NO772817L - PROCEDURES FOR CLEANING ITEMS AFTER GALVANIC AND / OR CHEMICAL SURFACE TREATMENT - Google Patents
PROCEDURES FOR CLEANING ITEMS AFTER GALVANIC AND / OR CHEMICAL SURFACE TREATMENTInfo
- Publication number
- NO772817L NO772817L NO772817A NO772817A NO772817L NO 772817 L NO772817 L NO 772817L NO 772817 A NO772817 A NO 772817A NO 772817 A NO772817 A NO 772817A NO 772817 L NO772817 L NO 772817L
- Authority
- NO
- Norway
- Prior art keywords
- solvent
- surface treatment
- objects
- wetting agent
- agent
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 42
- 238000004140 cleaning Methods 0.000 title claims description 21
- 239000000126 substance Substances 0.000 title claims description 18
- 238000004381 surface treatment Methods 0.000 title claims description 12
- 239000002904 solvent Substances 0.000 claims description 39
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 20
- 239000000080 wetting agent Substances 0.000 claims description 20
- 238000011010 flushing procedure Methods 0.000 claims description 17
- 239000012756 surface treatment agent Substances 0.000 claims description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 238000011282 treatment Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 7
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- -1 halogen hydrocarbon Chemical class 0.000 claims description 5
- 229920000151 polyglycol Polymers 0.000 claims description 5
- 239000010695 polyglycol Substances 0.000 claims description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 231100000252 nontoxic Toxicity 0.000 claims description 3
- 230000003000 nontoxic effect Effects 0.000 claims description 3
- 229920001451 polypropylene glycol Polymers 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 159000000000 sodium salts Chemical class 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- FPVVYTCTZKCSOJ-UHFFFAOYSA-N Ethylene glycol distearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCCOC(=O)CCCCCCCCCCCCCCCCC FPVVYTCTZKCSOJ-UHFFFAOYSA-N 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000008346 aqueous phase Substances 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000005827 chlorofluoro hydrocarbons Chemical class 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229940100608 glycol distearate Drugs 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 239000011133 lead Substances 0.000 claims description 2
- WFRUBUQWJYMMRQ-UHFFFAOYSA-M potassium;1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate Chemical compound [K+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WFRUBUQWJYMMRQ-UHFFFAOYSA-M 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- SRAWNDFHGTVUNZ-UHFFFAOYSA-M sodium;3,6-dibutylnaphthalene-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC(CCCC)=CC2=CC(CCCC)=CC=C21 SRAWNDFHGTVUNZ-UHFFFAOYSA-M 0.000 claims description 2
- 239000011135 tin Substances 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims 1
- WXQWKYFPCLREEY-UHFFFAOYSA-N azane;ethanol Chemical compound N.CCO.CCO.CCO WXQWKYFPCLREEY-UHFFFAOYSA-N 0.000 claims 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003906 humectant Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004909 Moisturizer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 230000001333 moisturizer Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- ZXUJWPHOPHHZLR-UHFFFAOYSA-N 1,1,1-trichloro-2-fluoroethane Chemical compound FCC(Cl)(Cl)Cl ZXUJWPHOPHHZLR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- HJTOASDACWFYMY-UHFFFAOYSA-M O=S(C(C(C(C(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(NC(C(C([N+](C(F)(F)F)(C(F)(F)F)C(F)(F)F)(F)F)(F)F)(F)F)=O.[I-] Chemical compound O=S(C(C(C(C(C(C(C(C(F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(F)F)(NC(C(C([N+](C(F)(F)F)(C(F)(F)F)C(F)(F)F)(F)F)(F)F)(F)F)=O.[I-] HJTOASDACWFYMY-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- YFSUTJLHUFNCNZ-UHFFFAOYSA-N perfluorooctane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-N 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000002023 wood Substances 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/08—Rinsing
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Detergent Compositions (AREA)
- Electroplating Methods And Accessories (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Materials For Photolithography (AREA)
- Chemically Coating (AREA)
- Chemical Treatment Of Metals (AREA)
Description
Fremgangsmåte ved rengjoring av gjenstander efter galvanisk og/eller kjemisk overflatebehandling Procedure for cleaning objects after galvanic and/or chemical surface treatment
Foreliggende oppfinnelse angår en fremgangsmåte ved rengjør-ing av gjenstander efter galvanisk og/eller kjemisk overflatebehandling for vedheftende vandige overflatebehandlingsmidler, fortrinnsvis for å gjenvinne de deri inneholdte verdifulle stoffer. The present invention relates to a method for cleaning objects after galvanic and/or chemical surface treatment for adhering aqueous surface treatment agents, preferably to recover the valuable substances contained therein.
