Process for the manufacture of zeolites 4A having a high crystallinity
and a fine granulometry and being particularly suitable for the
formulation of detergent compositions
    1.
    发明授权
    Process for the manufacture of zeolites 4A having a high crystallinity and a fine granulometry and being particularly suitable for the formulation of detergent compositions 失效
    用于制造具有高结晶度和细粒度测定法的沸石4A的方法,并且特别适用于制备洗涤剂组合物

    公开(公告)号:US4649036A

    公开(公告)日:1987-03-10

    申请号:US845495

    申请日:1986-03-31

    摘要: The synthesis of zeolites 4A having a high crystallinity and a fine granulometry is disclosed, by the addition in a first stage of a sodium silicate solution to a sodium aluminate solution (containing an excess of NaOH and heated to a temperature of from 50.degree. to 100.degree. C.), and by the crystallization in a second stage at a temperature of from 70.degree. to 105.degree. C., characterized in that the temperature of the sodium silicate solution is lower by at least twenty Centigrade degrees than that of the sodium aluminate solution, the molar ratios SiO.sub.2 :H.sub.2 O and SiO.sub.2 :Na.sub.2 O in the sodium silicate solution being respectively from 0.030 to 0.150 and from 1.95 to 2.30, and the weight ratio between the reaction mother liquor and the zeolite thus formed being from 6.5 to 20.

    摘要翻译: 通过在硅酸钠溶液的第一阶段向铝酸钠溶液中加入(含有过量的NaOH并加热至50至100℃的温度),公开了具有高结晶度和精细粒度测定法的沸石4A的合成 ℃),并且通过在70℃至105℃的温度下在第二阶段中结晶,其特征在于,硅酸钠溶液的温度比铝酸钠的温度低至少二十摄氏度 溶液中,硅酸钠溶液中SiO 2 :H 2 O和SiO 2 :Na 2 O的摩尔比分别为0.030〜0.150和1.95〜2.30,反应母液与由此形成的沸石的重量比为6.5〜20。

    Preparation of zeolites
    2.
    发明授权
    Preparation of zeolites 失效
    沸石的制备

    公开(公告)号:US4340573A

    公开(公告)日:1982-07-20

    申请号:US211888

    申请日:1980-01-09

    IPC分类号: C01B39/02 C01B33/26

    摘要: Synthetic crystalline alumino-silicate zeolites are prepared by combining reactant quantities of alumina, silica, sodium hydroxide and water with zeolite-forming alumino-silicate seeds having the composition 16 Na.sub.2 O: 2 to 9 Al.sub.2 O.sub.3 : 15 SiO.sub.2 : 500 to 2000 H.sub.2 O. The seed compositions may be used to produce Type A, X and Y crystalline alumino-silicate zeolites.

    摘要翻译: 合成的结晶铝硅酸盐沸石通过将氧化铝,二氧化硅,氢氧化钠和水的反应物量与沸石形成的铝硅酸盐种子组合而制备,所述沸石形成铝硅酸盐种子具有组成16Na 2 O:2至9 Al 2 O 3:15SiO 2:500至2000H 2 O。 种子组合物可用于生产A型,X型和Y型结晶铝硅酸盐沸石。

    Continuous process for the production of amorphous sodium
aluminosilicate in an elongated reaction zone
    3.
    发明授权
    Continuous process for the production of amorphous sodium aluminosilicate in an elongated reaction zone 失效
    在细长反应区中生产无定形硅铝酸钠的连续方法

