p-C6H4C12 was prepared in high selectvity by gaseous-phase chlorination of benzene and/or PhCl in the presence of modernitic zeolites with Si02/A1203 molar ratio 22-50. Preparation for lower aliphatic hydrocarbons and olefins
Production of primary amines
- Publisher
- Elsevier Science
- Year
- 2007
- Weight
- 423 KB
- Volume
- 2007
- Category
- Article
- ISSN
- 1351-4180
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β¦ Synopsis
Thermostable Enzyme Laboratory, a bioventure based in Osaka, Japan, has created a novel enzyme to improve the efficiency of bioethanol manufacture. The new enzyme is highly resistant to heat and effective in decomposing starch, cellulose and other raw materials for ethanol production to sugar form at high temperatures. The enzyme can withstand temperatures above 70Β°C up to 90-100Β°C without sacrificing its high sugar conversion efficiency. This compares to about 65Β°C with conventional enzymes. It also reduces the amount of residue generated during the process by 80% compared with conventional enzymes.
π SIMILAR VOLUMES
## Abstract The preparation is described of some substituted 1,4βthiazaneβ1,1βdioxides containing respectively propargyl, allyl, cyclohexyl, benzyl, octyl, dodecyl and cetyl groups in the 4βposition. Also some quaternary compounds derived from the first four substances are described.
Many primary amines when heated with a catalytic amount of a strong base are converted into secondary amines. Sodium hydride (0.2-0.3 mole per mole of amine) CH3(CH2)4CH2NH2 90-110~ 16 hr