Document v5VLoao224bDxprLQRrx9aXE

K`"S" FORMULA SHEET COLOR CODE ' DATE... 5/8/*2........... . NAME........ SIIRAIEB S^S. o bj ec t R1F0SIGJIA-TI0B OF s-Sfii BASED ON j b mm Ktsf mm esmm* mi - asm, . BATCH S1ZE-MOLS. 11. BATCH No. OF "K" SAMPLE NONE MATERIAL mtri* Acid - W00 ( 0.7$ ml'*.) 100% WT. GAL* a C. *5 +850 158* MANIPULATION Start sgititor m wS, tank # n la all the tmmmmtL aA from tlim receiving tank #414. Stop tit* agitator an* sake to {2& in Tat 4G0) with aator. (igp K- mo (pit) Nf start fan. Start agitator on mke tank #400 sad boat to 138* 142*? <m band theraoaeter. 155 Titrie fteid -`lOO'C ( 6o aol'n.) +2345 Fig Load - 100!? (featheroft) 1500 +2365 Xnmediately m starting to heat up, run to tfco make tank #400 <3* at 4oj ia saasarisg tank #415). After adding the strong acid, shovel ia aa follows# (1> Add the first ho* of feathered lead while heating to 138* - 142*?. (2) Add another hex of feathered lead hennaing 20 minutes (see notes in regard to elapsed operating tins) after reaching 138*142*r. (3) Add the balance of the feathered lead it 1/2 he*) beginning 55 ointttsB after reaching 138*-142*5*. 33 63 Stir until the batch is completely finished i.e. Teat Feint #lt or yellow la eolort no effect os Conge ftsd papers end no risible signs of reaction. Stop ag itater, insert hose, and-pump to settling tank #405 soar #15 Bldg. Start the agitator in settling tank #409 and, if below 163*F, heat to 163*-167*T. *53 Hitrlc Acid - ICO? (4$ sol*a.) PACKAGE l bs. pe* GOAL YIELD +53 COST GROUP * based on lead. Adjust to pH 3.80-4.20 with Nitric Acid This normally will take about one pail. TYPE COLOR SIGNATURE N37960 K-133S8 FORMULA SHEET COLOR CODE . - DATE */V NAME ^ OBJECT BASED ON BATCH SIZE-MOLS. BATCH No. OF "K" SAMPLE 1720 (pit) MATERIAL 100% WT. GAL. C. C. MANIPULATION Halt*at least 2 Blew*** after adding the acid, saaple, filter and taet for copper ' 0*4 iron hy XS2-12&. If nor* than th aajdram allowable iapurities r found, notify th* tormmn. Nf Step agitator' on the nettling task #409 and allow to aottl at least 30aint*s. ftus by gravity thru th standpipe la hotten of the settling tank 43$ to on* ef th* lead nitrate storage tank* (#410 or #411} . feet Point #1 The pH at tMe point should he 4.4 - 4.6 ; PACKAGE 1ST. g XXX YIELD LBS. PER ' COST GROUP TYPE COLOR 3785 Ihe. p* lOOjf load nitrate (+20j sol'n.) 'N SIGNATURE I* S7SH1RT DUP050149856 SF-10 K-89S3 has beers revised to include the changes made in the lead nitrate operation as a result of the installation of equipment to increase the nitric acid yield. At the same time, changes arising from the elimination of the purification and filtering steps have also been incorporated. The resulting process, K-1720, was found to be satisfactory during a trial run in February, 1942. The time cycles specified are to be considered the minimum and should not be shortened. A batch of lead nitrate can be made under these conditions in approximately 2-1/4 hrs. However, the time cycles may be lengthened when necessary but when this is done it will be necessary to delay the subsequent operations accordingly. Time is saved and smoother operation obtained by having about 3/4 of a box of lead left in the mils tank at the end of each batch. However, there should never be more than 1-3/4 boxes of lead in the make tank at any one time because of danger to the agitator, and because the reaction Is apt to become too violent resulting in loss of acid thru the stack. For this reason, it may at times b necessary to reverse the order of operations #2 and #3 (see addition of lead) l.e. add 1/2 box of lead after 20 minutes and a full box after 55 minutes elapsed time. Strict observance of the following conditions will eliminate any possibility of quality difficulties*~ 1. tJse a good grad of pig lead (see specifications) as a source of lead. Scrap lead, sludges, and tank cleanings of unknown composition should not be used in the manufacture of lead nitrate as long as there is no means of purification provided. 