    公开(公告)号:US4278649A

    公开(公告)日:1981-07-14

    申请号:US127383

    申请日:1980-03-05

    摘要: A process for the continuous production of an aqueous, alkaline suspension of x-ray amorphous sodium aluminosilicate having a small particle size of at least 99% by volume of a particle size of less than 50.mu., suitable for conversion into zeolite sodium aluminosilicate of the smallest particle sizes, by mixing an aqueous sodium aluminate solution with an aqueous sodium silicate solution in the presence of excess sodium hydroxide solution at a temperature in the range of from 20.degree. to 103.degree. C., where the solutions being mixed have a mathematical total molar ratio of:1.5 to 9 Na.sub.2 O : 1 Al.sub.2 O.sub.3 : 1 to 7 SiO.sub.2 : 40 to 400 H.sub.2 Oconsisting essentially of the steps of continuously passing one of said two aqueous solutions into the entrance of an elongated substantially circular cross-sectional reaction zone having a ratio of length to diameter of more than 500, continuously splitting the other aqueous solution into at least three partial streams, continuously passing the first of said partial streams into said entrance, continuously passing the mixed contents through said elongated reaction zone divided into a first zone where the mean holding time is from 5 to 60 seconds into a second zone of said elongated reaction zone, continuously passing the remainder of said partial streams separately into downstream zones of said elongated reaction zone, where said mean holding time of the reaction mixture in each of said separate zones of said elongated reaction zone is at least 5 seconds and sufficient to effect substantial mixing of said contents, the mean holding time in the entirety of said elongated substantially circular cross-section reaction zone being at least 3 minutes.

    摘要翻译: 一种连续生产x射线无定形硅铝酸钠的水性,碱性悬浮液的方法,其具有至少99体积%的小于50微米的粒度的小粒径,适用于转化为沸石的硅铝酸钠 通过在过量氢氧化钠溶液存在下,在20至103℃的温度范围内混合铝酸钠水溶液与硅酸钠水溶液,其中混合的溶液具有数学总和 摩尔比为:1.5至9 Na 2 O:1 Al 2 O 3:1至7 SiO 2:40至400H 2 H 2 H组成,其基本上包括以下步骤:将所述两种水溶液中的一种连续通过细长的基本上圆形的横截面反应区的入口, 长度与直径的比例大于500,连续地将另一个水溶液分裂成至少三个部分流,连续地通过第一个所述分裂 l流入所述入口,连续地将混合的内容物通过所述细长反应区域分成第一区域,其中平均保持时间为5至60秒,进入所述细长反应区域的第二区域,连续地将剩余的所述部分流 分开地进入所述细长反应区的下游区,其中所述细长反应区的每个所述分离区中的反应混合物的平均保持时间为至少5秒,并足以使所述内容物实质混合,将平均保持时间 所述细长的基本圆形的横截面反应区的整体为至少3分钟。

    Zeolite A crystals of uniformly small particle size and the manufacture
thereof
    4.
    发明授权
    Zeolite A crystals of uniformly small particle size and the manufacture thereof 失效
    沸石A粒度均匀的晶体及其制造

    公开(公告)号:US4173622A

    公开(公告)日:1979-11-06

    申请号:US866302

    申请日:1978-01-03

    CPC分类号: C01B33/2823 Y10S423/24

    摘要: In the manufacture of zeolite A crystals, characterized by a size in the range of about 1 to about 10 .mu.m (micrometers or microns) the crystal size is controlled to within the range of .+-. 1 .mu.m by seeding a sodium aluminum silicate gel that is free of nucleating particles with a predetermined number of comminuted zeolite A crystals having a number average particle size less than about 0.5 .mu.m.

    摘要翻译: 沸石A晶体的制造中,其尺寸在约1至约10微米(微米或微米)范围内,通过接种硅酸钠铝将晶体尺寸控制在+/- 1微米的范围内 凝胶,其没有具有预定数目的数均粒径小于约0.5μm的粉碎沸石A晶体的成核颗粒。

    Preparation of crystalline 4A zeolites
    5.
    发明授权
    Preparation of crystalline 4A zeolites 失效
    结晶4A沸石的制备

    公开(公告)号:US5474753A

    公开(公告)日:1995-12-12

    申请号:US243076

    申请日:1994-05-16

    IPC分类号: C11D3/12 C01B39/14

    摘要: Crystalline 4A zeolites having high calcium ion exchange capacity, well adapted as builder materials for detergent compositions, are prepared by directly admixing an aqueous sodium silicate solution with a first aqueous sodium aluminate solution in a first reaction vessel to form a hydrogel therefrom, and transferring the hydrogel thus formed to a discrete crystallization zone and therein contacting such hydrogel with a crystallization-effecting amount of a second aqueous sodium aluminate solution to convert same into a crystalline 4A zeolite, and, advantageously, filtering, washing and optionally drying such crystalline 4A zeolite.

