Silica guard bed for adsorbent used in an aqueous system
    1.
    发明授权
    Silica guard bed for adsorbent used in an aqueous system 失效
    用于水系统的吸附剂用二氧化硅保护床

    公开(公告)号:US4226639A

    公开(公告)日:1980-10-07

    申请号:US042479

    申请日:1979-05-25

    CPC classification number: C13B20/123 C13K13/007

    Abstract: A process for separating a component from a feed mixture comprising an aqueous solution of a mixture of different components, such as a mixture of saccharides, in which the mixture is contacted with an adsorbent comprising a crystalline aluminosilicate which selectively adsorbs a component from the feed mixture. The adsorbed component is then recovered by contacting the adsorbent with a desorbent material such as water to effect the desorption of the adsorbed component from the adsorbent. There is an undesirable tendency for the silicon constituent of the crystalline aluminosilicate to dissolve in the aqueous system. The improvement to the process comprises contacting the desorbent, and/or the feed mixture, with a bed of silica gel prior to contacting the feed mixture with the adsorbent. This effects a substantial reduction in the undesirable dissolution.

    Abstract translation: 从包含不同组分的混合物的水溶液(例如糖的混合物)的进料混合物中分离组分的方法,其中混合物与包含结晶硅铝酸盐的吸附剂接触,所述结晶硅铝酸盐选择性地从进料混合物中吸附组分 。 然后通过使吸附剂与解吸剂材料如水接触来回收吸附的组分,以实现吸附组分从吸附剂的解吸附。 结晶硅铝酸盐的硅成分溶解在水性体系中是不希望的。 该方法的改进包括在将进料混合物与吸附剂接触之前使脱附剂和/或进料混合物与硅胶床接触。 这会大大减少不希望的溶解。

    Catalytic composite and method of manufacture
    2.
    发明授权
    Catalytic composite and method of manufacture 失效
    催化复合材料及其制造方法

    公开(公告)号:US4113659A

    公开(公告)日:1978-09-12

    申请号:US786527

    申请日:1977-04-11

    Inventor: Edward Michalko

    CPC classification number: B01J29/18 C07C6/123

    Abstract: A catalytic composite of improved activity and a method of manufacture is disclosed. The catalytic composite is particularly effective with respect to the transalkylation of toluene. The catalytic composite comprises a zeolite of the mordenite crystal structure in from about a 1:3 to about a 3:1 weight ratio with a refractory inorganic oxide. The catalytic composite is characterized by a method of preparation which comprises subjecting zeolite of the mordenite crystal structure, with a sodium content of less than about 5 wt. % as Na.sub.2 O, to an aqueous ammoniacal treatment at a pH of at least about 9.5 in admixture with a substantially acid anion-free refractory inorganic oxide.

    Abstract translation: 公开了一种改进活性的催化复合材料和制造方法。 催化复合物在甲苯的烷基转移方面特别有效。 催化复合材料包含丝光沸石晶体结构的沸石,与耐火无机氧化物的重量比为约1:3至约3:1。 催化复合材料的特征在于一种制备方法,该方法包括使钠丝含量低于约5重量%的丝光沸石晶体结构的沸石。 %的Na 2 O,与基本上不含酸性阴离子的难熔性无机氧化物混合的pH至少约9.5的氨水处理。

    Preparation of silica-alumina macrospheres
    3.
    发明授权
    Preparation of silica-alumina macrospheres 失效
    二氧化硅 - 氧化铝大球的制备

    公开(公告)号:US4129522A

    公开(公告)日:1978-12-12

    申请号:US848171

    申请日:1977-11-03

    Inventor: Edward Michalko

    CPC classification number: B01J35/08 B01J37/00

    Abstract: An improved method of preparing silica-alumina macrospheres is disclosed. An alkali metal silicate solution is acidified with a strong mineral acid and a weak organic acid. The resulting silica sol is admixed with an acidic alumina sol and urea and the mixture is dispersed as droplets in a hot oil bath with the formation of firm spheroidal hydrogel particles. The method insures the formation of firm hydrogel particles which will retain their structural integrity during further processing. The hydrogel spheres are aged, washed, dried and calcined in accordance with prior art methods.

