ACID RESISTANT PARTICLES OF AN ALKALINE EARTH METAL CARBONATE
    3.
    发明申请
    ACID RESISTANT PARTICLES OF AN ALKALINE EARTH METAL CARBONATE 有权
    碱土金属碳酸盐的耐酸颗粒

    公开(公告)号:US20100041809A1

    公开(公告)日:2010-02-18

    申请号:US11722269

    申请日:2005-12-20

    摘要: Alkaline earth metal carbonate exhibiting a resistance to acids expressed as pH of less than 7 measured after suspending 1.0 g of the particles in a mixture made of 20 ml of toluene and 80 ml of an aqueous phase consisting of deionized water, 11.76 g/L of citric acid monohydrate, 2.57 g/L of NaCl and 0.068 mol/L of NaOH, after 35 minutes of stirring at 25° C. and at 1 000 rpm, or expressed as a moisture pick-up lower than or equal to 2 g water/kg of calcium carbonate after one week of storage at 22° C. and 50% relative humidity, or as a Differential Scanning Calorimetry (DSC) spectrum showing at least one peak between 170 and 190° C. when measured at a heating rate of 10° C./min under nitrogen atmosphere from 25 to 250° C. in open cells. Process for the preparation of said particles, compositions containing said particles and the use thereof.

    摘要翻译: 表现出耐酸性的碱土金属碳酸盐,其表现为pH小于7,将1.0g颗粒悬浮在由20ml甲苯和80ml由去离子水组成的水相中,11.76g / L 柠檬酸一水合物,2.57g / L NaCl和0.068mol / L NaOH,在25℃和1000rpm下搅拌35分钟后,或表现为低于或等于2g水的吸湿 / kg碳酸钙,在22℃和50%相对湿度下储存一周后,或作为差示扫描量热法(DSC)光谱,显示在170和190℃之间的至少一个峰值。当以加热速率 10℃/ min,在氮气氛下,25〜250℃,在开孔中。 所述颗粒的制备方法,含有所述颗粒的组合物及其用途。

    Acid resistant particles of an alkaline earth metal carbonate
    8.
    发明授权
    Acid resistant particles of an alkaline earth metal carbonate 有权
    碱土金属碳酸盐的耐酸颗粒

    公开(公告)号:US08324301B2

    公开(公告)日:2012-12-04

    申请号:US11722269

    申请日:2005-12-20

    IPC分类号: C08K3/26

    摘要: Alkaline earth metal carbonate exhibiting a resistance to acids expressed as pH of less than 7 measured after suspending 1.0 g of the particles in a mixture made of 20 ml of toluene and 80 ml of an aqueous phase consisting of deionized water, 11.76 g/L of citric acid monohydrate, 2.57 g/L of NaCl and 0.068 mol/L of NaOH, after 35 minutes of stirring at 25° C. and at 1 000 rpm, or expressed as a moisture pick-up lower than or equal to 2 g water/kg of calcium carbonate after one week of storage at 22° C. and 50% relative humidity, or as a Differential Scanning Calorimetry (DSC) spectrum showing at least one peak between 170 and 190° C. when measured at a heating rate of 10° C./min under nitrogen atmosphere from 25 to 250° C. in open cells. Process for the preparation of said particles, compositions containing said particles and the use thereof.

    摘要翻译: 表现出耐酸性的碱土金属碳酸盐,其表现为pH小于7,将1.0g颗粒悬浮在由20ml甲苯和80ml由去离子水组成的水相中,11.76g / L 柠檬酸一水合物,2.57g / L NaCl和0.068mol / L NaOH,在25℃和1000rpm下搅拌35分钟后,或表现为低于或等于2g水的吸湿 / kg碳酸钙,在22℃和50%相对湿度下储存一周后,或作为差示扫描量热法(DSC)光谱,显示在170和190℃之间的至少一个峰值。当以加热速率 10℃/ min,在氮气氛下,25〜250℃,在开孔中。 所述颗粒的制备方法,含有所述颗粒的组合物及其用途。