Fremgangsmåte til spyling av galvanisk eller kjemisk behandling av gjenstander i den hensikt å rengjøre dem for etter-følgende viderebehandling er kjent. Det til dette formål uteluk-kende anvendte behandlingsmiddel var vann.. Procedures for flushing galvanic or chemical treatment of objects with the intention of cleaning them for subsequent further processing are known. The only treatment agent used for this purpose was water.
Disse fremgangsmåter har imidlertid den ulempe at de arbeider med relativt store tap av de i overflatebehandlingsmidlene inne-, holdte verdifulle stoffer. However, these methods have the disadvantage that they work with relatively large losses of the valuable substances contained in the surface treatment agents.
Store anstrengelser har derfor vært gjort for å forhindre disse tap av verdifulle metaller, og andre behandlingsstoffer av økonomiske grunner og nettopp i den senere tid også av miljøvern-grunner. Great efforts have therefore been made to prevent these losses of valuable metals and other treatment substances for economic reasons and, more recently, also for environmental protection reasons.
Således kan en minimerisering av spylevannsmengden oppnåes ved■den kjente fremgangsmåte, den såkalte sprøytespyling, og anvendelsen av f lergangskaskader . Dessuten h,ar også fordunstnings-henholdsvis , fordampningsmetoder funnet anvendelse. Thus, a minimization of the amount of flushing water can be achieved by the known method, the so-called spray flushing, and the use of multiple cascades. In addition, evaporation, respectively, evaporation methods have also found application.
En . i større omfang i galvanikken, elokserings-, fosfaterings-og beiseanlegg anvendt teknikk er dessuten gjenvinningen av spyle-vannet ved ioneutbytteanlegg, som arbeider 1 kretsløp. One. to a greater extent in galvanic, anodizing, phosphating and pickling plants, the technique used is also the recycling of the flushing water by ion exchange plants, which work in 1 circuit.
Alle disse fremgangsmåter gir imidlertid intet tilfredsstillende resultat. However, all these methods do not give satisfactory results.
Således lar der seg efter den førstnevnte metode først ved Thus, following the first-mentioned method, wood is allowed first
hjelp av en adskilt kostbar spillvannbehandling og kjemisk felning av hydroxydslam gjøre å gjenvinne de metalliske verdifulle stoffer relativt rent. Fordampnings- og fordunstningsmetodene er på ufor- with the help of a separate, expensive waste water treatment and chemical precipitation of hydroxide sludge, it is possible to recover the metallic valuable substances relatively cleanly. The evaporation and evaporation methods are on
delaktig vis beheftet med særlig høye energiomkostninger. ' Ionebytte-anleggene gir nøytralsalt-biprodukter som belaster spillvannene miljøfintlig. partially burdened with particularly high energy costs. ' The ion-exchange plants produce neutral salt by-products that pollute the waste water in an environmentally unfriendly way.
Generelt kan.dessuten sies at ingen av de kjente metoder tillater en endog tilnærmet kvantitativ gjenvinning av de verdifulle stoffer. In general, it can also be said that none of the known methods allow an even approximate quantitative recovery of the valuable substances.
Oppgaven ved foreliggende oppfinnelse er derfor å fremskaffe en fremgangsmåte som tillater såvel en fullstendig rengjøring av gjenstandene efter utført overflatebehandling av den nevnte type, som en kvantitativ teknisk enkel gjenvinning av de fra behandlingen av gjenstandene vedheftende verdifulle stoffer. The task of the present invention is therefore to provide a method which allows both a complete cleaning of the objects after surface treatment of the aforementioned type, as well as a quantitative, technically simple recovery of the valuable substances adhering to the objects from the treatment.
Denne oppgave løses ifølge oppfinnelsen ved en fremgangsmåte som kjennetegnes.ved at gjenstandene behandles med et med vann ikke blandbart flytende oppløsningsmiddel, som oppviser en høyere eller lavere spesifikk vekt enn det vandige overflatebehandlingsmiddel. According to the invention, this task is solved by a method characterized by the fact that the objects are treated with a water-immiscible liquid solvent, which has a higher or lower specific gravity than the aqueous surface treatment agent.
