Process for reclaiming used oil coolants
The treatment of used coolants comprises the addition of an alkali or acid to the oil to give a pH ≤ 3 or ≥ 10. By means of two electrodes the solution is then electrolysed using a voltage of 10-20 V, a current of 15-25 A and a current density of 1-5 A/dm . The consumption (C) is 15-25 wh/l. The emu...
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| creator | IPINAZAR ALONSO, ENRIQUE SOLOZABAL ECHEVARRIA, RODOLFO ALAVA MARQUINEZ, INAKI OTAOLA GONZALEZ, JOSE MARIA MUGICA IRAOLA, JUAN CARLOS |
| description | The treatment of used coolants comprises the addition of an alkali or acid to the oil to give a pH ≤ 3 or ≥ 10. By means of two electrodes the solution is then electrolysed using a voltage of 10-20 V, a current of 15-25 A and a current density of 1-5 A/dm . The consumption (C) is 15-25 wh/l. The emulsion is destabilised and the separated oil can be withdrawn. 1-3 g/l of iron chloride (FeCl2) is added to the remaining liquid and the solution is electrolysed at 9-14 V and a current density ≥ 4 A/dm . The consumption is 60-100 wh/l and the final pH is ≤ 3 or ≥ 10. Alkali is then added to a pH of 8-9 and a muddy precipitate is obtained which is separated from a residual water effluent only slightly polluted by oil and organic compounds.
Processus de traitement d'huiles usées de refroidissements, de celles contenant une émulsion eau-huile et une dissolution d'eau-composés organiques, qui se compose de trois phases consécutives : a) à l'huile de refroidissement on rajoute un alcali ou un acide jusqu'à obtenir un pH de : pH = 10, on électrolyse, l'émulsion devenant instable, ce qui permet que soit retirée l'huile flottante; b) en rajoutant au liquide restant, du chlorure de fer Cl2Fe en quantité de 1 ÷ 3 g/l et en électrolysant on obtient un pH final de pH = 10, pour procéder à, c) son alcalinisation pour arriver à un pH de 8 |
| format | Patent |
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Processus de traitement d'huiles usées de refroidissements, de celles contenant une émulsion eau-huile et une dissolution d'eau-composés organiques, qui se compose de trois phases consécutives : a) à l'huile de refroidissement on rajoute un alcali ou un acide jusqu'à obtenir un pH de : pH <= 3 ou pH >= 10, on électrolyse, l'émulsion devenant instable, ce qui permet que soit retirée l'huile flottante; b) en rajoutant au liquide restant, du chlorure de fer Cl2Fe en quantité de 1 ÷ 3 g/l et en électrolysant on obtient un pH final de pH <= 3 ou pH >= 10, pour procéder à, c) son alcalinisation pour arriver à un pH de 8 <= pH <= 9 grâce à quoi on obtient un précipité fangeux qui est retiré et de l'eau légèrement polluée par de l'huile et des composés organiques. S'applique dans le traitement de déchets.</description><edition>6</edition><language>eng ; fre ; ger</language><subject>CHEMISTRY ; FUELS ; LUBRICANTS ; LUBRICATING COMPOSITIONS ; METALLURGY ; PEAT ; PERFORMING OPERATIONS ; PETROLEUM, GAS OR COKE INDUSTRIES ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TECHNICAL GASES CONTAINING CARBON MONOXIDE ; TRANSPORTING ; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION</subject><creationdate>1999</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990203&DB=EPODOC&CC=EP&NR=0894847A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990203&DB=EPODOC&CC=EP&NR=0894847A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>IPINAZAR ALONSO, ENRIQUE</creatorcontrib><creatorcontrib>SOLOZABAL ECHEVARRIA, RODOLFO</creatorcontrib><creatorcontrib>ALAVA MARQUINEZ, INAKI</creatorcontrib><creatorcontrib>OTAOLA GONZALEZ, JOSE MARIA</creatorcontrib><creatorcontrib>MUGICA IRAOLA, JUAN CARLOS</creatorcontrib><title>Process for reclaiming used oil coolants</title><description>The treatment of used coolants comprises the addition of an alkali or acid to the oil to give a pH ≤ 3 or ≥ 10. By means of two electrodes the solution is then electrolysed using a voltage of 10-20 V, a current of 15-25 A and a current density of 1-5 A/dm . The consumption (C) is 15-25 wh/l. The emulsion is destabilised and the separated oil can be withdrawn. 1-3 g/l of iron chloride (FeCl2) is added to the remaining liquid and the solution is electrolysed at 9-14 V and a current density ≥ 4 A/dm . The consumption is 60-100 wh/l and the final pH is ≤ 3 or ≥ 10. Alkali is then added to a pH of 8-9 and a muddy precipitate is obtained which is separated from a residual water effluent only slightly polluted by oil and organic compounds.
