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Section 1 758kb	Preface				1
	Introduction				1
	Experimental part				3
		Apparatus			3
		Preliminary tests			3
		Experiments with various one-component catalysts			5
		Thoria one-component catalyst			6
			Effect of synthesis temperature		6
			Effect of synthesis pressure		6
Section 2 944kb			Effect of pressure versus contact time upon conversion		8
			Effect of two-stage and recycling operations		8
		Effect of promoters and carrier on the activity of thorium oxide			9
			Effect of alimina		9
				Coprecipitated ThO₂-Al₂O₃	10
				Separate ThO₂ and Al₂O₃layers in the same reactor	10
				ThO₂-Al₂O₃precipitated separately and mixed in wet state	11
				ThO₂-Al₂O₃- kieselguhr	11
				Summary of ThO₂-Al₂O₃experiments	11
			Effect of alkali		11
				On ThO₂ catalyst	11
				On ThO₂-Al₂O₃catalyst	13
			Effect of zinc oxide		13
				On ThO₂ catalyst	13
				On Al₂O₃	13
Section 3 815kb				On ThO₂-Al₂O₃	15
			Effect of chromium oxide		15
				On ThO₂	15
				On Al₂O₃	15
			Effect of other promoters on ThO₂		15
				Phosphoric acid	15
				Iron	16
				Copper	16
		Conversion of dimethylether			17
	Analytical part				18
		Description of techniques			18
			Gas analysis		18
			Determination of dimethylether		18
			Study of gasol fraction		19
			Distillation of liquid hydrocarbons		19
			Determination of unsaturated liquid hydrocarbons		20
			Determination of aromatic compounds		20
			Determination of acids, esters, alcohols, aldehydes, ketones, and phenols		20
Section 4 868kb			Determination of the gasoline knock rating		21
			Investigation of lubricant properties of the high-boiling oil fractions		21
		Composition of liquid products from a life test over ThO₂-Al₂O₃ catalyst at 300 atmospheres			21
			Description of durability experiment		21
			Analysis of the gasol fraction		23
			Investigation of liquid hydrocarbon fraction obtained at synthesis temperature of 425° C		23
Section 5 713kb			Analysis of liquid hydrocarbon fraction obtained at synthesis temperature of 375° C		28
		Composition of liquid products obtained under various synthesis conditions			30
			ThO₂ catalyst, 150 atmospheres, 375° C		30
			ThO₂ catalyst 30 atmospheres, 475° C		30
		Composition of alcohol fraction			30
		Antiknock rating of the hydrocarbons			31
Section 6 1091kb	Nature of the isosynthesis reaction				33
		Comparison with other catalytic procedures for the hydrogenation of carbon monoxide			33
		Essential features of the isosynthesis			33
			The catalyst		33
			Synthesis conditions		33
			Products		33
		Possible mechanisms of the reaction			34
			Isomerization of primary n-paraffins		34
			Intermediate alcohol production		35
				Oxygenated byproducts of the isosynthesis	35
				Effect of the catalyst	35
				Intermediate dimethylether production	36
				Isomerization equilibria of olefins obtained by dehydration of alcohols	37
			Polymerization, alkylation, and cyclization reaction in the production of higher hydrocarbons (C₅+)		38