Hercules powder

The two procedures primarily used for continuous nitration are the semicontinuous method developed by Bofors-Nobel Chematur of Sweden and the continuous method of Hercules Powder Co. in the United States. The latter process, which uses a multiple cascade system for nitration and a continuous wringing operation, increases safety, reduces the personnel involved, provides a substantial reduction in pollutants, and increases the uniformity of the product. The cellulose is automatically and continuously fed into the first of a series of pots at a controlled rate. It falls into the slurry of acid and nitrocellulose and is submerged immediately by a turbine-type agitator. The acid is deflvered to the pots from tanks at a rate controlled by appropriate instmmentation based on the desired acid to cellulose ratio. The slurry flows successively by gravity from the first to the last of the nitration vessels through under- and overflow weirs to ensure adequate retention time during nitration. The overflow from the last pot is fully nitrated cellulose. 

In the early 1950s novel polyethers were prepared in the laboratories of the Hercules Powder Company and of Imperial Chemical Industries Limited from oxacyclobutane derivatives. One such polyether that from 3,3-dichloromethyl-1-oxacyclobutane, was marketed by the first named company in 1959 under the trade name of Penton. Commercial manufacture of this material had, however, ceased by the end of 1972. 

Figure 22.4. Effect of degree of acetylation on (a) hardness, (b) water absorption, (c) impact strength and (d) flow temperature. (31% plasticiser content) (Hercules Powder Co. literature)...

Ref 11). The pH of a satd soln in w was measured with a glass electrode and found to be 0.6 (Ref 25, p 2) CA Registry No 517-25-9. The Hercules Powder Co of Wil-mington, Del has been granted a trademark for Nitroform , a synthetic w-insoluble compd for controlled release of N for agricultural use (Ref 40). This should not be confused with TNMe... 

Methyl Dihydroabietate (Commercial product developed by Hercules Powder Co under name Hercolyn . Another product is Hercolyn-D , which is Hercolyn deodorized by steam-blowing), C19H31COOCH3,mw 318.48, colorl to faintly amber colored liq mp, does not freeze at —40°, but becomes very viscous bp 356—70° with si decompn d 1.020—1.030g/cc for Hercolyn flash p 183° and fire p 218° (Cleveland open... 

The compound was also prepd and examined in the USA by Picatinny Arsenal, Hercules Powder Co and others, and was found to have the following characteristics ... 

Parlon (Chlorinated Rubber, Tornesit, Allo-prene). A proprietary trade name (Hercules Powder Co) for a rubber chlorinated polyisoprene, CH3... 

Acknowledgment is made of assistance in the chemical work by A. C. Hazen, H. D. Mann, and P. E. Hubanks. The infrared spectroscopic examination was made by W. C. Kenyon, Hercules Powder Company, Wilmington, Del. 

Hercules Powder Company, private communication to API Subcommittee on Corrosion. 

Ethyl Cellulose, Hercules Powder Co., Wilmington, Delaware. 

Hercules (1) An organic nitration process, similar to the Bofors process but using a tee-joint for mixing. Developed by the Hercules Powder Company, Wilmington, DE, from 1957. U.S. Patents 2,951,746 2,951,877. 

With the end of World War II in August 1945, the United States War Department had available at Louisiana, Missouri a high-pressure synthetic ammonia plant formerly operated by the Hercules Powder Company. The Bureau of Mines acquired this plant on February 1,... 

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