2. Each batch should b completely finished (above pH 44) in the make tank before pumping to the settling tank. If the lead nitrate is below pH 4.0 it will pick.up an appreciable amount of iron during the pumping operation. 3. The pH should be adjusted within the range 3.8 - 4*2 before settling. Above pH 4.2 difficulty will be encountered with crystallisation while below pH 3.8 there will be an appreciable pick up of iron. 4. Each batch should be settled for at least 30 minutes and inspected for clarity before running to storage. Obviously such conditions as vibrations, heavy wind and rain storms (the tank is open to the atmosphere), etc., will prevent complete settling. 5 The following tank cleaning schedule should be followed* Eake tank - clean ovary 30 days. Settling tank - clean very 3 days Storage tanks *> clean very 30 days' Scale tanks ~ clean every 7 days It. SCRUBS MPK N37960.01 DUP050149857 Mm sam^Mzm urnrnrnLj*m&.mtmt soi n .K-1720 jgaiMiai Material - Melded firebox steel, Sim - hemispherical - 42 diameter. Capacity - about 9,000 lbs. molten lead. Type heat- oil burner mounted in brick furnace. Temperature - held 1000o~1200F. on thermocouple located in molten lead, Bristol recorder used. XSA&tfllULfiQS Material - 1/4 sheet iron. Sis - 36* wide, 60 long, and 30* deep. Capacity - about 1000 lbs. feathered lead. Fittings - bottom outlet for draining. - 2* water line for filling. &&AJI Material - Stainless steel {K42S-Cb) lined with aeidproof brick bonded with Pennchlor cement. Size - 43* deep and 134 in diameter (61 gals./in.) Capacity - about 2500 gals. Igitatioa- single paddle type, located 0* above bottom of tank, and traveling at 10 RPM. Fittings - 2 water line. - 1-1/2* open ad steam line for heating. Temperature - measured by Bristol recorder. Cleaning schedule - every 30 days. Material - Stainless steel (S42S-Cb) Size - 40 deep and 43 in diameter (6,27 gala./in.) Capacity - about 250 gals. Fittings - 1-1/2 outlet for draining. ItasikL&m Material - Stainless steel (KA2S~Cfe) Size - 20-1/2 ft. height and 33* is diameter. Packing - 1 Raschlg rings Fan - produces air velocity of about 240 era. ft./ain.thru tower Fittings - water supplied by spray nozzle located at top' of tower * N37960.02 DUP050149858 -2- Material - Stainless steel (IA2S-Cb) Size - 68 deep and 78 in diameter (20.7 gals./in.) Capacity - about 1200 gals, Sittings - 3* outlet valve for draining, Jtaita-gBii Material - anticirca Size - 2 Type - Worthington centrifugal Impeller - closed type. Material wood Size - 6l deep and 120 in diameter (48.2 gals./in.) Capacity ~ about 2900 gals. Agitation> 24s* turbine, 6 above bottom, traveling at 71 EM Fittings - noiseless type heater (1-1/2 steam line). - 5 standpipe, 1-1/2 in diameter, for draining. Cleaning Schedule - every three days. Material - Stainless steel (KA28) with wooden cover. Sise - 9 ft. deep and 14 ft. in diameter. Capacity - about 10,000 gals. Fittings - duriron air sparger for agitation. Cleaning Schedule - every 30 days. sJftm Material - Stainless steel (KA2S) tank and cover. Size - 9 ft. deep and 10 ft. in diameter. Capacity - about 5,000 gals. Cleaning Schedule - every 30 days. L. STEWART 5/28/42 MPH DU P050149859 mu f a c t o r e The present standard formula Is based on a study made during the Winter of 1942. It has been found that for Sumner operation, when the heat loss is noticeably less, it is necessary to use a starting temperature of 128-132F (by hand thermometer) instead of 1380-142F, in order to avoid exceeding the maximum of 180F St has also been noticed that certain types of pig lead react more violently than other types. Where the more active types of lead are used it is also better to use the lower starting temperature as the temperature may exceed the maximum allowable. L. STEWART 6/29/42 N37960.03 DUP050149860