公开(公告)号：JPH0468299B2

公开(公告)日：1992-11-02

申请号：JP25092487

申请日：1987-10-05

Applicant: TORAY INDUSTRIES

Inventor： KONDO RYOZO ,  OOKUBO TAKASHI

IPC: C07C37/00 ,  B01J23/42 ,  B01J27/045 ,  C07B61/00 ,  C07C27/00 ,  C07C37/06 ,  C07C39/15 ,  C07C67/00

公开(公告)号：JPS5953204B2

公开(公告)日：1984-12-24

申请号：JP18134280

申请日：1980-12-23

Applicant: TORAY INDUSTRIES

Inventor： KONDO RYOZO ,  OOKUBO TAKASHI ,  MORI AKIRA

IPC: B01D53/50 ,  B01D53/14 ,  B01D53/34 ,  B01D53/77 ,  C01B7/07

公开(公告)号：JPS57105224A

公开(公告)日：1982-06-30

申请号：JP18134280

申请日：1980-12-23

Applicant: TORAY INDUSTRIES

Inventor： KONDOU RIYOUZOU ,  OOKUBO TAKASHI ,  MORI AKIRA

IPC: B01D53/50 ,  B01D53/14 ,  B01D53/34 ,  B01D53/77 ,  C01B7/07

Abstract: PURPOSE:To remove SO2 in high efficiency by contacting SO2 containing HCl gas with saturated HCl containing nitric acid. CONSTITUTION:When cycloalkane oxime hydrochloride 2 prepared in a photo- nitrosation apparatus 1 of cycloalkane is rearranged with sulfuric acid in a Beckmann's rearrangement apparatus 3, lactam sulfate and waste gas 6 consisting essentially of gaseous HCl and a small amount of SO2 are generated. This waste gas is introduced into oxidation reaction apparatus 7 and, on the other hand, saturated HCl solution 13 containing nitric acid replenished from a storage tank 8 is supplied to 7 through a pump 9 and a pipe to bring both material into contact. SO2 in the waste gas 6 is reacted with HNO3, and HCl to form H2SO4, and SO2 is removed. The HCl solution 13 is recirculated to be reused but, because SO2 removal ratio is lowered if H2SO4 concn. is raised, H2SO4 is appropriately discharged out of the system from a discharge port 10.

公开(公告)号：JPS61124B2

公开(公告)日：1986-01-06

申请号：JP9525481

申请日：1981-06-22

Applicant: TORAY INDUSTRIES

Inventor： SETSUDA TSUTOMU ,  KONDO RYOZO ,  OOKUBO TAKASHI

IPC: B01D11/04 ,  B01D17/00 ,  C07C27/00 ,  C07C29/00 ,  C07C29/12 ,  C07C31/02 ,  C07C67/00

公开(公告)号：JPS57212130A

公开(公告)日：1982-12-27

申请号：JP9525481

申请日：1981-06-22

Applicant: TORAY INDUSTRIES

Inventor： SETSUDA TSUTOMU ,  KONDOU RIYOUZOU ,  OOKUBO TAKASHI

IPC: B01D11/04 ,  B01D17/00 ,  C07C27/00 ,  C07C29/00 ,  C07C29/12 ,  C07C31/02 ,  C07C67/00

Abstract: PURPOSE:To carry out the denitration reaction of an organic nitric acid ester, without using complicated operations or external energy source, by the hetero- phase treatment of a hydrophobic phase containing said ester with an aqueous liquid phase containing the hydrosulfide, sulfide or polysulfide of ammonium or alkali metal. CONSTITUTION:A hydrophobic liquid phase especially chlorinated hydrocarbon solution containing