EP 3828336 A1 20210602 - METHOD FOR PURIFYING TURPENTINE CONDENSATE FROM TRS
Title (en)
METHOD FOR PURIFYING TURPENTINE CONDENSATE FROM TRS
Title (de)
VERFAHREN ZUR REINIGUNG VON TERPENTINKONDENSAT AUS TRS
Title (fr)
PROCÉDÉ DE PURIFICATION DE CONDENSAT DE TÉRÉBENTHINE À PARTIR DE TRS
Publication
Application
Priority
EP 19211806 A 20191127
Abstract (en)
The present invention describes a method for cleaning turpentine condensate (1) from total reduced sulphur (TRS) compounds which turpentine condensate is obtained by cooking soft wood pulp in a pulp mill. In the method obtained turpentine condensate (1) is collected and passed to a column (4) supplied with a steam input (5) whereby said steam input contacts said turpentine condensate (1). The TRS compounds is thereby totally or partially removed into a first gas stream (6) which is passed to a condenser (7). The first gas steam (6) is condensed out for obtaining a turpentine condensate (9) which is recycled to said column (4) and a second gas stream (11) is passed to a second condenser (12) from which a condensate (15) is obtained containing impure TRS-containing condensate. At the bottom of column (4) a purified turpentine condensate (17) is obtained and removed.
IPC 8 full level
D21C 11/00 (2006.01); D21C 11/06 (2006.01)
CPC (source: EP)
D21C 11/0007 (2013.01); D21C 11/0042 (2013.01); D21C 11/06 (2013.01)
Citation (search report)
- [A] US 4915784 A 19900410 - REYNOLDS ELLIS W [US]
- [A] US 4925527 A 19900515 - RYHAM ROLF [US]
- [A] WO 9937853 A1 19990729 - MO OCH DOMSJOE AB [SE], et al
- [A] WO 0149928 A1 20010712 - VALMET CHEMICAL PULPING OY [FI], et al
- [A] WO 0001879 A1 20000113 - PAPSEA AB [SE], et al
- [A] US 3745063 A 19730710 - FISHER J
- [A] WO 2014201555 A1 20141224 - FPINNOVATIONS [CA]
- [A] WO 2017053342 A1 20170330 - VEOLIA WATER TECH INC [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 19211806 A 20191127