GB2184040A - Analytical autoclave - Google Patents
Analytical autoclave Download PDFInfo
- Publication number
- GB2184040A GB2184040A GB08530824A GB8530824A GB2184040A GB 2184040 A GB2184040 A GB 2184040A GB 08530824 A GB08530824 A GB 08530824A GB 8530824 A GB8530824 A GB 8530824A GB 2184040 A GB2184040 A GB 2184040A
- Authority
- GB
- United Kingdom
- Prior art keywords
- beaker
- cover
- autoclave
- flange
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/10—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating materials in packages which are not progressively transported through the apparatus
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/03—Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Sampling And Sample Adjustment (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
An autoclave comprising body 1 with cover, fluoroplastic reaction beaker 4 with its cover 5 which has cylindrical portion 6 and flange 8, and means 17 for hermetic sealing of rection beaker 4 which, according to the invention, is formed by throat 29 of beaker 4, said throat contacting with cylindrical portion 6 of cover 5 and tapered surface 30 contacting with each other and with face surface 31 of flange 8 of cover 5. <IMAGE>
Description
SPECIFICATION
Analytical autoclave
The present invention relates to laboratory equipment and more specifically, to analythical autoclaves.
Most successfully the present invention can be utilized for analytical control of materials in metallurgical, machine-building, chemical and geological fields for dissolution and comprehensive chemical preparation of hardly soluble objects of analyses (dissolution, separation and selective concentration of components).
Besides, the invention can be employed for diverse kinds of thermal and sterilization treatment of various substances in medical, food and other branches of the national economy.
The substance of the invention resides in that an analytical autoclave comprising a body with a cover, a locking device accommodated in said cover, a fluoroplastic reaction beaker with its fluoroplastic cover housed in said body, said cover consisting of a cylindrical portion and a flange with a circular groove, and a means for hermetic sealing of said reaction beaker in which the reaction beaker has a throat and a tapered surface contacting with each other and with the face surface of the cover flange thus forming a means for hermetic sealing of the beaker, the throat being in contact with the cylindrical portion of the cover.
The construction of the reaction beaker in the claimed autoclave and the provision of the means for hermetic sealing of the beaker formed by its throat and the tapered surface contacting with each other and with the face surface of the cover flange ensures reliable hermetic sealing along the vertical axis of the autoclave without any sealing gasket by virtue of mutual wearing-in along the line of contact of the throat and tapered surface of the reaction beaker with the face surface of the cover flange after repeated use of the reaction beaker and its throat. A mandatory precondition for efficient functioning of the hermetic sealing means is the contact of the beaker throat with the cylindrical portion of the cover.
Besides, the claimed shape of the reaction beaker with the cover permits the dissolution temperature of the analysed samples to be raised above 1600C (up to 230"C) due to direct heat transfer from the heater through the bottom of the autoclave-body right to the entire area of the thin bottom of the reaction beaker with the analysed sample, ruling out the overheating along the line of contact of the face surface of the cover flange and the beaker throat and tapered surface along which the beaker is sealed.
The geometry of the claimed shape of the reaction beaker and its cover, free from hardly washable pockets, improves the preparation of the reaction beaker and its cover for subsequent analyses of high-purity materials, ensuring a higher purity, thereby reducing the limits of determining the impurity content while the provision on the reaction beaker of a throat secured in the cover and an elongated cylindrical portion of the cover fitting tightly into the reaction beaker (and thus fixing the cover reliably when the beaker is closed outside of the separable autoclave body) enables the examined samples and reaction components to be loaded in advance into several reaction beakers simultaneously, thereby providing for more rational planning of the experimentalist's working time, excluding the contact of the throat with the material of the body of the functioning autoclave which guarantees against pollution of the sample solution by the material of the autoclave when said solution is poured from the reaction beaker into the laboratory vessels.
It is expedient that the contact of the throat and tapered surface with each other and with the face surface of the cover flange be ensured by mating the side surface of the beaker throat with the tapered surface of said beaker, and the throat be arranged in the circular groove so that the face surface of the flange would contact the side surface of the throat and the tapered surface along their mating line. such a contact will enable hermetic sealing along the vertical axis of the autoclave to be achieved without any sealing gaskets due to mutual wearing-in of the beaker material and cover material, will reduce the sealing area and hence decrease the force of the locking device, required for the guaranteed hermetic sealing of the reaction beaker by its cover.