Fordelaktige utførelsesformer av denne fremgangsmåte består dessuten -i, a) at der anvendes et oppløsningsmiddel som har .en spesifikk vekt på mer enn 1,25 eller mindre enn 0,75 p/cm 3, Advantageous embodiments of this method also consist -in, a) that a solvent is used which has a specific gravity of more than 1.25 or less than 0.75 p/cm 3,
b) at der anvendes et oppløsningsmiddel som ikke er brennbart,b) that a solvent that is not flammable is used,
c) ' at der anvendes et oppløsningsmiddel som er inert overfor det anvendte overflatebehandlingsmiddel, c) that a solvent is used which is inert to the surface treatment agent used,
d) ' at der anvendes et oppløsningsmiddel .som ikke er giftig,d) that a non-toxic solvent is used,
e) at der anvendes et oppløsningsmiddel som har et kokepunkt over 3 5°C, f) at der som oppløsningsmiddel anvendes et halogenhydrocarbon, fortrinnsvis et klorfluorhydrocarbon, e) that a solvent with a boiling point above 35°C is used, f) that a halogen hydrocarbon, preferably a chlorofluorohydrocarbon, is used as solvent,
g) at der som oppløsningsmiddel anvendes triklorfluorethan,g) that trichlorofluoroethane is used as a solvent,
h) at der anvendes et oppløsningsmiddel som inneholder et fuktemiddel eller f uktemiddelblanding ,- h) that a solvent containing a wetting agent or wetting agent mixture is used, -
i) at der•anvendes'et oppløsningsmiddel som inneholder et amfotert, ikke-ionogent, anionaktivt og/eller kationaktivt fuktemiddel, i) that a solvent containing an amphoteric, non-ionic, anion-active and/or cation-active wetting agent is used,
k) at behandlingen av gjenstanden skjer i en hertil egnet k) that the processing of the item takes place in a suitable place
anordning, fortrinnsvis et spylekammer,device, preferably a flushing chamber,
1) at der anvendes et spylekammer med kjøleanordning,1) that a flushing chamber with a cooling device is used,
m) at det i den undre del av spylekammeret under eller overm) that in the lower part of the flushing chamber below or above
den vandige fase av overflatebehandlingsmidlet oppsamlede oppløsningsmiddel trekkes fra og anvendes igjen til behandling av gjenstandene, eller the solvent collected in the aqueous phase of the surface treatment agent is withdrawn and used again to treat the objects, or
n) at det i den undre del av spylekammeret under eller over oppløsningsmidlet oppsamlede vandige overflatebehandlingsmiddel trekkes av og eventuelt efter rensing,, fortrinnsvis ved filtrering over aktivkull, anvendes til ytterligere overflatebehandling. n) that the aqueous surface treatment agent collected in the lower part of the flushing chamber below or above the solvent is drawn off and possibly after cleaning, preferably by filtration over activated carbon, used for further surface treatment.
Foreliggende fremgangsmåte kan anvendes ved alle galvaniske og/eller kjemiske overflatebehandlingsmetoder, ved hvilke en ren-, gjøring og/eller en gjenvinning av de på gjenstandene efter ut-ført behandling fremdeles vedheftende vandige overflatebehandlingsmidler er nødvendig eller ønskelig. The present method can be used with all galvanic and/or chemical surface treatment methods, in which cleaning, cleaning and/or recycling of the aqueous surface treatment agents still adhering to the objects after treatment is necessary or desirable.
Foreliggende fremgangsmåte egner seg derfor særlig til ren-gjøring åv gjenstander behandlet med kjemiske eller galvaniske bad for eksempel på basis av krom, nikkel,cobolt, kobber, cadmium, The present method is therefore particularly suitable for cleaning objects treated with chemical or galvanic baths, for example on the basis of chrome, nickel, cobalt, copper, cadmium,
zink, tinn, bly, sølv, gull eller legeringer derav, ved hvilke en • økonomisk anvendelse og miljøkrav forutsetter en mest mulig kvantitativ gjenvinning ' av de verdifulle stoffer. zinc, tin, lead, silver, gold or alloys thereof, in which an • economic application and environmental requirements presuppose the most possible quantitative recovery ' of the valuable substances.
