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公开(公告)号:US3895050A
公开(公告)日:1975-07-15
申请号:US41407673
申请日:1973-11-08
申请人: BADGER CO
发明人: SHEELY HAROLD R
IPC分类号: C07C121/02
CPC分类号: C07C255/00 , C07C253/34 , C07C255/08 , C07C255/03
摘要: A method of recovering and disposing of waste materials from a plant for manufacturing unsaturated aliphatic nitriles or aromatic nitriles whereby waste water, unreacted ammonia and byproducts such as HCN and acetonitrile are not condensed but remain with the absorber off-gas for ultimate disposal by incineration. The method employs a hydrocarbon solvent to adiabatically quench the reactor effluent and, after removal of polymer by-products, the partially quenched effluent is passed to a hot absorber column where the nitrile product but no ammonia and only some of the HCN are absorbed by the hydrocarbon solvent. The nitrile-solvent mixture is distilled to separately recover the solvent and nitrile product. The solvent is recycled. The hot absorber off-gases are cooled to recover water and then incinerated, with ammonia, HCN, acetonitrile and some vaporized solvent furnishing the necessary fuel values. In a preferred embodiment, solvent in the absorber overhead vapors is recovered by scrubbing with a high boiling oil.
摘要翻译: 从用于制造不饱和脂族腈或芳族腈的植物中回收和处理废料的方法,其中废水,未反应的氨和副产物如HCN和乙腈不会冷凝,而是与吸收塔尾气保持最终处置,以最终处置 焚化。 该方法采用烃溶剂绝热淬灭反应器流出物,在除去聚合物副产物后,将部分淬灭的流出物通入热吸收塔,其中腈产物但不含氨,只有一些HCN被吸收 烃溶剂。 将腈 - 溶剂混合物蒸馏,分别回收溶剂和腈产物。 溶剂回收利用。 将热吸收器废气冷却回收水,然后用氨,HCN,乙腈和一些汽化溶剂焚烧,提供必要的燃料值。 在优选的实施方案中,吸收塔顶蒸气中的溶剂通过用高沸点油洗涤来回收。
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公开(公告)号:US3639103A
公开(公告)日:1972-02-01
申请号:US3639103D
申请日:1970-04-21
申请人: BADGER CO
发明人: SHEELY HAROLD R
IPC分类号: B01J8/08 , B01J8/18 , B01J8/24 , B01J8/28 , B01J8/38 , C07C51/265 , C07C51/31 , C07D307/89 , B01J9/20 , B01J11/04 , C07C121/02
CPC分类号: B01J8/28 , B01J8/386 , C07C51/313 , Y02P20/584 , C07C63/16
摘要: Improved fluid bed reactors characterized by downcomers for increasing the rate of catalyst turnover from the reaction zone to a catalyst regeneration zone. The invention is applicable to the production of unsaturated nitriles by the vapor phase reaction of oxygen, ammonia, and an olefin, as well as to other catalytic vapor phase reactions.
摘要翻译: 改进的流化床反应器,其特征在于降液管用于提高从反应区到催化剂再生区的催化剂周转速率。 本发明适用于通过氧,氨和烯烃的气相反应以及其它催化气相反应生产不饱和腈。
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