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发明公开
CN102066543A 制备粉末的方法 无效 - 撤回

制备粉末的方法
摘要：
本发明涉及一种制备粉末的方法，所述粉末包含：(i)阴离子去污表面活性剂；(ii)0至10重量％的沸石助洗剂；(iii)0至10重量％的磷酸盐助洗剂；和(iv)0至15重量％的硅酸盐；其中所述方法包括以下步骤：(a)形成包含挥发性化合物的浆液；和(b)将所述浆液通过喷嘴喷雾到干燥装置中；以及(c)干燥所述浆液以形成粉末，其中所述浆液在一定条件下进入到所述喷嘴中，使得：(I)在所述浆液进入所述喷嘴的温度下，所述浆液的压力等于或大于所述挥发性组分的蒸汽压，并且其中所述浆液在一定温度下进入到所述喷嘴中，使得所述挥发性化合物的蒸汽压高于所述干燥装置中的压力；或(II)当所述浆液进入到所述喷嘴中时，所述挥发性组分为超临界形态，并且其中所述干燥装置中的条件使得在所述挥发性组分进入到所述干燥装置中时，至少一部分所述挥发性组分为气态。
摘要（英）：

The present invention relates to a process for preparing a powder comprising: (i) anionic detersive surfactant; (ii) from 0wt% to 10wt% zeolite builder; (iii) from 0wt% to 10wt% phosphate builder; and (iv) from 0wt% to 15wt% silicate salt; wherein the process comprises the steps of: (a) forming a slurry that comprises a volatile compound; and (b) spraying the slurry through a nozzle into a drying apparatus; and (c) drying the slurry to form a powder, wherein the slurry enters the nozzle at conditions such that either: (I) at the temperature at which the slurry enters the nozzle, the slurry is at a pressure that is equal to or greater than the vapour pressure of the volatile component, and wherein, the slurry enters the nozzle at a temperature such that the vapour pressure of the volatile compound is above the pressure in the drying apparatus; or (II) the volatile component is in supercritical form when the slurry enters the nozzle, and wherein, the conditions in the drying apparatus are such that when the volatile component enters the drying apparatus, at least a portion of the volatile component is in gaseous form.

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