WO2021084140A2 - Verfahren zur herstellung eines mit elementarem silber und elementarem ruthenium ausgestatteten partikelförmigen trägermaterials - Google Patents
Verfahren zur herstellung eines mit elementarem silber und elementarem ruthenium ausgestatteten partikelförmigen trägermaterials Download PDFInfo
- Publication number
- WO2021084140A2 WO2021084140A2 PCT/EP2021/054376 EP2021054376W WO2021084140A2 WO 2021084140 A2 WO2021084140 A2 WO 2021084140A2 EP 2021054376 W EP2021054376 W EP 2021054376W WO 2021084140 A2 WO2021084140 A2 WO 2021084140A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ruthenium
- silver
- aqueous solution
- elemental
- carrier material
- Prior art date
Links
- 229910052707 ruthenium Inorganic materials 0.000 title claims abstract description 84
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 81
- 239000004332 silver Substances 0.000 title claims abstract description 81
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 239000012876 carrier material Substances 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 87
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000000243 solution Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002243 precursor Substances 0.000 claims abstract description 28
- 238000005406 washing Methods 0.000 claims abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 76
- 238000000034 method Methods 0.000 claims description 43
- 239000011236 particulate material Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 27
- 239000000047 product Substances 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 150000003304 ruthenium compounds Chemical class 0.000 claims description 8
- 239000004793 Polystyrene Substances 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical class [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- -1 polysiloxane Polymers 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 230000000845 anti-microbial effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000002537 cosmetic Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- BPEVHDGLPIIAGH-UHFFFAOYSA-N ruthenium(3+) Chemical class [Ru+3] BPEVHDGLPIIAGH-UHFFFAOYSA-N 0.000 claims description 3
- 229940024463 silicone emollient and protective product Drugs 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 2
- 229920002522 Wood fibre Polymers 0.000 claims description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 239000011111 cardboard Substances 0.000 claims description 2
- 229920002301 cellulose acetate Polymers 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000000017 hydrogel Substances 0.000 claims description 2
- 239000003456 ion exchange resin Substances 0.000 claims description 2
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 239000000123 paper Substances 0.000 claims description 2
- 229920001568 phenolic resin Polymers 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 229920006255 plastic film Polymers 0.000 claims description 2
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 239000004626 polylactic acid Substances 0.000 claims description 2
- 229920000193 polymethacrylate Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- YAYGSLOSTXKUBW-UHFFFAOYSA-N ruthenium(2+) Chemical class [Ru+2] YAYGSLOSTXKUBW-UHFFFAOYSA-N 0.000 claims description 2
- 150000004760 silicates Chemical class 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 239000002025 wood fiber Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 20
- 239000002245 particle Substances 0.000 description 18
- 238000003756 stirring Methods 0.000 description 14
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000002105 nanoparticle Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- YLPJWCDYYXQCIP-UHFFFAOYSA-N nitroso nitrate;ruthenium Chemical compound [Ru].[O-][N+](=O)ON=O YLPJWCDYYXQCIP-UHFFFAOYSA-N 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- 229910001961 silver nitrate Inorganic materials 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 230000009969 flowable effect Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 150000004676 glycans Chemical class 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 3
- 239000011859 microparticle Substances 0.000 description 3
- 229910052762 osmium Inorganic materials 0.000 description 3
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229920001282 polysaccharide Polymers 0.000 description 3
- 239000005017 polysaccharide Substances 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- DNEHKUCSURWDGO-UHFFFAOYSA-N aluminum sodium Chemical compound [Na].[Al] DNEHKUCSURWDGO-UHFFFAOYSA-N 0.000 description 1
- BIVUUOPIAYRCAP-UHFFFAOYSA-N aminoazanium;chloride Chemical compound Cl.NN BIVUUOPIAYRCAP-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011496 digital image analysis Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- ZGCHATBSUIJLRL-UHFFFAOYSA-N hydrazine sulfate Chemical compound NN.OS(O)(=O)=O ZGCHATBSUIJLRL-UHFFFAOYSA-N 0.000 description 1
- 229910000377 hydrazine sulfate Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 235000021395 porridge Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- OJLCQGGSMYKWEK-UHFFFAOYSA-K ruthenium(3+);triacetate Chemical compound [Ru+3].CC([O-])=O.CC([O-])=O.CC([O-])=O OJLCQGGSMYKWEK-UHFFFAOYSA-K 0.000 description 1
- RADGOBKLTHEUQO-UHFFFAOYSA-N ruthenium(4+) Chemical class [Ru+4] RADGOBKLTHEUQO-UHFFFAOYSA-N 0.000 description 1
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 150000003378 silver Chemical class 0.000 description 1
- CQLFBEKRDQMJLZ-UHFFFAOYSA-M silver acetate Chemical compound [Ag+].CC([O-])=O CQLFBEKRDQMJLZ-UHFFFAOYSA-M 0.000 description 1
- 229940071536 silver acetate Drugs 0.000 description 1
- YPNVIBVEFVRZPJ-UHFFFAOYSA-L silver sulfate Chemical compound [Ag+].[Ag+].[O-]S([O-])(=O)=O YPNVIBVEFVRZPJ-UHFFFAOYSA-L 0.000 description 1
- 229910000367 silver sulfate Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/48—Coating with alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/18—Non-metallic particles coated with metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1635—Composition of the substrate
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1635—Composition of the substrate
- C23C18/1639—Substrates other than metallic, e.g. inorganic or organic or non-conductive
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1635—Composition of the substrate
- C23C18/1639—Substrates other than metallic, e.g. inorganic or organic or non-conductive
- C23C18/1641—Organic substrates, e.g. resin, plastic
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1655—Process features
- C23C18/1658—Process features with two steps starting with metal deposition followed by addition of reducing agent
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/42—Coating with noble metals
- C23C18/44—Coating with noble metals using reducing agents
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/52—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups C23C18/32 - C23C18/50
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/25—Noble metals, i.e. Ag Au, Ir, Os, Pd, Pt, Rh, Ru
- B22F2301/255—Silver or gold
Definitions
- the invention relates to an efficient process for the production of a particulate carrier material equipped with elemental silver and elemental ruthenium.
