Process for preparing a pentasil zeolite
    21.
    发明授权
    Process for preparing a pentasil zeolite 失效
    戊烷沸石的制备方法

    公开(公告)号:US4721609A

    公开(公告)日:1988-01-26

    申请号:US903625

    申请日:1986-09-02

    IPC分类号: C01B39/36 C07C1/20 C01B33/28

    摘要: Templating compounds of the formula:(HO--C.sub.2 H.sub.4).sub.3 N.sup..sym. --(CH.sub.2).sub.n -N.sup..sym. (C.sub.2 H.sub.4 --OH).sub.3 2 Br.sup..crclbar.wherein n equals 3, 4 or 5 are produced by reacting triethanolamine with .alpha., .omega.dibromoalkanes, for example in the presence of a solvent. One can also react dibromoalkane with the triethanolamine in dropwise manner at reaction temperature. The product is subsequently recovered by known methods. The templating compositions can be used for the preparation of the zeolites of the pentasil types. These zeolites have the composition represented by the summary formula:(0.4-0.7)Na.sub.2 O/(0.3-0.6)Q.sub.2 O/Al.sub.2 O.sub.3 /(30-80)SiO.sub.2 /(4-10)H.sub.2 Oand have the following X-ray diffraction pattern:______________________________________ d .ANG. I/Io ______________________________________ 11.0 .+-. 0.2 30-70 10.0 .+-. 0.2 30-80 4.4 .+-. 0.1 10-20 4.3 .+-. 0.1 10-20 3.85 .+-. 0.05 100 3.74 .+-. 0.05 40-65 3.66 .+-. 0.05 20-40 3.43 .+-. 0.03 15-25 2.01 .+-. 0.02 5-15 1.99 .+-. 0.02 5-15 ______________________________________ They are prepared by utilizing an aqueous suspension of precipitated silica and mixing with an aqueous sodium aluminate composition and an aqueous solution of the template compound. This mixture is then converted under autogeneous pressure, the product is dried and then calcined. The pentasil type zeolites can be used in the conversion of methanol into hydrocarbons.

    摘要翻译: 式(HO-C2H4)3N(+) - (CH2)nN(+)(C2H4-OH)3 2 Br( - )的模板化合物其中n等于3,4或5是通过使三乙醇胺与α, ω二溴烷烃,例如在溶剂存在下。 也可以在反应温度下将二溴烷烃与三乙醇胺反应一次。 随后通过已知方法回收产物。 模板组合物可用于制备pentasil类型的沸石。 这些沸石具有由以下总结式表示的组成:(0.4-0.7)Na 2 O /(0.3-0.6)Q 2 O / Al 2 O 3 /(30-80)SiO 2 /(4-10)H 2 O,并且具有以下X射线衍射图: -d ANGSTROM I / Io -11.0 +/- 0.2 30-70 -10.0 +/- 0.2 30-80 -4.4 +/- 0.1 10-20 -4.3 +/- 0.1 10-20 -3.85 +/- 0.05 100 - 3.74 +/- 0.05 40-65 -3.66 +/- 0.05 20-40 -3.43 +/- 0.03 15-25 -2.01 +/- 0.02 5-15 -1.99 +/- 0.02 5-15 - 它们通过利用 将沉淀二氧化硅的水性悬浮液与铝酸钠水溶液组合物和模板化合物的水溶液混合。 然后将该混合物在自动压力下转化,产物干燥,然后煅烧。 pentasil型沸石可用于将甲醇转化为烃。

    Zeolite granulate, process for its production and use
    23.
    发明授权
    Zeolite granulate, process for its production and use 失效
    沸石颗粒,其生产和使用过程

    公开(公告)号:US4620399A

    公开(公告)日:1986-11-04

    申请号:US738260

    申请日:1985-05-28

    摘要: According to the invention there are produced sodium Zeolite A granulates having the following parameters:______________________________________ Adsorption Data: (p/po = 0.8, 20.degree. C.) ______________________________________ H.sub.2 O > 22.0% NH.sub.3 > 11.0% CO.sub.2 .ltoreq. 0.1% O.sub.2 .ltoreq. 0.1% N.sub.2 .ltoreq. 0.1% Ar .ltoreq. 0.1% CH.sub.3 OH .ltoreq. 0.2% CH.sub.3 --CH.sub.2 --OH .ltoreq. 0.2% ______________________________________ The zeolite granulate is produced by having zeolite A powder present in a mixer, adding alkali silicate solution, mixing until there are obtained zeolite granulates having a particle size of at least 0.1 mm, in a given case post-rolling the granulates, first drying the moist zeolite granulates with air in a fluidized bed drier at a temperature of 20.degree. to 39.degree. C., during which the carbon dioxide content of the drying air is adjusted to less than 200 ppm, subsequently drying in a second drying step at a temperature of 40.degree.-120.degree. C. and in a given case drying in a third drying step at 121.degree.-200.degree. C. under otherwise the same conditions and subsequently activating the thus obtained granulates at a temperature of at most 600.degree. C. in a rotary tube. The zeolite granulate is used in the production of insulating glass windows.

