Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Cleaning active

An initially clean activated carbon Led at 320 K is fed a vapor of benzene in nitrogen at a total pressure of 1 MPa. The concentration of benzene in the feed is 6 mol/m. After the Led is uniformly saturated with feed, it is regenerated using benzene-free nitrogen at 400 K and 1 MPa. Solve for Loth steps. For sim-phcity, neglect fluid-phase acciimiilation terms and assume constant mean heat capacities for stationary and fluid phases and a constant velocity. The system is described by... [Pg.1524]

Check continuity zero and adjust Calibrate as required Chemical Cleaning Activation Passivation Rinse... [Pg.331]

In addition, the all-(S) absolute configuration of the Subcoccinella 24-punctata macrocycles was determined by chiral GC-MS comparison of derivatives of the natural material with optically pure synthetic samples [56]. Furthermore, it was demonstrated that this secretion serves as a potent antipredator defense contact with it elicited pronounced cleaning activity by the predatory ant Crematogaster lineolata. Additionally, application of the secretion to palatable food items rendered them unacceptable to the ant [58]. [Pg.193]

The release of the dust is caused by the activity of animals or man or the function of technical equipments in the animal house. Feeding, particularly dry feeding (25), as well as bedding and cleaning activities, the use of different systems of feed distribution, manure removal and ventilation (26) can increase the dust level in the air of animal houses considerably (27). Figure 1 gives an example of the relation between the amount of dust in the air and different activities based on values as reported by CERMAK and ROSS (27) for poultry houses. [Pg.346]

From a historic point of view, metal-catalyzed or metal-promoted hydroamina-tions were first achieved with alkali metals [4]. The use of soluble transition-metal complexes as catalysts for the OHA reaction was pioneered by DuPont workers during the 1970s, the best results being obtained with Rh and Ir salts [5], Later, the finding that electron-rich Ir(I) species cleanly activated N—H bonds to form Ir-amido-hydrido species [6] opened the way to study the reactivity of these amides... [Pg.145]

Cleaning materials and their methods of use can present significant and, frequently, undetected fire hazards. Any cleaning chemical or material brought into a facility should be reviewed for potential hazards using Material Safety Data Sheet (MSDS) information as a part of the material s hazard identification element of the overall fire prevention program. Cleaning activities should not be allowed to add unreasonable hazards to a facility. [Pg.40]

Sources of AOX include PhCs, their metabolites, chlorine-forming disinfectants, used in cleaning activities, and halogen-containing solvents, employed in laboratories, as well as other chemical substances like ethidium bromide [17]. AOX levels have been found to range from 150 to 7,760 pg in HWWs, in stark contrast to the 0.04-0.2 pg range measured in UWWs. [Pg.144]

While bleaching reactions are outside the usual scope of catalytic research, they are particularly important i.a. in the context of laundry washing and effluent cleaning [20]. For textile cleaning, activation of the oxidant (H2O2, domestic bleach) at temperatures below 40 °C is critical. Some Mn compounds seem to have potential for this application [21]. For... [Pg.849]

Figure 15. Response of the Integrated Scanning Pyroelectric Microcalorimeter to a Pulsed Electrical Heat Input a.Response of a clean activated charcoal coated scanning microcalorimeter in a standard oil pumped vacuum system at a... Figure 15. Response of the Integrated Scanning Pyroelectric Microcalorimeter to a Pulsed Electrical Heat Input a.Response of a clean activated charcoal coated scanning microcalorimeter in a standard oil pumped vacuum system at a...
Logbooks are typically used to document ancillary cleaning activities and equipment usage. These logbook entries must consistently correspond to the activities delineated in any given batch record. [Pg.301]

As the metal dissolves, it gives up two electrons which reduces the C=0 bond. The mercury alloyed with the zinc does not participate in the reaction it serves only to provide a clean active metal surface. The mechanism of reduction s is not very clear, but it is believed to proceed as shown in Scheme 6.27. [Pg.253]

Kinetic effects of a different nature occur if the strong catalyst poisons diffuse so slowly that at first only the outer parts of the catalyst particles are poisoned (shrinking-core model, as discussed for dewaxing (10)) or that these poisons are converted in the outer layers of the catalyst, leaving a clean active core (11). [Pg.381]

At one end of the range of form factor values, liquids and gases are assumed to be completely released and given a form factor of 1. At the other end of the scale, a monolithic solid such as a container of vitrified HLW or a clean, activated component weighing several tons would release virtually no material and is conservatively assigned a form factor of 10 which is a release of activity of one part per million (ppm). [Pg.130]

High Pressure a Clean Activation Method for Sustainable Organic Synthesis... [Pg.237]


See other pages where Cleaning active is mentioned: [Pg.528]    [Pg.1183]    [Pg.594]    [Pg.116]    [Pg.253]    [Pg.195]    [Pg.688]    [Pg.807]    [Pg.103]    [Pg.330]    [Pg.216]    [Pg.862]    [Pg.528]    [Pg.12]    [Pg.260]    [Pg.278]    [Pg.83]    [Pg.106]    [Pg.75]    [Pg.97]    [Pg.155]    [Pg.2071]    [Pg.53]    [Pg.74]    [Pg.469]   
See also in sourсe #XX -- [ Pg.540 ]




SEARCH



Activity of detergents in dry cleaning

Electrode cleaning and activation

Storage, cleaned surfaces active

Wettability Improvement of Metallic Surfaces by Active and Passive Plasma Cleaning

© 2024 chempedia.info