Document ymVDKENaDz7wkbaYe3JrXBXzV

G F VYMAN Cleveland G. Joolidge, Jr. Coffeyvi.le An* October 29, 1963 Coffeyviile Technical Frogre3a Weexly Heport Oct. 21 to uot 25, 1963 BAAIlg* CAftBOMATZ - H^3 lUOOVgKY The apparatus for counter-current precipitati a of bariiai carbonate, which la expected to rmnove all tha carbon dioxide from the reacting gaa, leaving only nitrogen and hydrogen aulfida, la gradually nearing completion. g a3Ij k jAaaoiiA.fc - b iy rasanu Mo verb performed this week, our efforts have baaa centered on ieac-ailicochromate. BARIUM GAAg'fl-'T- - fJLUTIHSG Ho work oegun s yet. LiiAD-SILIflO-JliaaMArE A quantity of silica-lead sulphide nix la being nada op to be calcined in Jaicago's small rotary caiciner. About aight pounds of finished lead-silioo-chromata were aant to Mr. Oobbert for test purposes. The material analysed* Lead 'feroaate - 23.3* Lead Sulfate - lh.9 Lead Oxide - 5.U ailloa - 52a Zinc 0ad.de - 2.3 The material was obsignated aa UPP 20&5. BARIUM HYIKATS - lE?aiGSiATIDH We are anal ting tha raoaipt oi a mall single refrigeration leaf to oe coated with Teflon* This ia far tha purpose of determining *'*ow effective Teflon is "in pravmttng frosting (hr jalng on its surface whan used to reduce the temper ature at m harl^oi hyilrarths eolation" thereby crystallising the Hydrate. OZLO 12 - *OMKX mil A quantify Of1 plant prednoed Oslo 12 will be made using tha exact stoichiometric quantity of aim sulfate and also possibly a leaser amount in attempts to lower the water soluble salts. This will be reported on when completed. Laboratory work using tha above amount of sine sulfate resulted in an off-color, yellow product. 1IMC MOLIBOATE the U,0--0 pounds recently prepared have bean shipped to Acee, etroit. 0007-SWP-000007115 Jof feyrille Teofa. Report Pago -2- OkSlZ SULFATE 0? KfilTB LEAD the laboratory prepared tutorial analyses* Leed Sulfate - 60.0)1 LMd Oxide - 19.8* Jolor - Hotter than Mew Jersey'* basic Sulfate of (kite Lead The process la relatively duple and la carried eat in the vet at raw teaperatuzs, with no calcination. The eooaadca of the process dll be studied. Ogark oonaianptioa for 1962-63 u mo anted to about 335 tone. ZINC SULHIJS Several strikes of dne sulphate and wusoiiiiM sulfide were node. Four simultaneous atrlkea were aade odnt awaonitas aulphlde of 301 SH and $0ft S8, striking into an Initial t o Iq m of eater aa well aa into a "atrush" slurry. All produced a glassy filtered and dried solid.....net a pignsnt. Three strikes are in the drying or aging stage. Thagr represent sate rial mads with a 301 SH anwmitai sulfide first strike and 1*5 Be sine liquorj sine sulfate first strike using 501 SH sneonlast sulfide aging 2k hours) sine sulfate first strike using wank (3Be) sine liquor and 501 SH nenonl it s auliida and aging 18 hours. T. A. Uorniwfc ooi J. 7. Hunn T. Kirkpatrick K. l. Wilkin--* o. r. J. B. Hnlmmr R. K. KladrUk 0007-SWP-000007116