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1. 发明授权

US3888922A Stabilizing acrylic acid with alkylated phenols 失效
标题翻译：用丙烯酸稳定丙烯酸
公开(公告)号：US3888922A
公开(公告)日：1975-06-10
申请号：US35539073
申请日：1973-04-30
申请人： CELANESE CORP
发明人： LEVY LEON B , FISHER GENE J
IPC分类号： C08F2/00 , C07C51/00 , C07C51/50 , C07C57/075 , C07C67/00 , C08F2/38
CPC分类号： C07C51/50 , C07C57/04
摘要： Acrylic acid is stabilized against vinyl-type polymerization with alkylated phenols such as butylated hydroxytoluene or butylated hydroxyanisole, both of which, at suitable levels, are acceptable for incorporation into foods, drugs and cosmetics.

2. 发明授权

US3875078A Catalyst for oxidation of olefins 失效
标题翻译：烯烃氧化催化剂
公开(公告)号：US3875078A
公开(公告)日：1975-04-01
申请号：US36345073
申请日：1973-05-24
申请人： CELANESE CORP
发明人： LEVY LEON B
IPC分类号： B01J27/057 , C07C51/25 , B01J11/82
CPC分类号： B01J27/0576 , B01J2523/00 , C07C51/252 , C07C57/04 , B01J2523/64 , B01J2523/68 , B01J2523/845 , B01J2523/822 , B01J2523/305
摘要： A process for the oxidation of olefins to the corresponding unsaturated aldehydes and acids, e.g. propylene to acrolein and acrylic acid, by reacting the olefin with oxygen in the presence of a catalyst of the empirical formula

4. 发明授权

US3703551A Process for the conversion of olefins to unsaturated aldehydes and acids 失效
标题翻译：将烯烃转化为不饱和脂肪酸和酸的方法
公开(公告)号：US3703551A
公开(公告)日：1972-11-21
申请号：US3703551D
申请日：1971-03-16
申请人： CELANESE CORP
发明人： LEVY LEON B
IPC分类号： B01J27/057 , B01J37/28 , C07C45/34 , C07C45/35 , C07C51/25 , C07C57/04 , C07C47/22
CPC分类号： C07C45/35 , B01J27/0576 , B01J37/28 , B01J2523/00 , C07C45/34 , C07C51/252 , C07C47/22 , C07C57/04 , B01J2523/31 , B01J2523/51 , B01J2523/64 , B01J2523/68 , B01J2523/74
摘要： DISCLOSURE RELATES TO THE OXIDATION OF OLEFINS TO UNSATURATED ALDEHYDES AND UNSATURATED ACIDS SUCH AS THE CONVERSION OF PROPYLENE TO ACROLEIN AND ACRYLIC ACID IN THE VAPOR PHASE AND AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF A CATALYST COMPRISING PHOSPHORUS, MOLYBDENUM AND TELLURIUM DIOXIDE SUPPORTED WITH RHENIUM ON AN INERT SUPPORT AND METHODS FOR PREPARATION OF THE CATALYST.

5. 发明授权

US3637526A Preparation of oxidation catalyst 失效
标题翻译：氧化催化剂的制备
公开(公告)号：US3637526A
公开(公告)日：1972-01-25
申请号：US3637526D
申请日：1970-04-02
申请人： CELANESE CORP
发明人： LEVY LEON B
IPC分类号： B01J27/057 , C07C45/35 , B01J11/74
CPC分类号： B01J27/0576 , C07C45/35 , C07C47/22
摘要： Disclosed herein is a process for preparing an oxidation catalyst containing molybdenum, tungsten, tellurium, and oxygen, which catalyst has particular utility for the oxidation of propylene to acrolein. A preferred embodiment comprises forming an aqueous solution of ammonium paratungstate and ammonium molybdate, evaporating the liquid from the solution, pulverizing the solid, and then calcining at a temperature of about 400* C. The calcinate is then mixed with tellurium dioxide and the admixture is calcined. This procedure gives longer catalyst life for the oxidation of propylene to acrolein.
摘要翻译：本文公开了一种制备含有钼，钨，碲和氧的氧化催化剂的方法，该催化剂特别用于将丙烯氧化成丙烯醛。优选的实施方案包括形成仲钨酸铵和钼酸铵的水溶液，从溶液中蒸发出液体，粉碎固体，然后在约400℃的温度下煅烧。然后将煅烧物与二氧化碲混合，混合物为煅烧。该方法为丙烯氧化成丙烯醛提供更长的催化剂寿命。

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