    Abstract translation: 公开了一种制备二氧化硅 - 氧化铝大球的改进方法。 碱金属硅酸盐溶液用强无机酸和弱有机酸酸化。 将所得硅溶胶与酸性氧化铝溶胶和尿素混合,并将混合物以液滴形式分散在热油浴中形成稳定的球状水凝胶颗粒。 该方法确保形成稳固的水凝胶颗粒,这将在进一步加工期间保持其结构完整性。 将水凝胶球按照现有技术方法进行老化,洗涤,干燥和煅烧。

    Catalytic composite and method of manufacture
    4.
    发明授权
    Catalytic composite and method of manufacture 失效
    催化复合材料及其制造方法

    公开(公告)号:US4107086A

    公开(公告)日:1978-08-15

    申请号:US786524

    申请日:1977-04-11

    Inventor: Edward Michalko

    CPC classification number: B01J29/18 C07C6/123

    Abstract: A catalytic composite of improved activity and a method of manufacture is disclosed. The catalytic composite is particularly effective with respect to the transalkylation of toluene. The catalytic composite comprises a zeolite of the mordenite crystal structure in from about a 1:3 to about a 3:1 weight ratio with a refractory inorganic oxide. The catalytic composite is characterized by a method of preparation which comprises subjecting zeolite of the mordenite crystal structure, with a sodium content of less than about 5 wt. % as Na.sub.2 O, to an aqueous ammoniacal treatment at a pH of at least about 9.5, and thereafter admixing said zeolite with said refractory inorganic oxide.

    Abstract translation: 公开了一种改进活性的催化复合材料和制造方法。 催化复合物在甲苯的烷基转移方面特别有效。 催化复合材料包含丝光沸石晶体结构的沸石,与耐火无机氧化物的重量比为约1:3至约3:1。 催化复合材料的特征在于一种制备方法,其包括使钠丝含量低于约5wt%的丝光沸石晶体结构的沸石。 %至Na 2 O,在至少约9.5的pH下进行氨水处理,然后将所述沸石与所述耐火无机氧化物混合。

    Hydrotreating catalyst
    5.
    发明授权
    Hydrotreating catalyst 失效
    加氢处理催化剂

    公开(公告)号:US3972833A

    公开(公告)日:1976-08-03

    申请号:US533578

    申请日:1974-12-17

    CPC classification number: B01J21/12 B01J23/85 B01J35/08 C10G45/08

    Abstract: A catalytic composite comprising a Group VIB and a Group VIII metal or metal oxide on a silica-alumina support or carrier material. A catalytic composite particularly useful for the hydrotreating or hydrorefining of petroleum hydrocarbon fractions results from the use of a silica-alumina support or carrier material formed by the gelation of a suspension of an insoluble basic aluminum sulfate in an acidic silica sol.

    Abstract translation: 包含二氧化硅 - 氧化铝载体或载体材料上的VIB族和VIII族金属或金属氧化物的催化复合材料。 特别可用于石油烃馏分的加氢处理或加氢精制的催化复合物是由于使用通过在酸性硅溶胶中凝胶化不溶性碱式硫酸铝的悬浮液形成的二氧化硅 - 氧化铝载体或载体材料。

    Method of preparing spheroidal alumina particles
    6.
    发明授权
    Method of preparing spheroidal alumina particles 失效
    制备球状氧化铝颗粒的方法

    公开(公告)号:US4250058A

    公开(公告)日:1981-02-10

    申请号:US39975

    申请日:1979-05-17

    Inventor: Edward Michalko

    CPC classification number: B01J21/04 B01J2/08

    Abstract: A method of preparing spheroidal alumina particles of improved physical stability is disclosed. Alumina hydrogel particles prepared by the oil-drop method are aged in the forming oil at atmospheric pressure conditions and at a temperature of from about 95.degree. to 105.degree. C. until the hydrogel spheres achieve a pH in excess of 6 to about 7.5. The forming oil is thereafter displaced with an ammonium salt-buffered aqueous ammoniacal solution, and the hydrogel spheres aged therein for a brief period. After further aging in an aqueous ammoniacal solution in accordance with prior art practice, the spheres are water-washed, dried and calcined.

    Abstract translation: 公开了一种制备具有改善的物理稳定性的球状氧化铝颗粒的方法。 通过油滴法制备的氧化铝水凝胶颗粒在大气压条件下和约95℃至105℃的温度下在成型油中老化直到水凝胶球达到超过6至约7.5的pH。 然后用铵盐缓冲的氨水溶液置换成型油,并将水凝胶球在其中老化一段时间。 在根据现有技术实践的氨水溶液中进一步老化后,将球体进行水洗,干燥和煅烧。

    Transalkylation of alkylaromatic hydrocarbons
    7.
    发明授权
    Transalkylation of alkylaromatic hydrocarbons 失效
    烷基芳烃的烷基转移

