Document yEwQ4xZ7E42V9neMLo4jpdZ6

Cleveland S. B. Coolidge, Jr, Coffeyville #30 lux. October 16, 1963 Coffeyville Technical Progress Weekly Report Oct. 7 to Oct. 11, 1963 BARiUH CARBONATE - H?S RECOVERY The apparatus for counter-current precipitation of baid.ua carbonate is still in the process of being mads up and assembled. The turbo-mixers bad to be worked over and coated, small tube pumps are being mads, and 20 liter glass precipitating jars had to bs modified to fit into the scheme. Doe to more pressing work elsewhere, such as getting the hydrate plant ready, the assembly of this equipment has mads alow progress. BARIUM CARBONATS - WET FEEDING This apparatus is about ready. We can possibly start experimental work the week of October lUth. BARIUM MOMOHYDBATB - RSF1I0KRATI0M A mail single refrigeration leaf to be costed with teflon has been ordered, 'Phis is for the purpose of determining whether barium hydroxide crystals will adhere to a teflon surface under refrigeration. BARIUM CARBONATE - PELLETIZING This will begin in tha near future, using barium hydroxide, possibly caustic soda, or soda ash solutions to be used as bindsrs for tha pellets. LEAD SILICA - CHRPHATS The preparation of tha tea pound sample to be sent to Mr. Oabbert for testing pur poses is nearing completion. This has been mads from a 60/U0 silica-lead sulfide mix, roasted, ground, slurried in water and treated with sodltai dichromate to fora lead chromate. ZINC MOLYBDATE Ve are in the process of asking U,000 pounds of sine molybdate to be shipped to Acme. This is being dorstailed into Solfast Titan Yellow operations in the Pilot Plant. BASIC SULFATE OF WHITS LEAD Since Mexican litharge is cheaper than domestic litharge, and our only source of supply of basic sulfate of White lead is Eagla-Picher, possibly we can economically produce our own material. Last fiscal year we consosed 911,500 pounds of B.S.W.L. We haws two thoughts of approach. One is by acidifying lead sulfide residue from the oslde sufficiently to produce some lead sulfate, roasting the mix of lead sulfate and lead sulfide to attempt to produce e B.S.W.L. of proper chemical composition. 0007-SWP-000007113 Fag* -?< Begle Sulfate of *hit L--d (Cont**) The ether i* by slurrying Mexican litters* in water, parti*! iy raifeto it with sulfuric acid end possibly nldu it to an acceptable R.S.v.L. 02X3 12 - SOLUBLE SALTS There has been axprtssod a resent contention that the water selubl* salts in Oslo 12 nay be a factor in affecting the durability of a paint flla. Zinc sulfate is present to the extent of 0.2 to 0.3* in the pignent. Since sntiaottj united with lead is s yellow substance, and sine .-sulfsta prevents their union during Oslo If Mmfaeturo, we hare always used e alight excess of tine sulfate for this purpose. At one ties antinony ran as td^h as 1.5* GbyQj in the original fuse* Xov that it lies between 0.2 and 0.32^ uerhuft* we oan reduce the excess xino sulfate to ail, possibly seen allow a snail amou.it of PbO to rewin without the forwsti-n of an objectionable yellow lead antlnonate. ZISC SULPHATE EsrperisMGtal work has begun In precipitating sine sulfide from a sine sulfate solution, wring awooni-irc sulfide es the preeipitant. tbn first product obtained after saidnation *es low in tintirg strength. The intereetinf features of this rrsosea er* that the exeess ef free bsrian carbonate neaufseture would bo absorbed in smsnlua hydroxide to form Bwoniusi sulfide, and the awacnitw sulfate form'd during the precipitation of the nine sulfide has value as a fertiliser. 7. . Horntub set J. V. Ham T. Kirkpatrick X. H. Wilkinson 0. F. jnm <7. B. Bochnsr R. X. Kindriok 0007-SWP-000007114