NOPR Collection:

Studies on the oxidation of 4-methyl phenol

Sun, 01 Sep 1996 00:00:00 GMT

Title: Studies on the oxidation of 4-methyl phenol Authors: Vidyasagar, A; Nalawala, K J; Varshney, A K; Murthy, C S; Mehta, M H Abstract: The liquid phase catalytic oxidation of 4-methyl phenol (p-cresol) and the effect of different parameters, viz., time, temperature and pressure on the final yield has been studied. Page(s): 295-297

Alkylation of p-cresol with cyclohexene in the presence of benzenesulphonic acid

Sun, 01 Sep 1996 00:00:00 GMT

Title: Alkylation of p-cresol with cyclohexene in the presence of benzenesulphonic acid Authors: Saha, Manoranjan; Mosihuzzaman, M; Saha, Shikha Abstract: 2-Cyclohexyl-4-metylphenol was obtained in high yield by the alkylation of p-cresol with cyclohexene in the presence of benzenesulphonic acid. The effect of variation of parameters on the reaction has been investigated. 2-Cyclohexyl-4-methylphenolwas further converted to 2, 6-dicyclohexyl-4-methylphenol. Page(s): 292-294

Application of alum plant waste liquor in treatment of alkaline waste waters

Sun, 01 Sep 1996 00:00:00 GMT

Title: Application of alum plant waste liquor in treatment of alkaline waste waters Authors: Shivhare, R L; Pandey, G S Abstract: The presence of acidity and dissolved aluminium in the alum plant waste liquor has been used in the treatment of wastewaters of alkaline nature. The wastewaters from soap plant, textile mill, copper ore-concentrate and milk processing plant were made to in-teract with the alum plant liquor in such volume ratios as to produce equilibrium pH of 7. Parallel runs to produce equilibrium pH 6 of the resulting mixtures were also carried out The percentage of removal of TDS and COD of the interaction fluids at the pH 7 were found to be 95.0 and 97.5, respectively, for in-teraction with the soap plant wastewaters, 82.3 and 93.2 with the textile wastewaters 75.5 and 92.3 with copper ore wastewaters, and 60.9 and 94.4 with milk processing wastewaters. There was also significant lowering in the values of ionic species. Compared to the interaction at the equilibrium pH of 6, that at the equilibrium pH of 7 was found to give a higher degree of removal of the pollutional characteristics of the wastewaters. Page(s): 289-291

Feasibility of production of needle coke from lube oil extracts

Sun, 01 Sep 1996 00:00:00 GMT

Title: Feasibility of production of needle coke from lube oil extracts Authors: Kumar, M M; Madhwal, D C; Bhatia, B M L; Singh, S; Chandola, H C; Tandon, D Abstract: Feasibility of producing needle coke from three aromatic extracts obtained by solvent refining of lubricating oil base stocks has been studied in a bench scale delayed coker. Analytical data has been generated on the feedstocks and important structural features discussed to explain the suitability of these feedstocks for producing needle coke. Page(s): 285-288