Zimmer slipstream magnesium hydroxide recovery demonstration. Volume I of II. Final report, April 1, 1993--May 31, 1995 Page: 33 of 132
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D. General Arrangement of the Pilot Plant
The layout of the magnesium hydroxide recovery plant is shown in Figure 8. All equipment,
except for the magnesium hydroxide thickener and storage facility, is located inside a 30' x 41' x
35' high prefabricated building which is situated close to the existing thickener. Other equipment
was placed as necessary during testing. The concrete floor slab was constructed at existing grade
level. Piling was not needed.
All equipment is controlled by a P.L.C. mounted inside the motor control center. Operator
interface for start/stop, monitoring and data collection was through a graphics software package.
Manual override of electrical motors is located at the motor control center. Refer to the attached
Equipment List (Table 1) and Single Line Electrical Diagram (Figure 9) for details.
E. Approach to Meet Project Objectives
A set of test matrices, containing various operating conditions, were developed for the
independent testing of the oxidizer, crystallizer, and hydroclones. Procedures for the testing
campaigns appear in Appendix II and titled Test Set-Up Sheets. These sheets were used by the
operators to setup operating parameters for each test period. Analysis of all liquor samples was
performed on-site via a chemical laboratory located in the operators station. The results of these
analysis are located in Appendix III. Solids' Analysis were performed at Dravo Research Center
and are listed in Appendix IV. Scanning Electron Microscope (SEM) pictures and typical
microtrac analysis of the sampled slurry streams sampled are in Appendix V.
The overall focus was on the production of high purity magnesium hydroxide. Parameters that
may effect purity that were tested during the project were:25
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Zimmer slipstream magnesium hydroxide recovery demonstration. Volume I of II. Final report, April 1, 1993--May 31, 1995, report, March 1, 1998; Columbus, Ohio. (https://digital.library.unt.edu/ark:/67531/metadc693041/m1/33/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.