It is possible that the contact between the beaker throat and the cylindrical portion of the cover would be ensured by placing the cylindrical cover in the reaction beaker so that the side surface of the cylindrical portion would join at least the throat.This permits avoding the distortion of the beaker walls which take the force of the locking device during hermetic sealing into the inside space of the reaction beaker around the seal circumference and ensures reliable fixing of the cover when the reaction beaker is closed outside of the autoclave body.
It is practicable that the autoclave would comprise an open container provided with holes and located coaxially in the beaker with clearances between the beaker walls and bottom on the one hand and the container on the other, and a heat exchanger located, essentially, under the beaker bottom. Said construction of the autoclave makes it possible to carry out the vapour-gas dissolution of the analysed samples and, by building up a selective temperature gradient, to combine the operations of dissolving the samples of the analysed material, separating the matrix and impurity elements and obtaining an analytical concentrate of impurities on a solid collector or in a minimum amount of the solution.
To carry out distillation of the solvent the autoclave may be provided with another heat exchanger mounted on the reaction beaker cover.
It is expedient for the cylindrical portion of the cover to have a chamber communicating through holes with the reaction beaker, having a cylindrical projection directed into the reaction beaker and provided with a perforated flange on which the narrow part of a funnel is coaxially secured and there is a ring with holes installed between the flange and the wider portion of the funnel, said holes being coaxial and, in addition, it is expedient to install a heat exchanger, arranging it essentially under the bottom of the reaction beaker.
These arrangements ensure a directional flow of vapours of the solvent heated on the beaker bottom through the axial hole in the cylindrical projection into the chamber and therefrom, through holes, onto the rings located in the holes and onto the flange of the container with the samples of the materials under test. This, in turn, ensures selective dissolution of the sample components and, in combination with the heat exchanger located essentially under the beaker bottom, provides for the separation of the matrix and impurity elements and preparation of analytical impurity concentrates simultaneously for a number of samples in a single reaction beaker.
Now the claimed invention will be explained by a detailed description of a particular embodiment with reference to the appended drawings in which:
Fig. 1 is a general view of the analytical autoclave ii longitudinal section;
Fig. 2 is an alternative embodiment of the analytical autoclave incorporating an open container loacted in the reaction beaker and a heat exchanger, in longitudinal section;
Fig. 3 is another alternative embodiment of the analytical autoclave incorporating a heat exchanger mounted on the reaction beaker cover in longitudinal section;
Fig. 4 is still another alternative embodiment of the analytical autoclave incorporating a funnel in longitudinal section.
The disclosed analytical autoclave illustrated in Fig. 1 is designed for liquid-phase dissolution of analysed samples heated to 250"C.
The autoclave comprises cylindrical body 1 with cover 2 also of a cylindrical shape, secured on body 1 with the aid of thread 3 provided on its top.
Housed in body 1 are fluoroplastic cylindrical reaction beaker 4 with fluoroplastic cover 5 which has cylindrical portion 6 with tapered surface 7 directed into beaker 4, and flange 8 with circular groove 9.
Bottom 10 of beaker 4 is installed on insert 11 fitted into the hole of bottom 12 of body 1. Insert 11 has hole 13.
Cover 2 is intended for securing fluoroplastic reaction beaker 4 and its cover 5 inside body 1 and has a hole accommodating ring 14 fixed by screw 15 in cover 2, and hole 16 intended for relieving beyond-standard pressure in the autoclave if reaction beaker 14 happens to be depressurized.
The autoclave has means 17 for hermetic sealing of reaction beaker 4 and comprises locking device 18 located in cover 2 and intended to provide the force required for reliable sealing of reaction beaker 4 by its cover 5, for compensating for the temperature variations of the length of body 1, cover 2 and reaction beaker 4 with cover 5, ensuring reliable hermetic sealing under the effect of varying temperatures and acting as a safety device (valve) for relieving the beyond-standard pressure in reaction beaker 4. Device 18 located inside cover 2 comprises T-shaped movable rod 19 with thread 20 at the top, on which tensioning nut 21 is secured by thread 20 above ring 14, and installed coaxially outside rod 19 is block 22 of disc springs 23.Nut 21 is provided for compressing block 22 of springs 23 whose force ensures hermetic sealing via T-shaped rod 19 which contacts with cover 5 of beaker 4. The cylindrical portion of rod 19 has keyway 24 to receive pin 25 secured in ring 14. Pin 25 secured in ring 14 and protruding into keyway 24 keeps rod 19 from turning while nut 21 is being screwed in and out. Nut 21 has holes 26 for the fastening parts (not shown) while washer 27 installed between ring 14 and nut 21 facilitates screwing nut 21 on and off.
