DE2230243B1 - Process for the recovery of valuable materials from industrial bobbins - Google Patents
Process for the recovery of valuable materials from industrial bobbinsInfo
- Publication number
- DE2230243B1 DE2230243B1 DE2230243A DE2230243DA DE2230243B1 DE 2230243 B1 DE2230243 B1 DE 2230243B1 DE 2230243 A DE2230243 A DE 2230243A DE 2230243D A DE2230243D A DE 2230243DA DE 2230243 B1 DE2230243 B1 DE 2230243B1
- Authority
- DE
- Germany
- Prior art keywords
- rinsing
- osmosis
- recovery
- baths
- substances
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title claims description 20
- 238000000034 method Methods 0.000 title claims description 17
- 239000000463 material Substances 0.000 title claims description 5
- 239000000126 substance Substances 0.000 claims description 25
- 239000012141 concentrate Substances 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 239000012466 permeate Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001223 reverse osmosis Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 239000008237 rinsing water Substances 0.000 claims description 7
- 238000005342 ion exchange Methods 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000010970 precious metal Substances 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 5
- 239000000356 contaminant Substances 0.000 claims description 4
- 238000009713 electroplating Methods 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 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
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 3
- 229910052782 aluminium Inorganic materials 0.000 claims 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 3
- 238000005189 flocculation Methods 0.000 claims 3
- 230000016615 flocculation Effects 0.000 claims 3
- 238000004043 dyeing Methods 0.000 claims 2
- 230000003647 oxidation Effects 0.000 claims 2
- 238000007254 oxidation reaction Methods 0.000 claims 2
- 239000000243 solution Substances 0.000 claims 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 claims 1
- 229910052793 cadmium Inorganic materials 0.000 claims 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 238000004040 coloring Methods 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 238000010612 desalination reaction Methods 0.000 claims 1
- 239000000975 dye Substances 0.000 claims 1
- 235000013305 food Nutrition 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 235000013372 meat Nutrition 0.000 claims 1
- 229910000510 noble metal Inorganic materials 0.000 claims 1
- 150000007524 organic acids Chemical class 0.000 claims 1
- 235000005985 organic acids Nutrition 0.000 claims 1
- 229910052763 palladium Inorganic materials 0.000 claims 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 229910052703 rhodium Inorganic materials 0.000 claims 1
- 239000010948 rhodium Substances 0.000 claims 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims 1
- 239000013535 sea water Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- 239000002351 wastewater Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 238000009825 accumulation Methods 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- 239000007857 degradation product Substances 0.000 description 3
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Chemical compound OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 1
- 239000005862 Whey Substances 0.000 description 1
- 102000007544 Whey Proteins Human genes 0.000 description 1
- 108010046377 Whey Proteins Proteins 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- 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
- C25D21/16—Regeneration of process solutions
- C25D21/20—Regeneration of process solutions of rinse-solutions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/08—Specific process operations in the concentrate stream
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
Description
Das bei der umgekehrten Osmose anfallende Reinwasser (Permeat) kann zur Füllung der Standspülbäder verwendet oder beispielsweise in der Metalloberflächenveredlung bei Verwendung von Fließspülbädern wieder in den Wasserkreislauf zurückgegeben werden. Je nach den betrieblichen Gegebenheiten kann das Permeat auch in den Kanal geleitet werden.The pure water (permeate) produced by reverse osmosis can be used to fill the standing rinsing baths used or, for example, in metal surface finishing when using continuous rinsing baths be returned to the water cycle. Depending on the operational conditions, this can be Permeate can also be passed into the sewer.
