Abstract: A continuous process is provided for the manufacture of haloalkanes by the reaction of carbon tetrachloride with olefins in the presence of iron metal, trialkylphosphate, and ferric chloride. A fraction of the catalyst and co-catalyst are separated after the reaction and recycled. In a preferred application, the olefin is ethene, and the haloalkane product is 1,1,1,3-tetrachloropropane. Two distillation steps take place in order to enhance the production of 1,1,1,3-tetrachloropropane.

Abstract: Isopropyl chloride (IPC) is prepared by the chlorination of propane or propene or propyne, or by any other means resulting in an IPC product containing significant amounts of undesired olefins. Such impure product may be purified by chlorination followed by distillation, by distillation followed by chlorination followed by distillation, by chlorination followed by treatment to reduce chlorine concentration followed by distillation, or by distillation followed by chlorination followed by treatment followed by distillation.

Abstract: A chloride dioxide generation system made efficient by the use of a minimum number of seals and the use of a sophisticated computerized control system with the chlorine dioxide generation system comprising a) multiple PID loop control, b) a touch screen interface (HMI), c) automatic flow control of chemical precursors, d) a process controller, e) a minimum number of seals, f) a seal-less vacuum eductor, g) a unit design of the ejector; seal-less tubing connector and seal-less manual flowmeters, h) a vacuum eductor to be used with gas supply and other chemical feeds, i) a mass dispersion chlorine flowmeter to accurately supply amount of chlorine gas, j) an optical chlorine dioxide analyzer looped to the process controller and k) an automatic efficiency control screen.