中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5374 records (took 0.025 seconds)

    Internal dianhydride of 2 2' 3 3'-tetracarboxy benzophenone
    71.
    发明授权
    Internal dianhydride of 2 2' 3 3'-tetracarboxy benzophenone 失效
    2 2'3 3'-TETRACARBOXY BENZOPHENONE的内部二氢

    公开(公告)号：US3652598A

    公开(公告)日：1972-03-28

    申请号：US3652598D

    申请日：1963-10-08

    Applicant: STANDARD OIL CO

    Inventor： BROADHEAD RONALD L

    IPC: C07C65/34 ,  C07D1/00

    CPC classification number: C07C65/34

    Abstract: THE NOVEL ANHYDRIDES OF MY INVENTION CAN BE REPRESENTED IN GENERAL BY THE FOLLOWING STRUCTURAL FORMULA:

    R-CO-R

    WHEREIN R IS A PHENYL RADICAL CONTAINING A CARBOXYLIC ANHYDRIDE GROUP, I.E. A GROUP HAVING THE STRUCTURAL FORMULA:

    -CO-OOC-

    WHICH IS ATTACHED TO ADJACENT POSITIONS ON SAID PHENYL RADICAL. THE REMAINING PROSITIONS ON SAID PHENYL RADICAL MAY BE SUBSITUTED WITH VARIUS ARYL RADICALS; SPECIFIC EXAMPLES OF SUCH SUBSTITUTED DIANBYDRIDES ARE THE PHENYL-SUBSTITUTED TETRACARBOXYLIC DIANHYDRIDES, CARBOXYPHENYL-SUBSTITUTED TETRACARBOXYLIC DIANHYDRIDES, CARBONYNAPHTHYLSUBSTITUTED TETRACARBOXYLIC DIANHYDRIES, CARBOXYBENZOYLSUBSTITUTED TETRACARBOXYLIC DIANHYDRIDES, AND THE LIKE, WHEREIN THE DIANHYDRIDE GROUPS ARE IN THE 2,3,2'',3'', AND 3,4,3'',4'' POSITIONS.

    Hydrocracking process and catalyst
    72.
    发明授权
    Hydrocracking process and catalyst 失效
    水解过程和催化剂

    公开(公告)号：US3649523A

    公开(公告)日：1972-03-14

    申请号：US3649523D

    申请日：1969-04-10

    Applicant: STANDARD OIL CO

    Inventor： BERTOLACINI RALPH J ,  GUTBERLET LOUIS C

    IPC: B01J29/16 ,  C10G47/20 ,  C10G13/02 ,  C01B33/28

    CPC classification number: C10G47/20 ,  B01J29/166

    Abstract: THE CATALYST COMPRISES GROUP VI-A AND GROUP VIII METAL AND/OR THEIR COMPOUNDS AND AN ACIDIC SUPPORT COMPRISING LARGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL AND A POROUS SUPPORT MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALUMINA, ALUMINUM PHOSPHATE, AND SILICA. PREFERRED GROP VI-A METALS ARE MOLYBDENUM AND TUNGSTEN. PREFERRED GROUP III METALS ARE COBALT AND NICKEL. THE PREFERRED LAREGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL IS ULTRASTABLE, LARGE-PORE CRYSTALLINE ALUMINOSILICATE MATERIAL. THE PROCESS ARE HYDROCARBON CONVERSION PROCESSES, A TYPICIAL EXAMPLE OF WHCH IS A HYDROCRACKING PROCESS. THE HYDROCRACKING PROCESS COMPRISES CONTACTING IN A HYDROCRACKING REACTION ZONE UNDER HYDROCRACKING CONDITIONS AND IN THE PRESENCE OF HYDROGEN PETROLEUM HYDROCARBON FRACTIONS WITH THE CATALYST OF THE PRESENT INVENTION.

    Integration of para-xylene oxidation to terephthalic acid and its esterification to dimethyl terephthalate
    75.
    发明授权
    Integration of para-xylene oxidation to terephthalic acid and its esterification to dimethyl terephthalate 失效
    聚对苯二甲酸氧化对二十一碳烯酸的整合及其对二甲基孕酮的鉴定

    公开(公告)号：US3629321A

    公开(公告)日：1971-12-21

    申请号：US3629321D

    申请日：1969-05-26

    Applicant: STANDARD OIL CO

    Inventor： LONGLAND GEORGE M JR

    IPC: C07C51/265 ,  C07C67/08 ,  C07C69/82

    CPC classification number: C07C51/265 ,  C07C67/08 ,  C07C63/26 ,  C07C69/82

    Abstract: LIQUID PHASE OXIDATION OF P-XYLENE WITH MOLECULAR OXYGEN-CONTAINING GAS (E.G., AIR OR COMMERCIAL OXYGEN) IN PRESENC OF ACETIC ACID PRODUCES FLUID OXIDATION EFFLUENT WHICH IS SUBJECTED FIRST TO SIMULTANEOUS TEREPHTHALIC ACID CRYSTALLIZATION AND ACETIC ACID DISPLACEMENT BY CONTACT WITH A COUNTERCURRENT FLOW OF WATER AND SECOND TO SIMULTANEOUS WATER DISPLACEMENT BY AND TEREPHTHALIC SLURRY FORMATION IN METHANOL BY ITS COUNTERCURRENT CONTACT WITH THE FIRST FORMED SLURRY OF TEREPHTHALIC ACID IN WATER FROM ACETIC ACID DISPLACEMENT. THIS PROVIDES A SLURRY OF TEREPHTHALIC ACID IN METHANOL AS FEED TO ESTERIFICATION FROM WHICH A LIQUID ESTERIFICATION EFFLUENT IS SUBJECTED TO SIMULTANEOUS DMT CRYSTALLIZATION AND METHANOL MOTHER LIQUOR DISPLACEMENT BY COUNTERCURRENT CONTACT WITH COOLER FRESH METHANOL THEREBY PRODUCING A SLURRY OF PRECIPITATED DMT IN FRESH METHANOL.

    Apparatus for removing oil and debris from water
    80.
    发明授权
    Apparatus for removing oil and debris from water 失效
    从水中去除油和脱落物的装置

    公开(公告)号：US3608727A

    公开(公告)日：1971-09-28

    申请号：US3608727D

    申请日：1970-03-18

    Applicant: STANDARD OIL CO

    Inventor： GRUTSCH JAMES F ,  MALLATT RUSSELL C

    IPC: E02B15/04 ,  E02B15/10

    CPC classification number: E02B15/104 ,  Y02A20/204 ,  Y10S210/924

    Abstract: Oil, solid particles such as biological slime and floating debris etc. are removed from water by an apparatus including endless chain means made up of a series of interconnected foraminous chambers holding a regenerable porous filter material such as polyurethane. Preferably the filter material has an outer large pore section and an inner small pore section. A plurality of buckets are attached to the chain means, and as the chain means moves through a closed loop path, these buckets catch debris and dump it into a holding bin. Simultaneously, the filter material absorbs surface and subsurface oil and the like from water traveling through the filter material. The filter material is regenerated by squeezing the filter material to release the oil.

Patent Agency Ranking