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JPH02235991A |
PURPOSE: To remove cloudiness from a dewaxed hydrocarbon oil mixture by combining a dewaxed oil mixture and a non-dewaxed oil mixture to simultaneously filter them and introducing free charge being net single polarity into the dewaxed oi...
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JPH02199192A |
PURPOSE: To separate and purify anthracene by cooling anthracene oil to a specified temperature or lower in a vertical crystallization vessel, separating the residual oil by gravity, treating the formed unpurified anthracene crystals wit...
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JPH02147383A |
PURPOSE: To easily obtain a solvent for dye used for a pressure sensitive paper having an extremely high solubility to the dye and high quality by a method wherein a raw material anthracene oil subjected to specified rough distillation i...
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JPH02147380A |
PURPOSE: To easily obtain a solvent for dye used for a pressure sensitive paper having an extremely high solubility to the dye and high quality by a method wherein a raw material anthracene oil subjected to specified rough distillation i...
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JPH0224562B2 |
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JPH0222793B2 |
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JPH0222792B2 |
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JPH0222790B2 |
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JPH0222789B2 |
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JPH0222791B2 |
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JPH02501342A |
A method and apparatus for cleaning and reclassifying electrical apparatus designed for use with PCB fluid electrolytes which is capable of operation on the site of the equipment being cleaned and while said equipment is energized.
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JPH0212276B2 |
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JPH0212277B2 |
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JPH0212275B2 |
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JPH024636B2 |
Process for the continuous removal of acidic components from lower boiling point hydrocarbons in a liquid phase by contacting them in an extractor 10 with a solvent which contains at most 30%w of water, flashing the hydrocarbons absorbed...
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JPH0150356B2 |
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JPH0149198B2 |
There is described in a method of retarding the corrosion occurring in a petroleum treatment or processing operation, for example, extraction in which N-methyl pyrrolidone is one of the components. The method comprises the use of an effe...
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JPH0147520B2 |
An improved solvent extraction process is described for the preparation of lube oil products, the improvement whereby the extract phase is contacted with a coalescing surface prior to its exit from the reactor.
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JPH0144272B2 |
TREATMENT OF PYROLYSIS FUEL OIL A pyrolysis fuel oil (black oil) is contacted with a promoter liquid having a 5 volume percent distillation temperature of at least 250.degree.F and a 95 volume percent distillation temperature of at least...
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JPH0144237B2 |
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JPH0141676B2 |
Lubricating oils suitable for use in refrigeration equipment in admixture with fluorinated hydrocarbon refrigerants are produced by solvent extraction of naphthenic lubricating oil base stocks, cooling the resulting extract mixture, opti...
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JPH01203496A |
PURPOSE: To provide a continuous extraction method that enables the production of an extract in a high yield, and also, simple discharge of the extraction residue by subjecting a mixture of organic substances each of which has a high boi...
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JPH0133518B2 |
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JPH0131799B2 |
In a method for separating a hydrocarbon mixture into relatively difficultly soluble hydrocarbons and relatively easily soluble hydrocarbons by extractive distillation using a polar solvent comprising feeding the starting hydrocarbon mix...
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JPH01127002A |
PURPOSE: To efficiently extract and separate objective high-concn. matter to be extracted by using two or more kinds of mixed supercritical fluids (solvent) different in critical pressure and performing extraction of substance to be extr...
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JPH0124199B2 |
Process for deasphalting an asphaltene-containing hydrocarbon charge wherein said charge, admixed with a first fraction of light paraffinic hydrocarbon solvent, is passed through an elongate zone inclined by 2 DEG to 15 DEG to a horizont...
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JPH0117518B2 |
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JPH0113753B2 |
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JPH0113516B2 |
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JPS63301293A |
In a solvent extraction/steam distillation process for the recovery of aromatic hydrocarbons, the improvement comprising (a) introducing high pressure steam into a steam ejector; (b) passing the steam from step (a) to a first heat exchan...
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JPS63503075A |
Asphaltenes are separated from hydrocarbon oil by bringing the oil into contact with formic acid or a water-soluble organic acid consisting of carbon, hydrogen, and oxygen and having at least two functional groups.
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JPS6339038B2 |
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JPS6332337B2 |
A process for separating a butene-1/isobutene mixture from a C4 hydrocarbon fraction is provided which comprises subjecting the C4 hydrocarbon fraction to extractive distillation using a polar solvent to separate components predominantly...
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JPS6329917B2 |
A lubricating oil solvent refining process employing N-methyl-2-pyrrolidone as solvent in which solvent is recovered from a solvent-oil mixture in a staged series of vaporization zones at progressively increasing pressure with external h...
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JPS6316965B2 |
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JPS6312917B2 |
Acidic gases, such as H2S, COS, CO2, and HCN are removed from a mixture of light hydrocarbons by first separating the mixture into a gas portion and a liquid portion. The gas portion is compressed, water washed and scrubbed with an absor...
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JPS6346294A |
A process for improving the deasphalting of a heavy hydrocarbon feedstock with a solvent by subjecting the feedstock to shearing alternatively after and/or before the addition of at least a portion of the solvent to the feedstock is disc...
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JPS6330590A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS62250092A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS62250091A |
A process for upgrading diesel oil comprising the stepsof:(1) reacting the diesel oil with a nitrogenous treating agent;(2) contacting the diesel oil from step (1) above with(a) a primary solvent selected from the group consisting of org...
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JPS6251318B2 |
An improvement to a continuous solvent extraction-steam-distillation process for the recovery of aromatic hydrocarbons in the range of C6-C16from a feed stream containing such aromatics and aliphatic hydrocarbons in the range of C5-C16 w...
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JPS62238224A |
Coal tar oil is separated quantitatively into neutral oil, phenols and bases by a two stage extraction with overcritical gases. Carbon dioxide is employed as an overcritical extraction agent, and propane or butane are preferably added as...
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JPS62227403A |
Extraction process comprising the following steps: (i) contacting a feed (e.g. a heavy hydrocarbon oil) with an extractant (e.g. propane and/or butane) in an extraction zone, (ii) removing a product (e.g. asphalt) from a lower part of th...
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JPS62178527A |
A process is disclosed for the separation of aromates from hydrocarbon mixtures of optional aromate content through extractive distillation using N-substituted morpholine displaying substituents having no more than 7 C-atoms as selective...
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JPS62119294A |
A solvent extract obtained from a conventional hydrocarbon solvent extraction process, for example one employing furfural as the extraction solvent, is cooled and separated by decantation to provide a pseudo-raffinate containing most of ...
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JPS62106987A |
Liquid and gaseous hydrocarbon streams are treated to remove COS by contacting the hydrocarbon streams with an aqueous solution of selective H2S-absorbent and a COS absorbent/hydrolyzer whereby COS is hydrolyzed to H2S and CO2 and said p...
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JPS6279293A |
PURPOSE: To readily and efficiently extract and separate a liquid hydrocarbon based mixture without mechanical stirring, by bringing an O/W type emulsion of the liquid hydrocarbon based mixture into contact with an organic solvent in a s...
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JPS6214600B2 |
For refining spent motor oils in order to recover lubricating bases to be reused, the stock to be refined is first stripped of water and light hydrocarbons, then a first extraction with a solvent (preferably a lower paraffin), heating th...
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JPS6232182A |
PURPOSE: To prepare clear oil effectively, by mixing ash-contg. raw material oil with hydrocarbon and keeping the mixt. at high temp. and under high pressure for removal of ash by sedimentation and separation. CONSTITUTION: An ash-contg....
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JPS625957B2 |
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