Document emD8zOdJ7MG7r2X2Lvqymx4me

FOR COMPANY USE ONLY HATF April 3, 1973 j&rfr- .TEST AUTHORIZATION NO. TA-G- 73-237, Part I OFFICIAL PRODUCT ma mf "LATYL" BRILLIANT BLUE BG DISPERSED CRUDE DRTF.n .PRODUCT CODE NO. ^28 ^8 POUNDS PRODUCT PROPOSED _____________________ 4 ar f a !iPONSOL 11____________ BUILDING NAME BLDG. 7^3 - TIT LE DETERMINE THE EFFECTS OF KEY DRYER VAR TARTAR ON DPT NO PREPARED BY:. L. C. HALE RESPONSIBLE FOR TEST 0.JL4. ^ AND TEST CONCLUSION: _L LE/W. J. KING To determine how spray dryer inlet temperattire, outlet temperature, pu r po s e o f t e s t : and feed fo solids affect the dispersibility performance test. Objective is to develop spray dryer conditions that will allow drying of heat sensitive dyes with minimum deterioration of DPT. This test will be used for developing data on many of the newer "Latyls" that are sensitive. DURATION OF TEST: One to two charges STANDARD INVOLVED: Hone ANALYTICAL CONTROL: IS No change Change described under Test Details TECHNICAL BASIS FOR CHANGE: TEST DETAILS: See details (Include Safety and Waste Disposal) Safety: Ho unusual safety hazards are imposed as a result of this test. Waste Disposal Dust Emission: Liquid Waste: A negligible amount of dry product is expected to be emitted to the atmosphere. The dust scrubber liquor will contain approximately 0.1 lb./cwt. of dried material. This will be washed to the ditch along with equipment wash water. DISTRIBUTION: J. Blackwell R. J. Pohl J. L. Files B. R. O'Connor <L..A... .Oscar______ APPRO VED-R.Y ^c h i EF SUPVR., OPERATIONS A. S. Brookes, Jr. D. M. Dietz R. T. Gilsdorf L C Hs-ls R. H. Kasch W. J. King G. H. Lake T. E. Lewis E. C. Nelson R. J. Lyng D. Putnam. (3) J. B. Mayberry R. B. Root R. J. McNally R. F. Stalzer D. 0. Miller (3) A. C. Stein J, A, Moffett R, H. Terss M. S. Moores *"3s* Wiederhom. ^4 /? i /<?. CH. SUPVR., TECH. OR PLT. ASSIST. DATE ________________ SUPERINTENDENT, ANALYTICAL (When Required) DATE SUPERINTENDENT, DYE QUALITY CONTROL (When Req'd) DATE AUTHORIAZEDmi's'////-r;y a /a SUPERINTENDENT, MANUFACTURING (Or Delegates) DATE '/ u SUPER INTEN DEjV-T, TECHNICAL (|f Any) MU-1752-B-R6 DUP050467613 Page 2 TA-C-73-237* Part I "Latyl" Brilliant Blue BG- Dispersed Crude Dried April 3* 1973 Test Procedure 1. Prepare the slurry to give ^50^ solids. .Run DPT and % solids on slurry. 2. Install Lurgi 3-flnid nozzle. 3. Set inner atomizing steam pressure at 40 psig 50 lb ./hr.) Set outer atomizing steam flow at 1500 lb ./hr. (/v 80 psig). 4. Set the outlet temperature at l80F. 5. Adjust the slurry feed rate to give an inlet temperature of 350F. (The inlet temperature is controlled by slurry feed rate at a given $ solids and outlet temperature.) Record slurry gpm and product rate; 6. When steady state is reached, sample product and send to G-.A.L. for fo moisture and DPT-.' Save 8-oz. sample for particle size distribution and dust rating. 7. Repeat steps (5) and (6) with the inlet temperature at 550P. 8. Repeat steps (4) to (7) with the outlet temperature set at l60F. Note: The dew point of the outlet air is/v,l4oF. If the outlet temperature is permitted to fall to this level, water will condense in the ductwork and in the dust collector. 9. Shut down the dryer in order to make adjustment in step (10). 10. Add sufficient water to the feed tank in order to bring the % solids of the slurry to r-/30$. This can be calculated as follows: DUP050467614 TA-C~73"237j Part I "Latyl" Brilliant Blue BG Dispersed Crude Dried April 3j 1973 where: S = Lhs. of solids in tank as of this step S = (AXB-CXD) A = Lhs . total in feed tank Before drying (from blue line-up card) B - (% solids of feed)/lOO C = Total lb. spray dried as of this step D = (100 - Avg. $ moisture of product )/l00 E = (Desired slurry $ solids)/100 = 0.30 W = Weight of water to add to bring tank contents to 30$ solids. 11. ' Send slurry sample to G.A.L. for $ solids. Do not wait for results. 12. Repeat steps (5) to (9) at 30$ solids. 13. The attached chart summarizes the conditions that will be run. Note: Spray dryer supervision may decide to eliminate or add to'these conditions if they desire. 14, A record of: barrel number slurry gpm product rate product $ moisture DPT dust rating particle size distribution must be kept for each test condition. DUP050467615 Page 4 TA-C-73-23T, Part I "Latyl" Brilliant Blue BG- Dispersed Crude Dried April 3, 1973 Run Conditions Peed % Solids 50 30 Outlet Temp. (P) 180 160 180 160 Inlet Temp (?) 350 550 350 550 350 550 350 550 DUP050467616