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The amount of catalyst circulating between the regenerator and the reactor amounts to about 5 kg per kg of feedstock, which is equivalent to about 4.66 kg per litre of feedstock. [ 1 ] [ 9 ] Thus, an FCC unit processing 75,000 barrels per day (11,900 m 3 /d) will circulate about 55,900 tonnes per day of catalyst.
In Canada, the use and sale of 2,4,5-T was prohibited after 1985. [5] The international trade of 2,4,5-T is restricted by the Rotterdam Convention. 2,4,5-T has since largely been replaced by dicamba and triclopyr. Human health effects from 2,4,5-T at low environmental doses or at biomonitored levels from low environmental exposures are unknown.
Methylethyl ketone oxime is the organic compound with the formula C 2 H 5 C(NOH)CH 3.This colourless liquid is the oxime derivative of methyl ethyl ketone. MEKO, as it is called in the paint industry, is used to suppress "skinning" of paints: the formation of a skin on paint before it is used.
A number line is usually represented as being horizontal, but in a Cartesian coordinate plane the vertical axis (y-axis) is also a number line. [5] The arrow on the line indicates the positive direction in which numbers increase. [5] Some textbooks attach an arrow to both sides, suggesting that the arrow indicates continuation.
One of Pauling's examples is olivine, M 2 SiO 4, where M is a mixture of Mg 2+ at some sites and Fe 2+ at others. The structure contains distinct SiO 4 tetrahedra which do not share any oxygens (at corners, edges or faces) with each other. The lower-valence Mg 2+ and Fe 2+ cations are surrounded by polyhedra which do share oxygens.
The dual quaternion of a displacement D = ([A], d) can be constructed from the quaternion S = cos(φ/2) + sin(φ/2)S that defines the rotation [A] and the vector quaternion constructed from the translation vector d, given by D = d 1 i + d 2 j + d 3 k. Using this notation, the dual quaternion for the displacement D = ([A], d) is given by
One full wavelength in the conductor requires 2 π skin depths, at which point the current density is attenuated to e −2 π (1.87×10 −3, or −54.6 dB) of its surface value. The wavelength in the conductor is much shorter than the wavelength in vacuum , or equivalently, the phase velocity in a conductor is very much slower than the speed ...
[4] Although the methods of case skinning individual animals vary slightly, the general steps remain the same. To case skin an animal, it is hung upside down by its feet. A cut is made in one foot, and continued up the leg, around the anus and down the other leg. From there the skin is pulled down the animal as though removing a sweater. [5]