Denne målsetning som ikke nåes ved noen. av de tidligere kjente fremaanasmåter, o<p>pnåes nu ved foreligaende fremganasmåte cå overraskende vis idet denne muliagjør en fullstendig rengjøring av de på den beskrevne måte behandlede gjenstander og oaså mulig-gjør en problemløs kvantitativ gjenvinning av det på gjenstandene efter behandlingen naturlig vedheftende behandlingsmiddel ved en teknisk- elegant fremgangsmåte. This objective is not achieved by anyone. of the previously known processing methods, is now achieved by the present method in a surprising way, as this enables a complete cleaning of the objects treated in the described manner and also enables a problem-free quantitative recovery of the treatment agent that naturally adheres to the objects after treatment by a technically elegant procedure.
Til dette formål behandles de behandlede gjenstander alltid med et med vann ublandbart flytende oppløsningsmiddel, som har en høyere eller lavere spesifikk vekt enn det vandige overflatebehandlingsmiddel, fortrinnsvis mer enn 1,25 p/cm 3 eller mindre enn 0,7 5 p/cm^. For this purpose, the treated objects are always treated with a water-immiscible liquid solvent, which has a higher or lower specific gravity than the aqueous surface treatment agent, preferably more than 1.25 p/cm 3 or less than 0.7 5 p/cm^ .
Dette oppløsningsmiddel må altså spesielt oppfylle beting-elsene at det på den ene side er ublandbart.med vann og på den annen side har en fra vann så stor differensierende spesifikk vekt, også med deri oppløste stoffer, at der kan skje en relativt hurtig adskillelse i to faser. This solvent must therefore in particular fulfill the conditions that, on the one hand, it is immiscible with water and, on the other hand, has such a large differentiating specific gravity from water, also with substances dissolved in it, that a relatively rapid separation can occur in two phases.
Ifølge oppfinnelsen anvedbare oppløsningsmidler som har disse egenskaper, er for eksempel triklortrifluorethan og triklormono-fluormethan. Solvents that can be used according to the invention which have these properties are, for example, trichlorotrifluoroethane and trichloromonofluoromethane.
Disse oppløsningsmidler kan enten anvendes alene hver forThese solvents can either be used alone for each
seg, eller når det er fordelaktig også i blanding med .hverandre. alone, or when it is advantageous also in a mixture with each other.
Oppløsningsmidlene skal særlig for å oppnå en ufarlig anvendelse fortrinnsvis ikke være brennbare og være lite eller helst ugiftig, og bør være ikke spaltbare eller bare meget vanskelig spaltbar av de mest aggressivt virkende overflatebehandlingsmidler. In particular, to achieve a harmless application, the solvents should preferably not be flammable and be slightly or preferably non-toxic, and should not be cleavable or only very difficult to be cleavable by the most aggressively acting surface treatment agents.
Det har dessuten vist seg hensiktsmessig, når oppløsnings-.midlet ikke har et for lavt kokepunkt, eller når dette allikevel skulle være tilfelle, å arbeide, under anvendelse av en egnet kjøle-anordning. It has also proven appropriate, when the solvent does not have too low a boiling point, or when this should still be the case, to work using a suitable cooling device.
Som godt egnet kan derfor nevnes slike oppløsningsmidlerSolvents such as these can therefore be mentioned as well suited
som har et kokepunkt på mest mulig over 35°C.which has a boiling point of as much as possible above 35°C.
Det har dessuten vist seg hensiktsmessig, når oppløsnings-midlet som anvendes ifølge oppfinnelsen, tilsettes et fuktemiddel eller en fuktemiddelblanding, for om nødvendig å nedsette over-flatespenningen og derved fremme fjernelsen av vannfilmen fra de behandlede gjenstander. It has also proven appropriate when a wetting agent or a wetting agent mixture is added to the solvent used according to the invention, in order to lower the surface tension if necessary and thereby promote the removal of the water film from the treated objects.
Til dette kan alt efter det ønskede formål anvendes amfotere, ikke-ionogene, anionaktive og kationaktive fuktemidler eller bland-inger av slike, av hvilke fluor- eller klorholdige fuktemidler er særlig egnet. Depending on the desired purpose, amphoteric, non-ionic, anion-active and cation-active wetting agents or mixtures of these can be used for this, of which fluorine- or chlorine-containing wetting agents are particularly suitable.
