Document r7yn0j5zmjmjjkvDg5RLNyjE

OKCj- i Monsanto Chemicals-Plastics CHEMICAL AIDS IN 7A DISTILLATION PROBLEM? 1 Monsanto Taehnteof Data Shaft February 26, 1954 ______ \^4______ Monsanto Chemical Company, Organic Chtmicals Division, St. Louis 1, Mo. AROCLORS*, HB-40% HB-20% PHENYLCYCLOHEXANE, BICYCLOHEXYL All of the above materials are Monsanto chemicals which can be of value in certain distillation problems. These materials are high boiling solvents possessing good heat stability. The AROCLORS (a series of chlorinated polyphenyls) are especially noted for their chemical inertness, The other chemicals may also serve as inert solvents. Consequently, these materials all find use as distillation aids where the lower boiling material is subject to decomposition from localized overheating, and in cases where distillation residues are resinous or solid materials which are difficult to clean out of the still pot. The Monsanto chemicals listed also find considerable application as inert media for many chemical reactions. An example of the value of such distillation aids is a case where a product distilling at about 78C. at 40 mm. Hg. was separated without fractionation from A ROCLOR 1242 which, at the same pressure, boils at 210C. Another product boiling at 100C. at 2 mm. Hg. required only moderate fractionation to separate it from AROCLOR 1242 boiling at 135C. (at 2 mm. Hg.). Which material to use in a given situation can be determined from the table of properties which appears on the next page. When reduced pressures are involved, further data may be obtained upon request. AROCLOR products 1242, 1248, 1254 and 1260 are liquids with progressively in creasing boiling points. These liquids act as a stable heel in the still and allow all of the desired end product to be recovered. In cases where the distillation residue normally tends to polymerize into gummy materials or to decompose into solids, the liquid AROCLOR compounds can be used to keep the residue as a free-flowing fluid for easier removal. Also, by allowing better beat transfer in the fluid, excessive decomposition and product loss can be minimized. Mf. 0J. P*t. OK. The Infeimetlan nWUnil In M* bullMir li, la at* Mil KmwIH|*. hue and fttewrata, but H eetammaarfatlane ar au(|ea<lane Ire rnada without (uarenter. tbit* Iha canUltkene at uaa are heyand aw antral. Tha Manaanla ChaaUael Campany dieclaime any liability inttrrad In aawwcllaa with tha uaa al tfcaae data ar aivaaettawe, Piwthanaora, nolhint contained ha rain shall ha canetruad aa a rareaaaendalien la uaa any preUuct in tanfllct with aalailna palenle revering any material ar ill uta. 3s gi do & B ^ go O i/i m nZ t V) O 70 Qi TOWOLDMON0038173 WATER_PCB-00022642 In addition to the liquid AROCLOR products, Monsanto offers AROCLOR 5460, a resinous solid which has been used to plasticize solid still residues to facilitate re moval. This resin cannot be recovered and is discarded with the residue. From 25% to 50% of AROCLOR 5460, based on total residue weight, will satisfactorily plas ticize most such residues. When used as distillation aids, the liquid AROCLOR compounds can be reused several times and either discarded or distilled to restore their original refined state. Used as stable solvents for reactions conducted in an inert liquid phase, the liquid AROCLOR compounds perform very well. Here again, the liquids can usually be used several times before discarding or re-purifying. The other chemicals listed are included to offer a wider choice of boiling points both at normal and at reduced pressures. The table below will help to choose the correct compound for your reaction or distillation situation. Your Monsanto representative will be glad to discuss specific problems and to provide or obtain other data needed. (Viluas sra Approilmata] Phanyleyclohtuna Ileyelahaiyl AROCLOR 1242 AROCLOR AROCLOR AROCLOR 1248 1254 1260 HB-40 Hfi-20 Distillation Rang* 239-244*0 238-242*0 )25'360*C. 340-375*0 365-390*0 385-420*0 340-396*0 312-370*0 Paur Point 2 5-5.3*0 1-3*0 minus 19*C. minus 7*0 10*0 31*0 minus 25*0 minus 34*0 Ylaaoilty (SUS at 100-F.) >1.2 34.2 80-93 185-240 1800-2500 72-78 144 (at 210*F.) 55.7 Spactflc Gravity 0.9)8 at 0.988 at 1.380 at 1.445 at 1.538 at 1.620 at 1.004 at 0.971 25715.6*0. 