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    Process for removing lactams
    611.
    发明授权
    Process for removing lactams 失效
    移除手术的过程

    公开(公告)号：US3852272A

    公开(公告)日：1974-12-03

    申请号：US24964272

    申请日：1972-05-02

    Applicant: STAMICARBON

    Inventor： DE ROOIJ A H

    IPC: C07D223/02 ,  C07D201/16 ,  C07D41/06

    CPC classification number: C07D201/16

    Abstract: A process for recovering lactam from a mixture of lactam and sulphuric acid is disclosed, wherein the mixture of lactam and sulphuric acid, such as that produced in a Beckmann rearrangement is partially neutralized and diluted by the addition of ammonia water. The amount of ammonia added is such that the molar ratio

    Abstract translation: 公开了从内酰胺和硫酸的混合物中回收内酰胺的方法，其中内酯和硫酸的混合物，例如以贝克曼重排产生的那些，被部分中和并通过加入氨水稀释。 加入的氨的数量使得（NH 4）2 SO 4 /（NH 4）2 SO 4 + H 2 SO 4的摩尔比为约0.30:1至0.65:1。 加入的水的量为每摩尔最初存在的三氧化硫约3至约10摩尔水。 通过与水不混溶的有机内酰胺溶剂逆流萃取将内酰胺与部分中和的硫酸分离。

    Catalyst for preparing unsaturated nitriles
    612.
    发明授权
    Catalyst for preparing unsaturated nitriles 失效
    用于制备不饱和硝酸盐的催化剂

    公开(公告)号：US3847831A

    公开(公告)日：1974-11-12

    申请号：US7643870

    申请日：1970-09-29

    Applicant: STAMICARBON

    Inventor： SLOT H ,  GEUS J

    IPC: B01J23/28 ,  B01J23/31 ,  B01J23/34 ,  B01J23/88 ,  B01J23/881 ,  B01J23/887 ,  B01J11/22

    CPC classification number: C07C253/26 ,  B01J23/28 ,  B01J23/31 ,  B01J23/34 ,  B01J23/88 ,  B01J23/881 ,  B01J23/8876 ,  Y02P20/52 ,  C07C255/08

    Abstract: 1. A PROCESS FOR THE PREPARATION OF A CATALYST SYSTEM CONTAINING OXIDES OF BISMUTH, MOLYBDENUM AND IRON WHICH CONSISTS ESSENTIALLY IN CARRYING OUT THE STEPS OF: (A) FORMING AN AQUEOUS ACID SOLUTION CONTAINING IONS OF BISMUTH, AND IONS OF IRON IN AN ATOMIC RATIO NO GREATER THAN 0.4:1 RELATIVE TO SAID BISMUTH IONS, AND AN AQUEOUS ALKALINE SOLUTION, INJECTING ONE OF SAID SOLUTIONS INTO THE OTHER WHILE MAINTAINING THE PH OF THE RESULTING AQUEOUS SOLUTION AT A VIRTUALLY CONSTANT VALUE OF AT LEAST ABOUT 7 WHEREBY A PRECIPITATE OF COMPOUNDS OF SAID IONS IS FORMED, AND SEPARATING SAID PRECIPITATE FROM SAID RESULTING AQUEOUS SOLUTION; (B) FORMING A SUSPENSION OF SAID PRECIPITATE IN AN AQUEOUS MEDIUM, ADJUSTING THE PH OF SAID SUSPENSION TO A VALUE OF BETWEEN ABOUT 2.5 AND 7, AND WHILE HEATING AND AGITATING SAID SUSPENSION, AND MAINTAINING THE PH OF SAID SUSPENSION AT A VALUE OF GREATER THAN ABOUT 2.5, INTRODUCING AN AQUEOUS SOLUTION OF AMMONIUM MOLYBDATE INTO SAID SUSPENSION IN AN AMOUNT IN EXCESS OF A MOLYBDENUM TO BISMUTH ATOMIC RATIO OF ABOUT 1:1 BY AN AMOUNT OF MOLYBDENUM STOICHIOMETRICALLY EQUIVALENT TO THE QUANTITY OF IRON PRECIPITATED IN STEP (A), AND AT A RATE NO GREATER THAN 0.1 GRAM MOLE OF MOO4 PER LITER OF SUSPENSION PER HOUR, THEREAFTER HEATING SAID SUSPENSION AT OR NEAR THE BOILING TEMPERATURE FOR A PERIOD OF AT LEAST 6 HOURS WHEREBY SUBSTANTIALLY ALL OF SAID MOLYBDENUM IS TAKEN UP BY SAID PRECIPITATE.