    摘要翻译: 根据本发明,产生具有以下参数的沸石A颗粒: - 吸附数据:(p / po = 0.8,20℃)-H 2 O 2 22.0%-NH 3> 11.0%-CO 2 = 0.1% O 2

    Process for the internal coating of contact tubes
    24.
    发明授权
    Process for the internal coating of contact tubes 失效
    接触管内部涂层的工艺

    公开(公告)号:US4415485A

    公开(公告)日:1983-11-15

    申请号:US300298

    申请日:1981-09-08

    CPC分类号: B05C7/04 B05D7/222

    摘要: The previously carried out internal coating of contact tubes not only required very much manual labor and was very time consuming, but it was also unsatisfactory in regard to adhesion of the contact liquid to the surface and homogenity of the catalyst. By the simultaneous action of heat on the liquid interface in the tubes during the lowering of the liquid level as well as by a specially suited apparatus for this purpose which operates according to the principle of communicating tubes there is provided the possibility of a good adhesion to the surface as well as the formation of a homogeneous layer at very little operating expense.

    摘要翻译: 先前进行的接触管的内部涂层不仅需要非常多的手工劳动,并且非常耗时,而且对于接触液体对表面的粘附和催化剂的均匀性也是不令人满意的。 通过在液面降低期间在管中的液体界面上的热同时作用以及根据连通管的原理的特别适合的用于该目的的设备,提供了对 表面以及以非常小的操作费用形成均匀的层。

    Process for the manufacture of (iodoorganyl)alkoxysilanes
    25.
    发明授权
    Process for the manufacture of (iodoorganyl)alkoxysilanes 失效
    (碘代有机基)烷氧基硅烷的制备方法

    公开(公告)号:US4362885A

    公开(公告)日:1982-12-07

    申请号:US330355

    申请日:1981-12-14

    IPC分类号: C07F7/18 C07F7/08

    CPC分类号: C07F7/1888

    摘要: The subject of the invention is a process for the manufacture of (iodoorganyl)alkoxysilanes of the general formula: ##STR1## in which R.sup.1 is an alkylene group, R.sup.2 is an alkoxy group and R.sup.3 and R.sup.4 an alkoxy group and/or an alkyl or aryl group, whereby the chlorine or bromine compound corresponding to that of formula (1) is caused to react with stoichiometric to double molar quantities of an inorganic iodine donor in the presence of 0.01-5 mol % of an organic substituted onium salt of nitrogen, phosphorus, arsenic or antimony or an organic substituted sulfonium salt or a crown ether as catalyst, in certain solubilizing agents.

    摘要翻译: 本发明的主题是制备通式如下的(碘代有机基)烷氧基硅烷的方法:其中R1是亚烷基,R2是烷氧基,R3和R4是烷氧基和/或 烷基或芳基,其中使与对应于式(1)的氯或溴化合物在0.01-5mol%的有机取代鎓盐的存在下与化学计量比与双摩尔量的无机碘供体反应 的氮,磷,砷或锑或有机取代的锍盐或冠醚作为催化剂,在某些增溶剂中。

    Process for the production of hydrogen cyanide
    26.
    发明授权
    Process for the production of hydrogen cyanide 失效
    生产氰化氢的方法

    公开(公告)号:US4320104A

    公开(公告)日:1982-03-16

    申请号:US183955

    申请日:1980-09-03

    IPC分类号: C01C3/02

    CPC分类号: C01C3/0233

    摘要: By introducing the reaction gas mixture of hydrocarbons and ammonia at increased velocity through an inlet tube with one or more openings in a customary reaction tube in the hydrocyanic acid-methane-ammonia (BMA) process the yield of HCN is increased considerably.