- WO 2007/139735 A2 discloses a method for producing nano / microparticles with a core-shell structure.
- the particles comprise a non-metallic core with a transition metal / noble metal shell.
- the transition metals / noble metals are selected from copper, nickel, silver, palladium, platinum, ruthenium, gold, osmium and rhodium.
- the production can be done by providing a
- Transition metal salt / noble metal salt solution dispersing nano / microparticles in the salt solution, evaporating the solvent to obtain a slurry comprising coated nano / microparticles, adding a reducing agent to the slurry, and drying the slurry.
- WO 2007/142579 A1 discloses a polymer matrix comprising an electron donor and metal particles comprising at least one metal selected from the group consisting of palladium, gold, ruthenium, rhodium, osmium, iridium and platinum.
- the electron donor can be at least one less noble metal, for example silver.
- the sequential deposition of silver and at least one further metal selected from the group consisting of palladium, gold, ruthenium, rhodium, osmium, iridium and platinum is disclosed as the production method. The deposition takes place in each case from a suspension of the metal particles in question by bringing them into contact with the polymer matrix.
- WO 2009/044146 A1 discloses a material comprising metallic nanoparticles with a diameter of 1 to 30 nm supported on a porous polysaccharide derivative.
- the metal of the nanoparticles can be a noble metal.
- the material can be produced by adding the porous polysaccharide to a solvent, adding a salt of the metal in question, stirring the mixture at an elevated temperature and separating the supported nanoparticles from the mixture.
- the object of the invention was to provide an efficient process, which can be scaled to a production scale, for the production of a particulate carrier material equipped with elemental silver and elemental ruthenium.
- Carrier materials equipped in this way can be used as additives for the antimicrobial finish of the most varied Materials are used, for example in or on metal surfaces, coating agents, plasters, molding compounds, plastics, synthetic resin products, silicone products, foams, textiles, cosmetics, hygiene articles and much more.
- the object can be achieved by a process for the production of a particulate support material equipped with elemental silver and elemental ruthenium, comprising the following steps: a) providing a water-insoluble particulate support material and (i) an aqueous solution A comprising dissolved silver precursors (for the sake of brevity below in the description and in the claims also only referred to as “aqueous solution A”) and an aqueous solution B comprising ruthenium precursor present in dissolved form (for the sake of brevity in the description and in the claims also referred to as “aqueous solution B” below) or ( ii) an aqueous solution comprising both dissolved silver precursors and dissolved ruthenium precursors (for the sake of brevity also referred to as “aqueous solution C” below in the description and in the claims), b) bringing the water-insoluble particulate carrier into contact materials (i) with the aqueous solution A and the aqueous solution B or preferably (ii)
- the method according to the invention can also be understood as a method for equipping a particulate carrier material with elemental silver and elemental ruthenium, comprising the successive steps a) to e).
- Steps a) to e) are successive steps, and they can be directly successive steps without intermediate steps.
- a water-insoluble particulate carrier material and (i) said aqueous solutions A and B or (ii) said aqueous solution C are provided.
- the particulate support material is in the solid state of aggregation.
- the carrier material particles can have a wide variety of particle shapes. For example, they can be irregularly shaped or they can have a defined shape, for example spherical, oval, platelet-shaped or rod-shaped.
- the carrier material particles can be porous and / or have cavities or neither. They can have a smooth or rough or textured outer surface.
- the carrier material particles can have an average particle size (d50), for example in the range from 20 to 100 ⁇ m.
- the term “mean particle size” means the mean particle diameter (d50) that can be determined by means of laser diffraction. Laser diffraction measurements can be carried out with a suitable particle size measuring device, for example a Mastersizer 3000 from Malvern Instruments.
- the absolute particle sizes generally do not fall below 1 pm and they generally do not exceed 1000 pm.
