Granular detergent builder
    3.
    发明授权
    Granular detergent builder 失效
    颗粒洗涤剂助剂

    公开(公告)号:US5874397A

    公开(公告)日:1999-02-23

    申请号:US675991

    申请日:1996-07-09

    CPC分类号: C11D3/1273 C11D3/10

    摘要: The invention relates to a granular detergent builder in the form of cogranules of a mixture of sodium bicarbonate and crystalline sheet silicates of the formula NaMSi.sub.x O.sub.2x+1 *yH.sub.2 O, where M is sodium or hydrogen, x is a number from 1.9 to 4, and y is a number from 0 to 20, whereina) the granular detergent builder contains 5 to 50% by weight of crystalline sheet silicate and 50 to 95% by weight of sodium bicarbonate;b) has a pH of .ltoreq.10 in 1% strength solution in distilled water;c) has a calcium-binding capacity of .gtoreq.150 mg Ca/g (30.degree. German hardness) and a magnesium-binding capacity of .gtoreq.4 mg Mg/g (3.degree. German hardness), andd) has an apparent density of .gtoreq.850 g/l.The invention likewise relates to a process for the production of such a granular detergent builder, and to its use in detergents and cleaners.

    摘要翻译: 本发明涉及碳酸氢钠和式NaMSixO 2 x + 1 * yH 2 O的结晶片状硅酸盐的混合物形式的颗粒状洗涤剂助洗剂,其中M为钠或氢,x为1.9至4的数,y为 是0至20的数,其中a)颗粒洗涤剂助洗剂含有5至50重量%的结晶硅酸盐和50至95重量%的碳酸氢钠; b)在1%浓度的蒸馏水溶液中具有 / = 150mg Ca / g(30德国硬度)和≥4mgMg / g(3德国硬度)的镁结合能力的钙结合能力,以及d)具有 表观密度> 850g / l。 本发明同样涉及一种生产这种颗粒状洗涤剂助洗剂的方法及其在洗涤剂和清洁剂中的应用。

    Process for producing amorphous sodium silicate
    4.
    发明授权
    Process for producing amorphous sodium silicate 失效
    无定形硅酸钠的制备方法

    公开(公告)号:US5229095A

    公开(公告)日:1993-07-20

    申请号:US839008

    申请日:1992-02-14

    IPC分类号: C01B33/32

    CPC分类号: C01B33/325 C01B33/32

    摘要: A process for producing amorphous sodium silicates having a water content of 0.3 to 6% by weight and an SiO.sub.2 /Na.sub.2 O molar ratio of (1.9 to 2.8) : 1 from a waterglass solution containing at least 20% by weight of solids, the water-glass solution is obtained by reacting quartz sand with sodium hydroxide solution at an SiO.sub.2 /Na.sub.2 O molar ratio of (2.0 to 2.8) : 1 at temperatures of 180 to 240.degree. C. and pressures of 10 to 30 bar. This waterglass solution is treated in a spray-drying zone with hot air at 200 to 300.degree. C. for a residence time of 10 to 20 seconds and at a temperature of the exit gas leaving the spray-drying zone of 90.degree. to 130.degree. C., to form a pulverulent amorphous sodium silicate having a water content (determined as the loss on ignition at 700.degree. C.) of 15 to 23% by weight and a bulk density of more than 300 g/l. The pulverulent sodium silicate is introduced into an obliquely arranged rotary kiln fitted with devices for moving solids and treated therein with flue gas in countercurrent at temperatures from 250.degree. up to 500.degree. C. for 1 to 60 minutes. The rotary kiln is here insulated in such a way that its outside wall temperature is less than 60.degree. C. Finally, the amorphous sodium silicate emerging from the rotary kiln is comminuted by means of a mechanical crusher to grain sizes of 0.1 to 12 mm.

    摘要翻译: 从含有至少20重量%固体的水玻璃溶液制备水含量为0.3-6重量%和SiO 2 / Na 2 O摩尔比为(1.9至2.8):1的无定形硅酸钠的方法, 通过在180-240℃的温度和10至30巴的压力下使石英砂与氢氧化钠溶液以(2.0至2.8):1的SiO 2 / Na 2 O摩尔比反应获得玻璃溶液。 该水玻璃溶液在200〜300℃的热风喷雾干燥区中处理10〜20秒的停留时间,离开喷雾干燥区的出口气体的温度为90〜130℃ 以形成15〜23重量%的含水量(在700℃下测定为灼烧损失)的粉末状无定形硅酸钠,堆积密度大于300g / l。 将粉状硅酸钠引入倾斜布置的旋转窑中,该回转窑装有用于移动固体的装置,并在250℃至500℃的温度下逆流处理烟道气1至60分钟。 回转窑的外壁温度低于60℃,最后将回转窑出现的无定形硅酸钠粉碎成0.1〜12mm的粒径。

