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    Solvent deoiling apparatus and process
    72.
    发明授权
    Solvent deoiling apparatus and process 失效
    溶剂脱油装置及工艺

    公开(公告)号：US4356080A

    公开(公告)日：1982-10-26

    申请号：US48133

    申请日：1979-06-13

    Applicant: Edward A. Pullen ,  Thomas Hallis, Jr.

    Inventor： Edward A. Pullen ,  Thomas Hallis, Jr.

    IPC: C10G73/36 ,  C10G73/06

    CPC classification number: C10G73/36

    Abstract: In solvent deoiling of slack waxes utilizing conventional multi-stage, scraped chillers, solvent is injected into conduits transporting slack wax slurry from one scraped chiller to the next through high velocity jet nozzles.

    Abstract translation: 在利用传统的多级刮刀冷却器对松散蜡的溶剂脱油中，将溶剂注入到将一个刮削冷却器中的惰性蜡浆料输送到下一个通过高速喷射喷嘴的管道中。

    Method and apparatus for wax deoiling
    73.
    发明授权
    Method and apparatus for wax deoiling 失效
    用于WAX处理的方法和装置

    公开(公告)号：US3926776A

    公开(公告)日：1975-12-16

    申请号：US48421774

    申请日：1974-06-28

    Applicant: IRWIN ROY E ,  AUFHAUSER ALFRED

    Inventor： IRWIN ROY E ,  AUFHAUSER ALFRED

    IPC: C10G73/36 ,  C10G43/04

    CPC classification number: C10G73/36

    Abstract: The deoiling of slack wax or similar wax composition is accomplished while the wax is confined in cells provided by a series of plates which are spaced apart by only 1/16 to 1/2 inch and which are vertically or otherwise disposed for drainage along the surfaces thereof from an upper margin to a lower margin. The plates are traversed by a multiplicity of conduits for a temperature-controlling fluid such as water. During the treatment the lower melting point constituents of the confined wax composition become progressively melted responsive to gradual increments of temperature increase and drain transversely along the plates through a distance which is from about 4 to 24 inches and preferably is of the order of 6 to 12 inches so as to become separated from the residual end product wax. The deoiling thus accomplished is much more effective and more rapid as compared with sweating procedures. It compares favorably in these respects to deoiling by solvent extraction. The installation cost of this process is a fraction of the cost of conventional solvent deoiling.

    Continuous process for recovering waxes from oily sludges
    74.
    发明授权
    Continuous process for recovering waxes from oily sludges 失效
    从石油泥浆中回收水的连续工艺

    公开(公告)号：US3711400A

    公开(公告)日：1973-01-16

    申请号：US3711400D

    申请日：1970-11-06

    Applicant: TEXACO INC

    Inventor： COLE E ,  HESS H

    IPC: C02F1/26 ,  C10G33/00 ,  C10G73/36 ,  B01D21/10 ,  B01D11/04

    CPC classification number: C02F1/26 ,  C10G33/00 ,  C10G73/36

    Abstract: IN THE FIRST STAGE OF A CONTINUOUS PROCESS OILY SLUDGES ARE MIXED WITH LIGHT HYDROCARBONS DIFFERING SUBSTANTIALLY IN SPECIFIC GRAVITY THEREFROM TO SEPARATE THE SLUDGES INTO AN OIL-HYDROCARBON PHASE A WATER-WAXY SOLIDS PHASE. THE OIL-HYDROCARBON PHASE IS HEATED TO A TEMPERATURE ABOVE THE CRITICAL TEMPERATURE OF THE LIGHY HYDROCARBONS TO REMOVE THE LIGHT HYDROCARBONS WHICH ARE THEN RECYCLED FOR FURTHER USE. THE WATER-WAXY SOLIDS PHASE IS TREATED TO OBTAIN WATER REDUCED CHEMICAL OXYGEN DEMAND WHICH CAN BE DISCHARGED IN RECEIVING BODIES OF WATER WITHOUT POLLUTING THE SAME. THE WAXY SOLIDS-WATER SLURRY WHICH REMAINS IS, IN THE SECOND STAGE OF THE PROCESS OF THIS INVENTION, DIRED AD THE RESULTING DRY WAXY SOLIDS ARE TREATED WITH A LIGHT ORAMITIC SOLVENT SUCH AS BENZENE, TO YIELD A SOLUTION OF WAX AND THE AROMATIC SOLVENT AND WAX-FREE SOLIDS. AFTER THE AROMATIC SOLVENT WAX SOULTION IS STRIPPED TO REMOVE THE AROMATIC SOLVENT, A VALUABLE WAX PRODUCT REMAINS. IN A FINAL STEP, THE WAX-FREE SOLIDS ARE HAETED TO REMOVE THE LAST TRACES OF THE AROMATIC SOLVENT THEREFROM YIELDING DRY, HYDROCARBON-FREE, SOLIDS WHICH ARE SUITABLE FOR A WIDE VARIETY OF USES, SUCH AS, FOR EXAMPLE, FOR LAND FILL.

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