- the water-insoluble particulate carrier material has a more or less high water absorption capacity between the particles and optionally also within the particles, for example within pores and / or in depressions on the particle surface.
- the water-insoluble particulate carrier material can be swellable with water or even capable of forming a hydrogel.
- water-insoluble carrier material the actual water-insoluble carrier material is not only insensitive to water, but also to the chemicals which come into contact with it in the process according to the invention; otherwise it could in principle not successfully perform the function of a carrier material or that of a water-insoluble carrier material. It is selected in such a way that it is neither attacked, dissolved or impaired in its properties as a carrier material by water nor by said chemicals or chemical combinations.
- the water-insoluble actual carrier material as such is preferably a non-water-repellent material. It is preferably hydrophilic, but, as already mentioned, it is insoluble in water in any case.
- the actual carrier material can be a material selected from inorganic or organic substances or materials, each in particle form, for example as a powder.
- the carrier material is a silver and ruthenium-free material or a silver and ruthenium-free material.
- Examples include glass; Nitrides such as aluminum nitride, titanium nitride, silicon nitride; refractory oxides such as aluminum oxide, titanium dioxide, silicon dioxide, for example as silica or quartz; Silicates such as sodium aluminum silicate, zirconium silicate, zeolites; Plastics such as (meth) acrylic homo- and copolymers and polyamides; modified or unmodified polymers of natural origin such as, for example, polysaccharides and derivatives, in particular cellulose and cellulose derivatives; Carbon substrates, especially porous carbon substrates; and wood.
- Nitrides such as aluminum nitride, titanium nitride, silicon nitride
- refractory oxides such as aluminum oxide, titanium dioxide, silicon dioxide, for example as silica or quartz
- Silicates such as sodium aluminum silicate, zirconium silicate, zeolites
- Plastics such as (meth) acrylic homo- and copolymers and polyamides
- Cellulose powder is a preferred particulate carrier material, in particular in the form of linear cellulose fibers with a fiber length in the range from, for example, 10 to 1000 ⁇ m.
- the aqueous solution A provided in step a) (i) comprises dissolved silver precursors and the aqueous solution B likewise provided in step a) (i) comprises dissolved ruthenium precursors.
- aqueous solution A is a solution and not a disperse system; In other words, the aqueous solution A typically does not contain any undissolved substances, i.e. also no precipitates or deposits.
- the aqueous solution A is characterized in that, in addition to water as a solvent, it also includes one or more silver (I) compounds dissolved therein.
- the silver (l) compounds as well as any substances that are intentionally or unintentionally present in the aqueous solution A are typically selected in such a way that the aqueous solution A as such and preferably also when combined or in contact with the aqueous solution B does not contain or precipitate. that it does not come to the formation of such.
- aqueous solution B is a solution and not a disperse system; in other words, the aqueous solution B typically does not contain any undissolved substances, ie also no precipitates or deposits.
- the aqueous solution B is distinguished by the fact that, in addition to water as a solvent, it also includes one or more ruthenium compounds dissolved therein.
- the ruthenium compounds as well as any intentionally or unintentionally present in the aqueous solution B substances are typically selected so that the aqueous solution B as such and preferably also in the case of combination or contact with the aqueous solution A does not have any precipitates or precipitates or that such does not form.
- the aqueous solution C preferably provided in step a) (ii) comprises both dissolved silver precursors and dissolved ruthenium precursors.
- aqueous solution C it is a solution and not a disperse system; In other words, the aqueous solution C does not contain any undissolved substances, i.e. also no precipitates or deposits.
- the aqueous solution C is characterized in that, in addition to water as a solvent, it also includes one or more silver (I) compounds dissolved therein and one or more ruthenium compounds dissolved therein.
- the silver (I) compounds and the ruthenium compounds as well as any intentionally or unintentionally present substances in the aqueous solution C are selected in such a way that the aqueous solution C has no precipitates or precipitates or that they do not form.
- Silver precursors and ruthenium precursors are one or more silver (I) compounds and one or more ruthenium compounds.
- the one or more ruthenium compounds are selected from the group consisting of ruthenium (II) compounds, ruthenium (III) compounds and ruthenium (IV) compounds; in particular, they are ruthenium (III) compounds.
- the silver (I) and ruthenium compounds serving as silver precursors and ruthenium precursors are those from which elemental silver or elemental ruthenium can be produced by means of the reducing agent hydrazine.
- Examples include silver acetate, silver nitrate, silver sulfate, ruthenium acetate and ruthenium nitrosyl nitrate.
- Ruthenium chloride is suitable as a constituent of aqueous solution B, but is not preferred there either; it is not suitable as a component of the aqueous solution C.
- a particularly preferred combination of said precursors is that of silver nitrate with ruthenium nitrosyl nitrate, both together in the aqueous solution C and in the combination of the aqueous solution A with the aqueous solution B.
- aqueous solutions A and B are used in combination in step b), within this combination, for example, in a weight ratio in the range from 1 to 2000 parts by weight of silver: 1 part by weight of ruthenium.