25715.6*0 25725*0 25725*0 25725*0 25725*0 25713*0 25715*0 For further Information, contact MONSANTO CHEMICAL COMPANY Organic Chamicali Divlaion BOO North Twelfth Boulevard St. Louia 1, Miaaouri PrtnKd to US-A. 0613965 I TOWOLDMON0038174 WATER_PCB-00022643 --V Monsanto Chemicals'"Plastics KA____ I CHEMICAL AIDS IN DIStiLLSTION PROBLEMS ----------------- Monsanto Technicol Doto Sheaf Fabruory 16, 1954 Monsanto Chemical Company, Organic Chemicals Division, St. Louis l,Mo. AROCLORS\ HBA0% f/B-20% PHENYLCYCLOHEXANE, BICYCLOHEXYL All of the above materials are Monsanto chemicals which can be of value in certain distillation problems. These materials are high boiling solvents possessing good heat stability. The AROCLORS (a series of chlorinated polyphenyls) are especially noted for their chemical inertness. The other chemicals may also serve as inert solvents. Consequently, these materials all find use as distillation aids where the lower boiling material is subject to decomposition from localized overheating, and in cases where distillation residues are resinous or solid materials which are difficult to clean out of the still pot. The Monsanto chemicals listed also find considerable application as inert media for many chemical reactions. An example of the value of such distillation aids is a case where a product distilling at about 78C. at 40 mm. Hg. was separated without fractionation from A ROCLOR 1242 which, at the same pressure, boils at 210C. Another product boiling at 100C. at 2 mm. Hg. required only moderate fractionation to separate it from A ROCLOR 1242 boiling at 135C. (at 2 mm. Hg.). Which material to use in a given situation can be determined from the table of properties which appears on the next page. When reduced pressures are involved, further data may be obtained upon request. AROCLOR products 1242, 1248, 1254 and 1260 are liquids with progressively in creasing boiling points. These liquids act as a stable heel in the still and allow all of the desired end product to be recovered. In cases where the distillation residue normally tends to polymerize into gummy materials or to decompose into solids, the liquid AROCLOR compounds can be used to keep the residue as a free-flowing fluid for easier removal. Also, by allowing better heat transfer in the fluid, excessive decomposition and product loss can be minimized. O |s Es jn & -o> O ist m mZ t o I Th* inloHnatien tomainad in tfcia Mlntln <. a aur baal kno<*ld'a. kyi and aecurnl*. bu' nil aaooranioaWlona or ara wltKout fuaranlt*, oinca Iha canditietM ai uaa art bayand aur eontral. Tha Uanaaaao ChaMiaal CampMiy diaclaiaia any liability Incurwd in aaraetien with tha vat af lhaaa data ar aia"aauana. Fvthanaara. nothin' eamainad haraln ahail ba aanairwad aa a raoaaabandaUafl la aat any Fraduet in eantlMi with aiailnt paianta rowin' any malarial ar Ita * 0613936 TOWOLDMON0038175 WATER_PCB-00022644 In addition to the liquid A HOCLOR products, Monsanto offers AROCLOR 5460, a resinous solid which has been used to plasticize solid still residues to facilitate re moval, This resin cannot be recovered and is discarded with the residue. From 25% to 30% of AROCLOR 5460, based on total residue weight, will satisfactorily plas ticize most such residues. When used as distillation aids, the liquid AROCLOR compounds can be reused several times and either discarded or distilled to restore their original refined state. Used as stable solvents for reactions conducted in an inert liquid phase, the liquid AROCLOR compounds perform very well. Here again, the liquids can usually be used several times before discarding or re-purifying. The other chemicals listed are included to offer a wider choice of boiling points both at normal and at reduced pressures. The table below will help to choose the correct compound for your reaction or distillation situation. Vour Monsanto representative will be glad to discuss specific problems and to provide or obtain other data needed. (Valuai ara Approximate) Phonylcyclehaxana IlcycloKo.yl AROCLOR 1242 AROCLOR AROCLOR AROCLOR 1248 12S4 1260 HR-40 HR-20 Distillation Rang* 239-244*C. 238-242*C. 325-360'C. 340-375C. 365-390'C. 385-420'C 340-J96"C. J12-370*C. fovr Point 2.5-5.5'C. l-3*C. minus 19C. minus 7C. 10C. 31C. minus 25C. minus 54C. Viscosity (SUS ot I00*F.) 31.2 34.2 80-93 185-240 1800-2500 72-78 (at 210*P.) 144 53.7 Specific Gravity 0.938 at 0.988 at 1.380 at 25/lS.6*C. 25V15.*C. 25*/25C. 1.445 at 25/25*C. 1.538 at 25/25*C. 1.620 at 25*/25*C. 1.004 at 25*/15*C. 0.971 25*/15*C. For furthor Information, contact MONSANTO CHEMICAL COMPANY Organic Chemicals Division 800 North Twelfth Boulevard Sf. Leuit 1, Missouri 06139B7 TOWOLDMON0038176 WATER_PCB-00022645