CS258249B1 - Method of ferric and copper chlorides containing concentrated aqueous solutions liquidation - Google Patents
Method of ferric and copper chlorides containing concentrated aqueous solutions liquidation Download PDFInfo
- Publication number
- CS258249B1 CS258249B1 CS868789A CS878986A CS258249B1 CS 258249 B1 CS258249 B1 CS 258249B1 CS 868789 A CS868789 A CS 868789A CS 878986 A CS878986 A CS 878986A CS 258249 B1 CS258249 B1 CS 258249B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- concentrated aqueous
- aqueous solutions
- ferric
- liquidation
- containing concentrated
- Prior art date
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- 239000007864 aqueous solution Substances 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 5
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical class Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 title description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 4
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical class Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 8
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
Landscapes
- ing And Chemical Polishing (AREA)
Abstract
Riešenie spočívá v tom, že sa koncentrovaný vodný roztok obsahujúci chlorid železa a médi prevedie na kašovitú až tuhú látku prostrednlctvom 2 až 15 % hmotnostných kovového hliníka.The solution is that it is concentrated an aqueous solution containing iron chloride a the medium is converted to a pulpy or solid substance by means of 2 to 15% by weight of metal aluminum.
Description
Predmetom vynálezu je spósob likvldácie odpadných koncentrovaných vodných roztokov obsahujúcich chloridy železa a médi, ako například opotřebovaný roztok zahlbovača médi používaného pri výrobě tlačených spojov v elektrotechnike.It is an object of the present invention to provide a method of disposing of concentrated aqueous solutions containing iron chloride and media, such as a worn solution of a media sinker used in the manufacture of printed circuit boards in electrical engineering.
Opotřebované zahlbovače médi na báze chloridu železitého obsahujú ešte chlorid železnatý a chlorid mednatý, ktoré vznikli rozpúštaním médi na úkor spotřeby chloridu železitého. Vyčerpánosť týchto roztokov v dósledku ktorej sa stávajú odpadnými, sa prejavuje úbytkom chloridu železitého, čím nepriaznivo spomaluje rýchlosť, leptania médi. Bežne sa udává, že roztoky s obsahom 50 až 80 g médi na liter sú prakticky už nepoužitelné. Preto sa vo vSčších prevádzkach používajúcich tento typ zahlbovača, roztok priebežne regeneruje v zložitých zariadeniach pomocou elektrolytického vylučovania médi na pohyblivú elektrodu s oxidáciou roztoku plynným chlórom.Worn ferric chloride-based media counters also contain ferrous chloride and copper (II) chloride, which were formed by dissolving the medium at the expense of ferric chloride consumption. The depletion of these solutions as a result of which they become waste is manifested by a loss of ferric chloride, thereby adversely retarding the rate of etching of the medium. It is commonly reported that solutions containing 50 to 80 g of medium per liter are practically no longer usable. Therefore, in larger plants using this type of sinker, the solution is continuously regenerated in complex plants by electrolytic deposition of a moving electrode medium with oxidation of the solution with chlorine gas.
V menších prevádzkach sa opotřebovaný roztok likviduje bud vylievaním do odpadových vód, alebo přidáváním do odpadových vód v neutralizačných staniciach. V oboch prípadoch dochadza k zvyšovaniu obsahu škodlivých chemikálií v povrchových vodách, připadne tiež po určítej době k priebehu nepředpokládaných reakcii.In smaller plants, the worn solution is disposed of either by pouring it into waste water or by adding it to the waste water at neutralization stations. In both cases, there is an increase in the content of harmful chemicals in surface waters, or after a certain period of time unexpected reactions occur.
Vyššie uvedené nedostatky zmierňuje spósob likvidácie koncentrovaných vodných roztokov obsahujúcich chloridy železa a médi podlá vynálezu, ktorého podstatou je, že sa koncentrovaný vodný roztok obsahujúci chloridy železa a médi prevedie na kašovitú až tuhú látku pósobením 2 až 15 4 hmotnostných kovového hliníka a jeho zliatin.The aforementioned drawbacks are alleviated by the method of disposing of concentrated aqueous solutions containing iron chlorides and media according to the invention, which is characterized in that the concentrated aqueous solution containing iron chloride and media is converted to a slurry to solid by treatment with 2-15% by weight of metallic aluminum and its alloys.
