EP0926226A1 - Synthetic oil filtration with a silico-calcareous product - Google Patents

Synthetic oil filtration with a silico-calcareous product Download PDF

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Publication number
EP0926226A1
EP0926226A1 EP97870202A EP97870202A EP0926226A1 EP 0926226 A1 EP0926226 A1 EP 0926226A1 EP 97870202 A EP97870202 A EP 97870202A EP 97870202 A EP97870202 A EP 97870202A EP 0926226 A1 EP0926226 A1 EP 0926226A1
Authority
EP
European Patent Office
Prior art keywords
silico
product
calcareous
synthetic oil
oil filtration
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.)
Withdrawn
Application number
EP97870202A
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German (de)
French (fr)
Inventor
Armand Heyeres
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.)
Cs Filtration Sprl
Original Assignee
Cs Filtration Sprl
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 Cs Filtration Sprl filed Critical Cs Filtration Sprl
Priority to EP97870202A priority Critical patent/EP0926226A1/en
Publication of EP0926226A1 publication Critical patent/EP0926226A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
    • C10M175/0075—Working-up used lubricants to recover useful products ; Cleaning synthetic oil based

Definitions

  • the invention relates to synthetic oils, the filtering of which, thanks to the lime-silicate product described below, allows sanitation.
  • this problem is solved by means of a lime-silica filtering product composed of the formula of: 50% CaCO 3 , 35% SiO 2 , 12% Al 2 (Si 4 0 10 ) ( OH) 2 .nH 2 O and 3% MICA, poured into oil at a rate of 10 g / l.
  • the filtration according to the invention can be used for both cold and hot synthetic oils.
  • the dose of added lime-sand filter varies from 10 to 50 g / l.
  • the silico-limestone mineral product must be heat treated at a temperature of 220 ° C in order to remove pore water and pores from inside the product particles. As soon as the product found at around 20 ° C, it is ground to 50 ⁇ m (microns).
  • a quantity equivalent to 10 g is poured into the fatty oil: L of the lime-silica product, reduced to 50 ⁇ m, suspension and decantation. After 24 hours, the drawdown rate of extractable fats is around 95%.
  • a mixed water / oil phase is decanted naturally and the aqueous phase is drawn off using a large capacity syringe or under vacuum pump.
  • the quantity of synthetic oil and grease is determined by extraction of the aqueous effluent using hexane, followed by gravimetry. After treatment with an amount equivalent to 10g / L of a silica-limestone powder (50 ⁇ m) in suspension and decantation, the effluent is subjected to the same dosage. The difference in measurements thus obtained directly gives the residual quantity of fat contained in the discharge effluent.
  • a COD measurement accompanies the expression of the final result in order to judge the validity of the purification in the event of discharge of the treated effluent.

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)
  • Water Treatment By Sorption (AREA)

Abstract

Cleaning used synthetic oils comprises the use of a silico-calcareous material to remove fatty material. The mineralogical silico-calcareous product is of the formula CaCO3, SiO2, Al2(Si4O10)(OH)2.nH2O, mica in the proportions 50%, 35%, 12% and 3% respectively. This is milled to a particle size of 50 mu m and added at a concentration of 10-50 g/l. The degree of attenuation of fatty material is 95%. Before use the product is thermally treated at 220 degrees C to remove interstitial water.

Description

L'invention concerne les huiles synthétiques dont le filtrage, grâce au produit silico-calcaire décrit ci-dessous, permet l'assainissement.The invention relates to synthetic oils, the filtering of which, thanks to the lime-silicate product described below, allows sanitation.

La plupart des moteurs industriels, laminoirs, filtres, pompes et transformateurs électriques utilisent des huiles synthétiques pour leur refroidissement, préférant cette méthode au refroidissement par eau ou par air. Ce procédé pose toutefois le problème de la qualité de l'huile qui se souille durant son utilisation, notamment par l'adjonction de matière grasse. Cette détérioration de l'huile entraíne une diminution des qualités et de la capacité de refroidissement et de lubrification des huiles.
Actuellement aucun produit ne permet une séparation totale des huiles et des matières grasses. L'invention vise à permettre l'assainissement quasi complet des huiles usagées.Most industrial motors, rolling mills, filters, pumps and electrical transformers use synthetic oils for their cooling, preferring this method to water or air cooling. This process, however, poses the problem of the quality of the oil which becomes dirty during its use, in particular by adding fat. This deterioration of the oil leads to a decrease in the qualities and the cooling and lubrication capacity of the oils.
Currently no product allows a total separation of oils and fats. The invention aims to allow almost complete sanitation of waste oils.