- the proportion by weight of silver in the aqueous solution A is, for example, in the range from 0.5 to 20% by weight (% by weight).
- the proportion by weight of ruthenium in the aqueous solution B is, for example, in the range from 0.5 to 20% by weight.
- the silver: ruthenium weight ratio in the aqueous solution C is, for example, in the range from 1 to 2000 parts by weight of silver: 1 part by weight of ruthenium and is generally clearly in favor of silver.
- This silver: ruthenium weight ratio is also found in the process product obtained after the end of step e), i.e. the particulate carrier material equipped with elemental silver and elemental ruthenium.
- the silver plus ruthenium weight fraction in the aqueous solution C is, for example, in the range from 0.5 to 20% by weight.
- step b) of the process according to the invention the water-insoluble particulate carrier material and (i) the aqueous solutions A and B or preferably (ii) the aqueous solution C are in contact with one another to form an intermediate, preferably an intermediate in the form of a free-flowing impregnated particulate material brought.
- the intermediate is a mixture of the water-insoluble particulate carrier material and (i) the aqueous solutions A and B or preferably (ii) the aqueous solution C.
- the intermediate can have different shapes, for example that of a pulpy, pasty or dough-like mass or that of a slurry.
- the intermediate is a free-flowing impregnated particulate material and step b) is designed accordingly.
- free-flowing impregnated particulate material used herein describes a material in the form (i) with the aqueous solutions A and B or preferably (ii) with the aqueous solution C impregnated grains or flakes, which each have one or more particles of the original particulate Include carrier material or can consist of it.
- the free-flowing impregnated particulate material is not liquid, it is not a liquid dispersion or suspension; rather, it is a free-flowing material of the type of free-flowing powder.
- a cylindrical measuring drum can be filled with a defined volume of the free-flowing impregnated particulate material.
- the measuring drum has a defined diameter and a defined depth.
- the measuring drum rotates around the horizontally oriented cylinder axis at a defined constant speed.
- One of the two end faces of the cylinder, which together enclose the filled, free-flowing, impregnated particulate material in the cylindrical measuring drum, is transparent. Before starting the measurement, the measuring drum is rotated for 60 seconds.
- recordings of the free-flowing impregnated particulate material are then made along the axis of rotation of the measuring drum with a camera at a high frame rate of, for example, 5 to 15 frames per second.
- the camera parameters can be selected in such a way that the highest possible contrast is achieved at the material-air interface.
- the free-flowing impregnated particulate material is dragged along against gravity up to a certain height before it flows back into the lower part of the drum.
- the flow back is slippery (discontinuous) and is also known as an avalanche.
- a measurement is ended when a statistically relevant number of avalanches, for example 200 to 400 avalanches, has been registered.
- the camera images of the free-flowing impregnated particulate material are then evaluated by means of digital image analysis.
- the so-called avalanche angle and the duration between two avalanches can be determined as parameters characteristic of the free flowability.
- the avalanche angle is the angle of the material surface when the avalanche breaks out and thus represents a measure of the height of the pile of the free-flowing impregnated particulate material before this pile collapses like an avalanche.
- the length of time between two avalanches corresponds to the time that elapses between the occurrence of two avalanches.
- the Revolution Powder Analyzer from PS Rothtechnik GmbH, Neuhausstrasse 36, CH-4057 Basel, is a suitable tool for carrying out said rotation powder analysis and for determining the avalanche angle and time between two avalanches. It is advisable to follow the operating instructions and recommendations enclosed with the device. The measurement is usually carried out at room temperature or 20 ° C.
- Impregnated particulate material can have an avalanche angle determined on the basis of a 100 mL test amount thereof with this device at 0.5 revolutions per minute and using a cylinder with an internal depth of 35 mm and an internal diameter of 100 mm, for example in the range of 40 to 80 degrees exhibit; the time between two avalanches can for example be in the range of 2 to 5 seconds and represent a further characterization feature for the free flowability of the free flowable impregnated particulate material.
- the particulate carrier material can be added to aqueous solution A and / or to aqueous solution B, or vice versa.
- the sequential, alternating or simultaneous addition of the aqueous solutions A and B to the initially introduced particulate carrier material is preferred.
- the mixture is mixed during and also after the addition, for example by stirring.
- the particulate carrier material can be added to the aqueous solution C or vice versa. Preference is given to adding the aqueous solution C to the particulate carrier material initially charged. In general, the mixture is mixed during and also after the addition, for example by stirring.
- step b) it is important to proceed in step b) in such a way that after the end of step b) no pasty or dough-like mass or slurry is obtained, but rather precisely the free-flowing impregnated particulate material is formed in the form of a macroscopically homogeneous product.
- the free flowability of the free flowable impregnated particulate material can be dependent, for example, on its grain size, the surface properties of its particles and the content of the latter in aqueous solution A plus aqueous solution B or aqueous solution C.
