公开(公告)号：US20120100051A1

公开(公告)日：2012-04-26

申请号：US13319811

申请日：2010-05-13

申请人： Chil Y. Choi ,  Gregory A. Hartmann ,  Peng Lei ,  Fuchen Liu ,  William Poncez ,  Peter E. Rogers ,  William A. Scholle ,  Lowell Smith ,  Robert B. Weisenfeld ,  Chen-Hsyong Yang

发明人： Chil Y. Choi ,  Gregory A. Hartmann ,  Peng Lei ,  Fuchen Liu ,  William Poncez ,  Peter E. Rogers ,  William A. Scholle ,  Lowell Smith ,  Robert B. Weisenfeld ,  Chen-Hsyong Yang

IPC分类号： C01D3/04 ,  C07F9/38

CPC分类号： C01B25/18 ,  C02F1/52 ,  C02F1/66 ,  C02F1/72

摘要： The present invention generally relates to processes for recovery of phosphorus values and salt impurities from aqueous waste streams. In particular, the present invention relates to processes for recovery of phosphorus values and salt impurities from aqueous waste streams generated in the manufacture of phospho-herbicides, including N-(phosphonomethyl)glycine and glufosinate.

摘要翻译： 本发明一般涉及从含水废物流中回收磷值和盐杂质的方法。 特别地，本发明涉及在制造磷酸除草剂（包括N-（膦酰基甲基）甘氨酸和草铵膦）中产生的废水流中回收磷值和盐杂质的方法。

公开(公告)号：US5252306A

公开(公告)日：1993-10-12

申请号：US844071

申请日：1992-03-02

申请人： James L. Champion ,  Chung Y. Shen ,  Chen-Hsyong Yang

发明人： James L. Champion ,  Chung Y. Shen ,  Chen-Hsyong Yang

IPC分类号： C01B25/10

CPC分类号： C01B25/10

摘要： There is disclosed an improved process for the semi-continuous production of phosphorus trichloride by the reaction of elemental phosphorus and chlorine in a liquid phosphorus trichloride layer. In accordance with the present invention periodic termination of the process by discontinuing phosphorus feed thereby creating a heel containing residual phosphorus is rendered more safe and less waste is produced by the improvement which comprises chlorinating the residual phosphorus at a substantially constant flow rate and continuing the chlorine feed rate until after observing at least one of either a step-wise decrease in the pressure within the reactor or a step-wise decrease in the flow rate of phosphorus trichloride removed from the reactor and then terminating the chlorine feed when said pressure and flow rate achieve a substantially steady state at a lower value.

摘要翻译： 公开了通过液态三氯化磷层中元素磷和氯的反应半连续生产三氯化磷的改进方法。 根据本发明，通过停止磷进料从而产生含有残余磷的鞋跟，使得该方法的定期终止变得更加安全，并且通过改进产生较少的废物，其包括以基本上恒定的流速对残留的磷进行氯化并持续氯 进料速率，直到观察到反应器中的压力逐步降低中的至少一个或从反应器中除去的三氯化磷流速逐步降低，然后当所述压力和流速 以较低的值实现基本上稳定的状态。

公开(公告)号：US5208000A

公开(公告)日：1993-05-04

申请号：US955590

申请日：1992-10-02

申请人： Chen-Hsyong Yang ,  David O. Fisher

发明人： Chen-Hsyong Yang ,  David O. Fisher

IPC分类号： C01B25/10

CPC分类号： C01B25/10

摘要： There is disclosed a process for the controlled hydrolysis of phosphorus trichloride which avoids the formation of lower oxides of phosphorus, phophines and diphosphines wherein phosphorus pentachloride is added to the phosphorus trichloride from about 20 to about 90 percent by weight of the phosphorus trichloride and then water in the form of finely divided droplets is added over the surface of the phosphorus trichloride while the temperature is controlled to below about 80.degree. C.

摘要翻译： 公开了三氯化磷受控水解的方法，其避免形成磷，磷和二膦的较低氧化物，其中将五氯化磷加入三氯化磷中约为三氯化磷的约20至约90重量％，然后加入水 在三氯化磷的表面上加入细分散液滴的形式，同时将温度控制在低于约80℃。

公开(公告)号：US4695410A

公开(公告)日：1987-09-22

申请号：US901681

申请日：1986-08-29

申请人： Gary J. Lynch ,  Chen-Hsyong Yang

发明人： Gary J. Lynch ,  Chen-Hsyong Yang

IPC分类号： C07C37/72 ,  C07C37/68

CPC分类号： C07C37/72

摘要： The disclosed process is employed to recover phenol from aqueous solutions produced by distillation of the product of a process for producing a phenyl ester by the reaction of a carboxylic acid and phenol. Purified phenyl ester is employed to extract phenol from the aqueous solution. The extract is combined with raw product for recovery of the phenol and phenyl ester. In a preferred embodiment the process for producing the phenyl ester is continuous and the extract containing phenol and phenyl ester are fed to the dewatered ester stream for product recovery.

摘要翻译： 所公开的方法用于通过由羧酸和苯酚的反应蒸馏生产苯基酯的方法的产物产生的水溶液中回收苯酚。 使用纯化的苯基酯从水溶液中提取苯酚。 提取物与原料一起回收苯酚和苯酯。 在优选的实施方案中，用于制备苯基酯的方法是连续的，含有苯酚和苯基酯的提取物进料到脱水的酯流中以进行产物回收。