摘要:

A number of Canadian bentonites were investigated as refining and bleaching agents for a variety of industrially important petroleum and fatty oils including the following: lubricating oil distillates, cracked motor fuel distillates; peanut, cottonseed, coconut, and palm oils; lard and beef tallow; linseed oil; pilchard oil; used crank-case oils, insulating oils, and dry cleaning solvents. The raw materials and test methods were chosen to conform to industrial practice. Canadian clays were chiefly from the four western provinces, and comparisons are shown with the results obtained on several imported clays now in use. Several Canadian bentonites show good results in the bleaching of fatty oils and petroleum distillates. Bentonite from the Morden, Manitoba, district possesses unusually high adsorbent power, and in the activated condition its effect on all the raw materials tested is much superior, within the limits of the laboratory test methods employed, to that of all other bentonites examined in this investigation. Optimum methods of activation of these bentonites are discussed. Low silica to alumina ratio and high percentage of combined water are the outstanding characteristics of Morden bentonite, in comparison with adsorbent clays from other sources. Bentonites were not found suitable for use in the vapor phase percolation treatment of cracked distillates.

ISSN:1923-4287    

DOI:10.1139/cjr38b-002

出版商:NRC Research Press    

年代:1938

数据来源: NRC

摘要:

This preliminary report of the action of phenylmagnesium bromide on anthraquinone contains the description of a procedure for avoiding the recovery of large amounts of unchanged quinone, with consequent increasing of the yield. Butyl ether is preferable to toluene for "forced" Grignard reactions.

ISSN:1923-4287    

DOI:10.1139/cjr38b-003

出版商:NRC Research Press    

年代:1938

数据来源: NRC