    摘要翻译: 通过在氢氰酸 - 甲烷 - 氨(BMA)方法的常规反应管中通过具有一个或多个开口的入口管以增加的速度引入烃和氨的反应气体混合物,HCN的产率显着增加。

    Process for the production of hydrogen cyanide
    27.
    发明授权
    Process for the production of hydrogen cyanide 失效
    生产氰化氢的方法

    公开(公告)号:US4317808A

    公开(公告)日:1982-03-02

    申请号:US208026

    申请日:1980-11-18

    摘要: For the reduction of the ammonia content in the product gas of the hydrocyanic acid-methane-ammonia (BMA) process and accordingly to increase the yield the reaction gas mixture of this process is brought into contact with zeolite and the ammonia thereafter desorbed from the zeolite preferably again employed in the reaction step. If the desorption is carried out with a flushing gas such as the hydrocarbon used in the reaction then this mixture can be directly supplied again to the BMA reactor. Through this procedure the amount of ammonia previously lost to the process can again be made useful in the process itself.

    摘要翻译: 为了降低氢氰酸 - 甲烷 - 氨(BMA)工艺的产物气中的氨含量,并且为了提高产率,该方法的反应气体混合物与沸石接触,然后氨从沸石中脱附 优选在反应步骤中再次使用。 如果用反应中使用的烃类的冲洗气体进行解吸,则可以将该混合物再次直接供给到BMA反应器。 通过这个过程,过程中丢失的氨的量可以再次在该过程本身中有用。

    Thermally split zirconium silicate, method of its production and use
    29.
    发明授权
    Thermally split zirconium silicate, method of its production and use 失效
    热分解硅酸锆,其生产和使用方法

    公开(公告)号:US5614011A

    公开(公告)日:1997-03-25

    申请号:US481699

    申请日:1995-06-07

    IPC分类号: C01G25/02 F27D3/14 C01B13/18

    摘要: Thermally split zirconium silicate is produced such that the crystalline zirconium dioxide embedded in an amorphous silica phase exhibits an average grain or particle size (d.sub.50 value) in a range of 0.5 .mu.m to 3.0 .mu.m and a specific surface (BET) in a range of 3 to 15 m.sup.2 /g. The zirconium dioxide produced by this method is particularly suited for the production of zirconium silicate pigments with improved color characteristics. The thermally split zirconium silicate is also particularly well suited for processes used in the obtention of zirconium dioxide. The method of producing the thermally split zirconium silicate includes melting zirconium silicate in an induction melting furnace and cooling off a free falling stream of melt by blowing on it with a gas and/or spraying it with water.

    摘要翻译: 制备热分解硅酸锆,使得嵌入无定形二氧化硅相中的结晶二氧化锆在0.5μm至3.0μm的范围内表现出平均晶粒或粒径(d50值),在一定范围内的比表面积(BET) 为3至15m2 / g。 通过该方法制备的二氧化锆特别适合于生产具有改进的颜色特性的硅酸锆颜料。 热裂硅酸锆也特别适用于获得二氧化锆的工艺。 制造热裂硅酸锆的方法包括在感应熔化炉中熔化硅酸锆,并用气体吹送和/或用水喷雾来冷却游离的熔体流。

    Modified molecular sieves by means of solid ion exchange
    30.
    发明授权
    Modified molecular sieves by means of solid ion exchange 失效
    通过固体离子交换改性分子筛

    公开(公告)号:US5529964A

    公开(公告)日:1996-06-25

    申请号:US388832

    申请日:1995-02-15

    CPC分类号: B01J37/30 B01J29/74

    摘要: Molecular sieves are modified by an ion exchange process where metal cations are introduced into the molecular sieves by means of solid state ion exchange. The solid state ion exchange can be carried out as follows: a weighed amount of calcined and activated zeolite is intimately mixed with a precalculated amount of PtCl.sub.2, PdCl.sub.2, RhCl.sub.3, CuCl.sub.2, V.sub.2 O.sub.5 or another compound of the noble metals (e.g., corresponding halides or oxides), the solids mixture is then heated in a current of inert gas (e.g., a current of helium gas or of nitrogen) to temperatures of 400.degree. to 600.degree. C., then cooled down to room temperature and subsequently reduced in a current of hydrogen for 10 to 14 hours at 280.degree. to 350.degree. C. in order to produce small metal clusters from the cationically introduced metal.

    摘要翻译: 分子筛通过离子交换方法进行改性,其中通过固态离子交换将金属阳离子引入分子筛中。 固态离子交换可以如下进行:称重量的煅烧和活化的沸石与预先计算量的PtCl 2,PdCl 2,RhCl 3,CuCl 2,V 2 O 5或贵金属的另一种化合物(例如,相应的卤化物或 氧化物),然后将固体混合物在惰性气体(例如,氦气或氮气流)中加热至400至600℃的温度,然后冷却至室温,随后减少电流 的氢气在280〜350℃下进行10〜14小时,以从阳离子导入的金属产生小的金属簇。