METHOD OF PURIFYING EXHAUSTED OILS Russian patent published in 2004 - IPC

Abstract RU 2242504 C1

FIELD: metalworking and mechanical engineering.

SUBSTANCE: method of purifying exhausted mineral oils involves filtration through adsorbent (silica gel or silica gel-sand mix) additionally containing 96-99% sulfuric acid at adsorbent-to-acid weight ratio 1:(0.25-0.5). Filtration is carried out at 100-200^оС at a speed enabling residence time of oil in contact zone with adsorbent at least 1 h.

EFFECT: increased degree of purification and lowered oil viscosity.

1 tbl, 10 ex

Similar patents RU2242504C1

Title	Year	Author	Number
METHOD FOR TREATMENT OF DEPLETED MINERAL OILS	2005	Pisareva Svetlana Ivanovna Kamenchuk Jana Aleksandrovna Sirotkina Ekaterina Egorovna	RU2315085C2
METHOD OF PROCESSING OF WORKED LIQUID OIL PRODUCTS FOR MANUFACTURE OF MIXTURES EXPLOSIVE EXPLOSIVES CONTAINING OXIDIZER IN THE FORM OF SALTS - NITRATES	2016	Starshinov Aleksandr Vasilevich Opanasenko Petr Ivanovich Kostylev Sergej Svyatoslavovich Kupriyanov Ilya Yurevich Chernogo Irina Gennadevna	RU2630486C1
METHOD OF PURIFICATION OF WASTE MINERAL OILS AND METHOD OF PRODUCTION OF ADSORBENT FOR WASTE OIL PURIFICATION	2006	Sirotkina Ekaterina Egorovna Pisareva Svetlana Ivanovna	RU2337940C2
METHOD OF REFINING OF SPENT OILS	1999	Dmitrieva Z.T. Averina N.V.	RU2153526C1
METHOD OF REFINING SPENT LUBE OILS	2001	Dmitrieva Z.T. Bondaletov V.G. Antonov I.G. Prikhod'Ko S.I. Smolentseva E.V.	RU2188850C1
METHOD OF REFINING SPENT LUBE OILS	2001	Dmitrieva Z.T. Judina N.V. Bylina I.V. Zvereva A.V. Smolentseva E.V. Bondaletov V.G.	RU2188851C1
METHOD OF REGENERATING EXHAUSTED MINERAL OILS AND THEIR MIXTURES	2002	Mikheeva Eh.A.	RU2206606C1
METHOD OF REFINING SPENT LUBRICATING OILS	1999	Dmitrieva Z.T. Averina N.V.	RU2153527C1
EXHAUSTED LUBE OIL REFINING METHOD	2001	Dmitrieva Z.T. Judina N.V. Bylina I.V. Zvereva A.V. Bondaletov V.G. Antonov I.G. Prikhod'Ko S.I.	RU2213129C2
METHOD FOR REGENERATING USED TURBINE OIL	2022	Rukhov Artem Viktorovich Bakunin Evgenii Sergeevich Chernikova Olga Viacheslavovna Obraztsova Elena Iurevna Polushkin Dmitrii Leonidovich Al-Ameri Sadzha Nafea Mokhsin Istomin Andrei Mikhailovich Goncharova Mariia Sergeevna	RU2804769C1

RU 2 242 504 C1

Authors

Pisareva S.I.

Kamenchuk Ja.A.

Andreeva L.N.

Unger F.G.

Dates

2004-12-20—Published

2003-07-31—Filed