Preparation of catalysts of predetermined pore size distribution and
pore volume
    3.
    发明授权
    Preparation of catalysts of predetermined pore size distribution and pore volume 失效
    预制孔径分布和孔体积的催化剂的制备

    公开(公告)号:US4145316A

    公开(公告)日:1979-03-20

    申请号:US864322

    申请日:1977-12-27

    申请人: Harry E. Robson

    发明人: Harry E. Robson

    CPC分类号: B01J21/04 B01J37/0018

    摘要: A process for the treatment of a hydrogel by contact thereof with an aqueous solution containing from about 0.1 to 20 percent, by weight, of a water soluble mono- or polycarboxylic acid, preferably one which contains from 1 to about 12 carbon atoms, and more preferably from about 2 to about 8 carbon atoms. Suitably, the acid treatment can be incorporated with a wash step which removes the sulfates and other soluble salts, as well as the bayerite, or the acid treatment can be employed subsequent to a wash step, prior to, or simultaneously with a pore volume extending step. The hydrogel can thus be subsequently contacted and separately treated with the acid-containing aqueous solution to remove the bayerite, or the acid can be dissolved in a solution which also contains certain critical amounts of specified type of water soluble polymer in a pore volume extending step.

    Preparation of catalysts of predetermined pore size distribution and
pore volume
    4.
    发明授权
    Preparation of catalysts of predetermined pore size distribution and pore volume 失效
    制备预定孔径分布和孔体积的催化剂

    公开(公告)号:US4016107A

    公开(公告)日:1977-04-05

    申请号:US646491

    申请日:1976-01-05

    摘要: A process for the formation of a catalyst of predetermined pore size distribution and pore volume from an alumina hydrogel formed and obtained by precipitation from a solution containing a hydrous form of alumina in 1-5 wt. % concentration and an anion that is soluble in an alkaline solution and forms an aluminum salt, at pH 8-12, and temperature ranging about 15.degree. F.-120.degree. F., and then extended by contact with a solution of a water-soluble polymer containing 2 to about 24 monomer units from the group consisting of (a) polyethylene glycols, (b) polypropylene glycols, and (c) polyethylene amines sufficient to absorb the polymer and displace water from the pores until the weight ratio of polymer:alumina ranges about 0.5:1 to about 4:1. A metal hydrogenation component, or components, suitably a Group VI-B or Group VIII metal, or both, can be added during the polymer extending step, if desired, by adding a soluble compound, or salt of the desired metal, or metals, to the polymer containing solution. In either event, the polymer is removed by solvent extraction, dried and calcined to form gamma alumina.

    摘要翻译: 一种由1-5重量份含有水合氧化铝的溶液沉淀形成并获得的氧化铝水凝胶形成预定孔径分布和孔体积的催化剂的方法。 %浓度的阴离子和可溶于碱性溶液中并形成铝盐的阴离子,pH为8-12,温度约为15°-120°F,然后通过与水 - 含有(a)聚乙二醇,(b)聚丙二醇和(c)足以吸收聚合物并从孔中移出水直到聚合物的重量比的聚乙烯胺的2至约24个单体单元的可溶性聚合物: 氧化铝的范围为约0.5:1至约4:1。 如果需要,可以在聚合物延伸步骤期间通过加入可溶性化合物或所需金属或金属的盐,加入金属氢化组分或组分,合适地为VI-B族或VIII族金属,或两者, 到含聚合物的溶液。 在任一情况下,通过溶剂萃取除去聚合物,干燥并煅烧形成γ氧化铝。

    Synthetic halloysites
    5.
    发明授权
    Synthetic halloysites 失效
    合成多水高岭土

    公开(公告)号:US4150099A

    公开(公告)日:1979-04-17

    申请号:US525205

    申请日:1974-11-19

    申请人: Harry E. Robson

    发明人: Harry E. Robson

    摘要: A synthetic halloysite which is substantially iron-free is obtained by crystallization from a reaction mixture containing hydrous alumina gel and aqueous silica sol. Metal substituted synthetic halloysites can be prepared by coprecipitation of metal hydroxides with the alumina gel.

    摘要翻译: 通过从含有水合氧化铝凝胶和含水硅溶胶的反应混合物中结晶获得基本上无铁的合成多水高岭土。 金属取代的合成多水高岭土可以通过用氧化铝凝胶共沉淀金属氢氧化物来制备。

    Synthetic halloysites as hydrocarbon conversion catalysts
    6.
    发明授权
    Synthetic halloysites as hydrocarbon conversion catalysts 失效
    合成多水高岭土作为烃转化催化剂

    公开(公告)号:US4098676A

    公开(公告)日:1978-07-04

    申请号:US740868

    申请日:1976-11-11

    申请人: Harry E. Robson

    发明人: Harry E. Robson

    摘要: A synthetic halloysite which is substantially iron-free is obtained by crystallization from a reaction mixture containing hydrous alumina gel and aqueous silica sol. Metal substituted synthetic halloysites can be prepared by coprecipitation of metal hydroxides with the alumina gel. Hydrocarbons are converted over cracking catalysts derived from these halloysites.