Die Wiederverwendung des Permeats hat den Vorteil, daß der Wasserbedarf sehr klein gehalten werden kann. Daneben hat das erfmdungsgemäße Rückgewinnungsverfahren den Vorzug, daß die Konzentration im Standspülbad weitgehend konstant gehalten werden kann.The reuse of the permeate has the advantage that the water requirement can be kept very small can. In addition, the recovery process according to the invention has the advantage that the concentration can be kept largely constant in the standing rinse.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung im Zusammenhang mit den Zeichnungen, in denen Ausführungsbeispiele als Fließschema wiedergegeben sind. Hierin zeigtFurther advantages and features of the invention emerge from the following description in Relation to the drawings, in which exemplary embodiments are reproduced as a flow chart are. Herein shows
F i g. 1 eine Anlage zur Rückgewinnung von Substanzen aus einer Standspüle mittels reversibler Osmose,F i g. 1 a system for the recovery of substances from a standing sink by means of a reversible Osmosis,
F i g. 2 die gleiche Anlage, jedoch mit einer der Standspüle nachgeschalteten Fließspüle,F i g. 2 the same system, but with a flowing sink downstream of the standing sink,
F i g. 3 eine ähnliche Anlage wie in F i g. 2, jedoch kombinierbar mit einer Kreislauf-Ionenaustauscheranlage. F i g. 3 a similar system as in F i g. 2, but can be combined with a circuit ion exchanger system.
Mit 10 ist das Behandlungsbad, z. B. das Galvanikbad, gekennzeichnet, in welchem die Behandlung von Werkstücken verschiedener Art erfolgt. Um die konzentrierte Behandlungsflüssigkeit, die durch einen dem Werkstück anhaftenden Flüssigkeitsfilm ausgeschleppt wird, abzuspülen, ist dem Behandlungsbad eine Standspüle 11 nachgeschaltet. In dieser findet eine Anreicherung der gelösten Stoffe statt. Es handelt sich um wertvolle Substanzen, zu deren Rückgewinnung die nachfolgend beschriebene Schaltung vorgesehen ist. Zu diesem Zweck wird die wäßrige Lösung aus der Standspüle 11 über die Leitung 12, in welcher Druckerhöhungspumpen 13 geschaltet sind, Osmosezellen 14 zugeführt. Das dort abgeschiedene Konzentrat wird je nach dem Grad der Verunreinigung in einer insgesamt mit 15 bezeichneten Reinigungsstufe behandelt und dann dem Konzentratbad 10 ganz oder teilweise über die Leitung 16 wiederum zugeführt. Vor der Reinigungsstufe liegt ein Dreiwegeventil 19, so daß gegebenenfalls das Konzentrat in das Behandlungsbad 10 unter Umgehung der Reinigungsstufe zurückgeführt werden kann. Das aus der Osmosezelle 14 austretende Permeat (Reinwasser) wird über eine Leitung 18 in die Standspüle 11 zurückgeleitet.With 10 is the treatment bath, for. B. the electroplating bath, in which the treatment of Workpieces of various types takes place. To the concentrated treatment liquid, which by a The liquid film adhering to the workpiece is dragged out and rinsed off is the treatment bath a standing sink 11 is connected downstream. In this there is an enrichment of the dissolved substances. It deals valuable substances, for whose recovery the circuit described below is provided is. For this purpose, the aqueous solution from the standing sink 11 via the line 12, in which Booster pumps 13 are connected, osmosis cells 14 are supplied. The concentrate deposited there is treated depending on the degree of contamination in a total of 15 designated cleaning stage and then completely or partially fed back to the concentrate bath 10 via the line 16. A three-way valve 19 is located upstream of the cleaning stage, so that, if necessary, the concentrate can enter the treatment bath 10 can be returned by bypassing the cleaning stage. That from the osmosis cell 14 escaping permeate (pure water) is returned to the standing sink 11 via a line 18.
