会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明申请
    • Process for Preparing a Powder
    • 制备粉末的方法
    • US20090325847A1
    • 2009-12-31
    • US12486781
    • 2009-06-18
    • Hossam Hassan TantawyNigel Patrick Somerville RobertsUrwin HarrogateDavid William York
    • Hossam Hassan TantawyNigel Patrick Somerville RobertsUrwin HarrogateDavid William York
    • C11D3/06
    • C11D11/02C11D3/0052C11D11/0082C11D11/04
    • The present invention relates to a process for preparing a powder comprising: (i) anionic detersive surfactant; (ii) from 0 wt % to 10 wt % zeolite builder; (iii) from 0 wt % to 10 wt % phosphate builder; and (iv) from 0 wt % to 15 wt % 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.
    • 本发明涉及一种制备粉末的方法,包括:(i)阴离子去污表面活性剂; (ii)0重量%至10重量%的沸石助洗剂; (iii)0重量%至10重量%的磷酸盐助洗剂; 和(iv)0重量%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料; 和(b)通过喷嘴将浆料喷射到干燥装置中; 和(c)干燥浆料以形成粉末,其中浆料在以下条件下进入喷嘴:(I)在浆料进入喷嘴的温度下,浆料的压力等于或大于 比挥发性成分的蒸气压高,并且其中浆料以使得挥发性化合物的蒸气压高于干燥装置中的压力的​​温度进入喷嘴; 或(II)当浆料进入喷嘴时,挥发性成分是超临界形式,并且其中干燥装置中的条件使得当挥发性成分进入干燥装置时,挥发性成分的至少一部分为气态 形成。