ALKALINE EARTH METAL SODIUM ACETATE, A PROCESS FOR ITS PREPARATION AND ITS USE

    公开(公告)号:CA2110422A1

    公开(公告)日:1994-06-18

    申请号:CA2110422

    申请日:1993-12-01

    Applicant: HOECHST AG

    Abstract: Alkaline earth metal sodium acetate, a process for its preparation and its use The alkaline earth metal sodium acetate according to the invention comprises 18 to 22 % by weight of calcium (Ca++), 0 to 1 % by weight of magnesium (Mg++), 4 to 7 % by weight of sodium (Na+), 66 to 75 % by weight of acetate (CH3COO-), 0 to 7 % by weight of water and 0 to 2 % by weight of water-insoluble components For its preparation, a calcium oxide containing at least 85% of CaO, acetic acid and sodium hydroxide solution are reacted with one another and the reaction product is granulated to give particles of 0.5 to 5 mm. The alkaline earth metal sodium acetate according to the invention can be used as an environment-friendly deicing agent causing little corrosion.

    ALKALINE EARTH METAL POTASSIUM ACETATE, A PROCESS FOR ITS PREPARATION AND ITS USE

    公开(公告)号:CA2110317A1

    公开(公告)日:1994-06-18

    申请号:CA2110317

    申请日:1993-11-30

    Applicant: HOECHST AG

    Abstract: Alkaline earth metal potassium acetate, a process for its preparation and its use The alkaline earth metal potassium acetate according to the invention comprises 14 to 19 % by weight of calcium (Ca++), 0 to 1 % by weight of magnesium (Mg++), 11 to 16 % by weight of potassium (K+), 62 to 71 % by weight of acetate (CH3COO-), 0 to 7 % by weight of water and 0 to 2 % by weight of water-insoluble components For its preparation, a calcium oxide containing at least 85% of CaO, acetic acid and potassium hydroxide solution are reacted with one another and the reaction product is granulated to give particles of 0.5 to 5 mm. The alkaline earth metal potassium acetate according to the invention can be used as an environment-friendly deicing agent causing little corrosion.

    4.
    发明专利
    未知

    公开(公告)号:FI935636A

    公开(公告)日:1994-06-18

    申请号:FI935636

    申请日:1993-12-15

    Applicant: HOECHST AG

    Abstract: The alkaline earth metal/sodium acetate according to the invention comprises from 18 to 22 % by weight of calcium (Ca ), from 0 to 1 % by weight of magnesium (Mg ), from 4 to 7 % by weight of sodium (Na ), from 66 to 75 % by weight of acetate (CH3COO ), from 0 to 7 % by weight of water, and from 0 to 2 % by weight of water-insoluble components. It is prepared by reacting a calcium oxide containing at least 85 % of CaO with acetic acid and sodium hydroxide solution and granulating the reaction product to give particles of from 0.5 to 5 mm. The alkaline earth metal/sodium acetate according to the invention can be used as an environmentally friendly and low-corrosion deicing agent.

    5.
    发明专利
    未知

    公开(公告)号:FI935635A

    公开(公告)日:1994-06-18

    申请号:FI935635

    申请日:1993-12-15

    Applicant: HOECHST AG

    Abstract: The alkaline earth metal/potassium acetate according to the invention comprises from 14 to 19 % by weight of calcium (Ca ), from 0 to 1 % by weight of magnesium (Mg ), from 11 to 16 % by weight of potassium (K ), from 62 to 71 % by weight of acetate (CH3COO ), from 0 to 7 % by weight of water, and from 0 to 2 % by weight of water-insoluble components. It is prepared by reacting a calcium oxide containing at least 85 % of CaO with acetic acid and potassium hydroxide solution and granulating the reaction product to give particles of from 0.5 to 5 mm. The alkaline earth metal/potassium acetate according to the invention can be used as an environmentally friendly and low-corrosion deicing agent.