Durch diese Schaltung ist es möglich, die am Werkstoff haftenden Substanzen, die in der Spüle 11 anfallen, fast vollständig zurückzugewinnen. Außerdem hat diese Schaltung den Vorteil einer erheblichen Wassereinsparung. Mit Hilfe der umgekehrten Osmose in den Osmosezellen 14 werden aus dem aufzubereitenden Standspülbad die Inhaltsstoffe zu etwa 90°/0 entfernt. Die Restanteile von 10°/0 stören den Spülprozeß nicht, da sie im Spülkreislauf verbleiben. Eine Anreicherung dieser Stoffe kann nicht stattfinden, da die Abscheiderate durch die Osmosezellen 14 immer gleich bleibt. Außerdem wird durch die vollständige oder teilweise Aufbereitung des Spülwassers aus dem Bad 11 durch die Osmosezellen 14 die Restkonzentration im Spülbad 11 so beeinflußt, daß nur ein sehr geringer Ausschleppungsverlust aus dem Standspülbad in etwa nachfolgende Bäder vorhanden ist.This circuit makes it possible to almost completely recover the substances adhering to the material that occur in the sink 11. In addition, this circuit has the advantage of saving considerable water. With the help of the reverse osmosis in the osmosis cells 14, the ingredients are removed to about 90 ° / 0 from the standing rinse bath to be reprocessed. The remaining proportions of 10 ° / 0 do not interfere with the rinsing process, as they remain in the rinsing circuit. An accumulation of these substances cannot take place since the deposition rate by the osmosis cells 14 always remains the same. In addition, due to the complete or partial processing of the rinsing water from the bath 11 by the osmosis cells 14, the residual concentration in the rinsing bath 11 is influenced in such a way that there is only a very low drag-out loss from the standing rinsing bath in approximately subsequent baths.
Durch chemische und physikalische Prozesse können Abbauprodukte entstehen, die sich im die Osmosezellen verlassenden Konzentrat befinden. Es kann sich hierbei um Störstoffe handeln, die bei der Werkstoff-Behandlung angefallen sind, z. B. in galvanischen Bädern Abbau-Produkte von Glanzbildnern und Netzmitteln. Bei der Rückführung des Konzentrats in das Behandlungsbad 10 besteht somit die Gefahr einer Anreicherung dieser Abbauprodukte im Behandlungsbad. Um diese störenden Substanzen von den zur Chemical and physical processes can result in degradation products that are in the osmosis cells leaving concentrate. These can be contaminants that are involved in the treatment of the material incurred, z. B. in galvanic baths degradation products of brighteners and wetting agents. When the concentrate is returned to the treatment bath 10, there is therefore the risk of a Enrichment of these degradation products in the treatment bath. To remove these interfering substances from the to
ίο Rückgewinnung für das Konzentratbad vorgesehenen Substanzen zu trennen, ist eine Reinigungsstufe 15 vorgesehen. In dieser Reinigungsstufe werden beispielsweise bei der Rückgewinnung von Nickel folgende Prozesse vorgenommen:ίο Recovery provided for the concentrate bath To separate substances, a cleaning stage 15 is provided. In this cleaning stage, for example the following processes are carried out in the recovery of nickel:
a) Fällung des Nickels, Waschung des Rückstandes zur restlosen Entfernung der Störsubstanzen,a) Precipitation of the nickel, washing of the residue to completely remove the interfering substances,
b) Behandlung des Konzentrats mittels Aktivkohle, Ionenaustauschbehandlung, Adsorption mittelsb) Treatment of the concentrate by means of activated carbon, ion exchange treatment, adsorption means
Adsorberharzen und/oderAdsorber resins and / or
c) Behandlung durch nochmalige umgekehrte Osmose und gegebenenfalls Ultrafiltration (extreme Feinfiltrierung). c) Treatment by repeated reverse osmosis and optionally ultrafiltration (extreme fine filtration).
