Document 10Q4M6epBpnBOy9wvqR8QBwvm

INTER-ORGANIZATION TO: ATTENTION: FROM: DA TE: SUBJECT: DISTRIBUTION E. K. Kolinek May 31, 1974 Removal Of Vinyl Chloride Monomer from PVC Reference: 1. Memo to Distribution from E. K. Koli'nek dated 5/17/74,. "VCM in PVC" 2. Memo to A. J. Urbanic from R. M, Griffith dated 5/29/74, "Some Chemical Engineering Guidelines for Residual Vinyl Chloride Monomer Removal from PVC Particles" A meeting was held on May 30, 1974, at the Ashtabula plant. The folleving people were present: J. R. Mudd, W. J. Van Essen, A. J. Urbanic, H. E. Jewett, T. Allen, J. L. Cooper, G. A. Cabaniss, R. M. Griffith, R. E. Bingham, and H. Graff. The following is a brief summary of the meeting: 1. A request will be made to increase the Ashtabula processing temperatures to "some higher temperature level". At the present time, the processing temperatures are limited to 140F. and exposure time is limited to keep from having the resin "pink". I will discuss this subject with W, C. Douglas, H. Schick, J. M. Gyenge, and H. E. Jewett to determine the experimental to be tested at higher temperature levels to aid in the removal of vinyl chloride. We will attempt to have resin "from higher temperatures" produced by June 13th for Plastics plant evaluation. .2 Post Stabilization Ingredients to Reduce the Possibility of "Pinking" V a. Alpha Methyl Styrene J. L. Cooper has done some work in the Pilot Plant which shows that adding this ingredient does assist in the removal of vinyl chloride from the resin. Further Pilot Plant experiments need to be conducted to set the level of Alpha Methyl Styrene for a plant trial. The recommendation will be made before June 6, and a plant trial will be scheduled before June 13. b. It was suggested that certain other materials such as Octyl Tin might keep the resin from "pinking". rr0 FORM J BOND G'ENc 006934 "BETTER Service Is Our Business* 1, DISTRIBUTION May 31, 1974 Page Two 3. A material balance should be run around the entire operation at Ashtabula to determine the level of vinyl chloride remaining in the product at each stage. It was decided that material balance will be run on the following products: Vygen 120 Vygen 120E Vygen 313 This information will be completed before June 13. 4. Low Conversion Resin There is some limited data which shows that Vygen 120E, which is a low conversion, does strip easier than regular Vygen 120. For this reason, it is included in Item 3 above for an in-depth study. 5. Addition of Heptane It is thought that adding Heptane to the resin will allow the Heptane to penetrate the particle and assist in removal of vinyl chloride from the resin particle. Heptane will be added at each of the following areas in a study of this variable: a. At the time of initiation of polymerization. b. At some point near 70-80% conversion. c. In the slurry tank. One drum of material is at the plant. Two additional drums of material need to be ordered for all the trials. As many of the above variables will be run as the Heptane allows before June 13. 6. Stripping a. Pieco The Pilot Plant has had to rebuild certain portions of the Pieco in order to better transport the resin. Trials should start May 31. b. Batch Stripping The Pilot Plant will consider several variables such as time, temperature, steam flow, etc. and make recommendations for various trials in the Ashtabula slurry tanks. It is generally thought that an increase from 15-20 minutes stripping at the present to one hour will significantly reduce the level of vinyl chloride in the resin. The problem is temperature time dependent as related to "pinking" of the resin. GENC 006935 DISTRIBUTION May 31, 1974 Page Three 7. Study Additives for Aid of Monomer Removal R & D will work on this item on a high-priority basis to determine if they can offer any recommendations for plant trials. 8. Unusual techniques of monomer removal are elimination. This is a long-term project for R & D, and they will consider various ideas such as: a. Plasma reactions b. Using radiation to complete the reaction. c. Using microwave energy to increase the kinetic energy of the vinyl chloride to drive it out of the particle. 9. Solvent Extraction R & D will consider this concept but this also is a long-term possibility for a solution. 