Clearance 28 left between the cylindrical portion of body 1 and the lower face of its cover 2 changes with the reduction in the height of beaker 4 and its cover 5 which makes it possible to shorten the travel of block 22 of springs 23 thereby reducing the height of locking device 18 and cover 2.
The reaction beaker 4 has throat 29 and tapered surface 30 which are in contact with each other and with face 31 of flange 8 of cover 5, forming means 17 for sealing beaker 4 by its cover 5.
The geometry of beaker 4, cover 5 and sealing means 17 permits varying the useful volume of beaker 4 by changing the length of cylindrical portion 6 of cover 5, prevents distortion of walls 32 of beaker 4 which take the force of locking device 18 during sealing, ensures reliable fixing of cover 5 when beaker is closed after the reaction components have been charged in outside of autoclave body 1 during preparation of the analysed samples for autoclave dissolution.
Cylindrical portion 6 of cover 5 has a tapering face surface which, however, can be realized differently, depending on the problem in hand.
Clearance 33 determines the distance through which face surface 31 of flange 8 of gradually wearing-in cover 5 can descend on tapered surface 30 of reaction beaker 4.
The autoclave functions as follows: the sample to be examined is placed into reaction beaker 4, then beaker 4 is filled with an appropriate solvent, beaker 4 is closed by cover 5 and, being supported by movable insert 11, is installed in autoclave body 1. Rotating clockwise nut 21 located on cover 2 of autoclave body 1, compresses block 22 of disc springs 23. Cover 2 with precompressed block 22 of disc springs 23 of locking device 18 is screwed all the way on autoclave body 1. Holding autoclave cover 2 against unscrewing and turning off nut 21 by rotating it counterclockwise until loose, relieve block 22 of disc springs 23 which exert force upon cover 5 of reaction beaker 4. This causes hermetic sealing of reaction 4 beaker by its cover 5 along the line of contact of throat 29, tapered surface 30 of beaker 4 and face surface 31 of flange 8 of cover 5 due to their mutual wearing-in.The autoclave is placed on an electric heater (not shown in the figure), is heated to the temperatura required for dissolving the analysed sample and held at the preset temperature within the period of time neceasary for complete dissolution of the sample or selective dissolution of its components. Then the autoclave is taken off the heater and cooled followed by scrawing in locking device 18 which is done by rotating nut 21 clockwise, and autoclave cover 2 is screwed off. Reaction beaker 4 with cover 5 is taken out of autoclave body 1 with the aid of movable insert 11, cover 5 is removed from beaker 4 and the solution of the sample preparad in beaker 4 is analysed for the content of components and impurities, resorting to a complex of chemical and physicochemical analytical methods.
The embodiment of the analytical autoclave illustrated in Fig. 2 is designed for vapour-gas dissolution of the analysed samples and for a combination of such operations as dissolution of samples, separation of the matrix and impurity elements and preparation of analytical concentrate of impurities on a solid collector or in a minimum amount of the solution, and it contains additionally to the embodiment of the analytical autoclave illustrated in Fig. 2: an open container 34 with holes 35 and 36 for admitting the solvent vapours into container 34, said container being arranged coaxially in beaker 4 and forming clearances 37 between beaker 4 and container 34. Container 34 ia provided for holding the analysed samples.
Besides, the autoclave comprises heat exchanger 38 located, essentially, under bottom 10 of beaker 4 and used to create a selective gradient of temperatures along the axis of reaction beaker 4. Container 34 ia shaped like a hollow cylinder with bottom 39 and flange 40 which supports it on projection 41 made on the inside surfaces of walls 32 of beaker 4.
The presence and arrangement of holes 35 and 36 in the container may be realized differently, to suit the problem being solved. Heat exchanger 38 comprises shell 42 with passage 43 for delivery of refrigerant and pipe union 44 for feeding the refrigerant from the system.
The analytical autoclave illustrated in Fig. 2 functions similarly to that illustrated in Fig. 1 except for the fact that the sample is placed into container 34 which is put into beaker 4, suspending its flange 40 from projection 41.
