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    Fluidized catalyst regeneration by oxidation in a dense phase bed and a dilute phase transport riser
    1.
    发明授权
    Fluidized catalyst regeneration by oxidation in a dense phase bed and a dilute phase transport riser 失效
    流化床催化剂通过氧化相渗透和相位运输上升而再生

    公开(公告)号：US3844973A

    公开(公告)日：1974-10-29

    申请号：US25804172

    申请日：1972-05-30

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： STINE L ,  CONNER A

    IPC: B01J29/90 ,  B01J8/26 ,  B01J38/20 ,  B01J38/34 ,  C10G11/18 ,  B01J11/70 ,  B01J11/68

    CPC classification number: C10G11/182 ,  B01J8/26 ,  Y02A50/2327

    Abstract: A process in which spent catalyst is regenerated with or without the complete combustion of CO in a regeneration zone comprising a first dense bed, a dilute phase transport riser and a second dense bed. Higher velocities and higher O2 concentrations employed within the regeneration zone result in shorter catalyst and gas residence time, reduced catalyst inventory, lower catalyst makeup rate, improved regeneration, and improved catalyst stability. The substantially complete combustion of CO eliminates CO pollution of the atmosphere without the need for a CO boiler and decreases feed preheat requirements.

    Abstract translation: 一种在包含第一致密床，稀相运输提升管和第二致密床的再生区中有或没有CO完全燃烧而使废催化剂再生的方法。 在再生区域内使用的较高的速度和较高的O 2浓度导致较短的催化剂和气体停留时间，减少的催化剂存量，较低的催化剂补充率，改进的再生和改进的催化剂稳定性。 CO的基本完全燃烧消除了大气中的CO污染，而不需要CO锅炉并降低进料预热要求。

    Regeneration of basic alumina used as a catalyst in dehydrohalogenation of beta-haloalkylphosphonate esters
    2.
    发明授权
    Regeneration of basic alumina used as a catalyst in dehydrohalogenation of beta-haloalkylphosphonate esters 失效
    作为催化剂用于脱氢羟基磷酸酯酯脱氢酶的基础铝的再生

    公开(公告)号：US3725300A

    公开(公告)日：1973-04-03

    申请号：US3725300D

    申请日：1970-10-07

    Applicant: STAUFFER CHEMICAL CO

    Inventor： STAMM W

    IPC: C07F9/40 ,  B01J11/70 ,  B01J11/02

    CPC classification number: C07F9/4015 ,  Y02P20/584

    Abstract: A process is provided for the preparation of Alpha , Beta olefinically unsaturated alkyl phosphonate esters by the dehydrohalogenation of the corresponding Beta -haloalkyl phosphonate esters comprising contacting the haloalkyl phosphonate with basic alumina. A method is also provided for the regeneration of spent alumina catalyst by heating to a temperature in excess of 200* C.

    Abstract translation: 提供了通过相应的β-卤代烷基膦酸酯的脱卤化氢制备α，β-烯属不饱和烷基膦酸酯的方法，包括使卤代烷基膦酸酯与碱性氧化铝接触。 还提供了一种通过加热到超过200℃的温度来再生废氧化铝催化剂的方法。

    Process for the preparation of bis(beta-chloroethyl)vinyl phosphonate and related compounds
    3.
    发明授权
    Process for the preparation of bis(beta-chloroethyl)vinyl phosphonate and related compounds 失效
    制备BIS（BET-CHROROETHYL）乙酸卟吩及其相关化合物的方法