10. Particle Morphology The Dow technology purchased several years ago relates to this concept, and at the time when this technology was purchased, it was decided to do as little work as possible to put the technology in practice. Dow stated in their information provided to us that the technology was not optimized, and we have not spent the time optimizing the technology. It was generally concluded that a research program should be considered for extending the Dow technology (optimization) to determine if there are other materials other than Span 60 to use. Again, this goes back to the data that the 300 Series resin has a significantly lower residual vinyl chloride monomer level. Before any work is done on this area, a review should be made of J. S. Musalem's data from the Ashtabula Pilot Plant which paralleled the Dow technology. There was verbal data presented by Hank Graff which Will be published soon regarding the vinyl chloride level at various points in the process. The following items are from the agenda of our May 16th meeting, and this relates to their status: 1. Limit Polymerization Temperature from T Max Data presented at the meeting showed that this does not appear to be a factor relating to the residual vinyl chloride monomer. This has been dropped from further consideration. GENC 00693^ DISTRIBUTION May 31, 1974 Pago Four 4. Consider Reduction of Conversion This is still under consideration in the area of running material balances on Vygen 120 and Vygen 120E. The economics of this change can be obtained from the standards. It may also reduce the capacity of the plant. No figures were discussed at the meeting. 5. Prestabilized Resin to Allow Higher Processing Temperatures at Ashtabula a. This was discussed in a section above regarding the Alpha Methyl Styrene. b. It was stated that Rob intech may be using a proprietary technique similar to this. An attempt will be made to find out what they are doing. This is related to the Octyl Tin item discussed above. 6. Stripping a. Joint Program with Atlantic Tubing Atlantic Tubing has not completed their study. It may be necessary for us to send someone to make sure we obtain data of interest to us. This will be done if necessary. b. Other parts of this section are discussed above, 7. Silo a. Air Purging of the Ashtabula Silos Hank Graff reported on some of the data and this will be published based on their laboratory experiments. b. Silo Studies It has not been possible to schedule this wdrk. An attempt will be made to obtain this data before the next meeting. 8. Drying a. D. L. Levinson is obtaining some information from Nichols regarding work in Europe by PVC manufacturers on removal of vinyl chloride. b. Louisville Dryers We will schedule trials at Louisville to run the fluidized bed and rotary dryer equipment as soon as we can get scheduled. At the present time, the earliest we can get in is the week of June 24. This is not a short term answer but may be a long-term consideration if the fluidized bed and/or rotary dryer will remove more vinyl chloride from the resin. GENC 006937 DISTRIBUTION May 31, 1974 Page Five The remainder of the items on the agenda were discussed in various sections above. EKK:1jb Distribution: T, Allen R. E. Bingham G. A. Cabaniss J. L. Cooper M. G. Glenn (5) H. Graff R. M. Griffith H. E. Jewett J. R. Mudd A. J. Urbanic W. J. Van Essen J. L. Wetzel E. K. Kolinek 6ENC 006938 VJ l, &7H 73ft are rl J73 , TUT m, 3`JMfslB37 71 7, 474 1,717 6f^:>7 cons of 0 on Mid lilch ?<3A cua[\i of omer v\ce OftAll- d by indd *-term iCr 31. 1973 [VU 1,2'Jjn 13487 !,3m 3 com} early yearn induced si units of all *ogram. dlcated 1 cost,*5 .-111 de.-isncies PROPOSED RULES 1S30:1 u^oclatcd with increased volume, Improve) production t.iM'hnltjUfs and the performance of repetitive1 tar,ks (the learning curve con cept) ai e realized. Recovery of deferred production and other start-up costs is dependent on the number of aircraft ultimately sold and actual selling price and production cost3 related to future transactions, Rules significantly under esti mates or costs significantly over estimates could result in the realization of substantial ludfteg on the program in future years. Reali sation of approximately $721,000 of the groas commercial aircraft inventories at Decem ber '31, 1074 is dependent 0x1 receipt of future firm orders. Based on studies made by and on behalf of the Company, management believe# there exists for this aircraft a market for over 250 units, including deliveries to date, with pro duction and deliveries continulnR at a nor mal rate to at least 1980. At December 31, 1974, 117 alrcralt had been delivered under the program, and the backlog included 64 Arm unfilled orders and options for 43 units. During 1974, $251,000 of general and ad ministrative