PROCESS FOR MANUFACTURING FORMULATIONS OF CHELATING AGENTS

    公开(公告)号:CA2983960A1

    公开(公告)日:2016-11-17

    申请号:CA2983960

    申请日:2016-04-19

    Applicant: BASF SE

    Abstract: Process for manufacturing a formulation of a chelating agent according to general formula (I): R1-CH(COOX1)-N(CH2COOX1)2, wherein R1 is selected from C1-C4-alkyl, linear or branched, phenyl, benzyl, CH2OH, and CH2CH2COOX1, X1 is (?x?1-x), M being selected from alkali metal, x is in the range of from 0.6 to 1, said formulation comprising in the range of from 0.01 to 20% by weight of water, and at least one organic solvent selected from alkanols with a boiling point at normal pressure that is higher than the boiling point of water, from alkandiols, alkantriols and polyols and mixtures of at least two of the foregoing, said process comprising the following steps: (a) providing an aqueous solution of chelating agent according to general formula (I), (b) adding said organic solvent and (c) removing the water completely or the majority of the water by distillation.

    Method of separating acids from chemical reaction mixtures by means of apolar amines

    公开(公告)号:AU2006311130B2

    公开(公告)日:2012-04-05

    申请号:AU2006311130

    申请日:2006-09-15

    Applicant: BASF SE

    Abstract: The invention relates to a method of separating acids from reaction mixtures comprising at least one product of value which is of low water solubility, by means of at least one apolar amine as auxiliary base, said method comprising the following steps: a) reacting the auxiliary base with the acid to form a salt; b) reacting the salt formed in step a) with a further base which takes over the acid while releasing the auxiliary base; c) extracting the mixture obtained in step b) with water or an aqueous medium, the salt of the further base dissolving in the aqueous phase, and the product of value, or the solution of the product of value in a suitable solvent, and the auxiliary base forming at least one separate, non-aqueous phase; and d) removing, by distillation, the auxiliary base and/or at least part of any solvent present from the at least one non-aqueous phase obtained in step c), in the course of which two immiscible liquid phases may be formed. The invention further relates to a process for preparing thiophosphoramides, to the thiophosphoramides obtainable by this process, and to the use of these thiophosphoramides as an addition to urea-containing mineral and/or organic-mineral fertilizers.

    39.
    发明专利
    未知

    公开(公告)号:NO20083494L

    公开(公告)日:2008-09-08

    申请号:NO20083494

    申请日:2008-08-12

    Applicant: BASF SE

    Abstract: Composition comprises at least two different (thio)phosphoric acidtriamide (I). Composition comprises at least two different (thio) phosphoric acidtriamide (I) of formula (R 1R 2N-P(X)(NH 2) 2). Either R 1, R 2H, 1-10C-alkyl-, 3-10C-cycloalkyl-, 6-10C-aryl- or dialkylaminocarbonyl; or N(R 1+R 2) : 5-6 membered optionally saturated heterocycle, optionally containing 1 or 2 heteroatoms that are replaced by N, O or S; and X : O or S. Independent claims are included for: (1) the preparation of the composition comprising mixing at least two (thio)phosphoricacidtriamide together or transferring thiophosphorylchloride with a mixture of at least two different primary- or secondary amine and subsequently with ammonia; and (2) a urea containing fertilizer comprising the composition.

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