Bei dem in F i g. 2 dargestellten Fließschema ist dem Standspülbad ein weiteres Spülbad 21 nachgeschaltet. Gleiche Teile sind hier mit gleichen Bezugsziffern wie in F i g. 1 versehen. Obschon in dem vorgeschalteten Standspülbad eine weitgehende Abspülung der dem Werkstück anhaftenden Stoffe stattfindet, werden aber noch kleine Mengen an gegebenenfalls wertvollen Substanzen ausgeschleppt, deren Rückgewinnung von Interesse ist, zumindest dann, wenn es sich um Edelmetalle, Platin, Gold usw. handelt. Es kann vorgesehen sein, daß das aus den Osmosezellen austretende Permeat über die Leitung 18 sowohl in das Standspülbad 11 als auch in das Fließbad 28 zur Wiederverwendung eingeführt wird. Außerdem ist eine Leitung 22 vorgesehen, von welcher auch aus dem Spülbad 21 über ein Dreiwegeventil 23 das Spülwasser zu den Osmosezellen geleitet wird.In the case of the FIG. 2, a further rinsing bath 21 is connected downstream of the standing rinsing bath. The same parts are given the same reference numerals as in FIG. 1 provided. Although in the upstream Standing rinsing bath, however, the substances adhering to the workpiece are largely rinsed off still small amounts of possibly valuable substances dragged out, their recovery of Interest is, at least when it comes to precious metals, platinum, gold, etc. It can be provided be that the permeate emerging from the osmosis cells via line 18 both in the standing rinse 11 as well as into the fluidized bath 28 for reuse. There is also a line 22 is provided, from which the rinsing water to the rinsing bath 21 via a three-way valve 23 Osmosis cells is directed.
Die F i g. 3 zeigt ein Schema der beschriebenen Anlage in Verbindung mit einer Kreislaufanlage zur Aufbereitung der Spülwässer. Bei dieser werden die anfallenden Spülwässer einem Sammelbehälter 30 zusammen mit anderen aus dem Betrieb stammenden Spülwässern zugeführt und anschließend über eine Ionenaustauscheranlage, die insgesamt mit 31 bezeichnet ist, entsalzt. Eine solche Aufbereitung des Permeats kann bei einigen chemischen Substanzen sehr nützlich sein. Wie schon früher erwähnt, werden durch die Osmosezellen nur etwa 90% ausgeschieden oder zurückgehalten. Der restliche Anteil von 10% im Permeat spiegelt nicht den Salzgehalt wieder, der vor dem Eintritt in die Osmosezellen vorhanden war. Da das Rückhaltevermögen für die einzelnen Salze oder chemischen Verbindungen in den Osmosezellen unterschiedlich ist, kann es trotz der hohen Abscheiderate in den Osmosezellen zu einer Anreicherung im Rückgewinnungskreislauf kommen. Um dieses zu vermeiden, ist es zweckmäßig, wenn das Permeat die in F i g. 3 schematisch dargestellte Ionenaustauscheranlage passiert. Ist keine Kreislauf-Ionenaustauscheranlage 31 vorhanden, so können im Reinwasserstrom 18 die gestrichelt angedeuteten, insgesamt mit 32 bezeichneten Ionenaustauscherstraßen (Kationenaustauscher, denen Anionenaustauscher nachgeschaltetThe F i g. 3 shows a diagram of the system described in connection with a circulation system for Treatment of the rinsing water. In this case, the rinsing water that arises is transferred to a collecting container 30 supplied together with other rinsing water from the company and then supplied via a Ion exchange system, which is designated as a whole by 31, is desalinated. Such a preparation of the Permeate can be very useful with some chemical substances. As mentioned earlier, through only about 90% of the osmotic cells are excreted or retained. The remaining 10% im Permeate does not reflect the salt content that was present before entering the osmosis cells. There the retention capacity for the individual salts or chemical compounds in the osmosis cells varies is, there can be an accumulation in the recovery cycle despite the high separation rate in the osmosis cells come. In order to avoid this, it is useful if the permeate is as shown in FIG. 3 ion exchange system shown schematically happened. If there is no circuit ion exchanger system 31, then in the pure water flow 18 the dashed lines indicated by a total of 32 ion exchange routes (cation exchangers, downstream of those anion exchangers
sind) im Haupt- oder Nebenschluß vorgesehen sein. Der Reinwasserstrom wird entweder in die Spüle 21
und/oder Standspüle 11 eingeleitet. Das aus der Spüle 21 kommende Spülwasser kann zur Wiederaufbereitung
direkt zum Sammelbehälter 30 geführt werden. Es kann aber statt dessen auch wie beim
Ausführungsbeispiel nach F i g. 2 den Osmosezellen 14 zugeführt werden, falls es sich um wertvolle chemische
Substanzen handelt, deren Rückgewinnung von Interesse ist. Die Erfindung sei an Hand eines Beispiels
der Rückgewinnung von Nickelsalzen aus Sparspüloder Standspülbädern nach galvanischen Nickelbädern
erläutert.
