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PT94582A - Processo para a desmetalizacao de oleos - Google Patents

Processo para a desmetalizacao de oleos Download PDF

Info

Publication number
PT94582A
PT94582A PT94582A PT9458290A PT94582A PT 94582 A PT94582 A PT 94582A PT 94582 A PT94582 A PT 94582A PT 9458290 A PT9458290 A PT 9458290A PT 94582 A PT94582 A PT 94582A
Authority
PT
Portugal
Prior art keywords
oil
heating
temperature
filtration
oils
Prior art date
Application number
PT94582A
Other languages
English (en)
Original Assignee
Friedman Misha
Giora Honig
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 Friedman Misha, Giora Honig filed Critical Friedman Misha
Priority to PT94582A priority Critical patent/PT94582A/pt
Priority to ZA913884A priority patent/ZA913884B/xx
Priority to PCT/GB1991/001012 priority patent/WO1992001033A1/en
Priority to AU80741/91A priority patent/AU8074191A/en
Publication of PT94582A publication Critical patent/PT94582A/pt

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M175/00Working-up used lubricants to recover useful products ; Cleaning
    • C10M175/0016Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Claims (1)

  1. -6- 4 s
    proporção de solução caustica para óleo igual a 1:4. Se o óleo tratado se destina a ser usado como óleo combustível, o seu teor máximo de sódio é 15 ppm, pelo que tem de ser lavado com água contendo 0,5% em peso de ácido sulfúrico. A filtraçao é a melhor maneira para eliminar o precipitado residual do óleo tratado. No entanto, os óleos tratados são muito difíceis de filtrar devido âs reduzidas dimensões das partículas de precipitado (inferiores a 1 micrometro). 0 Requerente descobriu que, mediante aquecimento a 130 a 140°0, o precipitado coagula e a filtraçao do óleo torna-se relativa-mente fácil. As dimensões do vaso de aquecimento devem proporcionar um tempo de residência de cerca de 1 hora. REIVINDICAÇÃO Processo para a desmetalização de óleos, caracterizado pelo jfacto de compreender as seguintes operaçoes: a) aquecimento do óleo a desmetalizar a uma temperatura compreendida entre 70°C e 130°C; b) aquecimento de uma solução aquosa contendo 3 a 6% em peso jde hidrogenossulfato de amónio e 1 a 5% em peso de ácido oxá-lico a uma temperatura superior a 70°C; c) adiçao a solução b) de etoxinonano previamente aquecido a uma temperatura mínima de 80°C; d) mistura intensa do óleo obtido em a) com a solução aquecida em c) e separaçao das fases mantendo o sistema a uma temperat superior a 80°C e e) tratamento posterior da fase oleosa por sedimentação, arras tamento por vapor, extracçao cáustica e filtraçao. Lisboa, 3 de Juiho de 1990 O Agente Oficial da Propriedade Industrial L 1^. cfcfcida v ra
PT94582A 1990-07-04 1990-07-04 Processo para a desmetalizacao de oleos PT94582A (pt)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PT94582A PT94582A (pt) 1990-07-04 1990-07-04 Processo para a desmetalizacao de oleos
ZA913884A ZA913884B (en) 1990-07-04 1991-05-23 Process for the demetallisation of oils
PCT/GB1991/001012 WO1992001033A1 (en) 1990-07-04 1991-06-21 Process for demetalizing oils
AU80741/91A AU8074191A (en) 1990-07-04 1991-06-21 Process for demetalizing oils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT94582A PT94582A (pt) 1990-07-04 1990-07-04 Processo para a desmetalizacao de oleos

Publications (1)

Publication Number Publication Date
PT94582A true PT94582A (pt) 1992-01-31

Family

ID=20084760

Family Applications (1)

Application Number Title Priority Date Filing Date
PT94582A PT94582A (pt) 1990-07-04 1990-07-04 Processo para a desmetalizacao de oleos

Country Status (4)

Country Link
AU (1) AU8074191A (pt)
PT (1) PT94582A (pt)
WO (1) WO1992001033A1 (pt)
ZA (1) ZA913884B (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL110104A (en) * 1994-06-23 1999-07-14 Corex Technologies 1993 Ltd Process for the reclamation of used lubricating oils
ES2141662B1 (es) * 1997-07-21 2000-11-16 Descontaminacion Y Eliminacion Procedimiento e instalacion para la desmetalizacion de aceites usados para su empleo como combustible.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR848356A (fr) * 1938-07-08 1939-10-27 Procédé de traitement et de régénération des huiles minérales usagées
FR895373A (fr) * 1943-02-23 1945-01-23 Procédé pour le raffinage et la régénération des huiles de graissage et autres, neuves et usées
AU533444B2 (en) * 1978-09-28 1983-11-24 Salusinszky, A.L. Regeneration of used lubricating oils

Also Published As

Publication number Publication date
WO1992001033A1 (en) 1992-01-23
ZA913884B (en) 1992-03-25
AU8074191A (en) 1992-02-04

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Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 19901008

FC3A Refusal

Effective date: 19960830