公开(公告)号：US3637639A

公开(公告)日：1972-01-25

申请号：US3637639D

申请日：1968-10-28

Applicant: FRANCIS R ZINNIEL

Inventor： ZINNIEL FRANCIS R ,  BLOME EUGENE R ,  KIMBALL PHILIP D

IPC: C09F1/00

CPC classification number: C09F1/00

Abstract: A CONTINUOUS PROCESS FOR THE EXTRACTION FROM RESINCONTAINING COAL, OF SUBSTANTIALLY ALL OF THE CONTAINED RESIN. THE PROCESS PROVIDES FOR SUBJECTING RESIN-CONTAINING COAL FINES TO A INTEGRATED SOLVENT-EXTRACTION AND SOLUTION-SEPARATION PROCEDURE FOR OBTAINING BOTH A FIRST QUANITY OF RESIN SOLUTION CONTAINING A MAJOR PORTION OF THE RESIN, AND A MIXTURE OF COAL FINES AND SOLUTION CONTAINING SUBSTANTIALLY ALL OF THE REMAINING PORTION OF THE RESIN; SUBJECTING THE MIXTURE TO A SERIES OF INTEGRATED SOLVENT-DILUTION AND SOLUTION-SEPARATION PROCEDURES FOR OBTAINING BOTH A SECOND OF RESIN SOLUTION CONTAINING SUBSTANTIALLY ALL OF THE REMAINING PORTION OF THE RESIN AND A RESIDUAL MIXTURE OF COAL FINES AND SOLVENT, RECOVERING SUBSTANTIALLY ALL OF THE RESIN CONTAINED IN THE FIRST AND SECOND QUANTIES OF SOLUTION; AND RECOVERING SUBSTANTIALLY ALL OF THE SOLVENT EMPLOYED.