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    • 4. 发明申请
    • PROCESS FOR THE SELECTIVE REMOVAL OF MOLYBDENUM FROM A SOLUTION CONTAINING IT
    • 从含有它的溶液中选择性去除莫来石的方法
    • WO2012069625A1
    • 2012-05-31
    • PCT/EP2011/071011
    • 2011-11-25
    • ENI S.P.A.BARTOLINI, AndreaSENTIMENTI, Emilio
    • BARTOLINI, AndreaSENTIMENTI, Emilio
    • C22B3/26C22B3/20C22B7/00C22B34/22C22B34/34C01G39/00C01G39/06
    • C22B34/34C01G39/003C22B3/0031C22B3/20C22B7/007C22B7/009C22B34/225C22B34/345Y02P10/214Y02P10/23Y02P10/234Y10S210/912
    • The present invention relates to a process for selectively removing molybdenum from a solution which contains molybdenum, said process comprising the following steps: ■ bringing the solution to an acid pH lower than or equal to 3, preferably lower than or equal to 2, even more preferably lower than or equal to 0.5, by the addition of an inorganic acid; ■ adding at least one organic solvent, preferably toluene or xylene, to the solution and stirring continuously so as to create a water-organic emulsion; ■ adding to the water-organic emulsion at least one alkaline metal xanthate having the general formula MeRX, wherein R is a linear or branched alkyl group having a number of carbon atoms higher than or equal to 2, Me is an alkaline metal selected from Li, Na, K, Rb, Cs and Fr, and X is the xanthate group, so as to form a complex with molybdenum wherein the molar ratio molybdenum/alkaline metal xanthate ranges from 1/6 to 1/2, keeping the emulsion at an acid pH by the addition of an inorganic acid, and interrupting the stirring so as to allow the separation of the aqueous phase from the organic phase. The linear or branched alkyl group R preferably has a number of carbon atoms higher than or equal to 2 and lower than or equal to 12. A reductant is optionally added to the starting solution which comprises Mo and V.
    • 本发明涉及从含有钼的溶液中选择性除去钼的方法,所述方法包括以下步骤:使该溶液的酸pH低于或等于3,优选低于或等于2,甚至更多 优选低于或等于0.5,通过加入无机酸; |向溶液中加入至少一种有机溶剂,优选甲苯或二甲苯,并连续搅拌,以产生水 - 有机乳液; 向水 - 有机乳液中加入至少一种具有通式MeRX的碱金属黄原酸盐,其中R是碳原子数高于或等于2的直链或支链烷基,Me是选自Li ,Na,K,Rb,Cs和Fr,X是黄原酸酯基,以便与钼形成络合物,其中钼/碱金属黄原酸酯的摩尔比为1/6至1/2,将乳液保持在 通过加入无机酸的酸性pH,并且中断搅拌以使水相与有机相分离。 直链或支链烷基R优选具有高于或等于2且低于或等于12的碳原子数。还原剂任选地加入到包含Mo和V的起始溶液中。
    • 8. 发明申请
    • PROCESS FOR THE TREATMENT OF REFINERY PURGE STREAMS
    • 炼油厂净化流程的处理
    • WO2017109728A1
    • 2017-06-29
    • PCT/IB2016/057891
    • 2016-12-21
    • ENI S.P.A.
    • BARTOLINI, Andrea
    • C10G31/06C10G31/10C10G21/00C10G21/12C10G21/14
    • C10G31/06C10G21/003C10G21/12C10G21/14C10G31/10
    • The present invention relates to a process for the treatment of refinery purge streams, containing a hydrocarbon component in slurry phase having a boiling point higher than or equal to 140°C, characterized by the presence of quantities of asphaltenes higher than or equal to 5% by weight and characterized by the presence of a solid content higher than or equal to 5% by weight. The process provides that said purge be mixed with a suitable fluxing agent according to appropriate ratios and under certain conditions, forming a suspension with a content higher than or equal to 10% by weight of compounds having a boiling point TbP lower than or equal to 350°C. After mixing, the suspension is sent to a liquid/solid separation step which operates under suitable conditions, separating a solid phase containing a residual organic component and a solid component, called cake, and a liquid phase containing residual solids. The solid phase obtained is cooled to below 60°C, including the upper extreme, forming a granular solid which is stored and maintained at a temperature lower than or equal to 60°C.
    • 本发明涉及一种处理炼油厂吹扫气流的方法,所述方法包含在沸点高于或等于140℃的淤浆相中的烃组分,其特征在于存在 沥青质高于或等于5重量%,其特征在于存在高于或等于5重量%的固体含量。 该方法规定,所述吹扫按照合适的比例和在某些条件下与合适的助熔剂混合,形成含量高于或等于10重量%的沸点TbP低于或等于350℃的化合物 ;C。 混合后,将悬浮液送入在合适条件下操作的液体/固体分离步骤,分离含有残余有机组分和称为滤饼的固体组分的固相和含有残余固体的液相。 将所获得的固相冷却至低于60℃(包括上限),形成粒状固体,将其储存并保持在低于或等于60℃的温度。