On heating the autoclave on the electric heater (not shown in the figure), the autoclave is transferred on heat exchanger 38 and held there for the period of time sufficient for creating a selective gradient of temperatures.
After autoclaving the sample, container 34 is taken out of beaker 4 with a pair of pincers and the contents of container 34 (concentrated solution of the sample or analytical concentrate of impurities) are analysed.
The embodiment of the analytical autoclave illustrated in Fig. 3 is intended for distillation of solvent and for combining the operations of dissolving the examined samples, separating the matrix and impurity elements, preparing the analytical concentrate of impurities on a solid collector or in a minimum amount of the solution. The autoclave comprises, additionally to the embodiment shown in Fig. 2, another heat exchanger 45 installed on cover 5 of reaction beaker 4 and accommodated inside Tshaped rod 19 of locking device 18. This heat exchanger 45 is provided for the purpose of creating an additional localized cooling zone on cover 5 of beaker 4 aimed at selective changes of temperatures both on cover 5 of beaker 4 and (with the aid of heat exchanger 38 located, essentially, under bottom 10 of beaker 4) on bottom 10 of beaker 4.Heat exchanger 45 has chamber 46 communicating with pipe 47 for admission of refrigerant and circular passage 48 for its discharge. Besides, heat exchanger 45 incorporates disc distributor 49 with holes 50, accomodated in chamber 46 with clearances 51. Connected to pipe 47 and circular passage 48 are coaxiaily-arranged pipe connections 52 and 53 for admission and discharge, respectively, of the refrigerant into and from heat exchanger 45, said pipe connections being secured in the upper part of T-shaped rod 19 by means of tensioning nut 54 screwed on thread 20. Pipe connections 52 and 53 have sealing gasket 55 and pipe unions 56.The location of heat exchanger 45 inside T-shaped rod 19 of locking device 18 ensures an absolute and permanent contact of face surface 57 of heat exchanger 45 with cover 5 of beaker 4 with a force required for hermetic sealing of high pressure in beaker 4 and enables heat exchanger 45 to act as a safety device for relieving the beyond-standard pressure in beaker 4. Chamber 46 with disc distributor 49 is intended for uniform diatribution of the flow of refrigerant over the entire surface of thin face surface 57 of heat exchanger 45 with the purpose of uniform cooling of entire cover 5 and creating a minimum temperature on the top of tapered surface 7 of cylindrical portion 6 of cover 5 of beaker 4 said surface being farthest from the heated body 1 of the autoclave.
The analytical autoclave illustrated in Fig. 3 functions on the same lines as the one shown in Figs 1 and 2 except for the fact that at the moment of putting the autoclave on the electric heater the refrigerant is fed into heat exchanger 45 with the purpose of obtaining a selective gradient of temperatures and distillation purifying of the solvent in beaker 4. The autoclave is heated to the solvent boiling temperature which is accompanied by condensation of solvent vapours on tapered surface 7 of cylindrical portion 6 of cover 5 of beaker 4 and by dripping of the solvent purified by distillation into container 34. The duration of operation of heat exchanger 45 ia selected with the aim of accumulating in container 34 the amount of distilled solvent sufficient for dissolving the analysed sample.Then the delivery of refrigerant into heat exchanger 45 is cut off, refrigerant is completely drained from heat exchanger 45 and the autoclave is heated to the temperature required for dissolving the analyaed sample. On completion of autoclaving the sample, the received concentrate of impurities or the solution of the sample ia subjected to analysis.