    公开(公告)号:US4083886A

    公开(公告)日:1978-04-11

    申请号:US763483

    申请日:1977-01-28

    Inventor: Edward Michalko

    CPC classification number: B01J29/18 C07C6/123

    Abstract: A process for the transalkylation of alkylaromatic hydrocarbons is disclosed. Transalkylation of alkylaromatic hydrocarbons, such as toluene, is effected at transalkylation conditions in contact with a catalytic composite characterized by a method of preparation whereby a zeolite of the mordenite crystal structure with a sodium content of less than about 5 wt. % as Na.sub.2 O is subjected to an aqueous ammoniacal treatment at a pH of at least about 9.5 and calcined in intimate admixture with a refractory inorganic oxide to form a catalytic composite therewith.

    Abstract translation: 公开了烷基芳烃的烷基转移方法。 烷基芳族烃如甲苯的烷基转移在与催化复合物接触的烷基转移条件下进行,其特征在于制备方法,其中钠含量小于约5wt。%的丝光沸石晶体结构的沸石。 %,因为Na 2 O在至少约9.5的pH下进行氨水处理,并与耐火无机氧化物充分混合煅烧以形成催化复合物。

    Method of depositing a catalytically active metallic component on a
carrier material
    8.
    发明授权
    Method of depositing a catalytically active metallic component on a carrier material 失效
    在载体材料上沉积催化活性金属组分的方法

    公开(公告)号:US3972829A

    公开(公告)日:1976-08-03

    申请号:US521978

    申请日:1974-11-07

    Inventor: Edward Michalko

    CPC classification number: B01J23/58 B01J37/0203

    Abstract: A method is disclosed for effecting a uniform distribution of catalytically active metallic component over substantially all of the available surface area of a carrier material in a crystallite size of less than about 25 Angstroms. The innovative feature is in the use of a sulfur-containing organic acid as a complexing agent for the catalytically active metallic component in an impregnating solution adjusted to a pH of from about 5 to about 7.

    Abstract translation: 公开了一种方法,用于在小于约25埃的微晶尺寸的载体材料的基本上所有可用的表面积上实现催化活性金属组分的均匀分布。 创新的特征是使用含硫有机酸作为调节至约5至约7的pH的浸渍溶液中的催化活性金属组分的络合剂。

    Manufacture of high surface area spheroidal alumina particles having a
high average bulk density
    9.
    发明授权
    Manufacture of high surface area spheroidal alumina particles having a high average bulk density 失效
    具有高平均堆积密度的高表面积球状氧化铝颗粒的制造

    公开(公告)号:US4216122A

    公开(公告)日:1980-08-05

    申请号:US960140

    申请日:1978-11-13

    Inventor: Edward Michalko

    Abstract: A method of preparing high surface area-high average bulk density spheroidal alumina particles is disclosed. Spheroidal alumina hydrogel particles prepared by the oil drop method are aged in an aqueous ammoniacal solution containing from about 4 to about 20 wt. % ammonium salt, and thereafter water-washed, dried and calcined to yield high surface area spheroidal alumina particles having an average bulk density of from about 0.6 to about 0.8 grams per cubic centimeter.

    Abstract translation: 公开了一种制备高表面积 - 高平均体积密度球形氧化铝颗粒的方法。 通过油滴法制备的球状氧化铝水凝胶颗粒在含有约4至约20wt。 %铵盐,然后水洗,干燥和煅烧,得到平均堆积密度为约0.6至约0.8克/立方厘米的高表面积球形氧化铝颗粒。

    Method for producing an alumina sol
    10.
    发明授权
    Method for producing an alumina sol 失效
    氧化铝溶胶的制造方法

    公开(公告)号:US4028216A

    公开(公告)日:1977-06-07

    申请号:US582524

    申请日:1975-05-30

    Inventor: Edward Michalko

    CPC classification number: B01J13/0047 B01J37/031 C01F7/02 C01F7/428

    Abstract: A stoichiometric amount of aluminum is commingled with hydrochloric acid in an aqueous media to provide a final reaction mixture containing from about 10 to about 14 wt. % aluminum in from about a 1:1 to about 1.5:1 ratio with the chloride anion content thereof. The mixture is treated in the presence of a soluble salt of cobalt or nickel at conditions effecting substantially complete digestion of the aluminum.

    Abstract translation: 化学计量的铝在水性介质中与盐酸混合以提供含有约10至约14重量%的最终反应混合物。 %铝与其氯化物阴离子含量的比例为约1:1至约1.5:1。 该混合物在钴或镍的可溶性盐的存在下处理,其条件是实质上完全消化铝。

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