Magnesium-silicate bound zeolite granulates of the type of zeolite A,
process for their production and use
    92.
    发明授权
    Magnesium-silicate bound zeolite granulates of the type of zeolite A, process for their production and use 失效
    沸石A类型的硅酸镁结合沸石颗粒,其生产和使用过程

    公开(公告)号:US4668648A

    公开(公告)日:1987-05-26

    申请号:US827926

    申请日:1986-02-10

    CPC分类号: B01J20/183 A24D3/166

    摘要: Magnesium-silicate bound zeolite granulates of type A are disclosed wherein the zeolite component does not contain magnesium exclusively, or contains no magnesium at all, as the cation. The granulates are produced by placing powdered zeolite A in a mixer, adding sodium silicate solution, mixing until zeolite granulates with a grain size of at least 0.1 mm are obtained, optionally after-rolling these zeolite granulates, optionally initially drying the moist zeolite granulates at temperatures of 20 to 39 degrees C., during which the carbon dioxide content of the drying air is adjusted to less than 200 ppm, then optionally drying in a second drying step at temperatures of 40-120 degrees C. and optionally in a third drying stage at 121-200 degrees C. under otherwise identical conditions, and then optionally activating the granulates thus obtained at temperatures of 600 degrees C. maximum. The granulates thus obtained are treated with an aqueous magnesium salt solution, washed, then optionally treated with aqueous metal salt solution, washed, dried at 40-200 degrees C., preferably 100 to 120 degrees C., and then optionally calcined at 300 to 650 degrees C.

    摘要翻译: 公开了A型的硅酸镁结合的沸石颗粒,其中沸石组分不含镁,或完全不含有镁作为阳离子。 颗粒是通过将粉末状沸石A置于混合器中,加入硅酸钠溶液,混合直到得到粒度至少为0.1mm的沸石颗粒,任选地后轧这些沸石颗粒,任选地首先将湿沸石颗粒干燥 温度为20至39摄氏度,在此期间将干燥空气的二氧化碳含量调节至小于200ppm,然后任选地在第二干燥步骤中在40-120℃的温度和任选地在第三次干燥 在121-200℃的条件下,在相同的条件下,然后任选地在600摄氏度的温度下活化由此获得的颗粒最大值。 将如此得到的颗粒用镁盐水溶液处理,洗涤,然后任选用金属盐水溶液处理,洗涤,在40-200℃,优选100-120℃下干燥,然后任选在300℃煅烧至 650摄氏度

    Process for the production of a seed mixture for faujasite synthesis
    96.
    发明授权
    Process for the production of a seed mixture for faujasite synthesis 失效
    用于生产八面沸石合成种子混合物的方法

    公开(公告)号:US4608236A

    公开(公告)日:1986-08-26

    申请号:US593164

    申请日:1984-03-26

    CPC分类号: C01B39/20 Y10S423/21

    摘要: A seed mixture is produced by reacting an amorphous, synthetic sodium aluminum silicate with an Na.sub.2 O-supplying compound in an aqueous system at temperatures of 10.degree. to 35.degree. C. (room temperature). The seed mixture exhibits a composition of Na.sub.2 O:Al.sub.2 O.sub.3 :SiO.sub.2 :H.sub.2 O=(12.+-.3):1:(15.+-.3):(240.+-.60). This seed mixture can be used in the synthesis of zeolite Y and/or zeolite X.

    摘要翻译: 通过使无定形合成的硅酸铝钠与供水化合物NaO在10至35℃(室温)的水溶液体系中反应制备种子混合物。 种子混合物显示组成为Na 2 O:Al 2 O 3 :SiO 2 :H 2 O =(12 +/- 3):1:(15 +/- 3):(240 +/- 60)。 该种子混合物可用于合成沸石Y和/或沸石X.

    Bis-(silylethyl)-oligosulphides and process for their production
    100.
    发明授权
    Bis-(silylethyl)-oligosulphides and process for their production 失效
    双(甲硅烷基乙基) - 二硫化物及其生产方法

    公开(公告)号:US4408064A

    公开(公告)日:1983-10-04

    申请号:US106862

    申请日:1979-12-26

    摘要: Novel bis-(silylethyl)-oligosulphides are obtained by reacting a vinyl silane of the formula (CH.sub.2 .dbd.CH).sub.m -SiR.sub.n.sup.1 R.sub.4-(m+n) in which R represents chlorine, bromine, iodine, C.sub.1 -C.sub.3 -alkoxy, 2-methoxyethoxy, 2-ethoxyethoxy or hydroxy, R.sup.1 represents C.sub.1 -C.sub.3 -alkyl, phenyl or C.sub.5 -C.sub.7 -cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m+n is 1, 2 or 3 with sulphur as well as in a given case hydrogen sulphide in molar ratios of vinyl silane to sulphur of from 1:2.5 to 1:10 and vinyl silane to hydrogen sulphide of from 1:0 to 1:5 at temperatures between about 100.degree. and 200.degree. C. under pressure of from 1 to 25 bars (total pressure at the reaction temperature) and in the presence of sulphidation catalysts known per se, in a given case followed by hydrolysis or partial hydrolysis of the reaction products. The bis-(silylethyl)-oligosulphides are used as reinforcing additives (adhesive agents) in crosslinkable rubber mixtures containing silicate fillers and in a given case carbon black as well as in a given case sulphur and other customary constituents.

    摘要翻译: 通过使式(CH2 = CH)m-SiRn1R4-(m + n)的乙烯基硅烷(其中R表示氯,溴,碘,C1-C3-烷氧基,2-甲基苯基) 甲氧基乙氧基,2-乙氧基乙氧基或羟基,R1代表C1-C3-烷基,苯基或C5-C7-环烷基,n是0,1或2,m是1或2,m + n是1,2或3, 以及在给定情况下,在约100至200℃的温度下,乙烯基硅烷与硫的摩尔比为1:2.5至1:10的硫化氢和乙烯基硅烷至硫化氢的摩尔比为1:0至1:5 在1至25巴的压力(在反应温度下的总压力)和本身已知的硫化催化剂的存在下,在给定的情况下随后水解或部分水解反应产物。 双(甲硅烷基乙基) - 二硫化物用作含有硅酸盐填料的交联性橡胶混合物中的增强添加剂(粘合剂),在给定情况下用于炭黑以及在给定情况下硫和其它常规组分。