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
    • 18. 发明授权
    • Method for producing high solids aqueous acid-resistant calcium
carbonate suspensions and product thereof
    • 高固体含水耐酸性碳酸钙悬浮液及其制品的制造方法
    • US5913973A
    • 1999-06-22
    • US889663
    • 1997-07-08
    • Jose M. RodriguezSteven M. Fortier
    • Jose M. RodriguezSteven M. Fortier
    • C01F11/18C09C1/02
    • C01F11/185C01P2006/10C01P2006/22
    • A method for producing a high solids slurry of an acid-resistant precipitated calcium carbonate for shipping purposes is disclosed. A low solids of about 18 wt. % to 20 wt. % solids slurry is treated with a chemical additive, such as sodium aluminate, in order to impart acid resistance to the calcium carbonate, and is dewatered to form an intermediate solids slurry of about 44 wt. %. This intermediate solids slurry is then diluted with a fraction of the low solids slurry which was treated with the chemical additive, in order to bring the intermediate slurry to a final high solids slurry of about 35 wt. %. Acid is added to the final product slurry in order to reduce the pH of the final slurry to within a buffering range of about 7.0 to 6.5. The final product slurry of about 35 wt. % comprises an acid-resistant calcium carbonate composition with a pH of about 7.0 which can be shipped for ultimate use when making paper under neutral pH conditions. The final product slurry has a Brookfield viscosity ranging from 200 to 500 centipoise at 100 rpm.
    • 公开了用于生产用于运输目的的耐酸沉淀碳酸钙的高固含量浆料的方法。 约18重量%的低固含量 %至20重量% 用化学添加剂如铝酸钠处理%固体浆料,以赋予碳酸钙耐酸性,并脱水以形成约44重量%的中等固体浆料。 %。 然后将该中间体固体浆料用一部分用化学添加剂处理的低固体浆料稀释,以使中间体浆料达到约35重量%的最终高固含量浆料。 %。 将酸加入到最终产物浆料中,以将最终浆料的pH降低至约7.0至6.5的缓冲范围内。 最终产品浆料约35wt。 %包含pH为约7.0的耐酸性碳酸钙组合物,当在中性pH条件下制造纸时,其可以运输以最终用途。 最终产物浆料的布氏粘度在100rpm时为200-500厘泊。
    • 20. 发明授权
    • Defoamer testing apparatus
    • 消泡剂检测仪
    • US5375459A
    • 1994-12-27
    • US166191
    • 1993-12-13
    • Richard GerkeJose M. RodriguezJohn J. Palmer
    • Richard GerkeJose M. RodriguezJohn J. Palmer
    • G01N13/00G01N13/02
    • G01N13/00G01N2013/025
    • An apparatus and method is provided wherein the foam inhibiting effectiveness of defoaming and antifoaming additives on various types of foamable liquid mediums is measured. A single generally cylindrical foam cell having openings at both ends is provided wherein an interchangeable foam cell insert having varied geometry is longitudinally disposed within the foam cell. The foam cell insert is provided with a plurality of centralizer walls extending into the foam cell with an agitator member being carried by the centralizer walls. Foamable liquid medium is introduced into the foam cell and recirculated therethrough to form a dynamic fluid-flow system. As the liquid medium passes through both the foam cell and the foam cell insert, it comes into contact with the agitator member carried by the centralizer walls of the foam cell insert forming foam which accumulates in the foam cell. After a sufficient amount of foam is formed, a defoaming or antifoaming agent is introduced into the foam cell, and its effect on the level of foam present in the foam cell is measured. The interchangeable foam cell inserts are of varying lengths and carry varyingly configured agitator members, so that depending on whether a high or low foaming liquid medium is introduced, an appropriate foam cell insert may be chosen and inserted into the foam cell. The interchangeable foam cell inserts allow for a single foam cell to be used for measuring purposes thus decreasing the cost and potential down-time associated with such testing.
    • 提供了一种设备和方法,其中测量了消泡和消泡添加剂对各种可发泡液体介质的抑泡效果。 提供了在两端具有开口的单个大致圆柱形泡沫电池,其中具有不同几何形状的可互换泡沫电池插件纵向设置在泡沫电池内。 泡沫单元插入件设置有延伸到泡沫单元中的多个扶正器壁,搅拌器构件由中心壁承载。 将可发泡液体介质引入泡沫单元中并通过其循环以形成动态流体流动系统。 当液体介质通过泡沫单元和泡沫单元插入物时,它与由积聚在泡沫单元中的泡沫单元插入物形成泡沫体的中心壁承载的搅拌器构件接触。 在形成足够量的泡沫之后,将消泡剂或消泡剂引入泡沫电池中,并测量其对泡沫电池中存在的泡沫水平的影响。 可互换的泡沫单元插入件具有不同的长度并且携带不同配置的搅拌器构件,使得取决于是否引入高泡沫或低泡沫液体介质,可以选择适当的泡沫单元插入物并将其插入泡沫单元中。 可互换泡沫单元插入物允许将单个泡沫单元用于测量目的,从而降低与这种测试相关联的成本和潜在的停机时间。