摘要:
The present invention relates to a process for manufacturing low-dusting, smoothly-discharging, easily dispersible, powders such as pigmentary titanium dioxide that resist compaction, aging, lumping, and/or caking. Particularly, the present invention relates to a process for treating powders such as pigmentary titanium dioxide with ammonia or a similarly basic substance prior to or during agglomeration to produce a powder with improved bulk handling properties.
摘要:
Catalytic processes to produce a reaction product comprising 1-butanol by contacting a reactant comprising ethanol with a catalyst composition under suitable reaction conditions are provided. The catalyst to composition may comprise a hydroxyapatite of the Formula (MwM′xM′yM′″z)5(PO4)3(OH), wherein M is Mg; M′ is Ca; M″ is Sr; M′″ is Ba; w is any number between 0 and 1 inclusive; x is any number from 0 to less than 0.5; y is any number between 0 and 1 inclusive; z is any number between 0 and 1 inclusive; and w+x+y+z=1. Base-treated catalyst compositions may be used. Also provided are processes for contacting an initial catalyst composition comprising the hydroxyapatite with a base to produce a base-treated catalyst composition, and the base-treated catalyst compositions so obtained.
摘要翻译:提供了在合适的反应条件下通过使包含乙醇的反应物与催化剂组合物接触来生产包含1-丁醇的反应产物的催化方法。 组成的催化剂可以包含式(MwM'xM'yM“z)5(PO4)3(OH)的羟基磷灰石,其中M是Mg; M'是Ca; M“是Sr; M“”是Ba; w是0和1之间的任何数字; x是从0到小于0.5的任何数字; y是0和1之间的任何数字; z是0和1之间的任何数字; 并且w + x + y + z = 1。 可以使用碱处理的催化剂组合物。 还提供了使包含羟基磷灰石的初始催化剂组合物与碱反应以制备碱处理的催化剂组合物的方法,以及如此获得的碱处理的催化剂组合物。
摘要:
Catalytic processes to produce a reaction product comprising 1-butanol by contacting a reactant comprising ethanol with a catalyst composition under suitable reaction conditions are provided. The catalyst composition may comprise a hydroxyapatite of the Formula (MwM′xM″yM′″z)5(PO4)3(OH), wherein M is Mg; M′ is Ca; M″ is Sr; M′″ is Ba; w is any number between 0 and 1 inclusive; x is any number from 0 to less than 0.5; y is any number between 0 and 1 inclusive; z is any number between 0 and 1 inclusive; and w+x+y+z=1. Base-treated catalyst compositions may be used. Also provided are processes for contacting an initial catalyst composition comprising the hydroxyapatite with a base to produce a base-treated catalyst composition, and the base-treated catalyst compositions so obtained.
摘要翻译:提供了在合适的反应条件下通过使包含乙醇的反应物与催化剂组合物接触来生产包含1-丁醇的反应产物的催化方法。 催化剂组合物可以包含式(MwM'xM'yM“z)5(PO4)3(OH)的羟基磷灰石,其中M是Mg; M'是Ca; M“是Sr; M“”是Ba; w是0和1之间的任何数字; x是从0到小于0.5的任何数字; y是0和1之间的任何数字; z是0和1之间的任何数字; 并且w + x + y + z = 1。 可以使用碱处理的催化剂组合物。 还提供了使包含羟基磷灰石的初始催化剂组合物与碱反应以制备碱处理的催化剂组合物的方法,以及如此获得的碱处理的催化剂组合物。