    Process for preparing sodium disilicate having a high ion-exchange
capacity
    5.
    发明授权
    Process for preparing sodium disilicate having a high ion-exchange capacity 失效
    具有高离子交换能力的二硅酸钠的制备方法

    公开(公告)号:US5895637A

    公开(公告)日:1999-04-20

    申请号:US723025

    申请日:1996-09-30

    CPC分类号: C11D3/1273 C01B33/38 C11D3/08

    摘要: The invention relates to a process for preparing sodium disilicate in the .beta. form having a high ion-exchange capacity and a molar ratio Na.sub.2 O:SiO.sub.2 of about 1:2 from a silicate source and sodium hydroxide solution at elevated temperature, with the product formed being separated off by filtration, wherein the product is further heat treated at from 450.degree. to 780.degree. C. and/or is pressed to form compact parts.

    摘要翻译: 本发明涉及一种在硅酸盐源和氢氧化钠溶液中在升高的温度下制备具有高离子交换能力和约1:2的Na 2 O:SiO 2的摩尔比为β形式的二硅酸钠的方法,其中形成的产物为 通过过滤分离,其中产物在450℃至780℃进一步热处理和/或被压制以形成紧凑的部件。

    Process for the production of crystalline sodium disilicate in an
externally heated rotary kiln having temperature zones
    6.
    发明授权
    Process for the production of crystalline sodium disilicate in an externally heated rotary kiln having temperature zones 失效
    在具有温度区域的外部加热回转窑中生产结晶二硅酸钠的方法

    公开(公告)号:US5308596A

    公开(公告)日:1994-05-03

    申请号:US986983

    申请日:1992-12-08

    IPC分类号: C01B33/32 C01B33/38

    CPC分类号: C01B33/38

    摘要: To prepare crystalline sodium disilicates having a laminar structure, a molar ratio of SiO.sub.2 to Na.sub.2 O of (1.9 to 2.1) 1 and a water content of less than 0.3% by weight, a water glass solution is first obtained by reacting sand with sodium hydroxide solution in a molar ratio of SiO.sub.2 to Na.sub.2 O of (2.0 to 2.3) : 1 at temperatures of 180.degree. to 240.degree. C. and pressures of 10 to 30 bar. This water glass solution having at least 20% by weight of solids is treated in a spray drier with hot air at 200.degree. to 300.degree. C. with the formation of a pulverulent amorphous sodium disilicate having a water content (determined as loss on heating at 700.degree. C.) of 15 to 23% by weight and a bulk density of at least 300 g/l. The spray-dried pulverulent, amorphous sodium disilicate is ground. The ground sodium disilicate is introduced into a rotary kiln equipped with devices for moving solids, externally heated via the wall and having in its interior a plurality of different temperature zones, and is treated therein at temperatures of 400.degree. to 800.degree. C. for 1 to 60 minutes with formation of crystalline sodium disilicate.

    摘要翻译: 为了制备具有层状结构,SiO 2与Na 2 O的摩尔比(1.9-2.1)1和含水量小于0.3重量%的结晶二硅酸钠,首先通过使沙子与氢氧化钠溶液 在180至240℃的温度和10至30巴的压力下,SiO 2与Na 2 O的摩尔比为(2.0至2.3):1。 具有至少20重量%固体的水玻璃溶液在喷雾干燥器中用200-300℃的热空气处理,形成具有水分含量的粉状无定形二硅酸钠(确定为在 700℃)为15〜23重量%,堆积密度为300g / l以上。 将喷雾干燥的粉状无定形二硅酸钠研磨。 将磨碎的二硅酸钠引入装备有用于移动固体的装置的回转窑,其外部经由壁加热并在其内部具有多个不同的温度区域,并在400℃至800℃的温度下处理1 至60分钟,形成结晶二硅酸钠。

    Process for the peparation of cogranulates comprising aluminosilicates
and sodium silicates
    7.
    发明授权
    Process for the peparation of cogranulates comprising aluminosilicates and sodium silicates 失效
    用于分离包含硅铝酸盐和硅酸钠的颗粒的方法

    公开(公告)号:US5814289A

    公开(公告)日:1998-09-29

    申请号:US688354

    申请日:1996-07-30

    IPC分类号: C11D3/12 C01B33/26 C11D7/14

    CPC分类号: C11D3/128 C11D3/1273

    摘要: Cogranulates of high bulk density which easily disintegrate in water and comprise aluminosilicates and crystalline sodium silicates having a layered structure. The aluminosilicates contained therein are those of the formula M.sub.2/n O.Al.sub.2 O.sub.3. XSiO.sub.2. yH.sub.2 O in which M is an alkali metal or alkaline earth metal, n indicates the valency of the cation, x is.gtoreq.2 and y has a value of between 0 and 8. The sodium silicates have an SiO.sub.2 /Na.sub.2 O ratio of (1.8 to 4.2):1. These cogranulates are prepared by mixing the pulverulent aluminosilicates and sodium silicates with one another and introducing the mixture into a zone in which it is compacted between two rolls rotating in opposite directions to form a compact. After comminution of the compact, the desired particle sizes are finally separated off from the oversize and undersize material. The cogranulates can be used in detergents and cleaning agents.