Eksempelvis kan de følgende nevnes:For example, the following can be mentioned:
Amfotere fuktemidlerAmphoteric wetting agents
N-lauryl-3-imino-dipropionsyre-natriumsalt, N-lauryl-3-imino-dipropionic acid sodium salt,
2-caprylimidazolinium-l-carboxymethy1-1-natriumethoxylat, lauroylamidopropyl-N-dimethylamino-eddiksyre, 2-caprylimidazolinium-1-carboxymethyl-1-1-sodium methoxylate, lauroylamidopropyl-N-dimethylamino-acetic acid,
lauroylamidopropyl-N-dimethylaminoxyd, lauroylamidopropyl-N-dimethylamine oxide,
cetyldiethylaminotetraglycolethersulfat og andre.cetyldiethylaminotetraglycol ether sulfate and others.
Ikke- ionogene fuktemidlerNon-ionic humectants
nonylfenolpolyglycolether,nonylphenol polyglycol ether,
glycoldistearat,glycol distearate,
ethoxylert polypropylenglycol, perfluoroctylsulfonamido-polyglycolether, ethoxylated polypropylene glycol, perfluorooctyl sulfonamido polyglycol ether,
oljesyreamidopolyglycolether og andre.oleic amidopolyglycol ether and others.
Anionaktive fuktemidlerAnionic moisturizers
natriumlauryls.ulf at,sodium lauryls.ulf at,
perfluoroctylsulfonsyre-kaliumsalt, perfluorooctylsulfonic acid potassium salt,
kokosfettsyresarkosid-natriumsalt, coconut fatty acid sarcoside sodium salt,
dibutylnafthalinsulfonsyre-natriumsalt,dibutyl naphthalene sulfonic acid sodium salt,
o-fosforsyreester av oleyloctaglycolether-triethanol-ammoniumsalt og andre. o-phosphoric acid ester of oleyloctaglycolether-triethanol-ammonium salt and others.
Kationaktive fuktemidlerCationic moisturizers
pentaoxyethylstearylammoniumklorid, pentaoxyethylstearylammonium chloride,
perfluoroctylsulfonamidopropy1-trimethyl-ammoniumjodid, cetyltrimethylammoniumbromid og andre. j perfluorooctylsulfonamidopropyltrimethylammonium iodide, cetyltrimethylammonium bromide and others. j
I tilfelle rengjøring av gjenstander behandlet med kromsyre-holdige midler eller bad er anvendelsen av mot disse inerte fluorholdige fuktemidler uomgjengelig nødvendig. In the case of cleaning objects treated with chromic acid-containing agents or baths, the use of fluorine-containing wetting agents inert to these is absolutely necessary.
Foreliggende behandling av gjestandene kan skje i en til dette egnet vanlig anordning, for eksempel i et spylekammer. Dette er, som ovenfor nevnt, i tilfelle av lavtkokende oppløsningsmidler fortrinnsvis forsynt med en kjøleanordning, som også er fordel-aktiv ved overflatebehandlinger som skjer ved høyere temperaturer, som for eksempel ved-varmnikkelbad. The present treatment of the objects can take place in a conventional device suitable for this, for example in a flushing chamber. This is, as mentioned above, in the case of low-boiling solvents preferably provided with a cooling device, which is also advantageously active in surface treatments that take place at higher temperatures, such as, for example, in a hot nickel bath.
Ved utføringen av foreliggende fremgangsmåte blir det ved gjenstandene efter den tilsvarende behandling vedheftende overflatebehandlingsmiddel kvantitativt fjernet ved behandlingen med oppløsningsmidlet som kan skje ved påsprøytning, pådusjing eller påhelning i en permanent eller intermitterende utført arbeids-metode, og kan påbegynnes i en beholder hvortil mest hensiktsmessig spylekamre selv er egnet. In carrying out the present method, the surface treatment agent adhering to the objects after the corresponding treatment is quantitatively removed by the treatment with the solvent, which can be done by spraying, showering or pouring in a permanent or intermittent working method, and can be started in a container for which the most suitable flushing chambers itself is suitable.
