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公开(公告)号：US4090922A
公开(公告)日：1978-05-23
申请号：US765034
申请日：1977-02-02
申请人： Kurt Bauer , Hans-Walter Brandt , Jurgen Schroter
发明人： Kurt Bauer , Hans-Walter Brandt , Jurgen Schroter
摘要： Process for the separation or purification of heat-sensitive compounds by carrier-vapor distillation, wherein the superheated solvent vapor which is loaded with the compound to be distilled is cooled by treatment with condensed solvent in counter-current and the amount of condensed solvent is measured in such a manner that a saturated solution of the compound which is almost at boiling point is formed from the superheated, loaded vapor. The process being especially apted for separating or purifying 4-hydroxybenzaldehydes optionally substituted by one or more C.sub.1 -C.sub.4 -alkoxy groups.
摘要翻译： 通过载气蒸气蒸馏分离或纯化热敏化合物的方法，其中负载待蒸馏的化合物的过热溶剂蒸气通过逆流中的冷凝溶剂处理而冷却并测量冷凝溶剂的量 以过饱和的负载蒸气形成几乎沸点的化合物的饱和溶液。 该方法特别用于分离或纯化任选被一个或多个C 1 -C 4 - 烷氧基取代的4-羟基苯甲醛。
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公开(公告)号：US4732685A
公开(公告)日：1988-03-22
申请号：US914223
申请日：1986-10-02
CPC分类号： B01J19/325 , B01D11/043
摘要： With the extraction method, a material exchange column with an ordered packing 2a or 2b on the basis of a plurality of layers 3 stacked parallel to the column axis and making point contact with one another is used. The packing 2a, 2b is perfused by a continuous and a dispersed phase in a counter current. The packing has a very large specific surface area of at least 300 m.sup.2 /m.sup.3 of packing volume. At the periphery of the packing 2a, 2b, the two phase streams are re-circulated into the packing at regular intervals through a rim seal composed of an elastic material not wettable by the dispersed phase. The rim seal is placed round the packing in the form of an elastic tube or pipe and seals the intermediate space between the internal column wall and the packing. A further improvement in the separating capacity can be achieved if pulsating operation is adopted. The method is characterized, in particular, in that an approximately constant high separating capacity is achieved with a high throughput per unit area over a relatively large loading tolerance of the column.
摘要翻译： 使用提取方法，使用具有有序填料2a或2b的材料交换柱，其基于平行于柱轴线并且彼此点接触的多个层3。 包装2a，2b由逆流中的连续分散相灌注。 填料具有非常大的比表面积至少为300m 2 / m 3的包装体积。 在包装2a，2b的周围，两相流通过由不能被分散相润湿的弹性材料构成的边缘密封圈以规则的间隔再次循环到包装中。 轮辋密封件以弹性管或管的形式放置在填料周围，并密封内部柱壁和填料之间的中间空间。 如果采用脉动操作，则可以进一步提高分离能力。 该方法的特征在于，在柱的相对大的负载公差下，在每单位面积的高通量下实现大致恒定的高分离能力。
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公开(公告)号：US4874473A
公开(公告)日：1989-10-17
申请号：US39550
申请日：1987-04-16
IPC分类号： C07B63/04 , B01D3/40 , C07B31/00 , C07B57/00 , C07C27/00 , C07C29/84 , C07C29/94 , C07C67/00 , C07C67/54 , C07C69/743 , C07C69/747
CPC分类号： C07C67/54 , C07B57/00 , C07C69/743
摘要： Diastereomers can be separated with good industrial success with the aid of extractive distillation. The separation process is characterized in that an auxiliary which changes the partial pressure of the various diastereomers to be separated to a different degree and thus allows easier separation of the diastereomers by distillation is added during the distillation. Using the present process diastereomic cis/trans-permetric acid methyl esters and mixtures of menthol and isomenthol can be separated with isolation of 99% pure product.
摘要翻译： 借助萃取蒸馏，非对映异构体可以在工业上获得良好的成功分离。 分离方法的特征在于，在蒸馏期间加入辅助剂，其将各种非对映异构体的分压改变为不同程度，从而允许通过蒸馏更容易地分离非对映异构体。 使用本发明方法，可以分离99％纯的产物，分离出非对映体顺式/反式多酯酸甲酯和薄荷醇和异戊醇的混合物。
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4.发明授权
公开(公告)号：US4349416A
公开(公告)日：1982-09-14
申请号：US307252
申请日：1981-09-30
CPC分类号： B01D3/40 , C07C29/80 , C07C29/84 , Y10S203/14 , Y10S203/20
摘要： A process and apparatus for the separation of components from a mixture which forms an azeotrope is disclosed by subjecting the mixture to extractive distillation to remove one of the components and regeneration to separate another component from the extracting agent added to the extractive distillation column. According to the invention, a first side stream is withdrawn from the extractive distillation column, passed in heat exchange with the bottoms from the extractive distillation column en route to the regeneration column and returned to the extractive distillation column at a point below the point at which it is withdrawn. A second side stream from the extractive distillation column is withdrawn, passed in heat exchange with the bottoms of the regeneration zone and returned to the extractive distillation column. For this purpose, separate heat exchangers are used for the respective side streams.