Conformément à la présente invention, ce problème est résolu au moyen d'un produit filtrant silico-calcaire composé de la formule de : 50% de CaCO3, 35% de SiO2, 12% de Al2 (Si4010) (OH) 2.nH2 O et 3% de MICA, versé dans l'huile à raison de 10g/l.In accordance with the present invention, this problem is solved by means of a lime-silica filtering product composed of the formula of: 50% CaCO 3 , 35% SiO 2 , 12% Al 2 (Si 4 0 10 ) ( OH) 2 .nH 2 O and 3% MICA, poured into oil at a rate of 10 g / l.

La filtration selon l'invention peut être employée tant pour les huiles de synthèses froides que chaudes.The filtration according to the invention can be used for both cold and hot synthetic oils.

La dose de filtrant silico-calcaire ajouté varie de 10 à 50 g/l.The dose of added lime-sand filter varies from 10 to 50 g / l.

Le produit minéralogique silico-calcaire doit être traité thermiquement à une température de 220°C afin de chasser l'eau interstitielle et des pores se trouvant à l'intérieur des particules du produit. Dès que le produit se trouve à environ 20°C, il est broyé à 50µm (microns).The silico-limestone mineral product must be heat treated at a temperature of 220 ° C in order to remove pore water and pores from inside the product particles. As soon as the product found at around 20 ° C, it is ground to 50 µm (microns).

Dans l'huile grasse est versé une quantité équivalente à 10g :L du produit silico-calcaire, réduit à 50µm, en suspension et décantation. Après 24 heures, le taux de rabattement des matières grasses extractibles est d'environ 95%.A quantity equivalent to 10 g is poured into the fatty oil: L of the lime-silica product, reduced to 50 μm, suspension and decantation. After 24 hours, the drawdown rate of extractable fats is around 95%.

ExempleExample

Une phase mixte eau/huile est décantée naturellement et la phase acqueuse est soutirée à l'aide d'une seringue de grande capacité ou sous pompe à vide. La quantité d'huile et de graisse de synthèse est déterminée par extraction de l'effluent aqueux au moyen d'hexane, suivie d'une gravimétrie. Après traitement au moyen d'une quantité équivalente à 10g /L d'une poudre silico-calcaire (50µm) en suspension et décantation, l'effluent est soumis au même dosage. La différence des mesures ainsi obtenue donne directement la quantité résiduaire en matière grasse contenue dans l'effluent de rejet. Une mesure de DCO accompagne l'expression du résultat final afin de juger de la validité de l'épuration en cas de rejet de l'effluent traité. H.G. initiale (ppm) H.G. finale (ppm) DCO résiduaire (mg O2/l) 3122 289 320 3001 186 301 3225 154 259 3186 175 286 3489 167 299 3001 183 246 3005 158 300 3179 143 283 3245 176 273 Moyenne 3161 181 285 Taux de rabattement moyen exprimé en H.G. (toutes natures confondues) : 94,2 %, exprimé en DCO : 86,5 % A mixed water / oil phase is decanted naturally and the aqueous phase is drawn off using a large capacity syringe or under vacuum pump. The quantity of synthetic oil and grease is determined by extraction of the aqueous effluent using hexane, followed by gravimetry. After treatment with an amount equivalent to 10g / L of a silica-limestone powder (50µm) in suspension and decantation, the effluent is subjected to the same dosage. The difference in measurements thus obtained directly gives the residual quantity of fat contained in the discharge effluent. A COD measurement accompanies the expression of the final result in order to judge the validity of the purification in the event of discharge of the treated effluent. Initial HG (ppm) Final HG (ppm) Residual COD (mg O 2 / l) 3122 289 320 3001 186 301 3225 154 259 3186 175 286 3489 167 299 3001 183 246 3005 158 300 3179 143 283 3245 176 273 Average 3161 181 285 Average drawdown rate expressed in HG (all types combined): 94.2%, expressed in COD: 86.5%

Les différents taux de rabattement témoignent de l'efficacité du produit dans les quantités précitées pour l'assainissement de ce type particulier d'effluent.The different drawdown rates testify to the effectiveness of the product in the aforementioned quantities for sanitation of this particular type of effluent.

