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    Rhodium recovery process
    322.
    发明授权
    Rhodium recovery process 失效
    铑恢复过程

    公开(公告)号：US4363765A

    公开(公告)日：1982-12-14

    申请号：US250614

    申请日：1981-04-03

    Applicant: Rocco A. Fiato ,  Jose' L. Vidal

    Inventor： Rocco A. Fiato ,  Jose' L. Vidal

    IPC: B01J31/40 ,  C01G55/00 ,  C07C45/50 ,  C07F15/00

    CPC classification number: B01J31/4046 ,  B01J31/20 ,  B01J31/2234 ,  C01G55/007 ,  C07C45/50 ,  C07F15/008 ,  B01J2231/641 ,  B01J2231/648 ,  B01J2531/822 ,  B01J27/045 ,  B01J31/0201 ,  B01J31/04 ,  B01J31/1608 ,  B01J31/18 ,  B01J31/2204 ,  B01J31/24 ,  B01J31/26 ,  Y02P20/584

    Abstract: A particular process is provided for the recovery of rhodium values from liquid compositions. The process comprises contacting a solubilized rhodium complex with water, a crown ether and an alkaline cesium salt in the liquid phase such that a solid comprising rhodium is formed. The process is applied with particular advantage to the recovery of solubilized rhodium values derived from processes for the production of polyhydric alcohols such as ethylene glycol, and monohydric alcohols such as methanol, by the reaction of carbon monoxide and hydrogen in the presence of rhodium carbonyl complex catalysts in a homogeneous liquid medium. The invention also concerns cesium/crown ether salts of anionic rhodium complexes.

    Abstract translation: 提供了从液体组合物中回收铑值的具体方法。 该方法包括使溶解的铑配合物与水，冠醚和碱铯盐在液相中接触，使得形成包含铑的固体。 该方法特别有利于通过一氧化碳和氢在铑羰基络合物的存在下，通过一氧化碳和氢气的反应回收衍生自多元醇如乙二醇和一元醇如甲醇的溶解的铑值 催化剂在均匀的液体介质中。 本发明还涉及阴离子铑络合物的铯/冠醚盐。

    Recovery of molybdenum from spent catalyst solutions from hydroperoxide epoxidations
    323.
    发明授权
    Recovery of molybdenum from spent catalyst solutions from hydroperoxide epoxidations 失效
    从废催化剂溶液中回收来自氢过氧化物环氧化物的钼

    公开(公告)号：US4317801A

    公开(公告)日：1982-03-02

    申请号：US226968

    申请日：1981-01-21

    Applicant: Paul D. Taylor ,  Michael T. Mocella

    Inventor： Paul D. Taylor ,  Michael T. Mocella

    IPC: B01J31/40 ,  C01G39/00 ,  C01G39/06 ,  C22B7/00 ,  C22B34/34

    CPC classification number: B01J31/0201 ,  B01J31/34 ,  B01J31/4015 ,  C01G39/06 ,  C22B34/34 ,  C22B34/345 ,  C22B7/009 ,  B01J2231/72 ,  B01J27/04 ,  B01J31/26 ,  Y02P10/214 ,  Y02P10/23 ,  Y02P10/234 ,  Y02P20/584

    Abstract: In the process of recovering molybdenum from a spent catalyst solution obtained from a crude reaction product of a molybdenum catalyzed epoxidation of an olefin with an organic hydroperoxide from which crude reaction product epoxide and an alcohol corresponding to the hydroperoxide is removed, the improvement comprises removing and recovering dissolved molybdenum as a high molybdenum content solid by subjecting the spent catalyst solution to a liquid-to-liquid extraction with an aqueous extract to form a two phase system, separating the molybdenum-rich aqueous extract and precipitating therefrom a high molybdenum content solid by heating the aqueous extract in the presence of hydrogen sulfide or a water soluble sulfide salt.

    Abstract translation: 在从催化烯烃的钼催化环氧化的粗反应产物和有机氢过氧化物中回收钼的过程中，粗制反应产物环氧化物和对应于氢过氧化物的醇被除去，改进包括除去和 通过将废催化剂溶液用水提取物进行液 - 液萃取来回收溶解的钼作为高钼含量的固体，以形成两相体系，分离富含钼的水提取物并从中沉淀出高含钼固体，通过 在硫化氢或水溶性硫化物存在下加热水提取物。

    Rhodium recovery from hydroformylation still heel with triaryl phosphite ligand
    325.
    发明授权
    Rhodium recovery from hydroformylation still heel with triaryl phosphite ligand 失效
    来自加氢甲酰基化的铑回收仍然与三芳基亚磷酸酯配体反应

