• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1491252 Solid/liquid and liquid/liquid contact DYNAMIT NOBEL AG 1 Nov 1974 [3 Nov 1973] 47454/74 Headings B1F and B1Q A process for the exchange of material in heterogeneous systems, e.g. for liquid/liquid extraction, solid/liquid extraction or washing solid or solid suspension with a liquid, comprises supplying a flow of a first mass to an upper region of an exchange column and a flow of a second mass lighter than the first mass to a lower region of the exchange column to flow in countercurrent with said flow of a first mass, wherein (a) the first mass flow is deflected above a plate disposed within the column and extending over the axis of the column so that the mass flow enters into a vertical rotational motion and is mixed with a lighter mass flow passing through a first passage in the plane of the plate and located adjacent the inner periphery of the column and introduced into the rotational motion (b) a mass system forming as a result of the mixing is increased in concentration with respect to the first mass in a region above a second passage in the plane of the plate and located adjacent the inner periphery of the column and (c) after a sufficient pressure drop has been built up in the region of the second passage, the said mass system increased in concentration with respect to the first mass, flows through the second passage into a space below the plate to be deflected into another vertical rotational motion but in an opposite direction to the earlier rotational motion, and is mixed with mass flow supplied from below, in which process the interior of the column is free from moving constructional parts and the travel of the mass flows therethrough is the result of motion imparted thereto prior to entry coupled with effects of gravity and said deflection. The arrangement of baffles to cause the required flows may be as shown in Figs. 3 or 4a, the flow of heavy phase being indicated by double arrows L, and of light phase by arrows K. The process may be used for the separation of dimethyl terephthalate from a suspension using methanol, separating xylene and acetic acid using water, washing glass microspheres with water, and extracting soya beans with hexane.
    公开号:SU1037830A3
    申请号:SU742071370
    申请日:1974-11-01
    公开日:1983-08-23
    发明作者:Гадамовски Ойген；Гоппе Вольфганг；Овенгаузен Ганс-Вальтер；Пиотровски Бернхард；Шмид Верхарт；Шрейбер Георг；Шредер Гейнц
    申请人:Динамит Нобель Аг (Фирма)；
    IPC主号:
    专利说明:

    2. Device by. Claim 1, characterized in that the deflecting elements are set obliquely.
    3. The device according to claim 1, characterized in that the deflecting elements are set horizon. talno and are equipped with shields installed above the passage for the easy phase.
    The invention relates to apparatus for mass transfer between heterogeneous systems in an ion exchange column, into which a heavier mass flow is introduced from top to bottom and a lighter mass flow in the upstream beer. A device for mass transfer, consisting of a vertical column with a central inlet and an outlet, is known. Deflecting elements are installed inside the KOTOPO. There are insufficient stats of a known device in the low efficiency of mass transfer. The purpose of the invention is to improve the efficiency of mass transfer. . This goal is achieved by TQJ that in a device for mass transfer consisting of a vertical column with central inlets and outlets, inside which are installed bias elements, the diverting elements are made flat with the wall of the column and the edges of the diverting elements made two oppositely spaced aisles different sections, with the deflecting elements set obliquely. . In addition, the deflecting elements are mounted horizontally and supplied with shields installed above the passage for the light phase. 1 shows an ion-exchange column for systems of solid particles a liquid, figure 2 shows an ion-exchange column for liquid-liquid systems, in figure 3 an ion-exchange column with horizontal plates, in FIG. 4 this is a top view with solid plates, Fig.5 - the same with plates with slit notches, in Fig.6 a column with inclined plates, a longitudinal section, in Fig.7 - a column with a continuous plates, a longitudinal section. . The device contains an ion exchange column 1 with a housing with an upper 2 and a lower Vp of inclined plate 4 with the first 5 and second 6 holes. A heavier mass flow is fed through the centrifugally located in the upper part 2 of the supply line 7, the initial suspension of DMT and filter is, is a methanol solution of unsuitable crude DMT residues, which primarily contains dimethyl isophthalate (dai and dimethyl orthophthalate) (also: high-boiling parts and small portions of DMT. From the nozzle 8, at the end of the mass transfer, a heavier mass flow is removed, and in this case it is a purified DMT in the washing liquid of methanol. In addition, methanol is supplied to the pipe 9 via an annular conduit located in the lower part 3 of the column, where it flows through the ion exchange column from the bottom upwards in countercurrent to a heavier mass flow. In the upper part 2, an easier mass flow, a mixture of filter, and methanol. In the lower part 3, an additional mixing liquid was also introduced (also methanol) to facilitate removal of a heavier mass flow. The ion exchange column (Fig. 2) for extraction in liquid-liquid systems is provided for separating the xyl solution l-acetic acid. In the upper part of the 2. columns with plates 4 and holes 5 and b through the pipeline 1O serves a heavier mass flow, in this case water, is discharged through pipe 11 as the so-called extract, in this