I den undre del av beholderen, henholdsvis spylekamret, skjer så en faseadskillelse hvorved alt efter det anvendte opp-løsningsmiddels spesifikke vekt dette enten separeres over eller In the lower part of the container, respectively the flushing chamber, a phase separation then takes place whereby, depending on the specific weight of the solvent used, this is either separated above or
under det vandige overflatebehandlingsmiddel.under the aqueous surface treatment agent.
Det hører derfor dessuten til gjenstanden for foreliggende oppfinnelse på den ene side at oppløsningsmidlet avtrekkes ved egnede anordninger, som pumper og forbinder systemet, og på ny anvendes til rengjøring, såvel som på den annen side det fraskilte vandige overflatebehandlingsmiddel, eventuelt efter rensing, fortrinnsvis ved filtrering, anvendes til videre overflatebehandling. It therefore also belongs to the object of the present invention, on the one hand, that the solvent is drawn off by suitable devices, which pump and connect the system, and is used again for cleaning, as well as, on the other hand, the separated aqueous surface treatment agent, possibly after cleaning, preferably by filtration, is used for further surface treatment.
Disse forholdsregler muliggjør'derfor tilsammen såvel en fullstendig rengjøring av gjenstandene efter utført overflatebehandling som også én kvantitativ gjenvinning . av de anvendte verdifulle stoffer i teknisk enkel fremgangsmåte. These precautions therefore enable a complete cleaning of the objects after the surface treatment has been carried out as well as a quantitative recycling. of the valuable substances used in a technically simple procedure.
Av dette fremgår i enkelte tilfeller andre fordeler som for eksempel muligheten for å konstruere mindre overflatebehahdlings-anlegg, for eksempel galvaniseringsanlegg, såvel som den nesten fullstendige unngåelse av spillvann, og dermed oppnåelsen av for-bildemessig miljøvern. From this, in some cases, other advantages appear, such as the possibility of constructing smaller surface treatment plants, for example galvanizing plants, as well as the almost complete avoidance of waste water, and thus the achievement of exemplary environmental protection.
De følgende eksempler tjener til å belyse oppfinnelsen. The following examples serve to illustrate the invention.
Eksempel , 1Example, 1
Deler av stål eller jern, for eksempel skruer, ble behandlet galvanisk i en vandig nikkelektrolytt av vanlig sammensetning ved 55°C i en panne, ble derpå tatt ut av badet og overført.i-et spylekammer...Derpå ble delene oversprøytet med en oppløsning som be-sto av triklortrifluorethan (kokepunkt 47,6°C, spesifikk vekt 1,582 kp/m 3) og 5 vektdeler av et fuktemiddel på basis av perfluor-octylsulf onsyre . Parts of steel or iron, for example screws, were galvanically treated in an aqueous nickel electrolyte of common composition at 55°C in a pan, then removed from the bath and transferred.into a flushing chamber...Then the parts were sprayed with a solution which consisted of trichlorotrifluoroethane (boiling point 47.6°C, specific weight 1.582 kp/m 3 ) and 5 parts by weight of a wetting agent based on perfluorooctylsulfonic acid.
Besprøytningen skjedde i intervaller med en totalvarighet fra 2 til 5 minutter, hvorved der ble oppnådd en fullstendig ren-gjøring av de forniklede deler for vedheftende badoppløsning. The spraying took place in intervals with a total duration of 2 to 5 minutes, whereby a complete cleaning of the nickel-plated parts for adhering bath solution was achieved.
Rengjøringen av ytterligere deler skjedde i en flere timers fremgangsmåterytme. med lignende virkning og samtidig ble den er-holdte blanding av den fra delene avspylte vandige nikkelelektrolytt og oppløsningsmiddel-fuktemiddeloppløsningen oppfanget i den undre del av spylekamret, hvor der alltid skjedde en øyeblikkelig adskillelse i to skikt. Over et pumpe- og rørforbindingssystem ble nu den undre oppløsningsmiddel-fuktemiddelfase anvendt til matning av sprøytedysene og den øvre vandige elektrolyttopp-løsning ble efter å ha passert et aktivkullfilter ført til karet The cleaning of further parts took place in a procedure rhythm of several hours. with a similar effect and at the same time the resulting mixture of the aqueous nickel electrolyte rinsed from the parts and the solvent-wetting agent solution was collected in the lower part of the flushing chamber, where an instantaneous separation into two layers always occurred. Via a pump and pipe connection system, the lower solvent-wetting agent phase was now used to feed the spray nozzles and the upper aqueous electrolyte solution, after passing an activated carbon filter, was led to the vessel
med nikkelelektrolytt.with nickel electrolyte.
