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    Production of non-dusting and non-agglomerating solid fertilizers having good storage properties
    5.
    发明专利
    Production of non-dusting and non-agglomerating solid fertilizers having good storage properties 未知

    公开(公告)号：GB1044806A

    公开(公告)日：1966-10-05

    申请号：GB460864

    申请日：1964-02-04

    Applicant: BASF AG

    Inventor： DETMER OTTHEINRICH ,  OPP KARL ,  MUELLER HERBERT ,  SEIBT HUBERTUS

    IPC: B01J2/30 ,  C05B19/00 ,  C05C1/02 ,  C05D1/00 ,  C05G3/00

    Abstract: A fertilizer is rendered non-dusting and non-caking by coating with 0.01-0.6% of an isomerized drying polyene polymer. The polymer may be obtained from isoprene, piperylene, cyclopentadiene, cyclohexadiene-1,3, butadiene, 3 - methylheptatriene - 1,4,6, or n - decatriene-1, 5,9. It may be copolymerized with up to 50% of ethylene, propylene, butylene, isobutylene, vinyl-acetylene, styrene, a -methylstyrene, or acrylonitrile. It may also contain up to 50% of a polymer which is incapable of further polymerization, e.g. polystyrene or polyacrylonitrile. It may have a molecular weight of 500-40,000. Isomerization may be effected before, during or after coating. The fertilizer may contain ammonium, potassium, calcium, copper, manganese, zinc, phosphate, nitrate, chloride, sulphate, carbonate, or urea. It may be in granules having a diameter of 2-4 mm.

    Ammonium nitrate of low hygroscopicity and high bulk density and a process for the production thereof
    7.
    发明专利
    Ammonium nitrate of low hygroscopicity and high bulk density and a process for the production thereof 未知

    公开(公告)号：GB929132A

    公开(公告)日：1963-06-19

    申请号：GB2720861

    申请日：1961-07-27

    Applicant: BASF AG

    Inventor： DIEKMANN HEINRICH ,  OPP KARL ,  ROOS HERBERT ,  SCHULZ HANS

    IPC: B01J2/30 ,  C01C1/18 ,  C05C1/02 ,  C06B23/00

    Abstract: Ammonium nitrate of high bulk density and low hygroscopicity is produced by adding sodium, magnesium and phosphate ions at a stage in the processing prior to granulation. At least 0,1% sodium ions and 0,5% phosphate ions are added as Na3PO4, or Na2HPO4, or Na+ is added separately as one or more of the salts NaCl, NaNo3, NaF and Na2SO4, and phosphate ion is added as one or more of (NH4)3PO4, (NH4)2HPO4, Ca3(PO4)2, MgHPO4 K2HPO4, and K3PO4. At least 0,1% of Mg++ is added as Mg(NO3)2, MgSO4, MgCl2, or together with phosphate as Mg(NH4)PO4. The preferred proportions of salts are such that 0,3 to 1,0% of each ion, calculated as the oxide P2O5, Na2O and MgO, is present. The salts are added either during neutralization of the nitric acid by NH3, or to the resultant NH4NO3 solution before, or after, concentration, i.e. to an aqueous NH4NO3 solution, or melt. Specification 800,794 is referred to.ALSO:Ammonium nitrate of high bulk density and low hygroscopicity is produced by adding sodium, magnesium, and phosphate ions at a stage in the processing prior to granulation. At least 0,1% sodium ions and 0,05% phosphate ions are added as Na3PO4, or Na2HPO4, or Na+ is added separately as one or more of the salts NaCl, NaNO3, NaF, and Na2SO4, and phosphate ion is added as one or more of (NH4)3PO4, (NH4)2HPO4, Ca3(PO4)2, MgHPO4, K2HPO4, and K3PO4. At least 0,1% Mg++ is added as Mg(NO3)2, MgSO4, MgCl2, or together with phosphate as Mg(NH4)PO4. The preferred proportions of salts are such that 0,3 to 1,0% of each ion, calculated as the oxides P2O5, Na2O, and MgO, is present. The salts are added either during neutralisation of the nitric acid by NH3, or to the resultant NH4NO3 solution before, or after, concentration, i.e. to an aqueous NH4NO3 solution, or melt. Specification 800,794 is referred to.

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