    摘要翻译: 通过在第一反应容器中直接将硅酸钠水溶液与第一铝酸钠水溶液直接混合以形成水凝胶来制备具有高钙离子交换能力的结晶4A沸石,其良好适用于洗涤剂组合物的助洗剂材料, 水凝胶如此形成为离散的结晶区,并且其中使这种水凝胶与结晶效应量的第二铝酸钠水溶液接触以将其转化为结晶4A沸石,并且有利地过滤,洗涤和任选地干燥此类结晶4A沸石。

    Process for the continuous crystallization of zeolitic sodium
aluminosilicates of smallest particle size
    6.
    发明授权
    Process for the continuous crystallization of zeolitic sodium aluminosilicates of smallest particle size 失效
    最小粒度的沸石铝硅酸铝的连续结晶工艺

    公开(公告)号:US4371510A

    公开(公告)日:1983-02-01

    申请号:US192483

    申请日:1980-09-30

    摘要: In a process for the production of an aqueous alkaline suspension of low-grit, crystallized zeolitic sodium aluminosilicate of the smallest particle size having the composition0.9 to 1.1 Na.sub.2 O. 1 Al.sub.2 O.sub.3 . 1.8 to 2.5 SiO.sub.2with a water content depending on the degree of drying, which contains at least 99.8% by weight of a particle size of less than 25 .mu.m and has a high cation exchange capability, comprising crystallization of an aqueous alkaline suspension of an x-ray-amorphous sodium aluminosilicate, said suspension having a composition corresponding of the molar ratios of 1.5 to 5 Na.sub.2 O:1 Al.sub.2 O.sub.3 :1 to 4 SiO.sub.2 :40 to 400 H.sub.2 O, at elevated temperatures and recovering crystallized zeolitic sodium aluminosilicate, the improvement consisting of feeding the suspension of the x-ray-amorphous sodium aluminosilicate continuously into a crystallizing reactor having progressively, separately zoned mixing areas with a stage-like effect and having at least 20 stages, wherein the suspension flows first through at least 8 stages in the intake part of the reactor, which intake part of the reactor may comprise up to one third of the total reactor volume, maintaining said suspension in the reactor at a preselected temperature in the range of from 80.degree. to 100.degree. C. until the degree of crystallization of the zeolitic sodium aluminosilicate, determined by x-ray, has reached at least 80% of the theoretically possible crystallinity. and continuously removing the suspension from the end opposite of the intake end of the reactor.

    摘要翻译: 在生产具有0.9-1.1Na 2 O组成的最小粒度的低粒度结晶沸石硅铝酸钠的水性碱性悬浮液的方法中。 1 Al2O3。 1.8至2.5的SiO 2,其水含量取决于干燥程度,其含有至少99.8重量%的粒度小于25μm并具有高阳离子交换能力,包括将碱性悬浮液 x射线无定形硅铝酸钠,所​​述悬浮液在升高的温度下具有对应于1.5至5Na 2 O:1 Al 2 O 3:1至4SiO 2:40至400H 2 O的摩尔比的组成并回收结晶沸石硅铝酸钠,其改进包括 将X射线无定形硅铝酸钠的悬浮液连续地进料到具有阶段状作用并且具有至少20个阶段的逐渐分开分区的混合区域的结晶反应器中,其中悬浮液首先流过至少8个阶段 反应器的进料部分,反应器的进料部分可以占总反应器体积的三分之一,将反应器中的所述悬浮液保持在预设 在80℃至100℃的温度范围内,直到通过X射线测定的沸石硅铝酸钠的结晶度达到理论上可能的结晶度的至少80%。 并且从与反应器的进气端相对的端部连续地移除悬架。

    Industrial process for continuous production of zeolite A
    7.
    发明授权
    Industrial process for continuous production of zeolite A 失效
    连续生产沸石A的工业过程

    公开(公告)号:US4314979A

    公开(公告)日:1982-02-09

    申请号:US105273

    申请日:1979-12-19

    申请人: Jean Deabriges

    发明人: Jean Deabriges

    CPC分类号: C01B33/2823 Y10S423/24

    摘要: A process for continuous preparation of zeolite A of constant and homogeneous quality, consisting of instantly and continously mixing a sodium silicate solution and a sodium aluminate solution in the correct proportions and at an elevated temperature followed by transfer of the resulting slurry to a crystallization reactor. The product is recovered from the crystallization reactor washed and dried.