The embodiment of the analytical autoclave illustratea in Fig. 4 is intended for dissolution and selective separation of the sample components and ensures separation of the matrix and impurity components and preparation of analytical concentrates of impurities simultaneously for a number of samples in a single reaction beaker 4. The analytical autoclave comprises, additionally to the embodiment of the autoclave illustrated in Fig. 1, heat exchanger 38 shown in Fig. 2 and Fig. 3, and installed, essentially, under bottom 10 of beaker 4. Cylindrical portion 6 of cover 5 has chamber 58 and holes 59. In addition, cylindrical portion 6 is provided with cylindrical projection 60 directed into reaction beaker 4 and having flange 61 with holes 62.Secured coax ialiy by its narrow part 63 on flange 61 is funnel 64 and there is ring 66 with holes 67 installed between flange 61 and wider part 65 of funnel 64. Cylindrical portion 6 of cover 5 has axial hole 68. Holes 59, 62 and 67 are coaxial. Cylindrical projection 60, flange 61, ring 66 and wider part 65 of funnel 64 are accommodated in reaction beaker 4 with clearances 69 between walls 32 and bottom 10 of reaction beaker 4. This layout makes for creating a directional flow of solvent vapours from bottom 10 of beaker 4 through axial hole 68 into chamber 58, and, through holes 59, onto the analysed samples held in containers 70 fitted into holes 62 of flange 61 and in holes 67 of ring 66.Besides, the provision in the autoclave of wider part 65 of funnel 64 dipped into the solvent on bottom 10 of beaker 4 makes for the separation of pure solvent inside wider part 65 of funnel 64 from the products of reaction accumulating in clearance spaces 69 between walls 32 of beaker 4 and wider part 65. Besides, narrow part 63 of funnel 64 secured by thread 71 on cylindrical projection 60 fixes ring 66 with containers 70 installed in advance in its holes 67 on cover 5 of beaker 4.
The analytical autoclave illustrated in Fig. 4 functions just as the autoclave in Fig. 1 does, except that the analysed samples are fitted into containers 70 which are inserted into holes 67 of ring 66. Then ring 66 with its contents is secured between flange 61 of cylindrical projection 60 of cover 5 and wider part 65 of funnel 64. The gradient of temperatures is created by using heat exchanger 39 in the operating mode, similar to that of the autoclaves illustrated in Figs 2 and 3. On completion of the autoclaving treatment of the samples the received impurity concentrates or sample solutions are subjected to analysis.
Claims (7)
1. An analytical autoclave comprising a body with a cover, a locking device accommodated in said cover, fluoroplastic reaction beaker with its cover accommodated in said body, said cover having a cylindrical portion and a flange with a circular groove, and a device for hermetic sealing of the reaction beaker, said reaction beaker having a throat contacting the cylindrical portion of the cover, and a tapered surface, contacting with each other and with the face surface of the cover flange, thus forming said means for hermetic sealing of the beaker.
2. An autoclave as claimed in Claim 1, in which the contact of the throat and the tapered surface of the beaker with each other and with the face surface of the beaker cover flange is ensured by mating the side surface of the beaker throat with its tapered surface, said throat being arranged in the circular groove of the flange so that the face surface of the flange is in contact with the side surface of the throat and the tapered surface of the beaker along their mating line.
3. An autoclave as claimed in Claim 1, in which the contact of the beaker throat with the cylindrical portion of the cover is ensured by fitting the cylindrical portion of the cover into the reaction beaker so that the side surface of the cylindrical portion of the cover adjoins at least the beaker throat.
4. An autoclave aa claimed in Claim 1 in which said autoclave comprises an open container provided with holes and located coaxially in the beaker forming clearances between the walls and bottom of the beaker and said container, and a heat exchanger located, essentially, under the bottom of the reaction beaker.
5. An autoclave as claimed in Claim 4 in which said autoclave comprises another heat exchanger mounted on the cover of the reaction beaker.
6. An autoclave as claimed in Claim 1 characterized in that the cylindrical portion of the cover is hollow and has holes in its bottom and a cylindrical projection directed into the reaction beaker and having a flange with holes and a funnel secured by its narrow part coaxially on said flange and there is a ring with holes installed between the flange and the wider part of the funnel, said holes being coaxial and, in addition, the autoclave comprises a heat exchanger located, essentially under the bottom of the reaction beaker.
