Document o9adpx6mjO78ZZZv2a2kqz89w

TECHNICAL SERVICE REPORT THE EVALUATION OF ASBESTOS T-135 AS A for by G. L, Dickson Group Manager - W. L. Carrick Project No. 14U3-N11 October 22, 1968 UNION CARBIDE CORPORATION Chemicals & Plastics Research and Development Department Niagara Falls, New York 1^302 A 1 7282 SUBJECT This report covers the paper machine evaluation of Asbestos T-135 at International Paper Company, Moss Point, Mississippi on October 8, 1968- The objective of this trial was to determine the corapatability of- asbestos in a typical coating grade paper furnish, and to evaluate it as a replacement for a titanium dioxide extender (Paper-Ad)* TRIAL RESULTS The results of this trial indicate that Asbestos T-135 can be used as a complete replacement for titanium dioxide extenders in coating-base paper furnishes. No problems were encountered during the trial concerning machine operations, and the substitution of Asbestos T-135 for Paper-Ad resulted in production with better brightness and equivalent opacity properties. Because of the short trial period involved, it was not feasible to monitor their wet-end system at this time. Thus, any increase in filler retention result ing from the addition of asbestos to the furnish was not ascertained. This aspect will, undoubtedly, be considered during a second machine trial which is now being scheduled by their people. DISCUSSION Asbestos T-135 was introduced into thi-s mill's No, 3 machine system during the production of a white coating base paper, The original intention was to add Asbestos T-135 with their clay slurry in the same ratio as their normal Paper-Ad and clay combination. This proved to be too viscous; therefore, the slurry was modified to overcome this problem. Their normal slurry combination and that used during the trial are as follows: Normal Clay/Paper-Ad Combination 200 lb, Paper-Ad 600 lb e Clay Made up with water to 533 gallons Clay/Asbestos T-135 Combination 120 lb. Asbestos T-135 680 lb. Clay Made up with water to 533 gallons A 17283 During; this trial there was no titanium dioxide added to the furnish except that which was present in their broke. The addition level of Paper-Ad/cLay combination approximated 12.8 GPM during the pre-trial period, while the T-135/clay slurry was added at a rate of 12.6 GPM. Although the cost of the latter is somewhat higher than their normal mixture, it is felt that the addition level of the T-135/clay was not optimized at this time. CONCLUSIONS The main trial objective, to determine the compatabillty of Asbestos T-135 in a coating-base stock furnish, was realized. Except for a minor problem involving high viscosity of the clay/Asbestos T-135 slurry, the trial ran smoothly. Production specifications were main tained during the trial and a moderate increase in brightness resultedBecause of the short trial period, no attempt was made at this time to optimize on the addition level of Asbestos T-135* or to determine its effect on filler retention. As both of these are important factors, they will undoubtedly be considered during a more lengthy trial which is now being scheduled. G- L: Dickson/bsn -2- ^ 57284 Reel Time 7:45 9:00 am. n Average 10:15 & f m t 12:15 p.m. 12:45 1:25 VI ff Average TABLE I Analyses of Reel Samples October 8, 1968 % Ash 5.01 4.63 4.82 4.90 4.67 4.77 4.46 4.70 % TiO? 0.09 0.11 0.10 0.08 0.05 0.09 0.08 0.08 % T-135 0 0 0 0.55 0.86 0.80 0.86 0.77 Opacity 88.6 87.0 87.8 87.2 87.6 87.4 88.0 87.6 Brightness 78,0 77,0 77,5 78,6 79,2 79,2 79,2 79,0 A 1728b UNION CARBIDE CORPORATION MINING l METALS DIVISION MILL TRIAL DATA SHEET October 8, 1968 I. COMPANY LOCATION AND DATE OF TRIAlInternatl,onal Paper Co.x Moss Point ,_ MlSS. II. COMPANY REPRESENTATIVES and TITLES Lewis Walker;____ Assistant_to----------------- Superintendent, Lowell Barfield: Assistant to P.M. Superintendent ill. UCC representatives John McReynolds, Gordon Dickson IV. trial OBJECTIVES (In order of impnrtnnf) To evaluate Asbestos T-135 as a replacement fQ.y .titanium . dioxide eatendags V. PRODUCT IDENTIFICATION Type of Prorlnrt Coatln^-base StockCoated JT4/No Grade Name_______ White Label Basis Weight 61.5 lb. (24 x 36-500) Daily Production 110 tOnSIh /hour 15,775 Total Daily Production of Mill (Tissue and Board) No. of Plys~ VI. MACHINE DESCRIPTION Type of MachineE.siirdglnler^- .with pressurized.,lieadbox Machine No----------------- 3[Cylinder) No. of Cylinders= Machine Speed .1QQQ__EEI2(Tissue) Reel Speed-- (Tissue) % Crepe------------=;_________ Wire Mesh Wire Width.-----------------------------------------------------Machine Trim Sire Press------ Vertical------------------------------ Cnlenders Double (0 ft ? nips) 1 A'7286 VII. AUXILIARY EQUIPMENT Refiner* Type loading (amp.) Saveall (Type)Flow Rate__ VIII. STOCK PREPARATION Continuous or Batch Type Beater and Capacity________________________________ No. of Beater Chests and Capacity_______________________ Machine Chest Capacity__________________________________ Stock Freeness (Mach. Chest and Stuff Box)______________ Headbox Consistency______________________________________ Makeup pHMachine pH. IX. FURNISH MAKEUP* Basis (Ib./ton, etc)________________________ Fumlch CencHtuenf Bleached Pine Kraft Bleached Hardwood Kraft Broke_______________ % _____ ____20 Foundi Rosin Size Alum Clay: Prp-Trlal Trial Papr_flH* Pro-t.71 Asbestos T-135: Trial 10 lb./ton 10 lb./ton 5.6 864 lb./hour 6.3 Q64 Ih./hour 1 tQ ?88 lh./hour 1.1 170 lb./hour * For board lyttemt Include fumlch for each medium - topllnor, underliner, filler, ond backliner. 