Chemical Engineering @ChemengFiles.Com

The object of this research was to study quantitatively possibilities of a continuous process of production of perchloric acid from nitrogen peroxide and ammonium perchlorate. Perchloric acid has many properties which make it an important acid in industrial and analytical work and its use would be much greater if its cost of production could be lowered. It is a strong monobasic acid, stable in solutions (up to 60%), has a high boiling point. There are relatively few insoluble salts (potassium, rubidium, caesium, and thallium perchlorates are only highly soluble) and the difference in solubilities of potassium and sodium perchlorates give an easy method of separation of these two metals in analytical work.

The position is in the Production Area of Generation located at the J H Campbell Complex. The Production Engineer is responsible for monitoring and enhancing the following key processes within the Production organization (including, but not limited to): Predictive/Preventive Maintenance; Planning Equipment Outages, On-line Work Management Schedule; Training I Procedures / Job Aids; Corrective Actions; Configuration Control and Economic Based Reliability. In addition, the Production Engineer is responsible for monitoring unit performance trends and acting to prevent or address problems. The role is critical in ensuring day-to-day performance of the generating unit(s).

Lead and coordinate activities with cross functional teams to achieve and ensure that quality standards are met within a Quality Management System. Develops, modifies, applies and maintains quality standards and protocol for processing materials into partially finished or finished materials product. Lead and Coordinate activities with cross functional teams to achieve and ensure that quality standards are met within a Quality Management System.

The results of ballistic piston tests on methane and on n-hexane are described. In the case of methane the calculated reaction temperatures are 2500 to 3500[degrees]R. and maximum pressure range up to 100,000 pounds per square inch. The distribution of reaction products and the amount of reaction are correlated with the reaction conditions. For n-hexane the products are correlated with reaction conditions and in addition reaction rate coefficients were obtained. The decomposition reaction was found to be of apparent one half order with a low apparent activation energy. The range of reaction, temperatures investigated for n-hexane was 1600-2800[degrees]R. with maximum pressures up to 115,000 pounds per sqaure inch.

Zeolite and molecular sieve materials are broadly used as ion-exchangers, adsorbents and catalysts in the chemical industry. Zeolites are typically synthesized by using organic molecules as structure-directing agents (SDA). The SDA should be removed from the pore cavity of the zeolite framework to create microporous void space before the zeolite can be used for further purposes. Porous zeolites have been prepared by calcination, or extraction in very limited cases.

Designs and plans layout for such activities as machining, metal forming, plastics processing, welding and brazing, assembly, and materials handling. Adapts machine or equipment design to factory and production conditions. Plans for the arrangement of machines within plant facilities to ensure most efficient and productive layout. Plans sequence of operations and specifies procedures for the fabrication of tools and equipment and other functions that affect product performance. May incorporate inspection and test requirements into the production plan.

The general problems of particle motion in the vicinity of a flat, non-deforming fluid interface is studied. The approximate singularity method used by previous workers in this research group has been generalized to consider the motion of a sphere in any linear velocity field compatible with the existence of the undisturbed flat interface, and the motion of slender rod-like particles which undergo an arbitrary translation or rotation in either a quiescent fluid or in a linear flow. The theory yields the hydrodynamic mobility tensors which are necessary to describe Brownian movement near a phase boundary, as well as general trajectory equations for sedimenting particles near a fluid interface with an arbitrary viscosity ratio. These approximate solution results are in good agreement with both exact-solutions where they are available and experimental data for motion of a sphere near a rigid plane wall. Among the most interesting results for motion of slender bodies is the generalization of Jeffery orbit equations for linear simple shear flow.

Golden Aura is a professional search and consulting firm in the chemical and Oil/Refining industries. Professional search requires understanding our client’s needs incorporated with a sense of timing/urgency. The operating philosophy is dedication and responsiveness to manage the needs of a company and/or candidate with impeccable integrity, confidentiality and business ethics. We have presented qualified candidates for over ten years to major companies throughout North America. Our successful candidates have advanced to even greater levels in their careers by being placed in companies that fit their skills and career goals.

This position is for a Research Chemical Engineer within the Plant Operations Process Technology group. You will be responsible for planning and executing experiments, and then reporting results in support of innovative process development within Plant Operations. This position involves utilizing lab scale/pilot plant methodology to scale up processes to meet business unit's needs. The work is mainly in our Savage, MN facilities, but this engineer could spend some time working at a Cargill manufacturing plant in the US or abroad.

Pickling liquor is nothing more than dilute sulfuric acid used in the iron and steel industry for removing scales on the surface of iron work which is to be further treated. The reaction for pickling may be represented by the equation FeO + H2SO4 = FeSO4 + H2O. Thus we see from this equation that H2SO4 is gradually used up and FeSO4 formed during the process. It is evident, then, after a certain length of time, H2SO4 will be too valuable to be cast away. This FeSO4 may be converted into an oxide which is a pigment, or taken out in the form of FeSO4.7H2O crystals. The latter is the purpose of this work. FeSO4 has the following uses: photography; writing ink; Prussian blue; preparation of iron oxide for illuminating gas purification; water purification; medicine; disinfectant; textile and leather industries; analytical reagent; making other iron salts.