    Process for preparing 2-(beta-cyanoethyl)-n-substituted acetaldimines
    614.
    发明授权
    Process for preparing 2-(beta-cyanoethyl)-n-substituted acetaldimines 失效
    制备2-（β-氰基乙基）-N-取代的乙酰胺的方法

    公开(公告)号：US3821274A

    公开(公告)日：1974-06-28

    申请号：US22461572

    申请日：1972-02-08

    Applicant: STAMICARBON

    Inventor： BEEKHUIS G ,  KLEIN J

    IPC: C07C121/02

    CPC classification number: C07C255/00

    Abstract: A process for preparing 2-( Beta -cyanoethyl)-N-substituted acetaldimines by the reaction of acrylonitrile and an Nsubstituted acetaldimine is disclosed, wherein the reaction is conducted in the presence of at least one compound which is an alkali metal oxide, an alkaline-earth metal oxide, an alkali metal hydroxide, an alkaline-earth metal hydroxide, an alkali metal salt or an alkaline-earth metal salt derived from an acid having a dissociation constant less than 10 5.

    Process and apparatus for removing liquid from wet or moist particles
    616.
    发明授权
    Process and apparatus for removing liquid from wet or moist particles 失效
    从湿润或水分颗粒中除去液体的方法和装置

    公开(公告)号：US3805401A

    公开(公告)日：1974-04-23

    申请号：US26858372

    申请日：1972-07-03

    Applicant: STAMICARBON

    Inventor： FONTEIN F

    IPC: B04C1/00 ,  B29B13/06 ,  F26B17/10 ,  F26B3/10

    CPC classification number: F26B17/105 ,  B04C1/00 ,  B29B13/065

    Abstract: Process and apparatus for removing liquid from wet or moist thermoplastic particles, wherein the material, which may be in granular or powdery form, is introduced into a gas stream which blows it at a high velocity in a substantially tangential direction against a curved wall provided with apertures. The thermoplastic particles repeatedly impinge on and rebounce from the curved wall and as a result the liquid is flung off. The liquid is carried away by the gas stream through the apertures in the curved wall, the thermoplastic particles are separately collected and discharged at the downstream end of the curved wall.

    Abstract translation: 用于从湿的或湿的热塑性颗粒中除去液体的方法和设备，其中可以是颗粒状或粉末形式的材料被引入气流中，所述气流以大体上切线方向的高速吹向设置有弯曲壁的弯曲壁 孔。 热塑性颗粒从弯曲的壁反复冲击并重新弹起，结果液体被排出。 液体通过气流通过弯曲壁中的孔带走，热塑性颗粒被分开收集并在弯曲壁的下游端排出。

    Process for the preparation of 4-oxocapronitrile
    618.
    发明授权
    Process for the preparation of 4-oxocapronitrile 失效
    4-OXOCAPRONITRILE的制备方法

