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    QUANTUM-COMPUTING SECURE DIGITAL AND PHYSICAL PROOF OF WORK
    22.
    发明公开
    QUANTUM-COMPUTING SECURE DIGITAL AND PHYSICAL PROOF OF WORK 审中-公开

    公开(公告)号：EP4221067A1

    公开(公告)日：2023-08-02

    申请号：EP22154318.4

    申请日：2022-01-31

    Applicant: BASF SE

    Inventor： SEIDEMANN, Lothar ,  JELICH, Holger Kai Peter

    IPC: H04L9/00

    Abstract: A computer-implemented method for proof-of-work for generating and validating a block of a blockchain using at least one printing device is disclosed. The printing device is configured for generating at least one digital image depending on a printer control setting. The method comprises the following steps:
    i) (110) determining a plurality of number strings by solving at least one cryptographic puzzle;
    ii) (118) selecting one of the number strings of the determined plurality of number strings as mining printer control setting;
    iii) (120) printing at least one initial digital image (116) comprising a plurality of colored pixels by using the printing device with the selected mining printer control setting (112) and scanning the printed image by using at least one scanning device, thereby generating a mining digital image (122) having a plurality of colored pixels different from the initial digital image (116);
    iv) (124) comparing the colored pixels of the mining digital image (122) and a task digital image (114) by using at least one processing device, wherein the task digital image (114) comprises a plurality of colored pixels being different from the initial digital image (116).
    The method comprises repeating steps ii) (118) to iv) (124) until the colored pixels of the mining digital image (122) and the task digital image (114) are found to be identical. In each case in step ii) (118) a different mining printer control setting (112) is selected. The mining printer control setting (112) for which the mining digital image (122) and the task digital image (114) are found to be identical, at least within tolerances, is used as the proof-of-work for generating and validating the block of the blockchain.

    VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION VON CHLORWASSERSTOFF IN EINEM WIRBELSCHICHTREAKTOR
    24.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION VON CHLORWASSERSTOFF IN EINEM WIRBELSCHICHTREAKTOR 审中-公开
    用于生产氯氯化氢气相氧化流化床反应器

    公开(公告)号：EP2462054A1

    公开(公告)日：2012-06-13

    申请号：EP10737322.7

    申请日：2010-07-28

    Applicant: BASF SE

    Inventor： KARCHES, Martin ,  BACHMANN, Kati ,  SESING, Martin ,  SEIDEMANN, Lothar ,  PILZ, Michael

    IPC: C01B7/04

    CPC classification number: C01B7/04 ,  B01J8/0055 ,  B01J8/18

    Abstract: The invention relates to a method for producing chlorine by gas phase oxidation of hydrogen chloride on a heterogeneous, particulate catalyzer in a fluidized-bed reactor, obtaining a product gas mixture that is freed of any carried catalyzer particles in cyclones (1) disposed in the upper region of the fluidized-bed reactor, comprising a cylindrical upper part (2) having a tangential or spiral inlet (3) for the product gas mixture and narrowing at the lower end thereof via a conical part (4) into a cyclone downpipe (5), and a central immersion pipe (6) in the upper region of the cyclone (1) for diverting the product gas mixture freed of the carried catalyzer particles, characterized in that – one to seven cascades of two to five cyclones each connected in series are used, wherein the cyclones (1) of each cascade, except for the cyclone (1) first permeated, which is designed that approximately 90 to 99% by weight of the carried catalyst particles are precipitated, each comprise a trickle valve (7) at the lower end of the cyclone downpipe (5) comprising an angled pipe terminator (8) and a loose flap valve (9) suspended at an angle α to the vertical, wherein the angle α and the weight of the flap valve (9) are designed so that the torque of the flap valve (9) based on the diameter of the outlet opening out of the angled pipe terminator (8) is in the range of 2 to 300 N/m
    2 .

    MECHANISCH STABILER KATALYSATOR AUF BASIS VON ALPHA-ALUMINIUMOXID
    29.
    发明公开
    MECHANISCH STABILER KATALYSATOR AUF BASIS VON ALPHA-ALUMINIUMOXID 审中-公开
    机械稳定的催化剂基于α-氧化铝

    公开(公告)号：EP1919611A1

    公开(公告)日：2008-05-14

    申请号：EP06792946.3

    申请日：2006-08-22

    Applicant: BASF SE

    Inventor： SCHUBERT, Olga ,  SESING, Martin ,  SEIDEMANN, Lothar ,  KARCHES, Martin ,  GRASSLER, Thomas ,  SOHN, Martin

    IPC: B01J21/04 ,  B01J23/46 ,  C01B7/04

    CPC classification number: C01B7/04 ,  B01J21/04 ,  B01J23/462 ,  B01J23/52 ,  B01J23/72 ,  B01J23/8926

    Abstract: Disclosed is a catalyst for gas phase reactions, which is provided with great mechanical stability and comprises one or several active metals on a carrier containing alumina as a carrier material. Said catalyst is characterized in that the alumina moiety of the carrier is composed substantially of alpha-alumina. Ruthenium, copper, and/or gold is/are the preferred active metal/s used. Particularly preferred inventive catalysts contain a) 0.001 to 10 percent by weight of ruthenium, copper, and/or gold, b) 0 to 5 percent by weight of one or several alkaline earth metals, c) 0 to 5 percent by weight of one or several alkali metals, d) 0 to 10 percent by weight of one or several rare earth metals, e) 0 to 10 percent by weight of one or several other metals selected among the group comprising palladium, platinum, osmium, iridium, silver, and rhenium, the percentages being in relation to the total weight of the catalyst, on the carrier made of alpha Al2O3. The disclosed catalysts are preferably used for the oxidation of hydrogen chloride (Deacon reaction).

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