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    PURIFICATION AND PRODUCTION OF 2,3,5-TRIMETHYL- PARABENZOQUINONE BY CATALYTIC OXIDATION
    1.
    发明专利
    PURIFICATION AND PRODUCTION OF 2,3,5-TRIMETHYL- PARABENZOQUINONE BY CATALYTIC OXIDATION 失效

    公开(公告)号：JP2000143576A

    公开(公告)日：2000-05-23

    申请号：JP28592699

    申请日：1999-10-06

    Applicant: BASF AG

    Inventor： RUFF DETLEF DR ,  BAUMANN DIETER ,  AQUILA WERNER DR ,  SCHUBERT JUERGEN ,  LECHTKEN PETER

    IPC: B01J31/22 ,  C07B61/00 ,  C07C46/08 ,  C07C46/10 ,  C07C50/02 ,  C07C50/04

    Abstract: PROBLEM TO BE SOLVED: To provide a method for purifying or isolating 2,3,5-trimethyl-p- benzoquinone by surely removing intermediates and by-products formed during production of the compound and avoiding degradation of the component by diminishing the thermal stress caused by the treatment by separating the compound by the crystallization. SOLUTION: A method is provided for purifying 2,3,5-trimethyl-p-benzoquinone (TMQ) or isolating TMQ from a TMQ-containing mixture by separating by crystallizing preferably at -6 to 32 deg.C. A TMQ-containing mixture to be purified or TMQ contains TMQ preferably at 1-99.999 wt.%, more preferably at 90-99.999 wt.%. The TMQ-containing mixture is formed preferably by the catalytic oxidation of trimethylphenol. TMQ is a useful intermediate for the production of trimethylhydroquinone which is a precursor for the synthesis of α-tocopherol.

    PRODUCTION OF CRYSTALLINE SOLID FROM GLYCINE-N,N-DIACETIC DERIVATIVE HAVING SUFFICIENTLY LOW HYGROSCOPIC PROPERTY
    2.
    发明专利
    PRODUCTION OF CRYSTALLINE SOLID FROM GLYCINE-N,N-DIACETIC DERIVATIVE HAVING SUFFICIENTLY LOW HYGROSCOPIC PROPERTY 失效

    公开(公告)号：JPH10175929A

    公开(公告)日：1998-06-30

    申请号：JP32491397

    申请日：1997-11-26

    Applicant: BASF AG

    Inventor： SCHOENHERR MICHAEL DR ,  RAULS MATTHIAS DR ,  ASCHERL HERMANN ,  LETZELTER THOMAS ,  BAUMANN DIETER ,  POTTHOFF-KARL BIRGIT DR

    IPC: C11D1/04 ,  C07C227/42 ,  C07C229/16 ,  C07C229/24

    Abstract: PROBLEM TO BE SOLVED: To obtain a crystalline solid of the subject compound substantially not containing an additive and having virtually sufficiently low hygroscopic property. SOLUTION: This crystalline solid constituted of a glycine-N,N-diacetic acid derivative represented by formula I [R is a 1-30C alkyl or a 2-30C alkenyl, a group of formula II (A is a 1-12C alkylene bridge, etc.; M is H or an alkali metal, etc.), etc.] is produced by distilling away water content of an aqueous solution of (A) glycine-N,N-diacetic acid derivative I [R is a 1-20C alkyl or a group of formula II, etc.] as a starting substance. Crystallization is carried out by adding a crystalline component A in an amount of 0.001-50wt.%, preferably 0.01-10wt.% based on an amount of the component A in a starting substance as a nucleus for crystallization and the crystallization temperature is controlled to 10-100 deg.C, especially 40-80 deg.C. The resultant crystalline solid has a purity of 70-99.9%, especially 80-99.5% based on total amount of solid.

    PRODUCTION OF PARTICULATE NEOPENTYL GLYCOL HYDROXYPIVALATE, PARTICLE PRODUCED THEREBY AND GRANULATION OF THE PARTICLE WITH GRANULATOR
    3.
    发明专利
    PRODUCTION OF PARTICULATE NEOPENTYL GLYCOL HYDROXYPIVALATE, PARTICLE PRODUCED THEREBY AND GRANULATION OF THE PARTICLE WITH GRANULATOR 失效

    公开(公告)号：JPH10114709A

    公开(公告)日：1998-05-06

    申请号：JP24895597

    申请日：1997-09-12

    Applicant: BASF AG

    Inventor： WEYER HANS-JUERGEN DR ,  ECK BERND ,  BAUMANN DIETER ,  MALTRY BERNHARD

    IPC: B01J2/00 ,  B01J2/02 ,  B01J2/26 ,  C07C67/52 ,  C07C69/675

    Abstract: PROBLEM TO BE SOLVED: To provide a process for producing particles of neopentyl hydroxypivalate(NHP) free from the defects of conventional process while suppressing the generation of cake, provide a particulate NHP having low cake-generation rate and provide a process for granulating the particle with a granulator. SOLUTION: This process for the production of particulate NHP comprises the supply of a molten NHP containing >=3wt.% of NHP crystal based on the total weight of NHP to a cooling zone to solidify the molten NHP. A particulate NHP having low caking tendency can be produced by this process. The particles can be granulated by a method using a granulator for molten material provided with a precooling device 2, a precrystallizer 3, a liquid droplet forming machine 4 or a planar applicator, a cooling belt 6 and a crusher in the case of using a planar applicator.

    METHOD FOR ISOLATING N2O
    5.
    发明申请
    METHOD FOR ISOLATING N2O 审中-公开
    隔离N2O的方法

    公开(公告)号：WO2007060160A2

    公开(公告)日：2007-05-31

    申请号：PCT/EP2006068714

    申请日：2006-11-21

    Applicant: BASF AG ,  TELES JOAQUIM HENRIQUE ,  ROESSLER BEATRICE ,  BAUMANN DIETER

    Inventor： TELES JOAQUIM HENRIQUE ,  ROESSLER BEATRICE ,  BAUMANN DIETER

    IPC: C01B21/22 ,  B01D53/14 ,  C07C45/27

    CPC classification number: C07C45/28 ,  B01D53/14 ,  B01D53/1493 ,  B01D2257/402 ,  C01B21/22 ,  C01P2006/80 ,  Y02C20/10 ,  Y02P20/153

    Abstract: The invention relates to a method for purifying a gas mixture G-0 containing dinitrogen monoxide, at least comprising: the absorption of the gas mixture G-0 in an organic solvent, followed by; the desorption of a gas mixture G-1 from the loaded organic solvent; the absorption of the gas mixture G-1 in water and subsequently; the desorption of a gas mixture G-2 from the loaded water, and to the use of a purified gas mixture containing dinitrogen monoxide that can be obtained according to a method of the aforementioned type as oxidizing agents for olefins.

    Abstract translation: 本发明涉及一种用于净化的气体混合物G-0包括一氧化二氮，至少包含所述气体混合物G-0的吸收在有机溶剂中，随后从载货有机溶剂的气体混合物G-1的解吸，在气体混合物中G-1的吸收 水中，并通过作为烯烃氧化剂这样的方法的气体混合物G-2从装载水，并于使用经净化的气体混合物，其包含一氧化二氮，而获得的随后解吸。

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