Das galvanische Nickel-Konzentratbad enthalteare) provided in the main or shunt. The pure water flow is either introduced into the sink 21 and / or the standing sink 11. The rinsing water coming from the sink 21 can be fed directly to the collecting container 30 for reprocessing. Instead, however, it can also be used, as in the exemplary embodiment according to FIG. 2 are fed to the osmosis cells 14 if it is valuable chemical substances whose recovery is of interest. The invention will be explained using an example of the recovery of nickel salts from economy rinsing or standing rinse baths after galvanic nickel baths.
The galvanic nickel concentrate bath contains
Nickelsulfat 300 g/lNickel sulfate 300 g / l
Nickelchlorid 60 g/lNickel chloride 60 g / l
Borsäure 40 g/lBoric acid 40 g / l
Ausschleppung ins Standspülbad
Nickelsulfat und -chlorid, Anreicherung bis 3500 mg/1Carry-out into the standing rinse
Nickel sulphate and chloride, enrichment up to 3500 mg / 1
Borsäure 500 mg/1Boric acid 500 mg / l
Dieses Sparspülbad wird in die Osmose-Anlage eingespeist. Es betragenThis economy rinsing bath is fed into the osmosis system. It amount to
Borsäure Nickel sulphate and chloride.
Boric acid
650 mg/17700 mg / 1
650 mg / 1
150 mg/165 mg / 1
150 mg / 1
Das beschriebene Verfahren ist für vielseitige ίο Anwendungszwecke einsetzbar und nicht nur auf die Rückgewinnung von Metallen, wie Nickel oder Edelmetalle, beschränkt. Es läßt sich beispielsweise auch zur Rückgewinnung von Proteinen oder Milchzucker aus Molke verwenden. Es ist auch dann mit Vorteil einsetzbar, wenn es für den Verfahrensablauf sehr wichtig ist, daß eine bestimmte Konzentration in der Standspüle nicht überschritten wird, z. B. wenn eine starke Anreicherung einer chemischen Substanz dazu führen könnte, daß die Werkstückoberfläche angegriffen wird oder sich auf dieser durch starken Niederschlag Flecken bilden, wie es z. B. nach Galvanisierbädern der Fall ist. Durch die Aufbereitung des Spülwassers aus der Standspüle ist eine Konstanthaltung der Konzentration möglich.The method described can be used for a wide range of purposes and not just for the Recovery of metals such as nickel or precious metals is limited. It can be, for example can also be used to recover proteins or milk sugar from whey. It is also then with Can be used advantageously when it is very important for the process sequence that a certain concentration is not exceeded in the standing sink, z. B. when there is a strong accumulation of a chemical substance could lead to the workpiece surface being attacked or being affected by strong Precipitation spots form, as it is e.g. B. is the case after electroplating baths. By processing The concentration of the rinse water from the standing sink can be kept constant.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (14)
nachgeordnet ist. 30 Diese Aufgabe wird gemäß der Erfindung dadurch6. Apparatus for carrying out the process processing and the chemical industry, thought according to claim 1, characterized in that in which the recovery process expediently the rinsing bath (11, 21) an osmosis cell unit (14) is to be used at the waste water source.
