Producing solvent-grade methyl-naphthalene

Details Producing solvent-grade methyl-naphthalene Producing solvent-grade methyl-naphthalene

C - Chemistry, Metallurgy

07

C

260/715.7

C07C 15/24 (2006.01) C07C 7/00 (2006.01) C07C 7/10 (2006.01) C07C 7/171 (2006.01)

Patent

CA 1184948

ABSTRACT PRODUCING SOLVENT-GRADE METHYL-NAPHTHALENE A methylnaphthalene-containing coal tar dis- tillation fraction which has already been extracted with base to remove tar acids is treated by three ex- tractions to remove tar bases and impurities which have or form color or odor. No final distillation is required. The first extraction is with about 70-85% sulfuric acid, the second with about 90-100% sulfuric acid and the third with aqueous base such as about 2-25% sodium hydroxide. The resultant methyl-naphthalene is suitable for dye-carrier and other solvent applications.

403764

Affiliated with

Also associated with

Rating

Producing solvent-grade methyl-naphthalene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Producing solvent-grade methyl-naphthalene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Producing solvent-grade methyl-naphthalene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1307828