case water in solution with acetic acid1 A lighter mass flow (solution of xylene and acetic acid is fed to the nozzle 12 in the lower part 3 of the column and withdrawn in the upper part 2, in the given case, as separate xylene. Such an ion exchange column can also be used for extraction in solid-liquid systems eg for ex axis action by means of hexane, and the flow conditions are more similar to the conditions for flushing solid particles - liquid in the countercurrent systems. In the ion-exchange column (Fig. 3) With horizontal tracks 1, over the first hole 5 there is a deflection device, in this case inclined a guide sheet 13 entering the ion exchange column, which is closed on its lower end by a horizontal sheet 14 in order to prevent unwanted deposits between the guide sheet and the inner wall 15 of the ion exchange column. Between the lower edge 16 of the deflecting adaptive device and Plate 4 there is a gap 17. Through the first hole 5 and the gap 17 indicated by arrow A, the lighter mass flow goes up, while the larger mass flow indicated by the double arrow through the second hole b of the tray 4 flows down. In the area of the B-zone, a heavier mass flow is converted by means of a deflecting device into a vertical rotational movement, in which a lighter mass flow is also involved. In zone B of mixing, mass transfer takes place and at the same time, due to different densities, there is also a separation-mass flow. In steady state operation, a heavier mass flow accumulates in the area in this case indicated by hatching above BToptatvi hole b, while a lighter mass flow accumulates in area G below the first hole 5i. From here, the mass flows to the next steps of the ion exchange column. The composition of the mass flows is progressively changed as a result of mass exchanges occurring in separate stages.
    The arrangement (Fig. 4) compared with the first holes 5 of relatively large holes: 6 is particularly suitable for mass exchange in solid-particle systems, for example, for washing dates in countercurrent. A lighter fluid is passed through the column in the direction of arrow A from the bottom up, while a suspension with solid particles with a larger density is fed from top to bottom, with solid particles moving downward according to the laws of the particle immersion speed. When an ion-exchange column is put into operation, starting with a certain amount of solid particles or a liquid introduced from below in countercurrent and the velocity in holes 5 and 6 becomes so large that particles can no longer pass through it and because of the inclination the plates 4 accumulate in the region of the lower opening 6, and they rise up turning in the countercurrent liquid flowing through the lower opening C and are already brought into a vertical rotational movement, which, however, still
    has a relatively small spatial expansion.
    With further inflow of solid particles, the latter accumulate in the lower region of the plate 4 and form a layer of particles there, through which, depending on the ratios of the mass flows, the fluid flows. When a sufficiently large pressure drop occurs in this way in the area of the lower opening 6, the suspended solid particles in the direction of arrow D flow down through the lower opening b of the tray 4, entering the next stage, while to compensate, the easier countercurrent fluid flows in the direction of arrow A - upwards through the top hole 5 of the same plate 4. The downward suspension of particles in the upper region 18 of the next plate 4 is transferred to the opposite direction of movement and also in the direction of arrow A carries away a countercurrent fluid passing through its upper opening 5, which is dispersed and mixed with the suspension of particles. A strong flow is formed along the upper and middle regions of the plate 4, which in the lower part of this plate along the layer of particles located there is translated in the upward direction, and a vertical rotational movement is formed, which also as a rotational movement occurs during the commissioning. the hour hand, however, in contrast to the period of entry into. the action extends to a much larger step space. In this area, the mixing areas B are mixed in both mass streams, as a result of which the mass exchange of the cereals occurs under favorable conditions. The mixing zone B is limited by the deposition or settling zone B, which, in contrast to the mixing zone B, is indicated in the figure by more frequent hatching. At the top, the mixing zone B is approximately limited by a horizontal plane that passes through the bottom edge of the plates 4. In the region above this plane, the sedimentation or sedimentation zone D is made, In this zone there is only a more light-weight zinc, actually, there are not enough flow conditions in this area to keep particles in suspension or even transport them. A rather transparent liquid layer is formed above the restless heterogeneous surface of the flow zone. , .... The processes described for this stage are respectively repeated in barely further steps of the ion exchange columns, with the direction of rotational movement varying from one step to the next. Although the composition of the streams of the material varies from one step to the next, practically the same flow patterns exist. In accordance with the above example of washing with DMT in a countercurrent, this means that in the uppermost or upper stages of the ion exchange xxlone in the settling zones, more impure DMT suspension accumulates and the filtrate from which the filtrate is replaced more intensively with methanol, the further a heavy mass flow advances down the ion exchange