- step b it is expedient to allow the mixing of the particulate carrier material and (i) aqueous solution A and aqueous solution B or (ii) aqueous solution C sufficient time.
- the mixing is expediently carried out up to the aforementioned Macroscopically, a more homogeneous, in particular visually homogeneous, state of the mixed material is achieved.
- the actual addition can take place, for example, as metering in with mixing. Generally applicable times for metering rates and mixing times cannot be given here because of the dependence on the respective batch size and the type of components to be mixed, in particular the type of particulate carrier material.
- the volume of (i) the aqueous solution A and the aqueous solution B or (ii) the aqueous solution C can be determined via the respective concentration, the amount of the particulate carrier material to be brought into contact therewith and its absorption behavior for the aqueous
- Solution (s) can be chosen accordingly.
- Such a procedure can contribute to the fact that the elemental silver and the elemental ruthenium can be deposited as completely as possible in and / or on the particulate carrier material in the following step c).
- the volume chosen is too large or the volumes chosen are too large, the aforementioned less preferred or even undesirable porridges, doughs, pastes or slurries and not the intermediate in the preferred form of the free-flowing impregnated particulate material arise.
- the person skilled in the art can easily determine the absorption behavior of a particular particulate carrier material for a relevant aqueous solution in orienting laboratory tests and thus determine the upper limit in liters of aqueous solution per kilogram of particulate carrier material without loss of free flowability.
- the successive steps b) and c) are preferably directly successive steps without intermediate steps, in particular without an intermediate removal of water from the intermediate, which is preferably in the form of the free-flowing impregnated particulate material.
- step c) of the process according to the invention the intermediate obtained after the end of step b) or the preferred free-flowing impregnated particulate material is mixed with an aqueous hydrazine having a pH in the range from> 7 to 14, preferably from> 11 to 14 Solution (for the sake of brevity in the Description and in the claims also only referred to as “aqueous hydrazine solution”) brought into contact with the formation of a mass comprising elemental silver and elemental ruthenium.
- aqueous hydrazine solution for the sake of brevity in the Description and in the claims also only referred to as “aqueous hydrazine solution” brought into contact with the formation of a mass comprising elemental silver and elemental ruthenium.
- the pH of the aqueous hydrazine solution is particularly preferably in the range from 12 to 14.
- the basic pH of the aqueous hydrazine solution can be adjusted with a strong base, in particular with a corresponding amount of alkali hydroxide, especially sodium or potassium hydroxide.
- the hydrazine can be added as such, more precisely as hydrazine hydrate when preparing the aqueous hydrazine solution, or as a hydrazinium salt, for example as hydrazinium chloride or preferably as hydrazinium sulfate, from which hydrazine is released with the strong base.
- the hydrazine concentration of the aqueous hydrazine solution is generally, for example, in the range from 0.1 to 5% by weight, typically in the range from 0.2 to 1% by weight.
- the aqueous hydrazine solution does not contain any other ingredients besides water, hydrazine and base. If the hydrazine comes from a hydrazinium salt, the corresponding salt formed from base and hydrazinium salt is also included.
- 1 mol of the reducing agent hydrazine can provide 4 mol of reducing electrons and accordingly releases 1 mol of N2 during a reduction. Accordingly, for example, to reduce 1 mol of Ag + 0.25 mol of hydrazine and to reduce 1 mol of Ru 3+, 0.75 mol of hydrazine is required.
- the aqueous hydrazine solution is stoichiometrically necessary for the complete reduction of the silver and ruthenium precursors contained in the intermediate or in the free-flowing impregnated particulate material or more, but preferably in not more than 110% of the stoichiometrically necessary amount, with the intermediate or with the free brought flowable impregnated particulate material into contact.
- the aqueous hydrazine solution can be added to the intermediate or to the free-flowing impregnated particulate material, or vice versa.
- the addition can take place at a temperature in the range from 15 to 50 ° C., for example.
- the reduction of the silver and ruthenium precursors to elemental silver and elemental ruthenium takes place immediately upon contact with the hydrazine.
- the reduction of the silver and ruthenium precursors takes place at the same time.
- mixing is usually carried out, for example by kneading and / or stirring.
- the end of the reduction can be recognized by the failure to release nitrogen.
- the mass comprising elemental silver and elemental ruthenium formed in step c) is a suspension or a slurry.
- the mass comprising elemental silver and elemental ruthenium formed in step c) comprises only a little free liquid or is even free of free liquid;
- a volume of the aqueous hydrazine solution adapted via the concentration can be used for this purpose.
- Free of free liquid means that the mass comprising elemental silver and elemental ruthenium does not phase separate even after 10 minutes in the sense of a separate aqueous phase forming as a supernatant above the mass comprising elemental silver and elemental ruthenium.
- step d) of the process according to the invention the material comprising elemental silver and elemental ruthenium obtained after the end of step c) can be washed, in particular by washing with water.
- Water-soluble constituents can be removed, for example base, optionally excess hydrazine and other water-soluble constituents.
