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公开(公告)号：US4746443A
公开(公告)日：1988-05-24
申请号：US942999
申请日：1986-12-18
IPC分类号： C02F1/02 , C02F1/66 , C02F101/38 , C02F103/36
CPC分类号： C02F1/66 , C02F1/025 , Y10S210/909
摘要： The instant invention relates to a process and apparatus for treating wastewater containing bentazon by decomposing the bentazon therein and thus eliminating or substantially reducing the bentazon content. This process comprises adjusting the pH of the wastewater to a value of less than 7 and heating it to a temperature of at least about 60.degree. C.
摘要翻译： 本发明涉及一种通过在其中分解苯扎他辛来处理含有苯扎松的废水的方法和装置，从而消除或显着降低了苦参碱含量。 该方法包括将废水的pH调节至小于7的值，并将其加热到至少约60℃的温度。
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公开(公告)号：US4725363A
公开(公告)日：1988-02-16
申请号：US942999
申请日：1986-12-18
申请人： Mao-Yao Huang , Joseph F. Louvar
发明人： Mao-Yao Huang , Joseph F. Louvar
摘要： The instant invention relates to a process and apparatus for treating wastewater containing bentazon by decomposing the bentazon therein and thus eliminating or substantially reducing the bentazon content. This process comprises adjusting the pH of the wastewater to a value of less than 7 and heating it to a temperature of at least about 60.degree. C.
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3.发明授权Method for the preparation of graft polymer dispersions having broad particle size distribution without wildly fluctuating viscosities 失效制备具有宽的粒度分布而没有极度波动的粘度的接枝聚合物分散体的方法
公开(公告)号：US5223570A
公开(公告)日：1993-06-29
申请号：US681306
申请日：1991-04-01
申请人： Mao Y. Huang , Kenneth C. Scott , Joseph F. Louvar
发明人： Mao Y. Huang , Kenneth C. Scott , Joseph F. Louvar
IPC分类号： C08F285/00 , C08G18/63
CPC分类号： C08G18/636 , C08F285/00 , C08G18/635 , C08G2101/00
摘要： A method for preparing graft polymer dispersions having broad particle size distribution without wildly fluctuating viscosities is disclosed. The method comprises:(a) preparing intermediate graft polyol dispersions containing 30 percent by weight or less solids to achieve a broad distribution of partial sizes in a continuous process and(b) charging the intermediate graft polymer dispersion of (a) to a semi-batch reactor as seeds for further grafting to increase the solids content of the dispersion to above 30 percent by weight. The graft polymer so formed is useful in the production of polyurethanes.
摘要翻译： 公开了一种制备具有宽的粒度分布而没有大幅波动的粘度的接枝聚合物分散体的方法。 该方法包括：（a）制备含有30重量％或更少固体的中间体接枝多元醇分散体，以在连续方法中实现部分尺寸的宽分布，和（b）将（a）的中间接枝聚合物分散体装入半 间歇反应器作为进一步接枝的种子，以将分散体的固体含量增加到30重量％以上。 如此形成的接枝聚合物可用于生产聚氨酯。
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公开(公告)号：US4824561A
公开(公告)日：1989-04-25
申请号：US129452
申请日：1988-01-26
申请人： Mao-Yao Huang , Joseph F. Louvar
发明人： Mao-Yao Huang , Joseph F. Louvar
摘要： The instant invention relates to an apparatus for treating wastewater containing bentazon by decomposing the bentazon therein and thus eliminating or substantially reducing the bentazon content. This apparatus includes means for adjusting the pH of the wastewater to a value of less than 7 and heating it to a temperature of at least about 60.degree. C.
摘要翻译： 本发明涉及一种通过在其中分解苯扎他辛来处理含有苯扎他定废水的设备，从而消除或显着降低了苦参碱含量。 该装置包括用于将废水的pH调节至小于7的值并将其加热到至少约60℃的温度的装置。
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公开(公告)号：US4772732A
公开(公告)日：1988-09-20
申请号：US860842
申请日：1986-05-08
IPC分类号： C07D301/32
CPC分类号： C07D301/32
摘要： The invention discloses a method for purifying butylene oxide by using an anion exchange resin and an adsorbent. The anion exchange resin removes acid and aldehyde impurities while the adsorbent removes water impurities from the butylene oxide. Depending upon the impurity level, the purification steps can be conducted singularly or in combination, and the process can proceed either batchwise in a reactor or continuously in a column. The ion exchange resin of the choice is a sulfonated macroreticular anion exchange resin and the adsorbent of choice is a molecular sieve.
摘要翻译： 本发明公开了一种使用阴离子交换树脂和吸附剂来净化环氧丁烷的方法。 阴离子交换树脂除去酸和醛杂质，同时吸附剂从环氧丁烷中除去水分杂质。 取决于杂质水平，纯化步骤可以单独或组合进行，并且该方法可以在反应器中分批进行或在柱中连续进行。 所选择的离子交换树脂是磺化大网络阴离子交换树脂，选择的吸附剂是分子筛。
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公开(公告)号：US4137396A
公开(公告)日：1979-01-30
申请号：US829436
申请日：1977-08-31
摘要： An improvement in the process for the removal of residual catalyst from polyether polyols is achieved by the use of a solvent wash and recovery system.
摘要翻译： 通过使用溶剂洗涤和回收系统来实现从聚醚多元醇中除去残余催化剂的方法的改进。
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7.发明授权
公开(公告)号：US4000065A
公开(公告)日：1976-12-28
申请号：US524806
申请日：1974-11-18
CPC分类号： C02F1/444 , B01D61/58 , C02F1/441 , B01D61/025 , B01D61/145
摘要： Aqueous streams contaminated with minor amounts of organic materials are separated into an aqueous fraction which is concentrated with respect to the organic contaminants and a water fraction relatively free of the organic contaminants by a method which includes a unique combination of reverse osmosis (RO) and ultrafiltration (UF). The organic contaminants include substances having molecular weights of less than 10,000 which are soluble in the aqueous stream initially but have limited solubility ranges and are precipitated therefrom upon concentration. The contaminated aqueous stream is circulated from the high pressure compartment of a RO unit to the high pressure compartment of an UF unit, then to the low pressure compartment of the UF unit, and then back to the high pressure compartment of the RO unit. The contaminants are concentrated in the high pressure compartment of the RO unit, and a portion thereof is precipitated or otherwise rendered amenable to removal along with the UF concentrate upon passing the RO concentrate from the high pressure compartment of the RO unit to the high pressure compartment of the UF unit. Soluble organic contaminants remaining in the aqueous stream are removed in the UF permeate and are recycled back to the high pressure compartment of the RO unit for further concentration and precipitation, followed by recycling to the high pressure compartment of the UF unit for removal.
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