Paraffin separation couplings

One of the first industrial adsorption processes was the separation of n/iso-paraffins in molecular sieves 5A zeolite developed by Union Carbide in the sixties for the octane improvement of gasoline pools and solvent production (Symoniak [1]). Since the seventies, the development of Hysomer and TIP (Total Isomerisation Process) by Shell and UOP respectively, and the demand of environment protection with the restriction of lead in fuel, makes this separation coupled with an isomerisation reactor one of the most licensed adsorption... 

Dansyl chloride (/V,/V-dimethylamino-a-naphthalene-5-sulfonyl chloride) (XXIV, Fig. 8) was used as a derivatizing agent for the TLC detection of herbicides and insecticides such as carbaryl, metacrate, alon, etc. After coupling with dansyl chloride, the pesticides were separated and tris(2-hydroxyethyl)amine or paraffin oil was sprayed on the plates to stabilize the fluorescence. The excitation maximum was at 320 nm and that of the emission was at 500-550 nm (174). Dansyl chloride reacts not only with amino groups but also compounds that hydrolyze to anilines. Forty-nine such compounds were detected on TLC plates by dansylation (175L Earlier the hydrolysis of pesticides was performed in a tube, and the products of the hydrolysis were spotted on the plate and chromatographed. According to a newer method, the hydrolysis of the pesticide metoxuron can be carried out... 

Uses Drilling mud detergent for tank bottom cleaning, injection well cleanup, and for separator cleanup emulsifier penetrant wetting agent coupling agent anti-stat emulsion treater loosens deposits of paraffinic and asphaltic materials, iron... 

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