Spósob likvidácie koncentrovaných vodných roztokov podlá vynálezu sa docieli toho, že sa dá vykonávat bez nároku na kvalifikáciu a potřeby zvláštneho zariadenia. Látka získaná likvidáciou nepředstavuje žiadne nebezpečenstvo pre povrchové a spodně vody. Je ju možné tiež zhromaždovať a získavať z nej vylúčenú med.The method of disposing of the concentrated aqueous solutions according to the invention is achieved in that it can be carried out without the need for qualification and the needs of a particular device. The substance obtained by disposal does not present any danger to surface and ground water. It can also be collected and recovered from it.
Příkladné riešenie spósobu likvidácie koncentrovaných vodných roztokov je následovně:An exemplary solution for the disposal of concentrated aqueous solutions is as follows:
Je potřeba likvidovat odpadný roztok zahlbovača obchodnéj značky grafolit. Takýto čerstvý zahlbovač obsahuje viac ako 60 4 chloridu železitého a chlorid vápenatý. Opotřebovaný zahlbovač obsahoval 55 g médi v 1 litri roztoku a mal obsah vody získaný vysušovaním pri 110 °C okolo 60 4. Skúškou sa zistilo, že na požadovanú premenu je třeba 5,2 4 hmotnostných odpadného hliníka a že bez miešania a chladenia sa v priebehu pósobenia hliníkom zvačšuje objem zmesi až o 100 4. Po zlikvidovaní sa získala pevná hmota, ktorej hmotnost bola 80 4 z hmotnosti odpadného zahlbovača. Získaná hmota sa pósobením vody rozpadla a výluh s dvojnásobným množstvom vody mal skoro neutrálnu reakciu. Taký istý neutrálny materiál sa získal i pósobením běžných hliníkovvých zliatin.It is necessary to dispose of the waste solution of the brand of grapholite. Such a fresh sinker contains more than 60% of ferric chloride and calcium chloride. The worn down well contained 55 g of medium in 1 liter of solution and had a water content obtained by drying at 110 ° C of about 604. The test showed that 5.24 wt. treatment with aluminum increases the volume of the mixture by up to 100 4. Upon disposal, a solid mass of 80 4 of the weight of the waste sinker is obtained. The resulting mass disintegrated by the action of water and the extract with twice the amount of water had an almost neutral reaction. The same neutral material was also obtained by the action of conventional aluminum alloys.
Vlastná likvidácie sa potom vykonala v odpadných nádobách, ktorých celkový objem bol dvojnásobný ako objem odpadného zahlbovača. Do odpadných nádob sa dali triesky zo sústruženia hliníkových obrobkov, ktoré sa zalievali po dávkách odpadným zahlbovačom a premiešali sa. Použilo sa 6 4 odpadného hliníka na hmotnost likvidovaného roztoku.The actual disposal was then carried out in waste containers whose total volume was twice that of the waste sinker. Into the waste containers, the chips from the turning of aluminum workpieces were placed, which were poured in portions with the waste sinker and mixed. 6 4 waste aluminum was used per weight of solution to be disposed.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS868789A CS258249B1 (en) | 1986-12-01 | 1986-12-01 | Method of ferric and copper chlorides containing concentrated aqueous solutions liquidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS868789A CS258249B1 (en) | 1986-12-01 | 1986-12-01 | Method of ferric and copper chlorides containing concentrated aqueous solutions liquidation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS878986A1 CS878986A1 (en) | 1987-11-12 |
| CS258249B1 true CS258249B1 (en) | 1988-07-15 |
Family
ID=5438927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS868789A CS258249B1 (en) | 1986-12-01 | 1986-12-01 | Method of ferric and copper chlorides containing concentrated aqueous solutions liquidation |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS258249B1 (en) |
-
1986
- 1986-12-01 CS CS868789A patent/CS258249B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS878986A1 (en) | 1987-11-12 |
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