利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

18 records (took 0.012 seconds)

    Process for the production of boehmitic aluminas
    2.
    发明授权
    Process for the production of boehmitic aluminas 失效
    制造BOEHICIC铝的工艺

    公开(公告)号：US5055019A

    公开(公告)日：1991-10-08

    申请号：US360311

    申请日：1989-06-02

    Applicant: Arnold Meyer ,  Klaus Noweck ,  Ansgar Reichenauer

    Inventor： Arnold Meyer ,  Klaus Noweck ,  Ansgar Reichenauer

    IPC: C01F7/36 ,  C01F7/44

    CPC classification number: C01F7/448 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/22 ,  C01P2006/80

    Abstract: A process for the preparation of boehmitic alumina compounds having a purity of, at least, 99.95% Al.sub.2 O.sub.3. The compounds produced according to the invention have a pore radii in the range of 3 to 100 nm. The preparation of such compounds is carried out by, first, obtaining an alumina suspension from a neutral aluminum alkoxide hydrolysis and, then, aging the alumina suspension in an autoclave, preferably, at a steam pressure of 1 to 30 bar, corresponding to a temperature of 100.degree. C. to 235.degree. C., for between 0.5 and 20 hours. The aging step of the invention is preferably carried out with stirring at a peripheral speed of 1 to 6 m/s.

    Abstract translation: 一种制备具有至少99.95％纯度的Al 2 O 3的勃姆石氧化铝化合物的方法。 根据本发明生产的化合物的孔半径在3至100nm的范围内。 这种化合物的制备首先由中性醇铝水解得到氧化铝悬浮液，然后将氧化铝悬浮液在高压釜中老化，优选在1至30巴的蒸汽压力下，对应于温度 在100℃至235℃下进行0.5至20小时。 本发明的老化步骤优选在搅拌下以1〜6m / s的圆周速度进行。

    Process and apparatus for producing aluminium alkoxides
    3.
    发明授权
    Process and apparatus for producing aluminium alkoxides 失效
    制备铝醇盐的方法和设备

    公开(公告)号：US4590289A

    公开(公告)日：1986-05-20

    申请号：US556112

    申请日：1983-11-29

    Applicant: Gert Albert ,  Manfred Kamps ,  Klaus Noweck ,  Ansgar Reichenauer ,  Erich Scherf ,  Udo Ziegler

    Inventor： Gert Albert ,  Manfred Kamps ,  Klaus Noweck ,  Ansgar Reichenauer ,  Erich Scherf ,  Udo Ziegler

    IPC: C07C29/70 ,  B01J8/02 ,  C07C27/00 ,  C07C31/32 ,  C07C67/00 ,  C07F5/06

    CPC classification number: C07C31/32 ,  B01J8/02 ,  B01J2208/0053 ,  B01J2208/00539

    Abstract: The invention is directed to a process for the production of aluminium alcoholates by reacting aluminium in comminuted form with an excess of an aliphatic C.sub.3 to C.sub.10 alcohol in which the aluminium is supplied to the reactor from above and is brought into contact with an aluminium alcoholate/alcohol mixture above a perforated plate or grid tray (screen) in the reactor. The aluminium, or preferably a suspension of alcohol and finely divided aluminium, is supplied to the reactor and fed from above to a bubble bed made of a mixture of aluminium alcoholate and alcohol in the area of the perforated plate, whereby the mixture of aluminium alcoholate and alcohol in the reactor sump or overflowing in part is recycled to the reactor over the bubble bed and optionally, preferably with the aluminium suspension, returned from above to the reactor and in part is isolated. There is also described a reactor suitable for carrying out the process. The reactor has a basket like perforated plate in a tray and inlet lines for maintaining a sufficient amount of liquid in the tray or the bubble bed above the perforated plate or grid tray.