    摘要翻译: 用于连续制备恒定和均匀质量的沸石A的方法,其包括以正确的比例和在高温下立即和连续地混合硅酸钠溶液和铝酸钠溶液,然后将所得浆料转移到结晶反应器中。 从结晶反应器中回收产物,洗涤并干燥。

    Preparation of finely-divided, water-insoluble silicate
cation-exchangers with a narrow particle size spectra
    8.
    发明授权
    Preparation of finely-divided, water-insoluble silicate cation-exchangers with a narrow particle size spectra 失效
    制备具有窄粒度光谱的细分的水不溶性硅酸盐阳离子交换剂

    公开(公告)号:US4271135A

    公开(公告)日:1981-06-02

    申请号:US81824

    申请日:1979-10-04

    摘要: A method for the preparation of finely-divided, water-insoluble, aluminosilicate cation-exchangers with a narrow particle size spectra suitable for detergent formulations comprising:(1) agitating a water-dissolved alkali metal silicate at a temperature of from 55.degree. C. to 95.degree. C.(2) mixing therewith at a temperature of from 55.degree. C. to 95.degree. C. over a period of from three seconds to five minutes with vigorous agitation, a water-dissolved alkali metal aluminate, in the presence of an excess of alkali to give a suspension of a silicate compound containing bound water and having a calcium binding power, when measured at 22.degree. C. by the Calcium Binding Power Test Method, of at least 50 mg CaO/gm of anhydrous active substance, and having the formula, bound water not shown,(M.sub.2 O).sub.0.8-1.3.Al.sub.2 O.sub.3.(SiO.sub.2).sub.1.75-2.0 wherein M represents an alkali metal, wherein said reactant solutions when mixed have a composition corresponding to the desired Al.sub.2 O.sub.3 and SiO.sub.2 amounts of the above formula, with a ratio of from 3.2 to 4.4 mols M.sub.2 O/mol Al.sub.2 O.sub.3 and a ratio of from 70 to 85 mols of water/mol Al.sub.2 O.sub.3,(3) maintaining said silicate compound suspension after said mixing step is completed, for a period of from two to twenty minutes under the agitation and temperature conditions of said mixing step,(4) rapidly heating said silicate compound suspension at least 5.degree. C. above the temperature of said mixing step to a temperature of from 60.degree. C. to 100.degree. C.,(5) allowing said silicate compound suspension to crystallize at said elevated temperature of from 60.degree. C. to 100.degree. C. while agitating sufficiently to keep said suspension flowable,(6) adjusting said crystalline silicate compound suspension to a pH of below 12.5, and(7) recovering said crystalline silicate compound.

    摘要翻译: 一种制备具有适用于洗涤剂配方的窄粒度光谱的细分散的水不溶性铝硅酸盐阳离子交换剂的方法,包括:(1)在55℃的温度下搅拌水溶性碱金属硅酸盐 至95℃。(2)在剧烈搅拌下,在三分钟至五分钟的时间内,在55℃至95℃的温度下混合,在水溶性的碱金属铝酸盐存在下, 过量的碱使得含有结合水并具有钙结合力的硅酸盐化合物的悬浮液,当在22℃下通过钙结合力测试方法测量至少50mg CaO / gm的无水活性物质时, 具有下式的结合水(M 2 O)0.8-1.3.Al 2 O 3(SiO 2)1.75-2.0其中M表示碱金属,其中所述反应物溶液在混合时具有对应于所需Al 2 O 3和SiO 2量的组成 上面的公式,用 3.2〜4.4摩尔M 2 O /摩尔Al 2 O 3的比例和70〜85摩尔的水/摩尔Al 2 O 3的比例,(3)在所述混合步骤之后保持所述硅酸盐化合物悬浮液的时间为2〜20秒 在所述混合步骤的搅拌和温度条件下分钟,(4)将所述硅酸盐化合物悬浮液在所述混合步骤的温度下快速加热至少5℃至60℃至100℃, 5)允许所述硅酸盐化合物悬浮液在60℃至100℃的所述升高温度下结晶,同时充分搅拌以保持所述悬浮液可流动,(6)将所述结晶硅酸盐化合物悬浮液调节至pH低于12.5, (7)回收所述结晶硅酸盐化合物。