Transfer baskets

A large support vessel approached the platform so that a seriously injured cook could receive medical treatment. A basket transfer was attempted but the leeward crane was not working (the vessel was on the windward side of the platform). The boat had problems with its computer-assisted azimuth thrusters so she was brought in stern-first under manual control. The helideck on the support vessel hit a gas lift riser, which started leaking. The leak resulted in a fire that led to approximately 22 fatalities and a total loss of the platform and of the vessel. During the response two out of eight hfeboats were launched and one out of ten life rafts 362 men were rescued. 

Wash the embryos off the slide into the original collection basket, transfer to a microcentrifuge tube, fix, and stain using standard protocols (Ashburner 1989a,b). 

Once the plant is ready, the cotton is mechanically harvested with either a spindle picker or cotton stripper. The spindle picker selectively harvests seed cotton from open boUs. The unopened boUs are left on the plant and can be picked at a later date. The spindle picker uses a rotating tapered barbed spindle to remove the cotton from the bur (seed case). The seed cotton is wrapped around the spindle, pulled from the bur, removed from the spindle with a mbber doffer, and then transferred to a basket. 

Eeripheiy of the pit. A high-velocity fan beneath the basket circulates eated air up past the cous and then down through the basket. Some heat is radiated to the outer basket shell, but most is transferred by direct convection from the circulating gas to the solids. 

Threaded components and small articles on which excess zinc would interfere with their intended use, or which would otherwise stick together, are galvanised in perforated baskets which are transferred to a centrifuge and spun. This procedure for galvanising small parts is sometimes referred to as spin galvanising . 

Since the O-ring style is not an official design, the analyst should show that it does not give results different from the clipped shafts when testing the product. As part of validation, the two basket shaft types should be compared and equivalence shown. If the types do not give comparable results, there could be problems with technology transfer. In addition, if a... 

In a pilot plant [2,13], superalloy scrap containing Mo, W, Cr, Fe, Co, and Ni is pretreated in a furnace with carbon to transfer refractory metals (Mo, W, etc.) into carbides. The melt is granulated and the resulting material is charged into titanium baskets. Diaphragm-type electrolytic cells are used for anodic dissolution of the granulated material. Fe, Co, Ni, and small amounts of Cr are dissolved into a calcium chloride solution by the current. The metal carbides are not dissolved and remain as an anodic residue in the baskets. 

At the end of the experiment, the stirrer and heaters were switched off and the autoclave allowed to cool to room temperature. The autoclave was opened and the liquid contents were removed by suction. The basket was detached and the catalyst removed into a beaker which was placed in an ultrasonic bath. 10 cm of dichloroethane was added to the beaker which was agitated in the ultrasonic bath for 15 mins. The solvent was removed by suction filtration, the catalyst was washed with portions of acetone until the washings were colourless and the catalyst was air dried. The liquid product was transferred into a glass jar which was sealed under nitrogen and kept in a refrigerator until required. In order to have a sufficient amount of catalyst for a duplicate experiment on the five contacts and to allow a sample of catalyst to be... 

Pant and Chanda [247] report a kinetic study with a sintered V2Os catalyst carried out with a spinning basket reactor. The following selec-tivities are observed at 450—517° C, independent of conversion (20— 40%) and temperature 80% phthalic anhydride, 10% maleic anhydride, 10% carbon oxides. The authors propose a parallel reaction scheme. However, these data, and the absence of tolualdehyde at this conversion level prove that the reactor did not function as a well-stirred reactor, but suffered considerable bypassing (mass transfer limitation with respect to... 

Heat exchange via massive heat-transfer wheel, packed with metal baskets (Lungstrom type)... 

Procedure After 2 h, remove each sample from the basket, and quantitatively transfer into separate volumetric flasks to obtain a solution having a final concentration of about 0.2 mg/ml. Proceed as directed for the Assay preparation in the Assay, starting with "Add about 50 ml of Diluent. Calculate the quantity, in mg, of omeprazole (C17H19N3O3S) dissolved in the Medium by the formula ... 

Recently, a new type of C-P-Q triad was reported in which the carotenoid and quinone moieties were linked to the tetraarylporphyrin via basket handle linkages between opposite aryl groups [65]. This linkage positioned the carotenoid and quinone species above and below the plane of the porphyrin, rather than to the side, as confirmed by H-NMR studies. Evidence for photoinitiated electron transfer in this molecule was provided by incorporating it into a phospholipid bilayer and detecting a light-induced photocurrent. Similar experiments had previously been reported with the other C-P-Q triads discussed above [55],... 

For gas-liquid-solid systems, studies on gas-liquid and liquid-solid mass transfer in basket reactors have been rather limited. For the rotating basket reactor, gas-liquid mass-transfer coefficient data are needed. Liquid-solid mass transfer has been studied by Teshima and Ohashi (1977), and their data are correlated by... 

Internal recycle reactors are designed so that the relative velocity between the catalyst and the fluid phase is increased without increasing the overall feed and outlet flow rates. This facilitates the interphase heat and mass transfer rates. A typical internal flow recycle stirred reactor design proposed by Berty (1974, 1979) is shown in Fig. 18. This type of reactor is ideally suited for laboratory kinetic studies. The reactor, however, works better at higher pressure than at lower pressure. The other types of internal recycle reactors that can be effectively used for gas-liquid-solid reactions are those with a fixed bed of catalyst in a basket placed at the wall or at the center. Brown (1969) showed that imperfect mixing and heat and mass transfer effects are absent above a stirrer speed of about 2,000 rpm. Some important features of internal recycle reactors are listed in Table XII. The information on gas-liquid and liquid-solid mass transfer coefficients in these reactors is rather limited, and more work in this area is necessary. 

Heat- and mass-transfer resistances in the catalyst basket could be significant. They may make data analysis difficult. 

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