Allied Chemical Corporation

Commercial hexachloroacetone (Allied Chemical Corporation) was distilled and the fraction boiling at 93-97°/24 mm. was used. 

This chemical is available from Aldrich Chemical Company, Inc., Halocarbon Products Corporation, Allied Chemical Corporation, or Eastman Organic Chemicals. 

A process for depolymerizing nylon-6 and polyester-nylon-6 mixed scrap was patented by Allied Chemical Corporation in 19656 and 1967.7 Ground scrap was dissolved with high-pressure steam at 125-130 psig (963-997 kPa) pressure and 175-180°C for 0.5 h in a batch process and then continuously hydrolyzed with superheated steam at 350°C and 100 psig (790 kPa) to form -caprolactam at an overall recovery efficiency of 98%. The recovered monomer could be repolymerized without additional purification. 

According to the Illinois Environmental Protection Agency (IEPA), a series of gas blowouts has occurred at two waste injection wells in the state (Brower el al., 1989). In each case, well operators were injecting concentrated hydrochloric acid into a dolomite bed. At its plant near Tuscola, the Cabot Corporation injects acid waste from the production of fumed silica into the Cambrian Eminence and Potosi Formations below 5 000 ft (1 500 m) depth. Allied Chemical Corporation injects acid into the Potosi formation below about 3 600 ft (1 100 m). The acid, which is contaminated with arsenic, is a byproduct of the manufacture of refrigerant gas. Since some of the blowouts have caused damage such as fish kills, there is environmental interest as well as operational concern in preventing such accidents. 

Cumox [Cumene oxidation] A process for making acetone and phenol by oxidizing cumene, based on the Hock process. This version was further developed and licensed by UOR Three plants were operating in 1986. UOP now licenses the Allied-UOP Phenol process, which combines the best features of Cumox and a related process developed by the Allied Chemical Corporation. 

Invented in Germany during World War II by H. Hock and S. Lang in the course of developing cumene hydroperoxide for initiating the polymerization of butadiene-styrene mixtures. After the war the process was developed by the Distillers Company in England and Allied Chemical Corporation in the United States. Since 1954 this has been the main commercial process for the production of phenol and acetone. By 1987, 97 percent of the phenol made in the United States was produced via this route. In 1990, both resorcinol and hydro-quinone were produced commercially by this route as well. See also Cumox. 

The sodium nitrate was used as a fertilizer. The evolution of the process was complex the book referenced below lists 63 patents relating to it. It was installed by the Solvay Process Company at Hopewell, VA in the 1930s it was in operation there, subsequently under the management of the Allied Chemical Corporation until the 1950s. 

I. Iteagiait grade chromium(VI) oxide was dried over flliiiHplioriiH pentoxide. The checkers used material available I l om Allied Chemical Corporation, B and A grade. 

N,N-Dimethylformamide, obtained from Allied Chemical Corporation, was purified by distillation under reduced pressure, b.p. 39-41° (6 mm.). 

Allied Chemical Corporation, unpublished results on Contract No. DA-30-069-ORD-2638 (Sept. 1959-Sept. 1964). 

Allied Chemical Corporation Toxicological studies on decachlorooctahydro-1,3,4-metheno-2//-cyclobuta[cd] pentalen-2 -one (Compound no. 1189) (Kepone). New York, Allied Chemical Corporation, March 1960... 

The reagent grade of powdered, anhydrous aluminum chloride employed was obtained from the Specialty Chemicals Division, Allied Chemical Corporation. 

This approximate fivefold excess is necessary to reduce flic chromium higher valent salts and thereby eliminate overoxidation and double bond cleavage. The zinc dust used was obtained from Allied Chemical Corporation. 

Reagent Grade. Code 2049, Baker Adamson Products, General Chemical Division. Allied Chemical Corporation, Morristown, NJ 07960. 

Regular commercial grade of concentrated sulfuric acid (sp. gr. 1.84) obtained from the General Chemical Division of Allied Chemical Corporation was used. 

Allied Chemical Corporation, Industrial Chemicals Division, Syracuse, N.Y. 13209. tAllied Chemical Corporation, Specialty Chemicals Division, Buffalo, N.Y. 14200. fU-S. Naval Research Laboratory, Washington, D.C. 20390. 

Allied Chemical Corporation, Corporate Chemical Research Laboratories, Morristown, NJ. 07960. 

S.M. Aharoni, and D. Masilamani, Process for preparing extended chain polyesters and block or graft copolyesters, US Patent 4568720, assigned to Allied Chemical Corporation, February 4,1986. 

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