    Abstract translation: 本发明涉及通过使粉碎形式的铝与过量的脂肪族C 3至C 10醇反应生产铝醇化物的方法，其中铝从上方供应至反应器并与铝醇化物/ 酒精混合物在反应器中的多孔板或网格盘（筛网）上方。 将铝或优选为醇和细分散的铝的悬浮液供应到反应器并从上面供入到由多孔板的区域中的醇铝和醇的混合物制成的气泡床，由此将醇铝 并且反应器底池中的醇或部分溢出在气泡床上再循环到反应器中，并且可选地优选地与铝悬浮液一起从上述返回到反应器并且部分地分离。 还描述了适用于进行该方法的反应器。 反应器具有在托盘中的篮状多孔板和用于在多孔板或网格托盘上方的托盘或气泡床中保持足够量的液体的入口管线。

    Method for the production of fatty alcohols
    4.
    发明授权
    Method for the production of fatty alcohols 有权
    生产脂肪醇的方法

    公开(公告)号：US08426654B2

    公开(公告)日：2013-04-23

    申请号：US12867542

    申请日：2009-02-12

    Applicant: Rudolf Boensch ,  Klaus Noweck

    Inventor： Rudolf Boensch ,  Klaus Noweck

    IPC: C07C29/88

    CPC classification number: C07C29/149 ,  C07C51/09 ,  C07C67/08 ,  C07C31/125 ,  C07C69/26 ,  C07C53/126

    Abstract: Method for producing fatty alcohols includes splitting vegetable oils and animal fats under pressure into fatty acids and glycerol in counterflow to steam. The reaction product is physically separated into fatty acids and sweet water containing glycerol. The fatty acids are subjected to a distillation, and the separated fatty acid fraction is mixed together with fatty alcohol at 230 to 270° C. and atmospheric pressure. The wax esters obtained by esterification are hydrogenated to fatty alcohols by adding hydrogen on a fixed-bed catalyst, and the reaction product is separated into fatty alcohols and hydrogen. The wax esters are hydrogenated on a fixed bed of uniformly shaped catalyst bodies produced by extrusion, which consist of the main components copper and copper-chromium oxide and the secondary components zinc, aluminum, iron, silicon and alkaline earth elements, at 180 to 220° C. and 70 to 100 bar(a).

    Abstract translation: 生产脂肪醇的方法包括将植物油和动物脂肪在压力下分解为与蒸汽逆流的脂肪酸和甘油。 将反应产物物理分离成脂肪酸和含甘油的甜水。 对脂肪酸进行蒸馏，将分离的脂肪酸馏分与脂肪醇在230〜270℃和大气压下混合。 通过酯化获得的蜡酯通过在固定床催化剂上加氢来氢化成脂肪醇，将反应产物分离成脂肪醇和氢。 蜡酯在由挤出产生的均匀形状的催化剂体的固定床上氢化，由主要组分铜和铜 - 氧化铬以及次要组分锌，铝，铁，硅和碱土金属组成，在180-220℃ °C和70至100巴（a）。

    Process for the preparation of a catalyst carrier based on aluminosilicates
    10.
    发明授权
    Process for the preparation of a catalyst carrier based on aluminosilicates 失效
    用于制备基于硅铝酸盐的催化剂载体的方法

    公开(公告)号：US5045519A

    公开(公告)日：1991-09-03

    申请号：US407863

    申请日：1989-09-15

    Applicant: Arnold Meyer ,  Klaus Noweck ,  Ansgar Reichenauer ,  Jurgen Schimanski

    Inventor： Arnold Meyer ,  Klaus Noweck ,  Ansgar Reichenauer ,  Jurgen Schimanski

    IPC: B01J37/04 ,  A01B20060101 ,  B01J21/12 ,  B01J21/16 ,  B01J23/10 ,  B01J32/00 ,  C01B33/26

    CPC classification number: B01J21/12 ,  B01J23/10

    Abstract: The invention relates to a process for the preparation of a high-purity, thermally stable catalyst carrier based on aluminosilicate with 0.5 to 50% by weight SiO.sub.2 by mixing an aluminum compound with a silicic acid compound in an aqueous medium, and subsequently drying or calcining the product obtained. The aluminum component used is a C.sub.2 to C.sub.20+ aluminum alkoxide hydrolyzed with water and purified by means of ion exchangers. Simultaneously or subsequently orthosilicic acid purified by means of ion exchangers is added to the aluminum compound.

    Abstract translation: 本发明涉及一种通过在水性介质中混合铝化合物与硅酸化合物，然后干燥或煅烧，制备基于硅铝酸盐的高纯度，热稳定的催化剂载体的方法，该催化剂载体具有0.5至50重量％的SiO 2 获得产品。 使用的铝组分是用水水解并通过离子交换剂纯化的C2至C20 +铝醇盐。 同时或随后通过离子交换剂纯化的正硅酸加入到铝化合物中。

Patent Agency Ranking