- step e) of the process according to the invention water and any other volatile constituents present are removed from the mass obtained after the end of step c) or from the washed mass obtained after the end of step d).
- the removal of the water can take place in the sense of a practically complete liberation of water or in the sense of water removal until a desired residual moisture content is reached.
- the majority of the water can initially act using conventional methods such as squeezing, press filtration, suction filtration, centrifugation or similar Process can be removed before drying, optionally assisted by reduced pressure, at temperatures in the range from 20 to 150 ° C., for example.
- the direct product of the process according to the invention is a particulate material or carrier material equipped with elemental silver and elemental ruthenium.
- the silver and ruthenium can be present on inner surfaces (within pores and / or cavities) and / or on the outer surface of the carrier material particles originally free of silver and ruthenium, and for example a continuous or discontinuous layer and / or form small silver or ruthenium particles.
- the silver and the ruthenium are not alloyed, but are statistically distributed.
- the silver and the ruthenium on its surface can comprise other silver species than elemental metallic silver and other ruthenium species than elemental metallic ruthenium, for example corresponding oxides, halides and / or sulfides. Such species can be formed while the process according to the invention is being carried out or subsequently, for example during storage, use or further processing of the process product.
- the silver plus ruthenium weight fraction of the process product can vary within wide limits, for example in the range from 0.1 to 50, preferably 1 to 40% by weight and the process product can at the same time have a silver: ruthenium weight ratio, for example in the range of 1 to 2000 parts by weight of silver: 1 part by weight of ruthenium.
- variable parameters include in particular:
- the first step for the person skilled in the art will therefore initially be the selection of the type of particulate carrier material and the establishment of target values for the silver and ruthenium content in the end product.
- the person skilled in the art will then determine the batch size and select a corresponding amount of particulate carrier material which, according to the procedure according to the invention, is to be provided with elemental silver and elemental ruthenium.
- he can set the other variable parameters accordingly and carry out the method according to the invention with the aqueous solution C.
- analogous considerations apply.
- cellulose powder equipped with elemental silver and elemental ruthenium with a silver-plus-ruthenium weight fraction, for example in the range from 0.1 to 50, preferably 1 to 40% by weight
- a silver: ruthenium weight ratio for example in the range from 1 to 2000 parts by weight of silver: 1 part by weight of ruthenium, can be produced efficiently and in batch sizes of up to 5 tons, for example.
- the invention also relates to the products produced by the process according to the invention and their use as additives for the antimicrobial finishing of metal surfaces; Coating agents; Cleaning; Molding compounds; Plastics in the form of plastic films, plastic parts or plastic fibers; Synthetic resin products; ion exchange resins; Silicone products; Cellulose-based products; Foams; Textiles; Cosmetics; Hygiene articles and much more.
- the cellulose-based products can, for example, be selected from the group consisting of paper products, cardboard, wood fiber products and cellulose acetate
- the plastics can be selected, for example, from the group consisting of ABS plastic, PVC (polyvinyl chloride), polylactic acid, PU (polyurethane ), Poly (meth) acrylate, PC (polycarbonate), polysiloxane, phenol-formaldehyde resin, melamine-formaldehyde resin, polyester, polyamide, polyether, polyolefin, polystyrene, hybrid polymers thereof and mixtures thereof.
- Embodiment 1 production of a cellulose powder equipped with 18.3% by weight of elemental silver and 0.2% by weight of elemental ruthenium:
- aqueous silver nitrate solution (silver content 36.24% by weight; 445 mmol Ag) and 2.60 g aqueous ruthenium nitrosyl nitrate solution (ruthenium content 19.0% by weight; 4.9 mmol Ru) were in 364.5 g of deionized water were added and the aqueous precursor solution thus obtained was mixed homogeneously with 211.2 g of cellulose powder (Vitacel® L-600 from J.Rettenmaier and Sons GmbH & Co KG) to form an orange-colored, free-flowing impregnated particulate material. 100 ml of this material were subjected to a rotary powder analysis at 20 ° C.
- Embodiment 2 production of a cellulose powder equipped with 10.9% by weight of elemental silver and 0.2% by weight of elemental ruthenium:
- the material was then suction filtered, washed with a total of 1000 ml of water and dried in a drying cabinet at 105 ° C./300 mbar to a residual moisture content of 15% by weight.
- a silver content of 10.88% by weight and a ruthenium content of 0.21% by weight of the end product (based on 0% by weight of residual moisture) were determined by means of ICP-OES.
- Embodiment 3 production of a cellulose powder equipped with 18.9% by weight of elemental silver and 1.0% by weight of elemental ruthenium:
- the material was then filtered off with suction, washed with a total of 1000 ml of water and dried in a drying cabinet at 105 ° C./300 mbar to a residual moisture content of 15% by weight.
- a silver content of 18.9% by weight and a ruthenium content of 1.0% by weight of the end product (based on 0% by weight of residual moisture) were determined by means of ICP-OES.
