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    62.
    发明专利
    未知

    公开(公告)号：PT87410A

    公开(公告)日：1989-05-31

    申请号：PT8741088

    申请日：1988-05-05

    Applicant: DEGUSSA

    Inventor： DIEHL MANFRED ,  LEONHARDT WOLFGANG

    IPC: B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  C11D3/08 ,  C11D3/12 ,  C11D3/37 ,  C11D7/00 ,  C11D17/00

    Abstract: The adsorbent has a high absorption capacity for liquid to pasty ingredients of detergents and cleaners and has the following components: (a) 60 to 80 per cent by weight of a synthetic sodium silicate which is capable of cation exchange and contains bound water, (b) 0.1 to 8 per cent by weight of sodium silicate of the composition Na2O : SiO2 = 1 : 2 to 1 : 3.5, (c) 3 to 15 per cent by weight of a mixture of two different polyacrylic acids which have a different viscosity number, (d) 8 to 18 per cent by weight of water which can be removed at a drying temperature of 145 DEG C, (e) 0 to 5 per cent by weight of a nonionic surfactant containing polyol ether groups, where the adsorbent has an average particle size of 0.2 to 1.2 mm and the particles with a size of less than 0.05 mm do not comprise more than 2 per cent by weight and the particles with a size of more than 2 mm do not comprise more than 5 per cent by weight, and the bulk density is 400 to 700 g/l.

    64.
    发明专利
    未知

    公开(公告)号：DK239588A

    公开(公告)日：1988-11-07

    申请号：DK239588

    申请日：1988-05-03

    Applicant: DEGUSSA

    Inventor： DIEHL MANFRED ,  LEONHARDT WOLFGANG

    IPC: B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  C11D3/08 ,  C11D3/12 ,  C11D3/37 ,  C11D7/00

    Abstract: The adsorbent has a high absorption capacity for liquid to pasty ingredients of detergents and cleaners and has the following components: (a) 60 to 80 per cent by weight of a synthetic sodium silicate which is capable of cation exchange and contains bound water, (b) 0.1 to 8 per cent by weight of sodium silicate of the composition Na2O : SiO2 = 1 : 2 to 1 : 3.5, (c) 3 to 15 per cent by weight of a mixture of two different polyacrylic acids which have a different viscosity number, (d) 8 to 18 per cent by weight of water which can be removed at a drying temperature of 145 DEG C, (e) 0 to 5 per cent by weight of a nonionic surfactant containing polyol ether groups, where the adsorbent has an average particle size of 0.2 to 1.2 mm and the particles with a size of less than 0.05 mm do not comprise more than 2 per cent by weight and the particles with a size of more than 2 mm do not comprise more than 5 per cent by weight, and the bulk density is 400 to 700 g/l.

    66.
    发明专利
    未知

    公开(公告)号：BR0317554A

    公开(公告)日：2005-11-22

    申请号：BR0317554

    申请日：2003-12-02

    Applicant: DEGUSSA

    Inventor： JAKOB HARALD ,  ZIMMERMANN KLAUS ,  OVERDICK RALPH ,  LEONHARDT WOLFGANG

    IPC: C01B15/10 ,  C11D3/39 ,  C11D17/00

    Abstract: The invention relates to coated peroxygen compounds, in particular coated sodium percarbonate particles, with a delayed release of the active oxygen (=increased dissolving time). Particles according to the invention comprise an innermost shell layer, comprising at least one hydrate-forming inorganic salt, and an outer shell layer, comprising 0.2 to 3 wt. % alkali metal silicate with a modulus of greater than 2.5, in particular 3 to 5, the outer layer having been prepared using an alkali metal silicate solution with an alkali metal silicate concentration in the range from 2 to 20 wt. %. By lowering the alkali metal silicate concentration in the solution to be used, the dissolving time can be increased for the same shell amount. The dissolving time can be increased greatly by the layer sequence and the concentration of the solution, at a low amount of alkali metal silicate.

    METHOD FOR SECURELY PLACING SODIUM PERCARBONATE IN BULK CONTAINERS
    67.
    发明专利
    METHOD FOR SECURELY PLACING SODIUM PERCARBONATE IN BULK CONTAINERS 未知

    公开(公告)号：PL361840A1

    公开(公告)日：2004-10-04

    申请号：PL36184001

    申请日：2001-11-27

    Applicant: DEGUSSA

    Inventor： SCHEIBE MICHAEL ,  TRAEUMER DIETMAR ,  KOEHLEN RAINER ,  LEONHARDT WOLFGANG ,  KAISER LOTHAR

    IPC: C01B15/10 ,  C01D7/00

    Abstract: A process is provided for the safe storage of sodium percarbonate in a bulk container that is substantially closed to the ambient atmosphere. A temperature is measured at at least one position inside the sodium percarbonate stored in bulk and, with an increase in temperature within the range of 0.5 to 10° C. per day, in particular 1 to 5° C. per day, dry air is passed periodically or continuously through the bulk material until the increase in temperature has fallen to a value of less than 1° C. per day in particular less than 0.5° C. per day.

    COATED PEROXYGEN COMPOUNDS WITH CONTROLLED RELEASE, A PROCESS FOR THEIR PREPARATION AND THEIR USE
    68.
    发明专利
    COATED PEROXYGEN COMPOUNDS WITH CONTROLLED RELEASE, A PROCESS FOR THEIR PREPARATION AND THEIR USE 未知

    公开(公告)号：AU2003289928A1

    公开(公告)日：2004-07-14

    申请号：AU2003289928

    申请日：2003-12-02

    Applicant: DEGUSSA

    Inventor： JAKOB HARALD ,  ZIMMERMANN KLAUS ,  OVERDICK RALPH ,  LEONHARDT WOLFGANG

    IPC: C01B15/10 ,  C11D3/39 ,  C11D17/00

    Abstract: The invention relates to coated peroxygen compounds, in particular coated sodium percarbonate particles, with a delayed release of the active oxygen (=increased dissolving time). Particles according to the invention comprise an innermost shell layer, comprising at least one hydrate-forming inorganic salt, and an outer shell layer, comprising 0.2 to 3 wt. % alkali metal silicate with a modulus of greater than 2.5, in particular 3 to 5, the outer layer having been prepared using an alkali metal silicate solution with an alkali metal silicate concentration in the range from 2 to 20 wt. %. By lowering the alkali metal silicate concentration in the solution to be used, the dissolving time can be increased for the same shell amount. The dissolving time can be increased greatly by the layer sequence and the concentration of the solution, at a low amount of alkali metal silicate.

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