2 A 17287 X. ASBESTOS ADDITION Pellet Repulper (Type). None Asbestos firT-135 openedLot No Point of AHWitiem Machine Chast Pounds of Asbestos Addedper ton BDFper beater per hour Per cent asbestos addition on BDF_______________________________________ XI. SUPPLEMENTARY INFORMATION Quality Control Data Record Stock Prep. Log Sampling (in order of importance) HHh t> taHnHon Triali Reel Stuff box Trialt Tray Water Vat TUwa and TawaJ Stuff box Reel Headbox Tray Stuff box Reel Headbox Saveall effluent Saveaii effluent Saveaii influent Saveall influent Identify samples by name, date, time Wet samples should approximate 500 ml. Weight of BD filter pad is required for all vat, tray, and saveall samples. 3 A 17288 XII. TRIAL LOG (Comments including changes in furnish and operating conditions) Tims _________________________________________________CmtinnH Pre-trial Trial Normal clay and Paper-Ad slurry added to furnish at 12.8 gal./minute. Slurry make-up 200 lb. Paper-Ad 600 lb. Clay Diluted to 533 gallons (Total Volume) Clay and Asbestos T-135 slurry added to furnish at 12.6 QPM Slurry Make-up 120 lb. Asbestos T-135 680 lb. Clay Diluted to 533 gallons (Total Volume) Recorded Witnessed and Understood by. 4 Date Date A 1 7289 SUBJECT This report covers the paper machine evaluation of Asbestos T-135 at International Paper Company, Moss Point, Mississippi on October 8, 1968, The objective of this trial was to determine the corapatability of asbestos in a typical coating grade paper furnish, and to evaluate it as a replacement for a titanium dioxide extender (Paper-Ad), TRIAL RESULTS The results of this trial indicate that Asbestos T-135 can be used as a complete replacement for titanium dioxide extenders in coating-base paper furnishes. No problems were encountered during the trial concerning machine operations, and the substitution of Asbestos T-135 for Paper-Ad resulted in production with better brightness and equivalent opacity properties. Because of the short trial period involved, it was not feasible to monitor their wet-end system at this time. Thus, any increase in filler retention result ing from the addition of asbestos to the furnish was not ascertained. This aspect will, undoubtedly, be considered during a second machine trial which is now being scheduled by their people. DISCUSSION Asbestos T-135 was Introduced Into thi-s mill's No. 3 machine system during the production of a white coating base paper. The original intention was to add Asbestos T-135 with their clay slurry in the same ratio as their normal Paper-Ad and clay combination. This proved to be too viscous; therefore, the slurry was modified to overcome this problem. Their normal slurry combination and that used during the trial are as follows: Normal Clay/Paper-Ad Combination 200 lb, Paper-Ad 600 lb. Clay Made up with water to 533 gallons Clay/Asbestos T-135 Combination 120 lb. Asbestos T-135 680 lb. Clay Made up with water to 533 gallons A 17283 During; this trial there was no titanium dioxide added to the furn: except that which was present in their broke. The addition level Paper-Ad/clay combination approximated 12,8 GPM during the pre-tr: period, while the T-135/clay slurry was added at a rate of 12-6 G! Although the cost of the latter is somewhat higher than their nor: mixture, it is felt that the addition level of the T-135/clay was optimized at this time. CONCLUSIONS The main trial objective, to determine the compatability of Asbestos T-135 in a coating-base stock furnish, was realized, Exc for a minor problem involving high viscosity of the clay/Asbestos slurry, the trial ran smoothly. Production specifications were m; tained during the trial and a moderate increase in brightness resi Because of the short trial period, no attempt was made at this ti: to optimize on the addition level of Asbestos T-135* or to determ: its effect on filler retention- As both of these are important f; they will undoubtedly be considered during a more lengthy trial w! is now being scheduled. G; L, Dickson/bsn -2- Ai7284 je- JMZ Pice. Mr- J. S. McReynolds (4) 960 Tifton Drive Baton Rouge, La. 70815 October 23, 1968 See Attached Distribution International Paper Company Moss Point, Mississippi Asbestos T-135 Mill Trial The attached report contains the data obtained from the paper machine evaluation of Asbestos T-135 at subject mill on October 8, The main purpose of the trial was to determine the compatability of T-135 in their system and to evaluate it as a replacement for PaperAd- As it appeared successful from both aspects, they are now plan ning on running a second trial which will be of longer duration. It would be desirable if we could receive wet-end samples from this next trial, as we were unable to do so during the present one. GLD/bsn Attach, A 1 7281