Fremgangsmåten arbeidet fritt for spillvann og der inntråtte intet■merkbart elektrolyttap. The process worked free of waste water and there was no noticeable loss of electrolyte.
Forsøket ble gjentatt med samme resultat under anvendelseThe experiment was repeated with the same result during application
av et fuktemiddel på basis av ethoxylert polypropylenglycol. of a wetting agent based on ethoxylated polypropylene glycol.
Eksempel 2Example 2
Den i eksempel 1 beskrevne fremgangsmåte ble utført under anvendelse av triklortrifluorethan som oppløsningsmiddel uten. fuktemiddeltilsetning. Skjønt intet fuktemiddel.var tilstede, førte også dette forsøk til en tilfredsstillende rengjøring av de galvaniserte deler. Gjenvinningen av oppløsningsmidlet og den medførte elektrolyttvæske skjedde praktisk, talt kvantitativt. The method described in example 1 was carried out using trichlorotrifluoroethane as solvent without. humectant addition. Although no wetting agent was present, this attempt also led to a satisfactory cleaning of the galvanized parts. The recovery of the solvent and the entrained electrolyte liquid took place practically, quantitatively speaking.
Eksempel 3Example 3
Den i eksempel 1 beskrevne fremgangsmåte ble utført under anvendelse av en vanlig svaksyre-zinkelektrolytt. Som oppløsnings-middel tjente triklortrifluorethan som som fuktemiddel inneholdt 3 vekt% cetyldiethylaminopolyglycolether-sulfat. The method described in example 1 was carried out using a normal weak acid zinc electrolyte. The solvent used was trichlorotrifluoroethane, which as wetting agent contained 3% by weight of cetyldiethylaminopolyglycol ether sulfate.
Rengjøringsvirkningen var optimal. Elektrolyttap ved med-føring var efter flere dagers arbeide ikke påvisbar. The cleaning effect was optimal. Electrolyte loss during entrainment was not detectable after several days of work.
Eksempél 4 Example 4
Den i eksempel 1 beskrevne fremgangsmåte ble'utført under anvendelse av en vanlig alkalisk cyanidholdig zinkelektrolytt. The method described in example 1 was carried out using a normal alkaline cyanide-containing zinc electrolyte.
Som oppløsningsmiddel tjente triklortrifluorethan inneholdendeTrichlorotrifluoroethane containing was used as a solvent
som fuktemiddel 2 vekt% kokosfettsyresarkosid. Delene var fri for residuer. Oppløsningsmidlet kunne tilbakeføres praktisk talt kvantitativt til videreanvendelse. as humectant 2% by weight coconut fatty acid sarcoside. The parts were free of residues. The solvent could be returned practically quantitatively for further use.
Claims (16)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19762636993 DE2636993A1 (en) | 1976-08-13 | 1976-08-13 | METHOD FOR CLEANING OBJECTS AFTER GALVANIC AND / OR CHEMICAL SURFACE TREATMENT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO772817L true NO772817L (en) | 1978-02-14 |
Family
ID=5985647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO772817A NO772817L (en) | 1976-08-13 | 1977-08-11 | PROCEDURES FOR CLEANING ITEMS AFTER GALVANIC AND / OR CHEMICAL SURFACE TREATMENT |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS5322826A (en) |
| AT (1) | AT359801B (en) |
| BE (1) | BE857757A (en) |
| BR (1) | BR7705280A (en) |
| CA (1) | CA1090238A (en) |
| CH (1) | CH631745A5 (en) |
| DD (1) | DD131187A5 (en) |
| DE (1) | DE2636993A1 (en) |
| DK (1) | DK327677A (en) |
| ES (1) | ES461378A1 (en) |
| FR (1) | FR2361479A1 (en) |
| GB (1) | GB1584407A (en) |