is subordinate. This object is achieved according to the invention
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2230243 | 1972-06-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2230243B1 true DE2230243B1 (en) | 1973-10-04 |
Family
ID=5848331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2230243A Pending DE2230243B1 (en) | 1972-06-21 | 1972-06-21 | Process for the recovery of valuable materials from industrial bobbins |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS4984904A (en) |
AT (1) | AT337655B (en) |
CH (1) | CH574261A5 (en) |
DE (1) | DE2230243B1 (en) |
FR (1) | FR2189523A1 (en) |
IT (1) | IT986540B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2348984A1 (en) * | 1976-04-19 | 1977-11-18 | Nippon Paint Co Ltd | PROCESS FOR THE PHOSPHATATION TREATMENT OF IRON AND STEEL |
FR2444997A1 (en) * | 1978-12-22 | 1980-07-18 | Babcock Brown Boveri Reaktor | Boron removal from nuclear reactor coolant - by passing side stream through reverse osmosis unit |
DE4229061A1 (en) * | 1992-09-01 | 1994-03-03 | Sep Tech Studien | Values and water recovery from aq. process liq. - by membrane distillation giving recyclable concentrate and distillate usuable instead of deionised water |
DE102013214981A1 (en) * | 2013-07-31 | 2015-02-05 | Krones Ag | Process and apparatus for the treatment of valuable materials for mines |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5523112B2 (en) * | 1974-09-06 | 1980-06-20 | ||
JPS57207585A (en) * | 1981-06-15 | 1982-12-20 | Teijin Ltd | Treatment of rinsing water for plating |
DE10240350B4 (en) * | 2002-08-28 | 2005-05-12 | Atotech Deutschland Gmbh | Apparatus and method for regenerating an electroless plating bath |
EP1884278A1 (en) * | 2006-07-24 | 2008-02-06 | ATOTECH Deutschland GmbH | Apparatus and method for rinsing of liquid from work pieces |
JP6001404B2 (en) * | 2012-09-28 | 2016-10-05 | Dowaテクノロジー株式会社 | Method for recovering silver from plating wastewater |
-
1972
- 1972-06-21 DE DE2230243A patent/DE2230243B1/en active Pending
-
1973
- 1973-06-08 CH CH833873A patent/CH574261A5/xx not_active IP Right Cessation
- 1973-06-19 AT AT539973A patent/AT337655B/en not_active IP Right Cessation
- 1973-06-20 IT IT68847/73A patent/IT986540B/en active
- 1973-06-21 FR FR7322638A patent/FR2189523A1/en active Granted
- 1973-06-21 JP JP48070374A patent/JPS4984904A/ja active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2348984A1 (en) * | 1976-04-19 | 1977-11-18 | Nippon Paint Co Ltd | PROCESS FOR THE PHOSPHATATION TREATMENT OF IRON AND STEEL |
FR2444997A1 (en) * | 1978-12-22 | 1980-07-18 | Babcock Brown Boveri Reaktor | Boron removal from nuclear reactor coolant - by passing side stream through reverse osmosis unit |
DE4229061A1 (en) * | 1992-09-01 | 1994-03-03 | Sep Tech Studien | Values and water recovery from aq. process liq. - by membrane distillation giving recyclable concentrate and distillate usuable instead of deionised water |
DE102013214981A1 (en) * | 2013-07-31 | 2015-02-05 | Krones Ag | Process and apparatus for the treatment of valuable materials for mines |
Also Published As
Publication number | Publication date |
---|---|
IT986540B (en) | 1975-01-30 |
FR2189523A1 (en) | 1974-01-25 |
FR2189523B3 (en) | 1976-06-18 |
CH574261A5 (en) | 1976-04-15 |
AT337655B (en) | 1977-07-11 |
JPS4984904A (en) | 1974-08-15 |
ATA539973A (en) | 1976-11-15 |
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Legal Events
Date | Code | Title | Description |
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B1 | Publication of the examined application without previous publication of unexamined application |