STABILIZED WATER-CONTAINING SODIUM DITHIONITE FORMULATIONS WHICH HAVE BEEN RENDERED ALKALINE

    公开(公告)号:CA1263218A

    公开(公告)日:1989-11-28

    申请号:CA474817

    申请日:1985-02-21

    Applicant: BASF AG

    Abstract: The invention relates to a stabilized watercontaining sodium dithionite formulation having the consistency of a pumpable paste with a viscosity of 0.1 to 1,500 Pa.s, a pH > 10 and containing 60 to 70% by weight of sodium dithionite and 15 to 30% by weight of water, the total content of these two components in the formulation not exceeding 90% by weight, and furthermore containing a sodium and/or potassium salt which is dissolved in the water, is inert to sodium dithionite and has a water solubility greater than 500 g/l at 20.degree.C, the salt being a member selected from the group consisting of sodium formate, sodium acetate, sodium hydroxymethanesulfinate, potassium carbonate and potassium sulfite and mixtures thereof, with the proviso that the concentration of the sodium and/or potassium salt dissolved in the water is not less than 200 g/l. The paste is useful as reducing agent.

    62.
    发明专利
    未知

    公开(公告)号:FI891670A

    公开(公告)日:1989-10-08

    申请号:FI891670

    申请日:1989-04-07

    Applicant: BASF AG

    Inventor: MELZER JAROSLAV

    Abstract: In the present method, single flat products are taken from a stack by means of a vacuum lifting device and are deposited again at a processing station. To ensure that the flat products are taken singly, a sheet of air-impermeable material is inserted between each of these products.

    63.
    发明专利
    未知

    公开(公告)号:FI885971A

    公开(公告)日:1989-07-01

    申请号:FI885971

    申请日:1988-12-23

    Applicant: BASF AG

    Abstract: Defoamers in which the oil phase of the emulsions contains… (a) a C12- to C26-alcohol, distillation residues obtainable during the production of alcohols with a relatively high carbon number by oxo synthesis or by the Ziegler process and which may also be alkoxylated, and/or… (b) a fatty acid ester of C12- to C22- carboxylic acids with a mono- to tri-hydric C1- to C18-alcohol and optionally… (c) a hydrocarbon having a boiling point above 200 DEG C or fatty acids having 12 to 22 carbon atoms,… comprises 5 to 50% by weight of the make-up of the emulsion and has a mean particle size of less than 25 mu m, and in which 5 to 50 % by weight of the components (a) and (b) of the oil phase are replaced by… (d) at least one compound melting at a temperature above 70 DEG C selected from the group of fatty alcohols having at least 28 C atoms, the esters of a C1- to C22-carboxylic acid with an alcohol having at least 28 C atoms, the polyethylene waxes having a molecular weight of at least 2000, the carnauba waxes, the montanic ester waxes and the montanic acid waxes and their salts.

    64.
    发明专利
    未知

    公开(公告)号:DK730888A

    公开(公告)日:1989-07-01

    申请号:DK730888

    申请日:1988-12-30

    Applicant: BASF AG

    Abstract: Defoamers in which the oil phase of the emulsions contains… (a) a C12- to C26-alcohol, distillation residues obtainable during the production of alcohols with a relatively high carbon number by oxo synthesis or by the Ziegler process and which may also be alkoxylated, and/or… (b) a fatty acid ester of C12- to C22- carboxylic acids with a mono- to tri-hydric C1- to C18-alcohol and optionally… (c) a hydrocarbon having a boiling point above 200 DEG C or fatty acids having 12 to 22 carbon atoms,… comprises 5 to 50% by weight of the make-up of the emulsion and has a mean particle size of less than 25 mu m, and in which 5 to 50 % by weight of the components (a) and (b) of the oil phase are replaced by… (d) at least one compound melting at a temperature above 70 DEG C selected from the group of fatty alcohols having at least 28 C atoms, the esters of a C1- to C22-carboxylic acid with an alcohol having at least 28 C atoms, the polyethylene waxes having a molecular weight of at least 2000, the carnauba waxes, the montanic ester waxes and the montanic acid waxes and their salts.

    65.
    发明专利
    未知

    公开(公告)号:FI892301A0

    公开(公告)日:1989-05-12

    申请号:FI892301

    申请日:1989-05-12

    Applicant: BASF AG

    Abstract: The measuring arrangement consists of successive workstations which comprise a stock of paper samples, a balance, a mechanized moistening means for the sample and a blotting means, likewise mechanized, for the moistened sample. An industrial robot controllable by a program and equipped with a gripping apparatus is provided for carrying out the measurement. This arrangement determines the liquid absorbed by paper using the Cobb method and permits the measuring method to be carried out in a fully mechanized manner.

    66.
    发明专利
    未知

    公开(公告)号:FI891670A0

    公开(公告)日:1989-04-07

    申请号:FI891670

    申请日:1989-04-07

    Applicant: BASF AG

    Inventor: MELZER JAROSLAV

    Abstract: In the present method, single flat products are taken from a stack by means of a vacuum lifting device and are deposited again at a processing station. To ensure that the flat products are taken singly, a sheet of air-impermeable material is inserted between each of these products.

    67.
    发明专利
    未知

    公开(公告)号:FI77701B

    公开(公告)日:1988-12-30

    申请号:FI850410

    申请日:1985-01-31

    Applicant: BASF AG

    Abstract: Stabilized water-containing sodium dithionite formulations which have been rendered alkaline have the consistency of a pumpable paste. They additionally contain readily soluble sodium salts and/or potassium salts which are inert to sodium dithionite and whose water-solubility at 20 DEG C. exceeds 500 g/l. These salts are present in the aqueous phase in an amount of not less than 200 g/l. The pastes are useful reducing agents.

    68.
    发明专利
    未知

    公开(公告)号:DK730888D0

    公开(公告)日:1988-12-30

    申请号:DK730888

    申请日:1988-12-30

    Applicant: BASF AG

    Abstract: Defoamers in which the oil phase of the emulsions contains… (a) a C12- to C26-alcohol, distillation residues obtainable during the production of alcohols with a relatively high carbon number by oxo synthesis or by the Ziegler process and which may also be alkoxylated, and/or… (b) a fatty acid ester of C12- to C22- carboxylic acids with a mono- to tri-hydric C1- to C18-alcohol and optionally… (c) a hydrocarbon having a boiling point above 200 DEG C or fatty acids having 12 to 22 carbon atoms,… comprises 5 to 50% by weight of the make-up of the emulsion and has a mean particle size of less than 25 mu m, and in which 5 to 50 % by weight of the components (a) and (b) of the oil phase are replaced by… (d) at least one compound melting at a temperature above 70 DEG C selected from the group of fatty alcohols having at least 28 C atoms, the esters of a C1- to C22-carboxylic acid with an alcohol having at least 28 C atoms, the polyethylene waxes having a molecular weight of at least 2000, the carnauba waxes, the montanic ester waxes and the montanic acid waxes and their salts.

    70.
    发明专利
    未知

    公开(公告)号:FI850410A0

    公开(公告)日:1985-01-31

    申请号:FI850410

    申请日:1985-01-31

    Applicant: BASF AG

    Abstract: Stabilized water-containing sodium dithionite formulations which have been rendered alkaline have the consistency of a pumpable paste. They additionally contain readily soluble sodium salts and/or potassium salts which are inert to sodium dithionite and whose water-solubility at 20 DEG C. exceeds 500 g/l. These salts are present in the aqueous phase in an amount of not less than 200 g/l. The pastes are useful reducing agents.

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