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公开(公告)号：EP1712608A1
公开(公告)日：2006-10-18
申请号：EP04766956.9
申请日：2004-09-23
IPC分类号： C10M175/02
CPC分类号： C10M175/02 , C10M175/0016 , C10M175/0033
摘要： The present invention refers to a method for the regeneration of used petroleum oils which comprises the following steps:
(a) demetallization of the used mineral oil by means of chemical treatment of said oil with an aqueous solution of a chemical reagent containing anions which form low solubility salts with the metals of the oil, followed by the separation of the demetallized oil;
(b) distillation of the demetallized oil obtained in step (a) at atmospheric pressure and in the presence of alkaline hydroxides; and
(c) distillation of the bottom liquid obtained in the atmospheric distillation in step (b) under vacuum and in the presence of alkaline hydroxides to obtain lubricant bases.摘要翻译： 本发明涉及一种用于再生二氧化石油的方法，包括以下步骤：（a）通过用含有阴离子的化学试剂的水溶液对所述油进行化学处理使所述矿物油脱金属，所述阴离子形成低 与油的金属溶解盐，然后分离脱金属油; （b）在大气压和碱性氢氧化物的存在下蒸馏步骤（a）中获得的脱金属油; 和（c）在真空下和在碱性氢氧化物存在下，在步骤（b）的常压蒸馏中得到的底部液体蒸馏得到润滑剂基质。
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公开(公告)号：EP1712608B1
公开(公告)日：2009-08-26
申请号：EP04766956.9
申请日：2004-09-23
IPC分类号： C10M175/02
CPC分类号： C10M175/02 , C10M175/0016 , C10M175/0033
摘要： The invention relates to a method for the regeneration of used oils of petroleum origin. The inventive method comprises the following steps: (a) stripping of the used mineral oil, in which said oil is chemically treated with an aqueous solution comprising a chemical reagent containing anions which form salts that are poorly soluble with the metals of the oil, followed by separation of the stripped oil; (b) distillation of the stripped oil obtained in step (a) at atmospheric pressure and in the presence of alkaline hydroxides; and (c) distillation of the liquid residue obtained during the atmospheric distillation in step (b) under a vacuum and in the presence of alkaline hydroxides in order to obtain lubricant bases.
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3.发明授权
公开(公告)号：EP1559768B1
公开(公告)日：2006-04-26
申请号：EP02751178.1
申请日：2002-07-15
CPC分类号： C10G53/16 , C10G53/04 , C10G53/12 , C10G2300/1007 , C10G2300/44 , C10G2400/10
摘要： The invention relates to a method of regenerating used oils of petroleum origin by means of extraction with aliphatic solvents. The inventive method is characterised in that, once the solvent has been eliminated from the extract, it comprises the following processes: a) flash vaporisation, in a continuous manner in the evaporator at atmospheric pressure or close thereto, in order to separate the light ends in the presence of small quantities of a basic compound or a reducing compound or a mixture of both; b) continuous distillation of the bottom liquid obtained in step a) in a vacuum and at a moderate temperatures in a fractionating column, in the presence of a basic compound or a reducing agent or a mixture of both and involving the recirculation from the bottom of the column to the feed of same. In this way, the vacuum gas oil or spindle oil and the lubricating bases are separated by means of lateral extractions while an asphaltic component or fuel oil is separated at the base.
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