Wacker surfactant

The industrial Wacker process is carried out in aqueous hydrochloric acid using PdClj/CuCh as the catalyst under oxygen pressure. The oxidation of higher terminal alkenes under the same conditions is slow and sometimes accompanied by undesired by-products formed by the chlorination of carbonyl com-poimds by CuCh, and isomerization of double bonds. Earlier examples of oxidation of various alkenes, mainly in aqueous solutions, have been tabulated.The pseudo-first-order rate constants for oxidation of various alkenes, relative to the value for cycloheptene, with PdCb in the presence of benzoquinone in aqueous solution have been rqwrted. An accelerating effect of surfactants such as sodium lauryl sulfate on the stoichiometric oxidation of higher alkenes in an aqueous solution has been reported. 

Note that, in some studies, poly(ethylene oxide) oligomers, micelle-forming surfactants derived from them, and their complexes were used to perform such reactions in aqueous and alcohol solutions as hydroformylation [31-33], Wacker oxidation [34,35], hydroxylation of aromatic compounds [36-38], carbon dioxide hydrogenation [39], and epoxidation [40]. It was shown that using poly(ethylene oxide)s substantially increases the reaction rate and, in some cases, allows us to separate a metal complex containing oligo(ethylene oxide) [31,40]. 

Thickener L 75 N thickener, aliphatic systems Bentone SD-1 thickener, alkaline latex Alcogum VEP-I Alcogum VEP-II thickener, alkaline systems DeTHOXACIDS-8 thickener, alkyd paints Dehysol Solthlx 250 Wacker HDK HI 5 Wacker HDK T30 Wacker HDK T40 thickener, alkyds Bentone 38V Bentone SD-3 Dlhydrogenated tallow benzylmonium hectorite Rllanit HT-EZ thickener, anionic liq. surfactants Tylose HI00000YP2 thickener, anionic systems Tafigel AP1/1... 

Wacker-Belsil DM 100000 [Wacker-Chemie GmbH http //www.wacker.de], WorleeAdd 374 [Worlee-Chemie http //www.worlee.de] Dimethicone copolyol CAS 64365-23-7 68937-54-2 68938-54-5 Synonyms Dimethyl methyl (polyethylene oxide) siloxane Dimethylsiloxane/glycol copolymer Polyoxyethylene-grafted polydimethylsiloxane Polysiloxane polyether copolymer Siloxanes and silicones, dimethyl, hydroxy-terminated, ethoxylated propoxylated Classification Silicone glycol surfactant Definition Polymer of dimethylsiloxane with polyoxyethylene and/or polyoxypropylene side chains... 

Catalytic hydration of unsaturated bonds is to a certain extent a complementary process to Wacker-type oxidation. Hydration catalyzed by transition-metal complexes has been rather little studied [185]. One process involving hydration and having a good industrial perspective is the telomerization of unsaturated compounds. For example, the aqueous telomerization of butadiene can afford octadienols. The process may be performed in a micellar system in the presence of surfactants with remarkable selectivity [186] ... 

Chem. Descrip. Organosilicone surfactant/alcohol ethoxylate surfactant blend Silfar S194 [Wacker-Chemie AG]... 

Polymethyloctylslloxane Polytetradecylmethylslloxane surfactant, deck washes Burcoterge PAO-35 surfactant, decorative cosmetics Wacker-Belsil DM 350 surfactant, dedusting agents CEDEPHOS FA-600 surfactant, dedusting powders DelONIC LF-EP-35 DelONIC LF-EP-40 DelONIC LF-EP-61 surfactant, defoamers LIposorb 0 LIposotb P surfactant, defoaming detergents Plutonic RPE 2520 Plutonic RPE 3110 surfactant, defoliants Surf-Ac 820... 

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