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    PROCESS FOR THE PREPARATION OF DI AND TRIMETHYLBENZENE OXIDATION IN LIQUID PHASE
    1.
    发明授权
    PROCESS FOR THE PREPARATION OF DI AND TRIMETHYLBENZENE OXIDATION IN LIQUID PHASE 失效

    公开(公告)号：KR790001753B1

    公开(公告)日：1979-12-17

    申请号：KR740002494

    申请日：1974-05-20

    Applicant: STANDARD OIL CO

    Inventor： CROFT G E ,  WAMPFLER G

    IPC: C07C51/00

    Abstract: A method for oxidixing di-or trimethy lvbenxenes with molecular oxyqen to benzene di-or tricarboxylic acid under liquid qhase conditions at 130≦̸C-257≦̸C. The catalyst sys- tem consisted of a source of bromine with manganese or cobalt and manganess and zirconium. catalyst contains for each gram mole of such methylbenxene 2-5 milligram atoms of the transition metal such as manganese or cobalt manganese, or 2-10 mmg atoms of bromine and based on each mmg atom of such transition metal from 0.1-3.0 mmg atom of zirconium.

    Recovery of bromine from tere-and isophthalic acid process residues
    2.
    发明授权
    Recovery of bromine from tere-and isophthalic acid process residues 失效
    从酪蛋白和异丙酸工艺残留物中回收溴

    公开(公告)号：US3840641A

    公开(公告)日：1974-10-08

    申请号：US29941172

    申请日：1972-10-20

    Applicant: STANDARD OIL CO

    Inventor： WAMPFLER G ,  POHLMANN H

    IPC: B01J27/32 ,  C01B7/09 ,  C01D7/10 ,  C01D7/12 ,  C07C51/42 ,  C01D3/00 ,  C01D7/26 ,  C01G45/00 ,  C01G51/06

    CPC classification number: C07C51/42 ,  B01J27/32 ,  C01B7/096 ,  C01D7/10 ,  C01D7/12 ,  Y02P20/584 ,  C07C63/26 ,  C07C63/24

    Abstract: 1. A METHOD OF RECOVERING BROMINE AS SODIUM BROMIDE AND ALSO PRODUCING SODIUM BICARBONATE FROM AT LEAST THE AQUEOUS PHASE OBTAINED FROM RECOVERY OF CATALYST METAL CARBONATE PRODUCT FROM TERE- OR ISOPHTHALIC ACID PROCESS RESIDUE CONTAINING WATER SOLUBLE SALTS OF BROMINE AND AT LEAST COBALT AS CATALYST METAL, CORROSION METALS INCLUDING IRON AND ACIDIC AND NEUTRAL AROMATIC COMPOUNDS BY TREATMENT OF SUCH RESIDUE WITH WATER IN AN AMOUNT OF 1.0-10.0 WEIGHT PARTS PER WEIGHT PART OF WATER AND WITH SODIUM BICARBONATE OR CARBONATE TO FORM A CATALYST METAL CARBONATE PRECIPITATE AND SEPARATING SUCH PRECIPITATE FROM THE RESULTING AQUEOUS PHASE, WHICH METHOD COMPRISES THERMALLY CONVERTING AT A TEMPERATURE IN THE RANGE OF 900-1000*C. THE SOLUTE CONTENT OF SAID AQUEOUS PHASE TO A SOLID MIXTURE CONTAINING SODIUM BROMIDE AND SODIUM CARBONATE AND WATER INSOLUBLE SOLIDS, LEACHING SAID SOLID MIXTURE WITN WATER IN AN AMOUNT TO FORM A SOLUTION OF ALL SODIUM BROMIDE AND SUBSTANTIALLY SATURATED SAID SOLUTION WITH RESPECT TO SODIUM CARBONATE, SEPARATING THE EXTRACT SOLUTION FROM INSOLUBLE SOLIDS, CONVERTING THE SODIUM CARBONATE IN SID EXTRACT SOLUTION TO PRECIPITATED SODIUM BICARBONATE BY REACTON WITH CARBON DIOXIDE IN THE PRESENCE OF SODIUM BROMIDE IN AN AMOUNT OF AT LEAST 10 WEIGHT PERCENT OF THE SOLUTION AT A TEMPERATURE IN THE RANGE OF AT LEAST 20*C. BUT NOT EXCEEDING THE TEMPERATURE OF REVERSING SAID CONVERSION OF CARBONATE TO BICARBONATE, SEPARATING SODIUM BICARBONATE PRECIPITATE FROM THE AQUEOUS SOLUTION OF SODIUM BROMIDE, WASHING THE RECOVERED PRECIPITATE WITH WATER, ADDING THE AQUEOUS WASH LIQUOR TO THE STEP OF DISSOLVING THE MIXTURE OF SODIUM BROMIDE AND SODIUM CARBONATE, CONCENTRATING SAID SEPARATED AQUEOUS SOLUTION OF SODIUM BROMIDE TO A SODIUM BROMIDE CONTENT OF 30 TO 45 WEIGHT PERCENT BY THE REMOVAL OF WATER FROM SAID COMPOSITE.

    4.
    发明专利
    未知

    公开(公告)号：BR7404000D0

    公开(公告)日：1974-12-03

    申请号：BR400074

    申请日：1974-05-17

    Applicant: STANDARD OIL CO

    Inventor： WAMPFLER G ,  CROFT G

    IPC: C07C63/14 ,  B01J27/00 ,  B01J31/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/265 ,  C07C63/15 ,  C07C63/307 ,  C07C67/00 ,  C07C63/02 ,  C07C63/32

    Abstract: 1467886 Oxidation of di- or tri-methylbenzenes STANDARD OIL CO 15 May 1974 [21 May 1973] 21569/74 Heading C2C A method of oxidizing di- or tri-methylbenzene with molecular oxygen to benzene di- or tri-carboxylic acid or infra-molecular anhydride thereof under liquid phase conditions at temperatures in the range of 130‹ to 275‹ C. comprises conducting said oxidation in the presence of the catalyst system comprising either a source of bromine with manganese and zirconium or a source of bromine with cobalt, manganese and zirconium and wherein said catalyst system provides a total of from 1 to 5 milligram atoms of manganese and cobalt and from 1 to 10 milligram atoms of bromine for each mole of said di- or tri-methylbenzene and from 0À1 to 3À0 milligram atom of zirconium for each milligram atom of manganese and cobalt.

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