    公开(公告)号：US3576924A

    公开(公告)日：1971-04-27

    申请号：US3576924D

    申请日：1968-01-11

    Applicant: STAUFFER CHEMICAL CO

    Inventor： STAMM WALTER

    IPC: C07F9/40 ,  B01J11/70 ,  C07F9/38

    CPC classification number: C07F9/4015

    Abstract: A PROCESS IS PROVIDED FOR THE PREPARATION OF A,B-OLEFINICALLY UNSATURATED ALKYL PHOSPHONATE ESTERS BY THE DEHYDROHALOGENATION OF THE CORRESPONDING B-HALOALKYL PHOSPHONATE ESTERS COMPRISING CONTACTING THE HALOALKYL PHOSPHONATE WITH BASIC ALUMINA. A METHOD IS ALSO PROVIDED FOR THE REGENERATION OF SPENT ALUMINA CATALYST BY HEATING TO A TEMPERATURE IN EXCESS OF 200*C. THESE PHOSPHONATES ARE USEFUL AS COPOLYMERIZING AGENTS, TERMINATING AGENTS, AND CROSS-LINKING AGENTS IN THOSE APPLICATIONS WHERE A DEGREE OF FLAME RETARDANCE IS OF SPECIAL VALUE IN POLYMERIC COMPOSITIONS.

    Regeneration of molecular sieves having sulfur compounds adsorbed thereon
    5.
    发明授权
    Regeneration of molecular sieves having sulfur compounds adsorbed thereon 失效
    具有硫化物的分子筛的再生

    公开(公告)号：US3725299A

    公开(公告)日：1973-04-03

    申请号：US3725299D

    申请日：1970-08-06

    Applicant: UNION CARBIDE CORP

    Inventor： TURNOCK P ,  BANCROFT W ,  LEE M

    IPC: C10G25/03 ,  C10G25/05 ,  B01J11/70 ,  B01D41/02

    CPC classification number: C10G25/05 ,  C01B33/2807 ,  Y10S502/517

    Abstract: The sweetening of natural gasoline liquid fractions employing molecular sieve type adsorbents to selectively adsorb the sulfur compound impurities is accomplished using a minimum of nonsorbable purge gas for regeneration purposes. The process comprises using a low boiling condensable paraffin to purge the sulfur compounds from the principal adsorption bed, condensing said paraffin, purifying same in the liquid phase by passage through a large pore molecular sieve bed, and thereafter removing the sulfur compounds from the latter bed with a non-sorbable purge gas.

    Abstract translation: 使用分子筛型吸附剂选择性吸附硫化合物杂质的天然汽油液体馏分的增甜是使用最少的不可吸收的净化气体进行再生的目的。 该方法包括使用低沸点可冷凝石蜡从主要吸附床清除硫化合物，冷凝所述石蜡，通过通过大孔分子筛床在液相中纯化，然后从后一个床除去硫化合物 具有不可吸收的吹扫气体。

    Regeneration of spent alumina
    7.
    发明授权
    Regeneration of spent alumina 失效
    活性氧化铝的再生

    公开(公告)号：US3814701A

    公开(公告)日：1974-06-04

    申请号：US27911772

    申请日：1972-08-09

    Applicant: FMC CORP

    Inventor： BROWNING J

    IPC: B01J21/20 ,  B01J38/64 ,  C01B15/023 ,  B01J11/70 ,  B01J11/72

    CPC classification number: C01B15/023 ,  B01J21/20 ,  Y02P20/584

    Abstract: A SPENT ALUMINA THAT HAS BEEN IN CONTACT WITH AN ANTHRAQUINONE WORKING SOLUTION (MADE UP OF AN ANTHRAAQINONE WORKING COMPOUND DISSOLVED IN ONE OR MORE SOLVENTS) AND WHICH HAS BEEN USED TO MAINTAIN THE HYDROGEN PEROXIDE PRODUCTIVITY OF THE SOLUTION IS REGENERATED BY ROASTING THE ALUMINA AT A TEMPERATURE OF ABOUT 300400* C. UNTIL ADSORBED ORGANIC MATTER HAS BEEN REMOVED, CONTACTING THE ROASTED ALUMINA WITH AN AQUEOUS SODIUM HYDROXIDE SOLUTION AND ROASTING THE CAUSTIC-TREATED ALUMINA AT ABOUT 300-400* C. UNTIL THE ALUMINA HAS BEEN REGENERATED.

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