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Catalysts (AREA)
- Glanulating (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2023519895A JP2023544152A (ja) | 2020-10-28 | 2021-02-23 | 単体銀及び単体ルテニウムを有する粒子状担体材料を製造するための方法 |
CN202180065490.1A CN116194619A (zh) | 2020-10-28 | 2021-02-23 | 用于生产提供有元素银和元素钌的颗粒状载体材料的方法 |
US18/250,000 US20230392263A1 (en) | 2020-10-28 | 2021-02-23 | Method for producing a particulate carrier material provided with elementary silver and elementary ruthenium |
EP21706295.9A EP4237596A2 (de) | 2020-10-28 | 2021-02-23 | Verfahren zur herstellung eines mit elementarem silber und elementarem ruthenium ausgestatteten partikelförmigen trägermaterials |
KR1020237010597A KR20230057456A (ko) | 2020-10-28 | 2021-02-23 | 원소 은 및 원소 루테늄이 제공된 미립자 담체 재료를 제조하는 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20204367.5A EP3825440A1 (de) | 2020-10-28 | 2020-10-28 | Verfahren zur herstellung eines mit elementarem silber und elementarem ruthenium ausgestatteten partikelförmigen trägermaterials |
EP20204367.5 | 2020-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2021084140A2 true WO2021084140A2 (de) | 2021-05-06 |
WO2021084140A3 WO2021084140A3 (de) | 2021-08-19 |
Family
ID=73288347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/054376 WO2021084140A2 (de) | 2020-10-28 | 2021-02-23 | Verfahren zur herstellung eines mit elementarem silber und elementarem ruthenium ausgestatteten partikelförmigen trägermaterials |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230392263A1 (de) |
EP (2) | EP3825440A1 (de) |
JP (1) | JP2023544152A (de) |
KR (1) | KR20230057456A (de) |
CN (1) | CN116194619A (de) |
WO (1) | WO2021084140A2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4165990A1 (de) | 2021-10-18 | 2023-04-19 | STO SE & Co. KGaA | Lagerstabile beschichtungszusammensetzung |
WO2023094038A1 (de) | 2021-11-26 | 2023-06-01 | Heraeus Deutschland GmbH & Co. KG | Partikuläres material |
WO2023160837A1 (de) | 2022-02-28 | 2023-08-31 | Heraeus Deutschland GmbH & Co. KG | Mit elementarem silber und elementarem ruthenium ausgestattetes partikelförmiges kohlenstoffmaterial |
EP4257726A1 (de) | 2022-04-06 | 2023-10-11 | Heraeus Deutschland GmbH & Co. KG | Mit elementarem silber und elementarem ruthenium ausgestattetes partikelförmiges anorganisches material |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4368313A1 (de) * | 2022-11-11 | 2024-05-15 | Heraeus Precious Metals GmbH & Co. KG | Ungeträgertes bimetallisches partikelförmiges material |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007139735A2 (en) | 2006-05-22 | 2007-12-06 | Nanomech, Llc | Non-metallic nano/micro particles coated with metal, process and applications thereof |
WO2007142579A1 (en) | 2006-06-05 | 2007-12-13 | Bactiguard Ab | A polymer matrix, uses thereof and a method of manufacturing the same |
WO2009044146A1 (en) | 2007-10-02 | 2009-04-09 | University Of York | Metal nanoparticles |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101738213B1 (ko) * | 2014-06-11 | 2017-05-19 | 주식회사 엘지화학 | 코어-쉘 금속 입자의 제조방법 및 이에 따라 제조한 코어-쉘 금속 입자 |
-
2020
- 2020-10-28 EP EP20204367.5A patent/EP3825440A1/de not_active Withdrawn
-
2021
- 2021-02-23 CN CN202180065490.1A patent/CN116194619A/zh active Pending
- 2021-02-23 WO PCT/EP2021/054376 patent/WO2021084140A2/de active Application Filing
- 2021-02-23 EP EP21706295.9A patent/EP4237596A2/de active Pending
- 2021-02-23 US US18/250,000 patent/US20230392263A1/en active Pending
- 2021-02-23 JP JP2023519895A patent/JP2023544152A/ja active Pending
- 2021-02-23 KR KR1020237010597A patent/KR20230057456A/ko unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007139735A2 (en) | 2006-05-22 | 2007-12-06 | Nanomech, Llc | Non-metallic nano/micro particles coated with metal, process and applications thereof |
WO2007142579A1 (en) | 2006-06-05 | 2007-12-13 | Bactiguard Ab | A polymer matrix, uses thereof and a method of manufacturing the same |
WO2009044146A1 (en) | 2007-10-02 | 2009-04-09 | University Of York | Metal nanoparticles |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4165990A1 (de) | 2021-10-18 | 2023-04-19 | STO SE & Co. KGaA | Lagerstabile beschichtungszusammensetzung |
DE102021005176A1 (de) | 2021-10-18 | 2023-04-20 | Sto Se & Co. Kgaa | Lagerstabile Beschichtungszusammensetzung |
