Document RjkZG8wngzEz6ZOKyD3QNE0yV

SgR COMPANY USE ONLY l/Jd ' TEST AUTHORIZATION NO. TA-C- DATE . 72-455 June 19, 1972 3S8CESS. FTLJ- OFFICIAL PRODUCT n a mf "Latyl" Brilliant Blue BG Disperse Crude Dried________ PRODUCT CODE Mn 428 480POUNDS PRODUCT PROPOSED_ 27,000_______________ AREA"Ponsol"BUILDING n a me Bldg, 743 Ponsol" Dryer #2 jljl_E Compare spray dryer nozzles.____________________ PREPARED RV- S' L. C. Hale RESPONSIBLE FOR TEST ^____ AND TEST CONCLUSION:____L_, __C. A. C. Stein PURPOSE OF TEST: To compare the atomization and drying of "Latyl" Brilliant Blue BG wet cake using the Proctor & Schwartz paste nozzle and a Lurgi double fluid nozzle. DURATION OF TEST: Two charges. STANDARD INVOLVED: None ANALYTICAL CONTROL: ^KNo change Change described under Test Details TECHNICAL BASIS FOR CHANGE: OCNB 310-120 TEST DETAILS: (Include Safety and Waste Disposal) See details . Safety; No unusual safety hazards are imposed as a result of this T.A. Waste Disposal: Dust Emission - A negligible amount of dry product is expected to be released to the atmosphere. Liquid Wastes - 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 H. P. Landerl E. W. Boyles A. S. Brookes,Jr. CHIEF SUPVR., OPERATIONS J. E. J. H. D. M. R. ,T. L. C. R. .H. Cole,Jr.(3) DeYoung Dietz Gilsdorf Hale Kasch D. B. Kirk J. F. Laucius J. R. McCloskey R. T. McNally D. O. Miller J. A. Moffett M. S. Moores DATE CH. ! TECH. OR PUT. ASSIST. //1, J. A. Oscar D. Putnam (3) R. B. Root R. F. Stalzer A. C. Stein R . H . Te r s s :. Wiederhorn J /. //9/'X> SUPERINTENDENT, ANALYTICAL (wlien Requirod) AUTHORIZED BY SUPERINTENDENT, (.1ANUPACTORING (Or OeNijates) /lu MU*1 762-B-F56 DATE SUPERINTENDENT, DYE QUALITY CONTROL (When flcq'd) DATE DATE SUPERINTENDENT, TECHNICAL (If N329*?0 p-*' DUP050467632 Page 2 TA-C--72-455 "Latyl" Brilliant Blue BG Disp. Cr. Dried Description: Initial screening tests have shown the Lurgi double fluid nozzle to be less severe than the Proctor & Schwartz nozzle in atomizing disperse dyes. A comparison of nozzle characteristics (through put rates and atomizing steam pressures and rates) should be performed and their effect on quality (cloth test and Clarksville test) should be recorded. If the Lurgi nozzle is less severe on dispersions'than the Proctor & Schwartz nozzle, it may be possible to dry some products in the high capacity "Ponsol" No. 2 dryer that have previously failed to pass redispersion tests. In addition, these data will be used for experience for the Puerto Rican system. This product was chosen because it has never passed Clarksville tests and attempts have never been made to achieve Clarksville quality. Test Procedure: Charge 1 1. Install the Lurgi double fluid nozzle. 2. Start the atomizing steam pressure at 100 psig. Increase the slurry flow gradually until the maximum throughput is achieved. 3. Sample for % moisture, Clarksville and cloth test. 4. Lower steam pressure to 80 psig. and determine if atomiza tion is affected. If so, reduce slurry flow until maximum --flow is reached. 5. Repeat Step 3. 6. Repeat Steps 4 and 5 at 20 psig. steam pressure intervals. 7. Return the slurry flow and steam pressure to the condition which gave the best quality and highest throughput rate. Continue drying at this condition for the remainder of the charge. Charge 2 8. Install the 0.75" Proctor & Schwartz paste nozzle without the disperser. 9. Repeat Steps 2 and 7 above, starting at 140 psig. steam pressure and reducing in 20 psig. intervals. 10. Compare;the results with the Lurgi two fluid nozzle. DUP050467633