column until finally a practically pure suspension of DMT and methanol is removed from the scent of the ion exchange column. Conversely, the countercurrent liquid supplied from below (methanol accumulating in the settling zones D and the more the filtrate containing varies with addition to the upper part 2 of the ion exchange column. Figures 6 and 7 depict sample colors for a possible form of plate 4. Referring to FIG. In the ion exchange column, having a circular cross-section, the plates 4 are placed horizontally or inclined. The first hole 5 is made as a narrow annular gap between the inner wall 15 of the ion exchange column 1 and is made, for example, of sheet 4 with a plate 4. It directly passes into the second large opening 6, however, it can be separated from it by a more or less wide partition.The plate 4 in the ion-exchange column is attached by means of not shown props, attached squares or the like. the plate 4, which has the first hole 5 separately located opposite the second larger hole 6. In the area following the hole 5 ,. In case of necessity, additional NM strands, slots or the like may be provided. Example 1. System: DIT-filter-methanol) apparatus: glass column, diameter 225 mm, height 4000 mm, cross-section 395 с№; insertions: 16 inclined plates, the distance of the plate (measured between the same points of the plate) 240 inches slope (in relation to the horizontal) 40 cross section in the light of the first hole about 16 cross-section in the light of the second hole 154 cm, inflow: 320 l / h of suspension from 300 g SCHT / p filtrate 350 l / h of methanol, outflow: 290 l / h of suspension with 350 g of DMT / l of methanol 380 l / h of the filtrate-methanol solution. Acid number: starting product 1.8, target product (washed DMT) 0.6, Acid number is a scale for the purity of DMT and indicates how many milligrams of hydroxide are needed to neutralize a solution of 1 g of product in chloroform. For comparison, the acid number of the same starting material after the usual complex double centrifugation, and there was a mixture of methanol of the same purity as in Example 0.4. Therefore, the proposed method at a much lower cost product of the same purity. Example 2. System: DMT-methanol filter, apparatus: L-steel column, diameter 900 mm, height 5000 mgi, cross-section 6360 cm2, built-in: 8 inclined plates, distance between equal points 450 mm, inclination to the horizontal ratio 30 °, the cross section in the light of the first hole is about 90 cm, the cross section of the second hole is 278 cm, the inflow: 6000 l / h of the suspension — with 300 g DMT / l of filtrate 4800 l / h of methanol, the outflow: 5500 l / h of the suspension with 330 g DMT / l methanol 5300 l / h of the filtrate-methanol solution. Acid number: starting product 1.2, target product 0.15. Example 3. The system and apparatus, as well as the inserts analogous to Example 2, differ only in the cross section in the second hole: 2190 cm, inlet: 5000 l / h of the suspension with 300 g DMT / l of filtrate 5500 l / h methanol, outflow: 4500 l / h of suspension with 350 l of DMT / l of methanol 600 l / h of filtrate-methanol solution. Acid number of original product 1.18, target product 0.21. Compared with example 2, as a result of the unsuccessfully selected second hole with the worst acid number of the target product, the amount of methanol used is much larger. Example 4., System: glass balls in polluted water, water, average ball diameter 0.15 mm; apparatus: glass column, diameter 40 mm, height 1000 mm, cross-section 12.6 cm, fittings: 10 inclined plates, the distance between the same points is 35 mm, the slope in relation to the horizontal is 30 °, the cross section in the light of the first hole is about 0.5 cm, the cross section in the light of the second hole is 2.95 cm2, the flow is 100 l / h of suspension with 150 g of glass balls / l of contaminated water, 120 l / h wash water.
    outflow: 100 l / h of suspension with 150 g of glass beads / l of water, 120 l / h of contaminated water.
    EXAMPLE 5: System and apparatus according to Example 4, embedding: 10 inclined plates, the distance between the same points is 55 mm, the inclination with respect to the horizontal is 50
    clear cross section of the first hole is about 0.6 cm, clear cross section of the second hole is 2.4 cm, inflow: 100 l / h of the suspension with 100 g of glass beads / l of polluted water, outflow: 100 l / h of the suspension with 100 g glass beads / l, water, 105 l / h of polluted water.
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    3
    权利要求:
    Claims (3)
    [1]
    1. DEVICE FOR MASS TRANSFER, consisting of a vertical column with a central inlet and outlet holes, inside koto (cerned mounted deflecting elements you • from l ayusche ich I e with the fact that, with a view to the efficiency of mass transfer of substances, the deflecting elements are flat, wherein between the wall of the column and the edges of the deflecting elements, two oppositely arranged passageways of different sections are made.
    4 * 1
    1'037830
    [2]
    2. The device according to. p. 1, characterized in that the deflecting elements are installed obliquely.
    [3]
    3. The device according to claim 1, 'characterized in that the deflecting elements are installed horizontally and are provided with shields installed above the passage for the easy phase.
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    同族专利:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2355106A|DE2355106C3|1973-11-03|1973-11-03|Method and device for the exchange of substances between heterogeneous systems|
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