    摘要翻译: 通过从含有水合氧化铝凝胶和含水硅溶胶的反应混合物中结晶获得基本上无铁的合成多水高岭土。 金属取代的合成多水高岭土可以通过用氧化铝凝胶共沉淀金属氢氧化物来制备。 碳氢化合物转化为衍生自这些多水高岭土的裂化催化剂。

    Method for the preparation of zeolites using a low water low alkali
metal content gel
    7.
    发明授权
    Method for the preparation of zeolites using a low water low alkali metal content gel 失效
    使用低水低碱金属含量凝胶制备沸石的方法

    公开(公告)号:US4560542A

    公开(公告)日:1985-12-24

    申请号:US679136

    申请日:1984-12-06

    申请人: Harry E. Robson

    发明人: Harry E. Robson

    CPC分类号: C01B33/2876 Y10S423/27

    摘要: An improved method is provided for the preparation of organic cation-containing zeolites and their thermal decomposition products, by adding the organic templating agent to a preformed aluminosilicate gel containing less than a specified amount of water and a low alkali metal content, and maintaining the mixture at crystallization conditions until the crystalline aluminosilicate zeolite is formed.

    摘要翻译: 提供了一种改进的方法来制备含有机阳离子的沸石及其热分解产物,通过将有机模板剂加入到含有少于一定量的水和低碱金属含量的预制铝硅酸盐凝胶中,并保持混合物 直到结晶硅铝酸盐沸石形成。

    Hydrocracking process with rejuvenated catalyst
    8.
    发明授权
    Hydrocracking process with rejuvenated catalyst 失效
    加氢裂化过程与复兴催化剂

    公开(公告)号:US4055482A

    公开(公告)日:1977-10-25

    申请号:US592120

    申请日:1975-07-01

    申请人: Harry E. Robson

    发明人: Harry E. Robson

    CPC分类号: B01J29/90 C10G47/16

    摘要: A process for rejuvenating crystalline aluminosilicayte zeolite-containing catalysts which have become at least partially deactivated through use in a hydrocracking process. Used, deactivated catalysts are treated with ion-containing solutions, particularly those containing hydrogen ions and hydrogen precursors, at a pH of from 3.5 to about 9, such that the alkali metal content of the catalyst is substantially reduced to thereby rejuvenate the catalyst to at least its original fresh activity in a hydrocracking process.

    摘要翻译: 一种使结晶含铝硅酸盐沸石的催化剂再生的方法,其通过在加氢裂化方法中使用而至少部分失活。 使用的失活的催化剂在pH为3.5至约9的条件下用含离子的溶液,特别是含有氢离子和氢气前体的溶液进行处理,使得催化剂的碱金属含量基本上降低,从而将催化剂恢复至 至少在加氢裂化过程中其原始的新鲜活性。

    Preparation of catalysts of predetermined pore size distribution and
pore volume
    9.
    发明授权
    Preparation of catalysts of predetermined pore size distribution and pore volume 失效
    制备预定孔径分布和孔体积的催化剂

    公开(公告)号:US4016108A

    公开(公告)日:1977-04-05

    申请号:US646492

    申请日:1976-01-05

    申请人: Harry E. Robson

    发明人: Harry E. Robson

    摘要: A process for the formation of a catalyst of predetermined pore size distribution and pore volume of precipitation and formation of an alumina hydrogel from a solution which contains a hydrous form of alumina, in 1-5 wt. % concentration, and an anion that is soluble in an alkaline solution and forms an aluminum salt, at pH ranging about 8-12, and at temperature ranging about 15.degree. F.-120.degree. F. The alumina hydrogel is separated from the solution and washed in a pore volume extending step by contact with a solution of a water soluble polymer containing from about 2 to about 24 monomer units from the group consisting of (a) polyethylene glycols, (b) polypropylene glycols, and (c) polyethylene amines sufficient to absorb the polymer into the pores of the alumina hydrogel and displace water from the pores until the weight ratio of polymer:alumina within the hydrogel ranges from about 0.5:1 to about 4:1. Metal hydrogenation components, suitably a Group VI-B or Group VIII metal, or both, can be added during the hydrogel formation step (i.e. by cogellation), during the pore volume extending step, or after the alumina is formed, dried and calcined.

    摘要翻译: 形成预定孔径分布和孔体积的催化剂的方法,其形成由含1-5重量份的含水形式的氧化铝的溶液形成氧化铝水凝胶。 %浓度,以及可溶于碱性溶液并形成铝盐的阴离子,pH约为8-12,温度约为15°-120°F。氧化铝水凝胶与溶液分离, 通过与包含约2至约24个单体单元的水溶性聚合物的溶液接触,从由(a)聚乙二醇,(b)聚丙二醇和(c)聚乙烯胺充分地 以将聚合物吸收到氧化铝水凝胶的孔中并从孔中移出水,直到水凝胶内的聚合物:氧化铝的重量比为约0.5:1至约4:1。 在孔体积延伸步骤期间或在氧化铝形成,干燥和煅烧之后,可以在水凝胶形成步骤(即通过共聚)期间加入金属氢化组分,合适地为VI-B族或VIII族金属或两者。