Patent
Separation of toluene from methyl isobutyl ketone by azeotropic distillation
Lloyd Berg,Randi W. Wytcherley +1 more
TLDR
Toluene cannot be separated from methyl isobutyl ketone by conventional distillation or rectification because of the minimum boiling azeotrope as discussed by the authors, but Toluene can be readily separated using azeotropic distillation by using 1-butanol, 2-methoxyethanol and n-heptane.Abstract:
Toluene cannot be separated from methyl isobutyl ketone by conventional distillation or rectification because of the minimum boiling azeotrope. Toluene can be readily separated from methyl isobutyl ketone by using azeotropic distillation. Typical examples of effective agents are 1-butanol, 2-methoxyethanol and n-heptane.read more
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Patent
Methods for preparing cinacalcet hydrochloride
Pratap Reddy Padi,Surya Prabhakar Akundi,Sashikanth Suthrapu,Naveen Kumar Kolla,Vijaya Kumar Kotagiri,Uday Kumar Neelam,Sudhakar Reddy Baddam,Nagaraju Manne,Surya Narayana Devarakonda,Ram Thaimattam,Balaji Raghupati,Satish Kumar Vasamsetti +11 more
TL;DR: In this article, a process for making cinacalcet hydrochloride is described, which includes a solution of free base of CCL in a solvent that is an alcohol or alkyl acetate, treating said solution with an amount of hydrochloric acid sufficient to convert said free base to said HCl salt, adding an anti-solvent to said treated solution in the amount sufficient to precipitate said HCL salt in the form of a solid, and isolating said precipitated solid thereby obtaining said CCL.
Patent
Separation of 1-decene from 2-octanone by azeotropic distillation
Lloyd Berg,Randy W. Wytcherley +1 more
TL;DR: In this article, 1-decene is impossible to separate from 2-octanone by conventional distillation or rectification because the two compounds form a minimum boiling azeotrope.
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Patent
Process for recovering toluene
TL;DR: In this paper, a process for recovering toluene from hydrocarbon mixtures containing toluenes and like-boiling, non-aromatic hydrocarbons is described. But this process is not suitable for catalytic treatment.
Patent
Ketone recovery by steam and alkali contact
TL;DR: A process for the recovery of saturated acyclic aliphatic ketones having at least 4 carbon atoms and a methylene group adjacent to the keto group is described in this article.