Alcohol ethylene

Compounds. Part XIV. A Study of the Reactions of the Readily Available Ethynyl-ethylenic Alcohol, Pent-2-en-4-yn-l-ol. J. Chem. Soc. [London] 1947, 1586. 

The ternary azeotrope is liquefied, which causes it to phase separate. That is, it separates into two layers of liquid, one of benzene plus ethylene alcohol and one of water. The benzene/ethyl alcohol is drawn off and split in another column to create pure ethyl alcohol and a benzene recycle stream. 

Synonyms 1,2 Dihydroxyethane 1,2-ethanediol ethylene alcohol ethylene dihydrate... 

Unsaturated ethers. The efficient insertion of carboalkoxycarbenes into the O—H bond of alcohols catalyzed by Rh(II) acetate (5, 571-572) extends to reactions with unsaturated alcohols. For this reaction copper(II) triflate is usually comparable to rhodium(II) alkanoates. Insertion predominates over cyclopropanation in the case of ethylenic alcohols. In reactions with acetylenic alcohols, cyclopropenation can predominate over insertion because of steric effects, as in reactions of HC=CC(CH3)2OH where the insertion/addition ratio is 36 56. 

Shown in Table 8.6 arc some literature data on the use of dense membrane reactors for liquid- or multi-phase catalytic reactions. Compared to gas/vapor phase application studies, these investigations are relatively few in number. Most of them involve hydrogenation reactions of various chemicals such as acetylenic or ethylenic alcohols, acetone, butynediol, cyclohexane, dehydrolinalool, phenylacetylene and quinone. As expected, the majority of the materials adopted as membrane reactors are palladium alloy membranes. High selectivities or yields are observed in many cases. A higher conversion than that in a conventional reactor is found in a few cases. 

Hydrogenation of acetylenic/ethylenic alcohols (T=100-130 C) Pd-Ru 100-fold activity increase than conventional Raney catalysts Gryaznov et al., 1982... 

The kinetic and stereochemical results on 2-methylenecyclohexanol derivatives have been utilized to interpret the stereoselective epoxidation of aliphatic a-ethylene-alcohols. The main product in the oxidation of 4-a-chloro-3(10)-carene 16 is 17 (Eq. 7). ... 

A.N. Karavanov and V.M. Gryaznov, The liquid-phase hydrogenation of acetylenic and ethylenic alcohols on the membrane catalysts from the palladium-nickel and palladium-nithenium binary alloys, Kinetika i Kataliz 25 69 (1984). 

UNSATURATED ALCOHOLS, ALDEHYDES AND ACIDS Higher Ethylene Alcohols... 

Example Ethylene Alcohol (Glycol) from Ethylene Bromide (a) Conversion of Ethylene Bromide into Glycoldiacetate... 

ETHYLENE ALCOHOL (107-21-1) CjH(j02 Combustible liquid [explosion limits in air (vol %) 3.2 to uel unknown flash point 231°F/111°C autoignition temp 775°F/413°C Fire Rating 1]. Violent reaction with oxidizers and oxidizing acids, sulfuric acid. Forms explosive mixture with sodium perchlorate. Incompatible with strong acids, caustics, aliphatic amines, isocyanates, chlorosulfonic acid, oleum, potassium bichromate, phosphorus pentasulfide, sodium chlorite. On small fires, use dry chemical powder (such as Purple-K-Powder), alcohol-resistant foam, or CO2 extinguishers. 

Ethylene glycol (1,2-ethanediol) EG 107-21-1 glycol ethylene alcohol... 

We try to generalize the reaction to different a-acethylenic alcohols and a-ethylenic alcohols which are known to give good results in liquid phase [3,19],... 

OTHER names Ethylene alcohol monoethylene glycol... 

SYNONYMS 1,2-dihydroxyethane, 1,2-ethanediol, glycol alcohol, monoethylene glycol, ethylene alcohol, ethylene dihydrate. 

Figure 6 shows the projected selling price for a 15% return on investment after taxes for the 50,000.000 gal/yr Gulf cellulose alcohol plant and for fermentation corn and synthetic ethylene-alcohol plants of the same capacity (Table VI). The ethylene costs are escalated at 9%, per industry projections, cellulosics at 7%. and according to USDA projections, corn at 5%. Feedstock costs used as a basis for these graphs are (starting 1983 as in Tables V and VI) MSW 14.00/oven-dried ton (ODT), SMW 21.00/ODT, Pulp mill wastes 14.00/ODT, Ethylene 0.18/pound and corn 3.00/bushel. Thus, the total feedstock cost per gallon of ethanol produced is 0,104 in the case of cellulose. 0.75 for ethylene, and 1.20 for corn. By-product credits used escalated from prices listed in 1983 at a 7% rate. 

The Secunda process scheme was conceived to maximize gasoline production - therefore, it includes hydroprocessing and catalytic reformers similar to those used in petroleum refineries. Due to the scale of operation, it includes facilities for the recovered of ethylene, alcohols, ketones, phenols, ammonia and other chemical products. Its twin plant at the same location, Sasol 3, has a very similar configuration. At present all the original Synthol reactors have been replaced by the more efficient Sasol Advanced Synthol (SAS) reactors, with capacities of up to 20 000 bpd per train. 

---