ES2009344A6 - Process and device for purifying degreasing solutions. - Google Patents

Process and device for purifying degreasing solutions.

Info

Publication number
ES2009344A6
ES2009344A6 ES8802445A ES8802445A ES2009344A6 ES 2009344 A6 ES2009344 A6 ES 2009344A6 ES 8802445 A ES8802445 A ES 8802445A ES 8802445 A ES8802445 A ES 8802445A ES 2009344 A6 ES2009344 A6 ES 2009344A6
Authority
ES
Spain
Prior art keywords
degreasing
solution
purifying
degreasing solution
grease
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.)
Expired
Application number
ES8802445A
Other languages
Spanish (es)
Inventor
Rolf Reuter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RRM ENERGY GmbH
Original Assignee
RRM ENERGY GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RRM ENERGY GmbH filed Critical RRM ENERGY GmbH
Publication of ES2009344A6 publication Critical patent/ES2009344A6/en
Expired legal-status Critical Current

Links

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
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/042—Breaking emulsions by changing the temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/08—Thickening liquid suspensions by filtration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Lubricants (AREA)

Abstract

A process for removing emulsified oil and grease from used degreasing solutions from a degreasing installation comprises the following steps: (a) heating the used degreasing solution to temperatures in the range of 80 DEG to 100 DEG , (16) cooling the hot degreasing solution, (c) filtering the cold degreasing solution through a finer filter (50) to remove oil and grease, (d) adjusting the residual solution so obtained until a degreasing solution of the desired composition is obtained, and (e) returning the purified and adjusted degreasing solution to the degreasing installation. A device for carrying out this process is also described.
ES8802445A 1987-08-04 1988-08-04 Process and device for purifying degreasing solutions. Expired ES2009344A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3725819A DE3725819A1 (en) 1987-08-04 1987-08-04 METHOD AND DEVICE FOR CLEANING DEGREASING SOLUTIONS

Publications (1)

Publication Number Publication Date
ES2009344A6 true ES2009344A6 (en) 1989-09-16

Family

ID=6333026

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8802445A Expired ES2009344A6 (en) 1987-08-04 1988-08-04 Process and device for purifying degreasing solutions.

Country Status (9)

Country Link
EP (1) EP0373174A1 (en)
JP (1) JPH02504652A (en)
AU (1) AU2086088A (en)
BR (1) BR8807640A (en)
DE (1) DE3725819A1 (en)
DK (1) DK28290A (en)
ES (1) ES2009344A6 (en)
FI (1) FI900505A0 (en)
WO (1) WO1989001056A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4001851A1 (en) * 1990-01-23 1991-07-25 Berghof Elektronik Produktions Treating hot aq. degreasing liq. for reuse
AT399515B (en) * 1993-02-17 1995-05-26 Oekologia Beteiligungs Handels METHOD AND DEVICE FOR CLEANING DEGREASING AGENTS
DE10137388A1 (en) * 2001-07-31 2003-02-13 Feuerverzinkung Hannover Gmbh Process for the preparation of degreasing baths
DE202011103803U1 (en) * 2011-07-27 2011-10-26 Alexander Maier Evaporator for process and / or industrial wastewater and apparatus for the treatment of process and / or industrial wastewater

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930879A (en) * 1974-03-20 1976-01-06 Rexnord Inc. Closed alkaline wash water system for cleaning metal parts
JPS54149330A (en) * 1978-05-15 1979-11-22 Nippon Paint Co Ltd Regenerating method for surfactant-containing, oil- bearing degreasing solution
JPS5539628A (en) * 1978-09-14 1980-03-19 Nippon Telegr & Teleph Corp <Ntt> Photoluminescence measuring method for semiconductor layer
DE2927275C2 (en) * 1979-07-06 1981-12-03 Daimler-Benz Ag, 7000 Stuttgart Process for the thermal splitting of oil / water emulsions
DE2927873A1 (en) * 1979-07-11 1981-02-05 Senkingwerk Gmbh Kg POST WASHING MACHINE
DE3247431A1 (en) * 1982-12-22 1984-06-28 Henkel KGaA, 4000 Düsseldorf METHOD FOR REGENERATION OR FOR RECYCLING AQUEOUS DEGREASING AND CLEANING SOLUTIONS
JPS6050200A (en) * 1983-08-30 1985-03-19 Nippon Kokan Kk <Nkk> Apparatus for cleaning up washing liquid for electrolytic cleaning
JPS61502966A (en) * 1984-08-11 1986-12-18 レンツラ−　エドガ− How to regenerate degreasing baths from neutral to alkaline
US4728404A (en) * 1984-08-11 1988-03-01 Edgar Renzler Process for the separation of emulsions containing water as a continuous phase and device for the application of the process
DE3512207A1 (en) * 1985-04-03 1986-10-16 Dürr GmbH, 7000 Stuttgart METHOD AND DEVICE FOR REPROCESSING AQUEOUS, OIL AND FATTY CLEANING SOLUTIONS

Also Published As

Publication number Publication date
BR8807640A (en) 1990-06-12
DK28290A (en) 1990-03-27
EP0373174A1 (en) 1990-06-20
WO1989001056A1 (en) 1989-02-09
FI900505A0 (en) 1990-02-01
DE3725819A1 (en) 1989-02-16
AU2086088A (en) 1989-03-01
JPH02504652A (en) 1990-12-27
DK28290D0 (en) 1990-02-02

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