    6.
    发明专利
    未知

    公开(公告)号:NO934657D0

    公开(公告)日:1993-12-16

    申请号:NO934657

    申请日:1993-12-16

    Applicant: HOECHST AG

    Abstract: The alkaline earth metal/sodium acetate according to the invention comprises from 18 to 22 % by weight of calcium (Ca ), from 0 to 1 % by weight of magnesium (Mg ), from 4 to 7 % by weight of sodium (Na ), from 66 to 75 % by weight of acetate (CH3COO ), from 0 to 7 % by weight of water, and from 0 to 2 % by weight of water-insoluble components. It is prepared by reacting a calcium oxide containing at least 85 % of CaO with acetic acid and sodium hydroxide solution and granulating the reaction product to give particles of from 0.5 to 5 mm. The alkaline earth metal/sodium acetate according to the invention can be used as an environmentally friendly and low-corrosion deicing agent.

    PROCESS FOR THE PREPARATION OF ALKALI METAL ACETATES

    公开(公告)号:CA2084854A1

    公开(公告)日:1993-06-15

    申请号:CA2084854

    申请日:1992-12-08

    Applicant: HOECHST AG

    Abstract: HOE 91/H 030 Process for the preparation of alkali metal acetates To prepare a corrosion-inhibitlng liquid de-icing agent based on alkali metal acetates, 30 to 50 percent strength by weight alkali metal hydroxide solution is introduced into a reaction container provided with a cooling device and a mixing device, and 85 to 100% strength acetic acid is metered into the reaction container until the ratio by weight of acetic acid to alkali metal hydroxide solution therein (0.30 to 0.45) : 1. A portion of this solution is transferred from the reaction container to a stirred dissolving tank and 0.03 to 1% by weight, relative to the batch, of benzotriazole and/or tolyltriazole and/or imidazole is dissolved therein. The resulting solution containing azole is introduced into the reaction container along with 0.01 to 0.2% by weight of phosphoric acid, relative to the batch. Acetic acid continues to be metered into the reaction container until the density of the solution in the reaction container is 1.07 to 1.39 g/cm3 at 20.degree.C. Small amounts of alkali metal hydroxide solution or acetic acid are then introduced into the reaction container until the pH of the solution therein is 9.2 to 9.8. Finally, this solution is withdrawn from the reaction container as a liquid de-icing agent.

    8.
    发明专利
    未知

    公开(公告)号:NO301649B1

    公开(公告)日:1997-11-24

    申请号:NO934656

    申请日:1993-12-16

    Applicant: HOECHST AG

    Abstract: The alkaline earth metal/potassium acetate according to the invention comprises from 14 to 19 % by weight of calcium (Ca ), from 0 to 1 % by weight of magnesium (Mg ), from 11 to 16 % by weight of potassium (K ), from 62 to 71 % by weight of acetate (CH3COO ), from 0 to 7 % by weight of water, and from 0 to 2 % by weight of water-insoluble components. It is prepared by reacting a calcium oxide containing at least 85 % of CaO with acetic acid and potassium hydroxide solution and granulating the reaction product to give particles of from 0.5 to 5 mm. The alkaline earth metal/potassium acetate according to the invention can be used as an environmentally friendly and low-corrosion deicing agent.

    ALKALI-EARTH METAL-POTASSIUM-ACETATE AND METHOD FOR ITS PREPARATION AND ITS USE AS DE-ICER

    公开(公告)号:HUT66799A

    公开(公告)日:1994-12-28

    申请号:HU9303644

    申请日:1993-12-17

    Applicant: HOECHST AG

    Abstract: The alkaline earth metal/potassium acetate according to the invention comprises from 14 to 19 % by weight of calcium (Ca ), from 0 to 1 % by weight of magnesium (Mg ), from 11 to 16 % by weight of potassium (K ), from 62 to 71 % by weight of acetate (CH3COO ), from 0 to 7 % by weight of water, and from 0 to 2 % by weight of water-insoluble components. It is prepared by reacting a calcium oxide containing at least 85 % of CaO with acetic acid and potassium hydroxide solution and granulating the reaction product to give particles of from 0.5 to 5 mm. The alkaline earth metal/potassium acetate according to the invention can be used as an environmentally friendly and low-corrosion deicing agent.

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