7. An analytical autoclave realized substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8530824A GB2184040B (en) | 1985-12-13 | 1985-12-13 | Analytical autoclave |
| DE19863600090 DE3600090A1 (en) | 1985-12-13 | 1986-01-03 | ANALYSIS AUTOCLAVE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8530824A GB2184040B (en) | 1985-12-13 | 1985-12-13 | Analytical autoclave |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8530824D0 GB8530824D0 (en) | 1986-01-22 |
| GB2184040A true GB2184040A (en) | 1987-06-17 |
| GB2184040B GB2184040B (en) | 1990-03-14 |
Family
ID=10589758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8530824A Expired - Fee Related GB2184040B (en) | 1985-12-13 | 1985-12-13 | Analytical autoclave |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE3600090A1 (en) |
| GB (1) | GB2184040B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0385759A2 (en) * | 1989-03-01 | 1990-09-05 | Terry Floyd | High temperature and high pressure digestion vessel assembly |
| FR2695571A1 (en) * | 1992-09-11 | 1994-03-18 | Toulouse Inst Nat Polytech | Autoclave and cups for autoclave. |
| EP0830891A1 (en) * | 1996-09-23 | 1998-03-25 | Mikrowellen-Systeme MWS GmbH | Device and method for heat treatment of a chemical compound by heating under pressure |
| WO2000072957A1 (en) * | 1999-06-01 | 2000-12-07 | Cem Corporation | Sealing closure for high pressure vessels in microwave assisted chemistry |
| EP1321181A2 (en) * | 2001-12-20 | 2003-06-25 | MLS MIKROWELLEN-LABOR-SYSTEME GmbH | Device for sealing a plurality of containers |
| AT521494B1 (en) * | 2018-07-20 | 2020-02-15 | Anton Paar Gmbh | Cap for closing a sample container for microwave treatment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4413423A1 (en) * | 1994-04-18 | 1995-10-19 | Paar Anton Kg | Appts. for decomposition of substances, esp. unknown samples for analysis |
| DE4413426C2 (en) * | 1994-04-18 | 2002-05-08 | Anton Paar Gmbh Graz | Device for measuring pressure and temperature in at least one pressure-tight digestion vessel closed with a lid |
| DE4413425B4 (en) * | 1994-04-18 | 2006-08-31 | Anton Paar Gmbh | Device for monitoring the pressure in several digestion vessels |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4375027A (en) * | 1979-02-21 | 1983-02-22 | The United States Of America As Represented By The Secretary Of The Army | Dual chambered high pressure furnace |
-
1985
- 1985-12-13 GB GB8530824A patent/GB2184040B/en not_active Expired - Fee Related
-
1986
- 1986-01-03 DE DE19863600090 patent/DE3600090A1/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4375027A (en) * | 1979-02-21 | 1983-02-22 | The United States Of America As Represented By The Secretary Of The Army | Dual chambered high pressure furnace |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0385759A2 (en) * | 1989-03-01 | 1990-09-05 | Terry Floyd | High temperature and high pressure digestion vessel assembly |
| EP0385759A3 (en) * | 1989-03-01 | 1990-11-28 | Terry Floyd | High temperature and high pressure digestion vessel assembly |
| FR2695571A1 (en) * | 1992-09-11 | 1994-03-18 | Toulouse Inst Nat Polytech | Autoclave and cups for autoclave. |
| WO1994006553A1 (en) * | 1992-09-11 | 1994-03-31 | Institut National Polytechnique De Toulouse (I.N.P.T.) | Autoclave and goblets therefor |
| EP0830891A1 (en) * | 1996-09-23 | 1998-03-25 | Mikrowellen-Systeme MWS GmbH | Device and method for heat treatment of a chemical compound by heating under pressure |
| US5981924A (en) * | 1996-09-23 | 1999-11-09 | Milestone Inc. | Method and apparatus for measuring pressure in microwave heated vessels |
| WO2000072957A1 (en) * | 1999-06-01 | 2000-12-07 | Cem Corporation | Sealing closure for high pressure vessels in microwave assisted chemistry |
| US6287526B1 (en) | 1999-06-01 | 2001-09-11 | Cem Corporation | Sealing closure for high pressure vessels in microwave assisted chemistry |
| US6863871B2 (en) | 1999-06-01 | 2005-03-08 | Cem Corporation | Sealing closure for high pressure vessels in microwave assisted chemistry |
| EP1321181A2 (en) * | 2001-12-20 | 2003-06-25 | MLS MIKROWELLEN-LABOR-SYSTEME GmbH | Device for sealing a plurality of containers |
| EP1321181A3 (en) * | 2001-12-20 | 2004-01-07 | MLS MIKROWELLEN-LABOR-SYSTEME GmbH | Device for sealing a plurality of containers |
| AT521494B1 (en) * | 2018-07-20 | 2020-02-15 | Anton Paar Gmbh | Cap for closing a sample container for microwave treatment |
| AT521494A4 (en) * | 2018-07-20 | 2020-02-15 | Anton Paar Gmbh | Cap for closing a sample container for microwave treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3600090C2 (en) | 1988-12-08 |
| GB2184040B (en) | 1990-03-14 |
| DE3600090A1 (en) | 1987-07-09 |
| GB8530824D0 (en) | 1986-01-22 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19921213 |