Acetylenic Compounds for Rocket Fuels
Abstract
Studies were continued on the preparation of divinyl diacetylene, to be used as an additive to JP-4. Several twelve liter scale runs were made. The technique of reuse of the catalyst mixture was investigated and it was found that while the first and second recycle gave good results, repeated use caused the catalyst mixture to deteriorate. An increase in concentration of vinyl acetylene from 50% to 67% in toluene, was found to give greater conversion to divinyl diacetylene. A six lb. sample of 50% divinyl diacetylene in toluene has boon sent out to Reaction Motors for test evaluation. As an inhibitor, 0.2% of p-quinone was added. Triallylhydrazine and dipropargyl hydrazine, both of potential interest to the JP-4 additive program, were prepared from the corresponding halides and hydrazine. Hypergolicity tests (Table 1) showed that dipropargyl hydrazine is less hypergolic than triallyl hydrazine but about the same order as dimethyl hydrazine. The pilot plant to produce methyl divinyl acetylene has continued in operation. During the two months covered by this report, 105 lbs. of methyl divinyl acetylene have been produced and distributed to interested groups for test evaluation. In general, yields of 40-55% were obtained. The effects of variations in time, temperature and feed rates are explained and summarized in Table II. Since it is believed that a major factor in keeping the conversion less than theoretical is the sulfuric acid dehydration process, construction of a vapor phase catalytic dehydration unit has been started.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1955
- Accession Number
- AD0306747
Entities
People
- Charles J. Marsel
- John Happel
Organizations
- New York University