WO2023094038A1 (de) | 2021-11-26 | 2023-06-01 | Heraeus Deutschland GmbH & Co. KG | Partikuläres material |
WO2023160837A1 (de) | 2022-02-28 | 2023-08-31 | Heraeus Deutschland GmbH & Co. KG | Mit elementarem silber und elementarem ruthenium ausgestattetes partikelförmiges kohlenstoffmaterial |
EP4257726A1 (de) | 2022-04-06 | 2023-10-11 | Heraeus Deutschland GmbH & Co. KG | Mit elementarem silber und elementarem ruthenium ausgestattetes partikelförmiges anorganisches material |
WO2023193974A1 (de) | 2022-04-06 | 2023-10-12 | Heraeus Deutschland GmbH & Co. KG | Mit elementarem silber und elementarem ruthenium ausgestattetes partikelförmiges anorganisches material |
EP4353869A2 (de) | 2022-04-06 | 2024-04-17 | Heraeus Precious Metals GmbH & Co. KG | Mit elementarem silber und elementarem ruthenium ausgestattetes partikelförmiges anorganisches material |
EP4353869A3 (de) * | 2022-04-06 | 2024-08-28 | Heraeus Precious Metals GmbH & Co. KG | Mit elementarem silber und elementarem ruthenium ausgestattetes partikelförmiges anorganisches material |
Also Published As
Publication number | Publication date |
---|---|
WO2021084140A3 (de) | 2021-08-19 |
KR20230057456A (ko) | 2023-04-28 |
EP3825440A1 (de) | 2021-05-26 |
JP2023544152A (ja) | 2023-10-20 |
US20230392263A1 (en) | 2023-12-07 |
CN116194619A (zh) | 2023-05-30 |
EP4237596A2 (de) | 2023-09-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP4237596A2 (de) | Verfahren zur herstellung eines mit elementarem silber und elementarem ruthenium ausgestatteten partikelförmigen trägermaterials | |
DE112004001403T5 (de) | Feinpartikuläres Silberpulver und Verfahren zu dessen Herstellung | |
DE112004001399T5 (de) | Feinpartikuläres Silberpulver und Verfahren zu dessen Herstellung | |
EP2651593B1 (de) | Verfahren zur herstellung von mikro-nanokombinierten wirksystemen | |
EP2140958B1 (de) | Verfahren zur Herstellung von Metallnanopartikeldispersionen | |
EP1537170A1 (de) | Verrundetes kunststoffpulver, insbesondere zur verwendung beim lasersintern, verfahren zur herstellung eines solchen pulvers und lasersinterverfahren, das ein solches pulver verwendet | |
WO2009115506A2 (de) | Mit derivatisierten polyethyleniminen oder polyvinylaminen stabilisierte metall-nanopartikel | |
DE1519848B2 (de) | Verfahren zur Herstellung von Mikro kapseln | |
DE112006000028T5 (de) | Verfahren zur Herstellung von Kompositpartikeln | |
EP2896661A1 (de) | Pulverlack in partikulärer und ausgehärteter Form mit Effektpigmenten sowie Verfahren zur Herstellung von Pulverlack mit Effektpigmenten | |
EP2391657A1 (de) | Verfahren zur herstellung von mit polymeren umhüllten metallhaltigen nanopartikeln und daraus erhältliche partikel | |
US5895795A (en) | Composition containing fine solid particles | |
DE2941448A1 (de) | Verfahren zum herstellen von mit edelmetall ueberzogenem verbundpulver | |
DE10297803T5 (de) | Granuliertes Kupferoxid für anwuchsverhindernde Beschichtungen | |
DE2139646C3 (de) | Verfahren zur Herstellung einer mikroporösen Scheidewand | |
EP3900083A1 (de) | Beschichtetes pulvriges bleioxid, ein verfahren zu dessen herstellung und verwendungen | |
DE112015001175T5 (de) | Verfahren zum Herstellen eines Perlglanzpigments und dessen Anwendung | |
DE2154108C3 (de) | Verfahren zur Herstellung von Goldpulver | |
WO2023094038A1 (de) | Partikuläres material | |
JP6184398B2 (ja) | 改質処理水の評価方法 | |
DE2161858C3 (de) | Verfahren zur Herstellung von ggf. mit Füllstoffen versehenen rieselfähigen Polytetrafluoräthylen-Formpulvern | |
DE3826153A1 (de) | Verfahren und vorrichtung zum herstellen einer elektrode fuer eine batterie | |
EP3426735A1 (de) | Verfahren zur herstellung einer tinte, tinte und deren verwendung | |
DE2231710A1 (de) | Mattlack | |
DE2340176A1 (de) | Ultrafiltrationsmembrane und verfahren zu deren herstellung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21706295 Country of ref document: EP Kind code of ref document: A2 |
|
ENP | Entry into the national phase |
Ref document number: 20237010597 Country of ref document: KR Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2023519895 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18250000 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021706295 Country of ref document: EP Effective date: 20230530 |