    公开(公告)号：US3780082A

    公开(公告)日：1973-12-18

    申请号：US3780082D

    申请日：1971-08-05

    Applicant: STAMICARBON

    Inventor： DEUMENS J ,  GROEN S

    IPC: C07C20060101 ,  C07C121/02

    CPC classification number: C07C255/00

    Abstract: SCHIFF BASES DERIVED FROM ACETONE AND ALIPHATIC LOWER ALKYL PRIMARY AMINE ARE EMPLOYED IN THE REACTION OF ACRYLONITRILE AND AN EXCESS OF ACETONE IN A LIQUID MEDIUM IN THE DISCLOSED PROCESS FOR THE PREPARATION OF 4-OXOCAPRONITRILE. THE CATALYSTS HAVE A BOILING POINT BELOW 150*C. AND ARE EASILY RECOVERED FROM THE REACTION MIXTURE. THE PRODUCT 4-OXOCAPRONITRILE IS A STARTING MATERIAL IN THE PREPARATION OF A-PIPECOLINE.

    Process for preparing alkenyl norbornenes
    619.
    发明授权
    Process for preparing alkenyl norbornenes 失效
    制备亚苄基尼龙的方法

    公开(公告)号：US3767717A

    公开(公告)日：1973-10-23

    申请号：US3767717D

    申请日：1971-10-18

    Applicant: STAMICARBON

    Inventor： CREEMERS H

    IPC: C07C2/04 ,  C07C5/24

    CPC classification number: C07C2/04 ,  C07C2523/755 ,  C07C2531/12 ,  C07C2531/24 ,  C07C2531/28 ,  C07C2602/42 ,  C07C13/43

    Abstract: A PROCESS FOR THE PREPARATION OF ALKENYL NORBORNENES IS DISCLOSED. ALKENYL NORBORNENES ARE PREPARED BY REACTION OF A NORBORNADIENE-2,5 WITH AN OPEN CHAIN ALKENE HAVING 2 TO 10 CARBON ATOMS AND A TERMINAL DOUBLE BOND, THE PROCESS BEING CARRIED OUT WITH A CATALYST SYSTEM ESSENTIALLY COMPRISING (1) AN ALKYL COMPOUND OF A METAL OF ONE OF THE GROUPS I, II AND III OF THE PERIODIC TABLE, PREFERABLY ALUMINUM OR MAGNESIUM, AND WHEREIN THE ALKYL GROUPS HAVE FROM 1 TO 10 CARBON ATOMS; AND (2) THE INORGANIC OR ORGANIC ACID SALT OF A METAL OF GROUP VIII OF THE PERIODIC TABLE; AS WELL AS, OPTIONALLY, (3) AN ALIPHATICALLY-SATURATED PHOSPHINE, CARRYING EITHER ALKYL OR ARYL SUBSTITUENTS OF UP TO 10 CARBON ATOMS EACH; AND (4) A SECOND, FULLY ALKYLATED, COMPOUND OF A METAL OF ONE OF THE GROUPS I, II AND III OF THE PERIODIC TABLE, THE ALKYL GROUPS WHICH COMPOUND CAN HAVE UP TO ABOUT 10 CARBON ATOMS. THE PROCESS IS CONDUCTED AT TEMPERATURES OF AT MOST ABOUT 50*C. BUT GENERALLY ABOVE ABOUT -20*C., AND IN THE PRESSURE RANGE OF ATMOSPHERIC UP TO ABOUT 30 ATMOSPHERES.

    Preparation of peptides
    620.
    发明授权
    Preparation of peptides 失效
    肽的制备

    公开(公告)号：US3740386A

    公开(公告)日：1973-06-19

    申请号：US3740386D

    申请日：1971-02-18

    Applicant: STAMICARBON

    Inventor： DAHLMANS J ,  BOESTEN W

    IPC: C07K1/02 ,  C07K1/08 ,  C07C103/52

    CPC classification number: C07K1/02 ,  C07K1/086

    Abstract: THE INVENTION PROVIDES A PROCESS FOR PREPARING PEPTIDES BY REACTING A COMPOUND CONTAINING AN AMINO GROUP HAVING AT LEAST ONE REPLACEABLE HYDROGEN ATOM WITH 2-THIONOXAZOLIDONE-5 COMPOUND DERIVED FROM AN A-AMINOCARBOXYLIC ACID.

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