摘要:
A process for extracting metal values especially zinc values from aqueous solutions of metal salts which comprises contacting the aqueous solution with an organic phase comprising a compound of the formula: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4, independently, represents a substituted hydrocarbyl or hydrocarbyloxy group or R.sup.1 and R.sup.2 together with the attached phosphorus atom and/or R.sup.3 and R.sup.4 together with the attached phosphorus atom form a 5- to 8-membered heterocyclic ring.
摘要:
The invention relates to multilayer materials for producing packaging comprising at least two films and also a layer which is printed with a packaging printing ink, said packaging printing ink comprising a certain hyperbranched polyester containing functional groups. The invention further relates to a packaging printing ink which comprises a certain hyperbranched polyester containing functional groups, and to the use of said printing ink for producing multilayer materials.
摘要:
The present invention is directed towards a placement device for a flat Doppler probe and a method of use that allows for hands-free use of a flat Doppler probe. The device replaces gel for transmitting and receiving ultrasound signals or alternatively encapsulates the gel. The placement device includes a hydrophilic surface that contacts a patient and allows for the transmission and receiving of ultrasound signals. The placement device eliminates the use of gel for easier clean up and optimizes the transmission of ultrasound signals. The placement device includes an adhesive on the patient contacting surface that allows the placement device to adhere to a surface on a patient.
摘要:
The present invention relates to a dosing module (1) for dosing an urea-based reducing agent into a exhaust gas stream of combustion engine and addressed to an after-treatment system, (30) e.g. SCR or SCRT system. The module (1) comprises an housing (20) which develops along a longitudinal axis (X) and an inlet opening (19) for conveying the exhaust gas. Dosage means (55) are provided for dosing the reducing agent. According to the invention, the inlet opening is annular and inclined with respect to the axis (X) of the housing (20) so as to generate an exhaust gas inlet jet (AJ). Moreover the dosage means are designed so as to generate, inside the housing (20), an urea-based reducing agent spray (UWS) coaxial to the axis (X) of the housing (20).
摘要:
A quiescent melt handling system includes a melting furnace and a holding furnace communicating with the melting furnace for holding a molten metal melt. The holding furnace has a relatively large surface area and a relatively shallow depth, having a width to depth ratio in the range of 4-100 to 1. Also provided is structure in the holding furnace for separating inclusions from the melt in the holding furnace. A mold communicates with the holding furnace. A counter gravity casting system, which might comprise a vacuum assisted casting system, draws the melt into the mold.
摘要:
A metal extractant comprising Formula (1) wherein R5, R6, R7 and R8 each independently are hydrogen, an optionally substituted hydrocarbyl group, an electron withdrawing group, an electron donating group, or one or more of R5 & R6, R6 & R7, R7 & R8 are linked in such way as to form an optionally substituted ring; Y is N or CR9 wherein R9 is hydrogen, an optionally substituted hydrocarbyl, optionally substituted hydrocarbyloxy, optionally substituted hydrocarbyloxycarbonyl, optionally substituted hydrocarbylcarbonyloxy group, optionally substituted optionally substituted mono or dihydrocarbylaminocarbonyl group; Z is N or CR10 wherein R10 is hydrogen, an optionally substituted hydrocarbyl, optionally substituted hydrocarbyloxy, optionally substituted hydrocarbyloxycarbonyl, optionally substituted hydrocarbylcarbonyloxy group, optionally substituted optionally substituted mono or dihydrocarbylaminocarbonyl group; and tautomers or salts thereof, with the proviso that both Y and Z could be N provided that no more than one of Y or Z is N.
摘要:
A system for reinforcing the security of a locked door and door jamb combination which includes a first L-shaped plate secured to the studs of the wall adjacent the door jamb, with the L extending into the space between the studs and the door jamb; a second L-shaped plate secured to the inner face of the door jamb, including two members extending into the space between the studs and the door jamb, and one member positioned adjacent the L of the first plate; the two plates firmly secured to the door jamb and the studs, so that when force is applied to the door jamb, the plates overlap to provide a very secure relationship between the door, the door jamb and the underlying studs adjacent the door jamb virtually incapable of being compromised by an intruder. There would be provided a second assembly on the opening edge of the door and the header of the doorway to provide maximum security.
摘要:
An apparatus for collecting particulate material has a collection tray (1) and a fire-resistant collection reservoir (21, 22, 23). A scraper blade (24) is attached to a carriage (7) which is arranged to be driven by an electrical motor along the base of the tray (1) so as to sweep particulate material into the reservoir (21, 22, 23). A pivotal lid normally closes an opening into the reservoir (21, 22, 23) until the scraper blade is ready to sweep particulate material into the reservoir, whereupon the lid is opened to receive the swept particulate material. Actuation of the lid for the reservoir may be operated by electro-mechanical switches or by a solenoid (60).
摘要:
A shaped metal casting made in an aggregate mold comprises fine solidification microstructure that is finer than the solidification microstructure of an analogous metal casting made from conventional molding processes. The solidification microstructure may be up to five times finer than the solidification microstructure of a conventionally prepared casting. In preferred embodiments, as a result of directional solidification, the fine solidification microstructure is substantially continuous from a distal end of the casting to a proximal end of the casting, and exhibits greatly enhanced soundness. Because of the control of the uniformity of freezing of the casting, its properties are substantially uniform.