP (1) | JP5479502B2 (enExample) |
| KR (1) | KR20110137304A (enExample) |
| CN (1) | CN102348493A (enExample) |
| BR (1) | BRPI1008938A2 (enExample) |
| CA (1) | CA2755058A1 (enExample) |
| DE (1) | DE102009001512A1 (enExample) |
| MX (1) | MX2011009262A (enExample) |
| RU (1) | RU2538594C2 (enExample) |
| TW (1) | TWI465397B (enExample) |
| WO (1) | WO2010103068A1 (enExample) |
| ZA (1) | ZA201106627B (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014087748A (ja) * | 2012-10-30 | 2014-05-15 | Mitsui Eng & Shipbuild Co Ltd | 液間イオン移送方法及び液間イオン移送装置 |
| CN103112926A (zh) * | 2012-11-30 | 2013-05-22 | 姜英杰 | 一种节能节水离子交换器在苦咸水淡化中的应用 |
| CN106865555B (zh) * | 2017-03-20 | 2018-09-18 | 淮南联合大学 | 一种利用双极膜电渗析制备药用辅料二氧化硅的方法 |
| EP3932862A1 (de) | 2020-07-01 | 2022-01-05 | Evonik Operations GmbH | Funktionalisiertes graphen, verfahren zur herstellung eines funktionalisierten graphens und dessen verwendung |
| EP3954743A1 (de) | 2020-08-12 | 2022-02-16 | Evonik Operations GmbH | Verwendung von siliziumdioxid zur verbesserung der leitfähigkeit von beschichtungen |
| CN112642295B (zh) * | 2020-12-23 | 2022-05-27 | 中国科学院青海盐湖研究所 | 一种电渗析提纯系统及固相体系的提纯方法 |
| CN114659932B (zh) * | 2021-12-10 | 2026-03-03 | 安徽力普拉斯电源技术有限公司 | 胶体电池电解质密度的检测方法及其误差校正方法 |
| WO2023196233A1 (en) | 2022-04-08 | 2023-10-12 | United States Gypsum Company | Desalination of high chloride salt absorbed porous beads |
| US12390791B2 (en) | 2022-04-08 | 2025-08-19 | Knauf Gips Kg | Desalination of high chloride salt absorbed porous beads |
| CN118059681B (zh) * | 2024-04-11 | 2024-11-01 | 浙江尚辰化工有限公司 | 一种多组分增光剂除杂工艺方法 |
Family Cites Families (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2854316A (en) * | 1955-02-03 | 1958-09-30 | Columbia Southern Chem Corp | Process for purifying silica |
| GB815154A (en) * | 1956-02-20 | 1959-06-17 | Permutit Co Ltd | Improvements relating to electrodialysis processes |
| GB1115532A (en) * | 1964-10-19 | 1968-05-29 | Foremost Dairies Inc | Improvements in or relating to electrodialysis process and apparatus |
| US3661762A (en) * | 1967-12-27 | 1972-05-09 | Ionics | Electrolytic cell for removal and recovery of so2 from waste gases |
| US3523880A (en) * | 1967-12-27 | 1970-08-11 | Ionics | Electrolytic cell for removal and recovery of so2 from waste gases |
| US4094771A (en) | 1976-01-13 | 1978-06-13 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler | Process for preparation of a sprayable precipitated silicic acid suspension |
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| EP1559744A1 (en) * | 2004-01-30 | 2005-08-03 | Rhodia Chimie | Use of a pretreated precipitated silica as a reinforcing filler for silicone elastomer and curable compositions thus obtained |
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-
2009
- 2009-03-12 DE DE200910001512 patent/DE102009001512A1/de not_active Withdrawn
-
2010
- 2010-03-09 TW TW99106793A patent/TWI465397B/zh not_active IP Right Cessation
- 2010-03-11 CA CA2755058A patent/CA2755058A1/en not_active Abandoned
- 2010-03-11 WO PCT/EP2010/053098 patent/WO2010103068A1/en not_active Ceased
- 2010-03-11 RU RU2011141185/04A patent/RU2538594C2/ru not_active IP Right Cessation
- 2010-03-11 CN CN2010800115113A patent/CN102348493A/zh active Pending
- 2010-03-11 KR KR1020117020961A patent/KR20110137304A/ko not_active Abandoned
- 2010-03-11 BR BRPI1008938A patent/BRPI1008938A2/pt not_active IP Right Cessation
- 2010-03-11 EP EP10708529A patent/EP2405993A1/en not_active Withdrawn
- 2010-03-11 JP JP2011553454A patent/JP5479502B2/ja not_active Expired - Fee Related
- 2010-03-11 MX MX2011009262A patent/MX2011009262A/es not_active Application Discontinuation
- 2010-03-11 US US13/202,512 patent/US20110302849A1/en not_active Abandoned
-
2011
- 2011-09-09 ZA ZA2011/06627A patent/ZA201106627B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012520168A (ja) | 2012-09-06 |
| KR20110137304A (ko) | 2011-12-22 |
| CN102348493A (zh) | 2012-02-08 |
| BRPI1008938A2 (pt) | 2016-03-15 |
| WO2010103068A1 (en) | 2010-09-16 |
| TW201100328A (en) | 2011-01-01 |
| EP2405993A1 (en) | 2012-01-18 |
| TWI465397B (zh) | 2014-12-21 |
| ZA201106627B (en) | 2012-05-30 |
| RU2011141185A (ru) | 2013-04-20 |
| DE102009001512A1 (de) | 2010-09-16 |
| US20110302849A1 (en) | 2011-12-15 |
| RU2538594C2 (ru) | 2015-01-10 |
| MX2011009262A (es) | 2011-09-26 |
| JP5479502B2 (ja) | 2014-04-23 |
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| Date | Code | Title | Description |
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| FZDE | Discontinued |
Effective date: 20150311 |