expense and $33,000 of research and development expense were Incurred and charged to inventories. Comparable amounts in 1973 were $238,000 and $42,000, respec* tivciy. Title to certain Inventories and contracts in progress is vested in the United States Government pursuant to contract provisions related to progress payments. Such amounts were $1,743,000 and $1,347,000 at December 3i, 1974 and 1973, respectively, (PR Doc,74--11904 Filed 5 23-74;S:45 am] DEPARTMENT OF LABOR Occupational Safety and Health Administration [29 CFR Part 1910] [Docket OSH-38] VINYL CHLORIDE; OCCUPATIONAL EXPOSURE STANDARD Hearing On May 10, 1974, notice of proposed rulemaking with regard to a permanent standard for occupational exposure to ty find Health Act of 1970 <64 St.it. 1593. vinyl chloride was published in the Fed 1596, 1599; 29 U S C. 655, 657!, Scci eiarv eral Register (39 FR 16896). The notice of Labor's Order No. 12-71 (36 FR 87541 provides an opportunity for public par and 29 CFR Part 1911, the notice of the ticipation in the proceeding, by means proposed rulemaking on vinyl chloride of written submissions to be mailed to published on May 10, 1974 at 39 FR tire given address, postmarked no later 16896, is hereby amended in the follow than June 10, 1974. The notice also per ing respects; (1) The part of the notice mits interested persons to file objections concerning the filing of objections and to the proposed standard set out In the requests for hearing, in the third full notice and request a hearing thereon. paragraph of the middle column of page The objections must specify the pro 16897 of the May 10 issue of the Federat. visions of the proposed standnrd to Register, Is withdrawn; and <2) In lieu Which objections are made, state the thereof the following ParaGraphs aie grounds for the objections, be accom added: panied by a summary of the evidence to Data, views, and arguments concerning the be adduced at the requested hearing, proposed standard will be received by an ad and must be postmarked no later than ministrative law Judge, to lw appointed by June 10, 1974. th^,Ch|cf Admlplstratfie Law Judge oi the Informal contacts with Occupational Mijtabb!*,M:aU' hifminm .t1 Safety and Health Administration staff have disclosed widespread interest in the .:tog;tdb^ii;>ff i}i#o,*.tn; Jua 26, *<m in u.e Departmental Auditorium on Constitution Avenue, between 12th * 14th Streets NW , proceeding, a probability of requests for Washington, D.C. a hearing, and an alleged need for more The hearing shall be conducted In acemd- time for the submission of written com ahee with the rules of procedure In 2!) CFR ments and the formulation of objections Part 1911. Any Interested person desiring in in accordance with the requirements of the notice. Accordingly, It has been decided to waive the requirements lor objections and request for a hearing thereon and participate at the hearing must file a notice of Intention to appear with Ms, Joanne Good en, Attn: Docket OSH 36, Occupallou.il Safety and Health Administration, 172(1 Id Street, NW , Room 200, t),W, Department, o! Labor, Washington, D C. 20210 no later than Instead to set for hearing the entire pro Julia 17, 1974. A notice must state the mime posed standnrd, set forth in the May 10 and address of the person to appear, the ca notice. It is hoped that this decision will: pacity in which he wUl appear, and the ap (1) Eliminate the possible difficulty of formulating appropriate objections with in the short period of time fixed in the notice; (2) permit full participation at proximate amount of time required for his presentation. In addition, to the extent prac ticable, the notice should contain a general statement of the position to be taken alih respect to any provision of the proposed the hearing, without limitation as to Is standard, and of the evidence to be adduced sues; and (3) expedite the proceeding, In support of the position. in view of the six-month provision In sec tion 6(c) of the Wllliams-Steiger Occu pational Safety and Health Act of 1970, and the expectation that a hearing would In all other respects, the May 10. 1974 notice of proposed rulemaking remains unchanged. Signed this 22d day of May 1974. be requested and scheduled anyway. Therefore, pursuant to sections 6(b), John H. Stendkr, Assistant Secretary of Labor. 6(c), and 8(c) of the Occupational Safe [FR Doc. 74-12183 Filed 5-23-74,11 13 am No. 102-- PI. I------ S KDERAI REGISTER, VOL 39, NO. 102--FRIDAY, MAY 24, 1974 xvinafiiriiniiiK iT<irmnftTiinT*\tiTr r " --