SU146716A1 - Circulating vacuum crystallizer - Google Patents
Circulating vacuum crystallizerInfo
- Publication number
- SU146716A1 SU146716A1 SU730091A SU730091A SU146716A1 SU 146716 A1 SU146716 A1 SU 146716A1 SU 730091 A SU730091 A SU 730091A SU 730091 A SU730091 A SU 730091A SU 146716 A1 SU146716 A1 SU 146716A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- vacuum crystallizer
- circulating vacuum
- crystallizer
- solution
- circulation
- Prior art date
Links
Description
Известен колонный BaKyyjM-кристаллизатор, в котором циркул ци осуществл етс при помощи переливных перегородок. Однако его существенными недостатками вл ютс образование очень мелких кристаллов и быстрое обрастание внутренних поверхностей солью.A well-known BaKyyM column crystallizer, in which circulation is carried out by means of overflow partitions. However, its major drawbacks are the formation of very small crystals and the rapid fouling of the inner surfaces with salt.
Предлагаемый циркул ционный вакуум-кристаллизатор отличаетс от известного тем, что внутри кристаллизатора установлена центральна циркул ционна труба, в которую снизу подаетс перегретый раствор. Благодар такой конструкции создаетс интенсивна естественна циркул ци и устран етс инкрустаци поверхностей.The proposed circulation vacuum crystallizer differs from the known one in that a central circulation tube is installed inside the crystallizer, into which a heated solution is fed from below. Due to such a construction, intensive natural circulation is created and surface incrustation is eliminated.
Схема нредлагаемого цирку.:1 циоиног() вакуум-кристаллизлтора показана на чертеже.The scheme of the proposed circ.: 1 zioinog () vacuum crystallizer is shown in the drawing.
Он состоит из цилиндрического корпуса /, сепаратора 2 со штуцеро .м 3, в котором поддерживаетс вакуум, и внутренней циркул ционной трубы 4 со штуцером 5. Принцип действи кристаллизатора состоит в следующем.It consists of a cylindrical body /, a separator 2 with a choke. M 3 in which a vacuum is maintained, and an internal circulation pipe 4 with a choke 5. The principle of the mold is as follows.
Гор чий, почти насыщенный раствор соли через щтуцер 5 подаетс в центральную циркул ционную трубу 4. Поднима сь по трубе, раствор вскипает в ее верхней части вследствие понижени давлени . При этом раствор тер ет тепло перегрева и охлаждаетс до температуры, соответствующей его температуре кипени при данном вакууме. В результате охлаждени , а также за счет испарени части растворител , в растворе создаетс пересыщение и протекает процесс кристаллизации. Выпавшие кристаллы в виде суспензии отвод тс по иттуцеру 3 в гилрозатвор , откуда поступают на центрифугу.A hot, almost saturated salt solution through shtucer 5 is fed to the central circulation pipe 4. Going up through the pipe, the solution boils in its upper part due to a decrease in pressure. At the same time, the solution loses the heat of superheat and is cooled to a temperature corresponding to its boiling point under this vacuum. As a result of cooling, as well as due to evaporation of a part of the solvent, supersaturation is created in the solution and crystallization proceeds. The precipitated crystals in the form of a slurry are discharged along the ittusera 3 into the grain shutter, from where they are transferred to the centrifuge.
Отличительной особенностью предлагаемого кристаллизатора вл етс интенсивна естественна циркул ци раствора внутри аппарата, обусловленна разностью удельных весов парожидкостной смеси в центральной трубе и некин щей суспензии в кольцевом прострапстве между центральной трубой и корпусом.A distinctive feature of the proposed mold is the intensive natural circulation of the solution inside the apparatus, due to the difference in the specific gravities of the vapor-liquid mixture in the central tube and the non-suspension in the annular space between the central tube and the body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU730091A SU146716A1 (en) | 1961-05-10 | 1961-05-10 | Circulating vacuum crystallizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU730091A SU146716A1 (en) | 1961-05-10 | 1961-05-10 | Circulating vacuum crystallizer |
Publications (1)
Publication Number | Publication Date |
---|---|
SU146716A1 true SU146716A1 (en) | 1961-11-30 |
Family
ID=48302149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU730091A SU146716A1 (en) | 1961-05-10 | 1961-05-10 | Circulating vacuum crystallizer |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU146716A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993014533A1 (en) * | 1992-01-13 | 1993-07-22 | Tovarischestvo S Ogranichennoi Otvetstvennostju (Aktsionernoe Obschestvo Zakrytogo Tipa) Firma Avanti (Too Firma Avanti) | Attenuator |
-
1961
- 1961-05-10 SU SU730091A patent/SU146716A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993014533A1 (en) * | 1992-01-13 | 1993-07-22 | Tovarischestvo S Ogranichennoi Otvetstvennostju (Aktsionernoe Obschestvo Zakrytogo Tipa) Firma Avanti (Too Firma Avanti) | Attenuator |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU146716A1 (en) | Circulating vacuum crystallizer | |
GB1065725A (en) | Purification of adipodinitrile | |
GB1246277A (en) | Improvements in the crystallisation of substances | |
US3600138A (en) | Crystallizer | |
SU603335A3 (en) | Method of purifying adiponitrile | |
US3634043A (en) | Vacuum crystallizing of solution in a hydrocarbon liquid in the presence of water | |
SU865316A1 (en) | Crystallizer | |
US1485475A (en) | Apparatus for concentrating solutions | |
GB815791A (en) | Improvements in or relating to the production of crystals from solutions | |
GB1106619A (en) | Method of and apparatus for multi-stage flash evaporation and contact condensation | |
US3600139A (en) | Crystallization apparatus | |
US1903472A (en) | Process for the extraction of ethylene glycol or its homologues | |
SU1097886A1 (en) | Device for transpiration cooling of heat release object | |
SU75834A1 (en) | Disassembled apparatus for distilled water | |
GB1094879A (en) | Evaporator for obtaining crystals from organic salt solutions | |
SU70597A1 (en) | Evaporator | |
US1787356A (en) | Crystallization process | |
GB1063054A (en) | Separating succinic acid,glutaric acid and adipic acid from mixtures containing them | |
SU129338A1 (en) | The method of obtaining semiconductor materials containing several volatile components | |
SU359878A1 (en) | ||
GB1079429A (en) | A process for purifying impure acrolein | |
GB935432A (en) | Improvements in the manufacture of crystalline substances | |
JP6974435B2 (en) | Dianhydrohexitol crystal production process using the evaporation crystallization step of the first crystallization mother liquor | |
US1801509A (en) | Method of crystallizing explosives from solvents | |
SU1031448A1 (en) | Vacuum crystallizer |