摘要翻译： 公开了一种用于从形成共沸物的混合物中分离组分的方法和装置，该方法和装置通过对混合物进行萃取蒸馏以除去其中一种组分并进行再生以从加入萃取蒸馏塔中的萃取剂中分离另外的组分。 根据本发明，将第一侧流从萃取蒸馏塔中取出，在与通过萃取蒸馏塔的塔底物热交换到再生塔的同时，将其返回至提取蒸馏塔， 它被撤回 取出来自萃取蒸馏塔的第二侧流，与再生区的底部进行热交换，并返回萃取蒸馏塔。 为此，各个侧流使用单独的热交换器。
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5.发明授权Apparatus for introducing samples into high pressure gas chromatographs or liquid chromatographs 失效将样品引入高压气相色谱仪或液相色谱仪的设备
公开(公告)号：US4165644A
公开(公告)日：1979-08-28
申请号：US890733
申请日：1978-03-27
摘要： The combination of valves consists of a double passage cross-over spherical valve with which at least one other single passage spherical valve is connected in series. The passage of the cross-over spherical valve under high pressure is connected to the partition column of a gas chromatograph or liquid chromatograph while the other passage is intended for introducing the sample and is under atmospheric pressure when the sample is injected.
摘要翻译： 阀的组合由双通道交叉球阀组成，其中至少一个其它单通道球阀与其串联连接。 在高压下通过交叉球阀连接到气相色谱仪或液相色谱仪的分隔柱，另一通道用于引入样品，并在样品注入时处于大气压下。
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公开(公告)号：US4180438A
公开(公告)日：1979-12-25
申请号：US724052
申请日：1976-09-16
IPC分类号： B01D1/22 , B01D3/34 , C07D295/023
CPC分类号： C07D295/023 , B01D1/225 , B01D3/108 , B01D3/346 , Y10S203/90
摘要： A thin layer evaporator which has a vapor lock above the solvent inlet is used for the preparation of distillate-free sump product which is obtained as solid from the concentration of solutions of water, organic substances and non-volatile constituents and dissolved in solvents.
摘要翻译： 使用在溶剂入口上方具有蒸气锁的薄层蒸发器用于制备无馏出液体积产品，其从水，有机物质和非挥发性成分的溶液浓度溶解在溶剂中，作为固体获得。
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公开(公告)号：US4141799A
公开(公告)日：1979-02-27
申请号：US824198
申请日：1977-08-12
IPC分类号： C07C46/10 , B01D20060101 , B01D1/22 , B01D3/00 , B01D3/14 , C07B31/00 , C07B63/00 , C07C45/00 , C07C50/18 , C07C50/20 , C07C50/34 , C07C67/00 , C07C201/00 , C07C205/47 , C07C225/34
摘要： The purification of high-melting organic products, such an anthraquinone and substituted anthraquinones, which is substantially free from lower-boiling impurities, by melting the product to be purified by heating, while mechanically conveying the same along a path with a screw conveyer, as for example, in a melting screw; degassing the melt at a reduced pressure in a column, as for example, at a pressure of 50 to 400 mm Hg; passing the degassed melt through a thin film evaporator at a reduced pressure of, for example, 5 to 250 mm Hg to evaporate the high-melting organic product and discharging the remaining high-boiling impurities and such impurities which are not capable of being distilled from the evaporator through a conically tapering sump, while mechanically scraping residue from the sump wall, preferably with the use of a rotating helical screw in the sump; the discharge from the sump being effected into and through an enclosed path at a rate sufficient to prevent liquid accumulating in the sump, while maintaining the central portion of the enclosed discharge path at a lower temperature than its end portion to form a crystal sludge in the central portion, which acts as a pressure seal; and solidifying and recovering the product discharging from the enclosed path. The enclosed path is preferably established through a screw-type pump which feeds into a crystallizing screw where the solidification takes place, the crystallizing screw being preferably maintained above the screw-type pump and is maintained filled with an amount of sump product which approximately corresponds to the amount of product in the sump take-off screw. The vapors produced in the thin film evaporator are passed via a heated rectifying column into a condenser, and a portion of the condensate is passed to the column as a reflux and another portion taken off and solidified in a crystallizing screw.
摘要翻译： 通过将通过加热净化的产品熔化，同时用螺旋输送机沿着路径机械地输送，从而净化基本上不含低沸点杂质的高熔点有机产物，例如蒽醌和取代的蒽醌，作为 例如，在熔化螺杆中; 例如在压力为50至400mm Hg的柱中，在减压下对熔体进行脱气; 将脱气的熔体通过薄膜蒸发器在例如5至250mm Hg的减压下通过，以蒸发高熔点有机产物并排出不能从蒸馏出的剩余的高沸点杂质和这些杂质 蒸发器通过锥形锥形槽，同时机械地刮擦来自贮槽壁的残留物，优选地使用在贮槽中的旋转螺旋螺杆; 从贮槽中的排放物以足以防止液体积聚在贮槽中的速率进入并通过封闭路径，同时将封闭排放路径的中心部分保持在比其端部部分更低的温度，以在其中形成结晶污泥 中心部分，用作压力密封; 并固化并回收从封闭路径排放的产品。 封闭路径优选通过螺旋式泵来建立，所述螺旋式泵进料到结晶螺杆中，其中发生固化，结晶螺杆优选地保持在螺旋式泵上方，并且保持充满一定量的贮槽产品，其大致对应于 产品的数量在油底壳起飞螺丝中。 在薄膜蒸发器中产生的蒸汽通过加热的精馏塔进入冷凝器，一部分冷凝物作为回流通入塔中，另一部分在结晶螺杆中脱去固化。
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