    摘要翻译: 高堆积密度的钙质,其容易在水中分解并且包含具有层状结构的硅铝酸盐和结晶硅酸钠。 其中含有的硅铝酸盐是式M2 / nO.Al2O3的硅铝酸盐。 XSiO2。 yH 2 O,其中M是碱金属或碱土金属,n表示阳离子的化合价,x是≥2,y的值在0和8之间。硅酸钠的SiO 2 / Na 2 O比为(1.8 至4.2):1。 通过将粉状硅铝酸盐和硅酸钠彼此混合并将混合物引入到在相反方向上旋转的两个辊之间被压实的区域中以形成压块,来制备这些cogranulate。 粉碎粉碎后,最终从尺寸过大和尺寸过小的材料中分离所需的粒径。 可以在洗涤剂和清洁剂中使用。

    Process for the production of crystalline sodium sheet silicate with
kanemite structure
    8.
    发明授权
    Process for the production of crystalline sodium sheet silicate with kanemite structure 失效
    生产具有可卡因结构的结晶硅酸钠硅酸盐的方法

    公开(公告)号:US5456895A

    公开(公告)日:1995-10-10

    申请号:US245371

    申请日:1994-05-18

    CPC分类号: C01B33/38 C11D3/1273

    摘要: The present invention relates to a process for the production of crystalline sodium sheet silicate with kanemite structure with the chemical formulaNaH Si.sub.2 O.sub.5 .multidot.X H.sub.2 Oin which X represents a value between 1 and 3. Crystalline sodium sheet silicate with kanemite structure is produced by maintaining a mixture of sodium disilicate, silica and water in the molar ratio of 1:2:(6-8) at a temperature of 20.degree. to 100.degree. C. for a period of 0.2 to 10 h.

    摘要翻译: 本发明涉及一种制备具有化学式为NaHSi2O5xXH2O的可卡米结构的结晶钠硅酸钠的方法,其中X代表1和3之间的值。具有卡米特结构的结晶钠硅酸钠通过保持 二硅酸钠,二氧化硅和水,摩尔比为1:2:6(6-8),温度为20-100℃,时间为0.2-10小时。

    Process for the preparation of sodium silicates
    9.
    发明授权
    Process for the preparation of sodium silicates 失效
    硅酸钠的制备方法

    公开(公告)号:US5268156A

    公开(公告)日:1993-12-07

    申请号:US839935

    申请日:1992-02-21

    IPC分类号: C01B33/32 C01B33/38 C01B33/24

    CPC分类号: C01B33/38

    摘要: To prepare crystalline sodium silicates having a laminated structure, a molar ratio of SiO.sub.2 to Na.sub.2 O of (1.9 to 2.1) 1 and a water content of less than 0.3% by weight from a water glass solution which has a solids content of at least 20% by weight and is obtained by reaction of sand with sodium hydroxide solution in a molar ratio of SiO.sub.2 : Na.sub.2 O of (2.0 to 2.3) : 1, the water glass solution is treated with hot air of 200.degree. to 300.degree. C. in a spray drying zone to form a pulverulent, amorphous sodium silicate having a water content (determined as the loss on ignition at 700.degree. C.) of 15 to 23% by weight. The pulverulent, amorphous, water-containing sodium silicate is first ground, preferably to particle sizes of 1 to 50 .mu.m, before it is introduced into an inclined rotary tubular oven and treated in this in countercurrent with flue gas at temperatures of more than 500.degree. to 850.degree. C. to form crystalline sodium silicate. The sodium silicate issuing from the rotary tubular oven is first comminuted to particle sizes of 0.1 to 12 mm and finally ground to particle sizes of 2 to 400 .mu.m.

    摘要翻译: 为了制备具有层压结构的结晶硅酸钠,(1.9-2.1)1的SiO 2与Na 2 O的摩尔比和固含量至少为20%的水玻璃溶液的含水量小于0.3重量% ,通过砂(SiO 2 :Na 2 O)摩尔比为(2.0〜2.3):1的砂与氢氧化钠溶液的反应得到,水玻璃溶液用200〜300℃的热风喷雾 干燥区形成15〜23重量%的含水量(以700℃测定为灼烧损失的粉末状)无定形硅酸钠。 粉末状,无定形的含水硅酸钠首先被研磨,优选为1至50μm的粒度,然后将其引入倾斜的旋转管式炉中,并在与500℃以上的温度下与烟道气逆流处理 DEG至850℃,形成结晶硅酸钠。 从旋转管式炉排出的硅酸钠首先粉碎成0.1〜12mm的粒径,最后研磨成2〜400μm的粒径。