Claims (1)

Filtration des huiles synthétiques par produit minéralogique silico-calcaire composé de la formule CaCO3, SiO2, AL2 (SI4O10) (OH) 2.nH 2O, MICA broyé à 50µm ajouté à raison de 10 à 50g/l permet l'assainissement de l'effluent à un taux de rabattement des matières grasses extractibles d'environ 95 %.Filtration of synthetic oils by silico-limestone mineral product composed of the formula CaCO 3 , SiO 2 , AL 2 (SI 4 O 10 ) (OH) 2 .nH 2 O, MICA crushed at 50 µm added at a rate of 10 to 50 g / l allows the effluent to be sanitized at an extractable fat reduction rate of around 95%.
EP97870202A 1997-12-22 1997-12-22 Synthetic oil filtration with a silico-calcareous product Withdrawn EP0926226A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97870202A EP0926226A1 (en) 1997-12-22 1997-12-22 Synthetic oil filtration with a silico-calcareous product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97870202A EP0926226A1 (en) 1997-12-22 1997-12-22 Synthetic oil filtration with a silico-calcareous product

Publications (1)

Publication Number Publication Date
EP0926226A1 true EP0926226A1 (en) 1999-06-30

Family

ID=8231076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97870202A Withdrawn EP0926226A1 (en) 1997-12-22 1997-12-22 Synthetic oil filtration with a silico-calcareous product

Country Status (1)

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EP (1) EP0926226A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2157166A5 (en) * 1971-10-20 1973-06-01 Carbon Charbons Actifs Adsorbent/absorbent silica granules prodn - by heating agglomerated clay, and treating with acid
DE2856248A1 (en) * 1978-12-27 1980-07-17 Anlagen Und Filterbau Gmbh & C Sepg. mixt. contg. organic material - esp. oil-in-water emulsion, by filtering through densely packed oleophilic adsorbent
FR2453211A1 (en) * 1979-04-02 1980-10-31 Rhone Poulenc Ind Regeneration of used lubricating oil - by ultrafiltration and treatment with silica adsorbent
US4756825A (en) * 1985-12-06 1988-07-12 Leybold-Heraeus Gmbh Apparatus for purifying hydrogen-free fluorinated lubricants
EP0307716A1 (en) * 1987-09-17 1989-03-22 Takano Corporation Method for removing traces of water from power transformer oil
DE4142829A1 (en) * 1991-12-23 1993-06-24 Rwe Entsorgung Ag METHOD FOR CLEANING USED LUBRICANTS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2157166A5 (en) * 1971-10-20 1973-06-01 Carbon Charbons Actifs Adsorbent/absorbent silica granules prodn - by heating agglomerated clay, and treating with acid
DE2856248A1 (en) * 1978-12-27 1980-07-17 Anlagen Und Filterbau Gmbh & C Sepg. mixt. contg. organic material - esp. oil-in-water emulsion, by filtering through densely packed oleophilic adsorbent
FR2453211A1 (en) * 1979-04-02 1980-10-31 Rhone Poulenc Ind Regeneration of used lubricating oil - by ultrafiltration and treatment with silica adsorbent
US4756825A (en) * 1985-12-06 1988-07-12 Leybold-Heraeus Gmbh Apparatus for purifying hydrogen-free fluorinated lubricants
EP0307716A1 (en) * 1987-09-17 1989-03-22 Takano Corporation Method for removing traces of water from power transformer oil
DE4142829A1 (en) * 1991-12-23 1993-06-24 Rwe Entsorgung Ag METHOD FOR CLEANING USED LUBRICANTS

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