    公开(公告)号：US4135911A

    公开(公告)日：1979-01-23

    申请号：US905200

    申请日：1978-05-12

    Applicant: Jean L. Balmat

    Inventor： Jean L. Balmat

    IPC: C22B11/00 ,  B01J31/40 ,  C01G55/00 ,  C07C45/50 ,  C22B3/32 ,  C22B3/38 ,  C22B7/00 ,  C22B13/04

    CPC classification number: B01J31/4046 ,  B01J31/185 ,  B01J31/20 ,  C01G55/001 ,  C22B11/04 ,  C22B3/0024 ,  C22B3/0062 ,  C22B3/0068 ,  B01J2231/321 ,  B01J23/464 ,  B01J2531/822 ,  B01J31/0201 ,  Y02P10/234 ,  Y02P20/584

    Abstract: A process for recovering rhodium present in a still heel from the hydroformylation of an unsaturated hydrocarbon wherein rhodium and a triaryl phosphite ligand were used by a process comprising(a) pretreating the still heel with a compatible organic solvent or a mixture thereof, at least 5 ml of water per 100 g of still heel, oxygen gas or a precursor thereof and sufficient base to produce a pH of 2 to 7 in the reaction mixture after rhodium precipitation;(b) heating to a temperature of from 0.degree. to 80.degree. C to oxidize the triaryl phosphite ligand to the corresponding phosphate compound;(c) heating the mixture from (b) for from about 15 minutes to about 120 minutes at about 115.degree. C to about 175.degree. C to precipitate zero valent rhodium; and optionally purifying the precipitated rhodium from (c) by(d) separating the rhodium precipitate;(e) washing the rhodium precipitate with a solvent-acid solution at a pH of 3 to 4;(f) treating the rhodium precipitate with an alkaline reducing solution to reduce the trivalent rhodium impurity to zero valent rhodium;(g) quenching the rhodium with glacial acetic acid;(h) separating the rhodium;(i) washing the rhodium with an acid solution at a pH of 3 to 4;(j) drying the rhodium in an inert atmosphere at from 250.degree. to 400.degree. C; and(k) oxidizing the rhodium at a temperature of from 300.degree. to 900.degree. C to convert the rhodium to Rh.sub.2 O.sub.3.

    Abstract translation: {PG，1一种用于从不饱和烃的加氢甲酰化中回收存在于后端中的铑的方法，其中铑和亚磷酸三芳基酯配体通过包括{PS {P0（A）PRETREATING THE STILL HEEL WITH A COMPATIBLE ORGANIC SOLVENT 或其混合物，至少5毫升水，每100克静态橡胶，氧气或其前体和足够的碱生产铑沉淀后反应混合物中的2至7的PH; {P0（B）加热至0 {20 {0至80 {20 {0 C氧化亚磷酸三芳基酯配体至相应的磷酸酯化合物的温度] {P0（C）从（B）加热混合物约15分钟至约120分钟约115 {20 {0℃至约175℃{20℃0℃以沉淀零价铑; 并且可选地通过{P0（D）分离硫酸铅沉淀从（c）中纯化沉淀的铑; {P0（E）用PH为3〜4的溶剂酸溶液洗涤硫酸钠; {pg，2 {P0（F））使用碱性还原溶液处理硫酸钠，以减少对零极环境的反应性; {P0（G）用GLACIAL ACE酸淬灭RHODIUM; {P0（H）分离铑; {P0（I）洗涤酸度为3至4的PH的溶液; {P0（J）从250 {20 {0到400 {20 {0℃; 20℃）中干燥大气中的氢氧化钠。 和{P0（K））在温度下从300 {20 {0至900 {20 {0℃）中将铑氧化以将铑转化为Rh {hd 2 {10 {HD 3 {

    Molybdenum-containing catalyst solutions and method of making and using same
    326.
    发明授权
    Molybdenum-containing catalyst solutions and method of making and using same 失效
    包含含钼催化剂的溶液及其制备和使用方法

    公开(公告)号：US3573226A

    公开(公告)日：1971-03-30

    申请号：US3573226D

    申请日：1969-04-02

    Applicant: ATLANTIC RICHFIELD CO

    Inventor： SORGENTI HAROLD A

    IPC: B01J31/34 ,  C07D301/19 ,  C07D1/08

    CPC classification number: C07D301/19 ,  B01J23/28 ,  B01J31/0201 ,  B01J31/34 ,  B01J2231/72

    Abstract: METHOD FOR THE PREPARATION OF MOLYBDENUM-CONTAINING EPOXIDATION CATALYST SOLUTIONS BY HEATING MOLYBDENUM POWDER WITH A STREAM CONTAINING UNREACTED TERTIARY BUTYL HYDROPEROXIDE USED IN THE EPOXIDATION PROCESS AS THE OXIDIZING AGENT AND POLYHYDRIC COMPOUNDS OF FROM ABOUT 200 TO 300 MOLECULAR WEIGHT AND HAVING FROM 4 TO 6 HYDROXYL GROUPS PER MOLECULE, THE POLYHYDRIC COMPOUND BEING FORMED AS A BY-PRODUCT IN THE EPOXIDATION PROCESS, THE CATALYST SOLUTION PRODUCED BY SUCH METHOD AND OLEFIN EPOXIDATION PROCESSES UTILIZING SUCH CATALYST SOLUTIONS AS THE CATALYST THEREFORE.

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