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8 records (took 0.019 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE1905834C3

    公开(公告)日：1972-11-09

    申请号：DE1905834

    申请日：1969-02-06

    Applicant: BASF AG

    Inventor： LUETH GERO DR ,  ZINK ROBERT DR ,  NITZSCHMANN ROBERT DR ,  EISENHANER GERHARD DR

    IPC: B01J2/30 ,  C01C1/18 ,  C05C9/00 ,  C05G3/00 ,  C05G3/10 ,  C07C67/00 ,  C07C239/00 ,  C07C273/02 ,  C09K3/22

    Abstract: 1292718 Coated fertilizers BADISCHE ANILIN- & SODA-FABRIK AG 5 Feb 1970 [6 Feb 1969] 5573/70 Headings C1A and C1B [Also in Divisions B2 and C2] A granular or crystalline salt or fertilizer is provided with a coating to avoid dust formation and agglomeration, the coating comprising a polyethylene wax and/or polypropylene wax of mean M.W. from 500 to 10,000 and having a penetrometer number of not more than 3, and a surfactant. Specified salts/fertilizers are urea, calcium nitrate, sodium nitrate, potassium nitrate, calcium ammonium nitrate, nitrophosphates, potassium sulphate, potassium chloride and sodium chloride, and various fertilizers specified by NPK and NPKMg proportions. The surfactant may be anionic, cationic or non-ionic and examples of each type are given.

    Wash tower for purification of inorganic fertiliser waste gases
    2.
    发明专利
    Wash tower for purification of inorganic fertiliser waste gases 未知

    公开(公告)号：DE19731504A1

    公开(公告)日：1998-01-29

    申请号：DE19731504

    申请日：1997-07-22

    Applicant: BASF AG

    Inventor： MEYER BERND DR ,  GRIMMER KARL ,  NITZSCHMANN ROBERT DR ,  JAEGER MICHAEL ,  PURUCKER BERNHARD DR ,  WUNDER RAINER DR

    IPC: B01D53/58 ,  B01D53/78 ,  C05B11/06 ,  C05G1/06 ,  B01D47/06 ,  B01D47/14

    Abstract: Joint purification in a wash column using a washing liquid of waste gases and/or vapours formed in the production of inorganic fertilisers comprises supplying the waste gases and/or vapours to the wash column in at least two separate streams. One of the gas streams is preferably a collective waste gas stream containing the waste gases and/or vapours having a high water content and a high proportion of ammonia (NH3) and where another of the streams is a collective waste gas stream from granulation and drying having a low water content and a low content of ammonia (NH3). The separate streams are distributed using individual distributor systems under fittings in the wash column, the granulation and drying gas stream being distributed above the first stream in the wash column. The wash column (VII) is filled with filling or packing materials (VIIA) and 2 or more separate collective waste gases supply lines connected to separate distributors (IX, X) below the filling in the wash column.

    5.
    发明专利
    未知

    公开(公告)号：DK123090C

    公开(公告)日：1972-10-09

    申请号：DK56170

    申请日：1970-02-05

    Applicant: BASF AG

    Inventor： LUETH GERO DR ,  ZINK ROBERT DR ,  NITZSCHMANN ROBERT DR ,  EISENHAUER GERHARD DR

    IPC: B01J2/30 ,  C01C1/18 ,  C05C9/00 ,  C05G3/00 ,  C05G3/10 ,  C07C67/00 ,  C07C239/00 ,  C07C273/02 ,  C09K3/22

    Abstract: 1292718 Coated fertilizers BADISCHE ANILIN- & SODA-FABRIK AG 5 Feb 1970 [6 Feb 1969] 5573/70 Headings C1A and C1B [Also in Divisions B2 and C2] A granular or crystalline salt or fertilizer is provided with a coating to avoid dust formation and agglomeration, the coating comprising a polyethylene wax and/or polypropylene wax of mean M.W. from 500 to 10,000 and having a penetrometer number of not more than 3, and a surfactant. Specified salts/fertilizers are urea, calcium nitrate, sodium nitrate, potassium nitrate, calcium ammonium nitrate, nitrophosphates, potassium sulphate, potassium chloride and sodium chloride, and various fertilizers specified by NPK and NPKMg proportions. The surfactant may be anionic, cationic or non-ionic and examples of each type are given.

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