Document R2wn1d6vaq0d7JXGgpy4vyRE

E. I. DU PONT DE NEMOURS & COMPANY 256 YANDERPOOL STREET NEWARK, NEW JERSEY Serial No. KN-67-2 Copy No. 14 r et ur n t o JACKSON LABORATORY FILE ROOM NEWARK PLANT PIGMENT COLOR RESEARCH REPORT GOLDEN "AFFLAIR" - NF-128-D \ Period Covered October, 1965 - December, 1966 FILE.- 218 DATE: 1/18/67 N33680 NJ 28626 KN-67-2 Copy No. 1. Numerical Pile 2. Research Office Pile No. 218 3. Library Pile No. 218 4. M. Hunt/E. Gonick, Pigments, Wilra. 5. N. G. Fisher, Central Research, Wilm. 6. P. J. Monahan (X Pile) 7. W, S. Struve/A. A. Brizzolara/Library 8. H. R. Linton, Newark 9. E. P. KLenke, Newark 10. R. H. Wetzel/H. H. Gyorgy, Pigts., Newport 11. Extra 12. Extra 13. Extra 14. Extra 15. Extra 16. Extra NEWARK PLANT PIGMENT COLOR RESEARCH REPORT TITLES GOLDEN "AFFLAIR" - NF-128-D PERIOD COVERED; October, 1965 - December, 1966 ABSTRACT: This report covers the preparation for and the manufacture of the first plant batch of HF-128-D. RETURN TO JACKSON LABORATORY FILE ROOM DUP050027065 TABLE Off CONTENTS INTRODUCTION SUMMARY AND CONCLUSIONS PATENT STATUS PROCESSING DETAILS A. Process Plow Sheet: (Exhibit A) B. Mica Selection and Processing C. Hydrolysis, Pressing, and Washing D. Drying E. Classification before Calcination F. Calcination G. Final Classification H rlN N W W Page 1 1 1 DUP050027066 INTRODUCTION This report covers the preparations for and the manufacture of the first plant batch of NF-128-D, based upon the lab and Semi-Works data as reported in KN-66-7. SUMMARY AND CONCLUSIONS No significant operating problems were encountered and material fully equal to goal was produced in the plant. Dry instead of wet classification was used prior to calcination for quality reasons; wet classification will be studied later, PATENT STATUS The product in this report is covered by the existing "Afflair" patent (U.S. 3,087,828). PROCESSING DETAILS A, Process Plow Sheet - see Exhibit A B* Mica Selection and Processing PA-1 type mica of #7 + color was selected and a blend made (l) of 4200# of #10 color and 1400# of #2 color. This blend was then Hurricane classified to remove -5p, material (see XOA-5, attached), based upon MEP-1037-7. A yield of 60.5$ was achieved in the plant, which was essentially equal to the 67$ for MEP-1037-7, A lab hydro (104-65H) made from the plant classified mica checked the control very well. Approximately 100# each of the mica blend and the classified mica blend was sent to Newark for storage as reference materials. These were given Semi-Works lot numbers as follows: SW-00932 and 00934, blend #1 and #2, respectively SW-00921 classified blend C. Hydrolysis, Pressing, and Washing (See XOA-6, attached) A 5420# hydro was made (Lot 28-1) using 3500# of the classified mica blend, and 1952# of TiOa (no SbaOs added). The conditions were essentially the same as for NF-103-D with the following exceptions: 1. No SbaQa added. 2. Slightly slower TiOa addition rate. 3. Controlled heat up rate. 4. No water added during the boil period. 5. End point determined by color. No problems were encountered, and the vat control checked the lab material very well. The batch pressed and washed rapidly. DUP050027067 D. Drying -2 - The plant presscake was dried in the #14 Building Semi-Works Gordon Davis tray drier (low velocity air flow). The pans were loaded to a depth of - 2", and the material was left in the drier for 48 hours to insure complete drying. A shorter cycle may he possible. No unusual dusting was en countered during drying, even though the trays were uncovered. E. Glassification Before Calcination (See XOA-7 attached) The dried material was Hurricane classified as for MEP-1085-5 and 1189-2 (plant material used), and a yield of 64.6$ achieved (compared with 62.5$ for MEP-1189-2). Evaluation of this material (cut 21, "Rejects") indicated it to be quite satisfactory. F. Calcination The entire 3,288# of cut 21 was rewet with water to ca. 50$ solids and then sent to Edge Moor for calcination. Temperature resistance data (run at Newport) indicated a re sistance range of 18-30 for goal quality. The kiln was run at a temperature set point of 950C. and 8 drums of material fed. The resistance of the product ranged from 1-15, primarily because of feed control problems. The temperature was raised to 975C. and the run finished at this setting; the resistance ranging from 18-30. Attached (Exhibit B) is a tabulation of the data collected during the calcination. A mix of the 950C. material (mix A) was very close to goal; a mix of the 975C. material (mix B; was somewhat more golden than goal. It was agreed that the two products be combined, and a plant mix was made. G. Pinal Classification (see XOA-8, attached) REFERENCES Letter HHG to DM, attached NB-104 XOA-5, 6, 7, 8 Vinyl series - 66-342-C Paint series - 66-341-A DUP050027068 ffix 74 EXHIBIT A 4200# PA-1 [#10 Color) 1400# PA-1 \#Z " )' Class.Mica TiOa 3500# 1952 15452# goal (A)NP-12 8-0 DUP050027069 EXHIBIT B Product Drum # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Set Temp. C. P. C. Feed'* #/l5 Min. Color Resist. vs Goal 950 it ti it M 35 9p Very erratic it ii it ii 1 1 8 1 1 Not eval. ca = ca *=* s It, red ca it II 9759 tl ii H 11 II It tl II II IJ II II II II II It 120(7) 12n 0 ii it ti it U it it ii ii ti ii n ii ti ti it 3 ca =* 4 ca = 2 ca *a 15 vs better ia it ii 13 ii it 3 8 ti it it 18 IT 11 20 II It 28 II II 20 II II 20 II 11 27 It It 24 II It 18 II II 20 ti 11 24 11 II 30 II 11 Remarks Vibrating feeder used ii it ii tl It 1! II 11 II Started shovel feeding (see results in drum 7 or 8) Raised temp.- Shov. at drum 9(?) pH 7.6 pH 6.2 pH 8.5 Interrupted feed shov. in drum 13. pH 6.9 pH 8.2 pH 8.1 P Mix A - Drums # 9,10,11,14,15,16,17, 18,19,20,21,22,23, 24 Mix B - Drums # 3,6,7,8,12,13 DUP050Q27070