Abstract:
A system having a laser position measurement system is provided including providing a system, such as an imaging system, attaching a light source and a receiver, and connecting electronic circuits to the receiver for position information.
Abstract:
The present invention provides an image system comprising providing magnetic transport rails, spacing magnetic flux rails from the magnetic transport rails, positioning a position gradient strip adjacent to the magnetic transport rails and securing a magnetically levitated carriage assembly to the magnetic transport rails, wherein securing the magnetically levitated carriage comprises securing a linear scanning array and light source to scan images during movement of the magnetically levitated carriage, positioning a position detection tab over the position gradient strip to detect and provide position information and controlling the movement of the magnetically levitated carriage using a motivator tab.
Abstract:
A loaded ion-exchange resin, which resin has been loaded in its shrunken form. Also a process for removing iodide compounds from a liquid carboxylic acid and/or carboxylic acid anhydride obtained from the Group VIII noble metal catalysed, alkyl iodide co-catalysed carbonylation of alcohols and/or their reactive derivatives which process comprises contacting the liquid carboxylic acid and/or carboxylic acid anhydride with a metal loaded ion-exchange resin as described above wherein the metal is one or more of the metals silver, palladium or mercury.
Abstract:
Process for producing acetic acid by carbonylating methanol and/or a reactive derivative thereof in a liquid reaction composition in which there exists in equilibrium, at least a first soluble catalytic species and a second soluble catalytic species. The first catalytic species is the least catalytically active or promotionally active of the species existing in the equilibrium. The process includes determining (i) the concentration of the first catalytic species and/or (ii) the ratio of the concentration of the first catalytic species to the concentration of the second catalytic species in equilibrium therewith, present in the liquid reaction composition and/or a present in a liquid fraction in a separation step, and maintaining (i) and/or (ii) below a pre-determined value.
Abstract:
A process for the removal of corrosion metal contaminants from a carbonylation catalyst solution comprising an iridium and/or rhodium carbonylation catalyst, an alkali and/or alkaline earth metal and corrosion metal contaminants in which the catalyst solution is contacted with a cation exchange resin having its active sites partially loaded with a sufficient amount of alkali and/or alkaline earth metal to maintain the concentration of said alkali and/or alkaline earth metal in the catalyst solution and recovering a catalyst solution of reduced corrosion metal contaminant content.
Abstract:
In an information processing system which has plurality of modules including a processor, a main memory and a plurality of I/O devices, a data transfer switch for performing data transfer operations between the processor, main memory and I/O devices comprises a request bus which has a request bus arbiter for receiving read and write requests from each one of the plurality of modules. A processor memory bus is configured to receive address and data information from a predetermined number of modules, including the processor. The processor memory bus has a data bus arbiter for receiving data read and write requests from each one of the predetermined number of modules which are coupled to the processor memory bus. An internal memory bus is configured to receive address and data information from a predetermined number of modules, including the memory and the I/O devices. The internal memory bus has a data bus arbiter for receiving data read and write requests from each one of the predetermined number of modules coupled to the internal memory bus. A transceiver system is coupled to the processor memory bus and the internal memory bus for transferring data between the processor memory bus and the internal memory bus.
Abstract:
An ion-exchange resin stabilized against shrinkage, the resin being loaded with at least one amphiphilic ion in the absence of sodium cations.Also a process for removing iodide compounds from a liquid carboxylic acid and/or carboxylic acid anhydride obtained from the Group VIII noble metal catalysed, alkyl iodide co-catalysed carbonylation of alcohols and/or their reactive derivatives by contacting the liquid carboxylic acid and/or carboxylic acid anhydride with the ion-exchange resin stabilized against shrinkage as aforesaid, the ion-exchange resin being loaded with one or more of the metals silver, palladium or mercury.
Abstract:
A process for the production of acetic acid which comprises reacting carbon monoxide with a carbonylatable reactant comprising greater than 10%, typically from 30 to 100%, by weight dimethyl ether introduced to a reactor in which there is maintained at elevated temperature a liquid reaction composition comprising a Group VIII noble metal catalyst, for example rhodium or iridium, methyl iodide promoter, an optional co-promoter and water at a concentration in the liquid reaction composition of from 1.0 to 10% by weight.
Abstract:
A process for preparing polylketones by polymerizing a mixture of carbon monoxide and one or more olefins in the presence of a group VIII metal catalyst which is prepared by reacting together: (a) a source of group VIII metal, and (b) an amine, phosphine, arsine or stibine the polymerization being carried out in the presence of a composition comprising hydrocarbyl aluminoxane and tertiary butyl aluminium.