| HU (1) | HU177756B (en) |
| IT (1) | IT1085361B (en) |
| NL (1) | NL7708481A (en) |
| NO (1) | NO772817L (en) |
| RO (1) | RO73096A (en) |
| SE (1) | SE7709052L (en) |
| YU (1) | YU178677A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5823479B2 (en) * | 1978-06-02 | 1983-05-16 | 富士プラント工業株式会社 | Method for removing and recovering plating solution from adhesion to the object to be plated |
| DE3040037A1 (en) * | 1980-10-23 | 1982-05-13 | Defo-Chemie GmbH, 8000 München | Reclaiming of aq. electroplating solns. contg. noble metals - by immersing electroplated workpieces in water displacement bath contg. petroleum spirit fraction |
| DE3205736A1 (en) * | 1982-02-18 | 1983-08-25 | Langbein-Pfanhauser Werke Ag, 4040 Neuss | METHOD FOR SOLVENT TREATMENT OF PARTICULAR METAL TREATMENT |
| CH663554A5 (en) * | 1985-09-13 | 1987-12-31 | Serge Berruex | METHOD FOR RINSING SURFACES WITHOUT USING WATER, AND INSTALLATION FOR CARRYING OUT SAID METHOD. |
| DE4415548A1 (en) * | 1994-05-03 | 1995-11-09 | Frembgen Fritz Herbert | Method for treating electrochemically machined workpieces |
| WO2010119018A1 (en) * | 2009-04-16 | 2010-10-21 | Basf Se | Removal of metallic salt-containing ionic fluids from surface-treated work pieces and recycling of said fluids |
| CN114277382B (en) * | 2021-12-29 | 2023-08-01 | 泰伦特生物工程股份有限公司 | Water-cutting cleaning agent for replacing rinsing and drying process and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4879133A (en) * | 1972-01-25 | 1973-10-24 |
-
1976
- 1976-08-13 DE DE19762636993 patent/DE2636993A1/en not_active Withdrawn
-
1977
- 1977-07-18 YU YU01786/77A patent/YU178677A/en unknown
- 1977-07-19 DK DK327677A patent/DK327677A/en unknown
- 1977-07-27 AT AT548477A patent/AT359801B/en not_active IP Right Cessation
- 1977-08-01 NL NL7708481A patent/NL7708481A/en not_active Application Discontinuation
- 1977-08-05 ES ES461378A patent/ES461378A1/en not_active Expired
- 1977-08-09 CH CH976877A patent/CH631745A5/en not_active IP Right Cessation
- 1977-08-09 IT IT26600/77A patent/IT1085361B/en active
- 1977-08-10 DD DD7700200515A patent/DD131187A5/en unknown
- 1977-08-10 BR BR7705280A patent/BR7705280A/en unknown
- 1977-08-10 SE SE7709052A patent/SE7709052L/en unknown
- 1977-08-10 RO RO7791321A patent/RO73096A/en unknown
- 1977-08-11 NO NO772817A patent/NO772817L/en unknown
- 1977-08-11 CA CA284,532A patent/CA1090238A/en not_active Expired
- 1977-08-11 GB GB33731/77A patent/GB1584407A/en not_active Expired
- 1977-08-12 HU HU77SCHE618A patent/HU177756B/en unknown
- 1977-08-12 BE BE180142A patent/BE857757A/en not_active IP Right Cessation
- 1977-08-12 JP JP9687477A patent/JPS5322826A/en active Pending
- 1977-08-16 FR FR7725009A patent/FR2361479A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| ES461378A1 (en) | 1978-08-16 |
| YU178677A (en) | 1982-08-31 |
| BE857757A (en) | 1978-02-13 |
| DD131187A5 (en) | 1978-06-07 |
| BR7705280A (en) | 1978-05-23 |
| AT359801B (en) | 1980-12-10 |
| IT1085361B (en) | 1985-05-28 |
| SE7709052L (en) | 1978-02-14 |
| DK327677A (en) | 1978-02-14 |
| GB1584407A (en) | 1981-02-11 |
| ATA548477A (en) | 1980-04-15 |
| JPS5322826A (en) | 1978-03-02 |
| DE2636993A1 (en) | 1978-02-23 |
| CA1090238A (en) | 1980-11-25 |
| RO73096A (en) | 1981-06-26 |
| FR2361479A1 (en) | 1978-03-10 |
| CH631745A5 (en) | 1982-08-31 |
| NL7708481A (en) | 1978-02-15 |
| HU177756B (en) | 1981-12-28 |
| FR2361479B1 (en) | 1983-07-18 |
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