Processus de traitement d'huiles usées de refroidissements, de celles contenant une émulsion eau-huile et une dissolution d'eau-composés organiques, qui se compose de trois phases consécutives : a) à l'huile de refroidissement on rajoute un alcali ou un acide jusqu'à obtenir un pH de : pH <= 3 ou pH >= 10, on électrolyse, l'émulsion devenant instable, ce qui permet que soit retirée l'huile flottante; b) en rajoutant au liquide restant, du chlorure de fer Cl2Fe en quantité de 1 ÷ 3 g/l et en électrolysant on obtient un pH final de pH <= 3 ou pH >= 10, pour procéder à, c) son alcalinisation pour arriver à un pH de 8 <= pH <= 9 grâce à quoi on obtient un précipité fangeux qui est retiré et de l'eau légèrement polluée par de l'huile et des composés organiques. S'applique dans le traitement de déchets.</description><subject>CHEMISTRY</subject><subject>FUELS</subject><subject>LUBRICANTS</subject><subject>LUBRICATING COMPOSITIONS</subject><subject>METALLURGY</subject><subject>PEAT</subject><subject>PERFORMING OPERATIONS</subject><subject>PETROLEUM, GAS OR COKE INDUSTRIES</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>TECHNICAL GASES CONTAINING CARBON MONOXIDE</subject><subject>TRANSPORTING</subject><subject>USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAIKMpPTi0uVkjLL1IoSk3OSczMzcxLVygtTk1RyM_MUUjOz89JzCsp5mFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BBhaWJhYm5o6GxkQoAQCEJigA</recordid><startdate>19990203</startdate><enddate>19990203</enddate><creator>IPINAZAR ALONSO, ENRIQUE</creator><creator>SOLOZABAL ECHEVARRIA, RODOLFO</creator><creator>ALAVA MARQUINEZ, INAKI</creator><creator>OTAOLA GONZALEZ, JOSE MARIA</creator><creator>MUGICA IRAOLA, JUAN CARLOS</creator><scope>EVB</scope></search><sort><creationdate>19990203</creationdate><title>Process for reclaiming used oil coolants</title><author>IPINAZAR ALONSO, ENRIQUE ; SOLOZABAL ECHEVARRIA, RODOLFO ; ALAVA MARQUINEZ, INAKI ; OTAOLA GONZALEZ, JOSE MARIA ; MUGICA IRAOLA, JUAN CARLOS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0894847A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1999</creationdate><topic>CHEMISTRY</topic><topic>FUELS</topic><topic>LUBRICANTS</topic><topic>LUBRICATING COMPOSITIONS</topic><topic>METALLURGY</topic><topic>PEAT</topic><topic>PERFORMING OPERATIONS</topic><topic>PETROLEUM, GAS OR COKE INDUSTRIES</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>TECHNICAL GASES CONTAINING CARBON MONOXIDE</topic><topic>TRANSPORTING</topic><topic>USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION</topic><toplevel>online_resources</toplevel><creatorcontrib>IPINAZAR ALONSO, ENRIQUE</creatorcontrib><creatorcontrib>SOLOZABAL ECHEVARRIA, RODOLFO</creatorcontrib><creatorcontrib>ALAVA MARQUINEZ, INAKI</creatorcontrib><creatorcontrib>OTAOLA GONZALEZ, JOSE MARIA</creatorcontrib><creatorcontrib>MUGICA IRAOLA, JUAN CARLOS</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>IPINAZAR ALONSO, ENRIQUE</au><au>SOLOZABAL ECHEVARRIA, RODOLFO</au><au>ALAVA MARQUINEZ, INAKI</au><au>OTAOLA GONZALEZ, JOSE MARIA</au><au>MUGICA IRAOLA, JUAN CARLOS</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for reclaiming used oil coolants</title><date>1999-02-03</date><risdate>1999</risdate><abstract>The treatment of used coolants comprises the addition of an alkali or acid to the oil to give a pH ≤ 3 or ≥ 10. By means of two electrodes the solution is then electrolysed using a voltage of 10-20 V, a current of 15-25 A and a current density of 1-5 A/dm . The consumption (C) is 15-25 wh/l. The emulsion is destabilised and the separated oil can be withdrawn. 1-3 g/l of iron chloride (FeCl2) is added to the remaining liquid and the solution is electrolysed at 9-14 V and a current density ≥ 4 A/dm . The consumption is 60-100 wh/l and the final pH is ≤ 3 or ≥ 10. Alkali is then added to a pH of 8-9 and a muddy precipitate is obtained which is separated from a residual water effluent only slightly polluted by oil and organic compounds.
Processus de traitement d'huiles usées de refroidissements, de celles contenant une émulsion eau-huile et une dissolution d'eau-composés organiques, qui se compose de trois phases consécutives : a) à l'huile de refroidissement on rajoute un alcali ou un acide jusqu'à obtenir un pH de : pH <= 3 ou pH >= 10, on électrolyse, l'émulsion devenant instable, ce qui permet que soit retirée l'huile flottante; b) en rajoutant au liquide restant, du chlorure de fer Cl2Fe en quantité de 1 ÷ 3 g/l et en électrolysant on obtient un pH final de pH <= 3 ou pH >= 10, pour procéder à, c) son alcalinisation pour arriver à un pH de 8 <= pH <= 9 grâce à quoi on obtient un précipité fangeux qui est retiré et de l'eau légèrement polluée par de l'huile et des composés organiques. S'applique dans le traitement de déchets.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY FUELS LUBRICANTS LUBRICATING COMPOSITIONS METALLURGY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION |
| title | Process for reclaiming used oil coolants |
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