公开(公告)号：CA1094702A

公开(公告)日：1981-01-27

申请号：CA295737

申请日：1978-01-26

Applicant: DEGUSSA

Inventor： JUNKERMANN HELMUT ,  KRUGER HORST

IPC: B01J31/00 ,  C02F1/72 ,  C02C5/02

Abstract: The present invention provides a process for the purification of waste water containing phenol, phenol derivatives or phenol plus formaldehyde which process treats the waste water with hydrogen peroxide in the presence of metallic iron or copper.

公开(公告)号：CA1088231A

公开(公告)日：1980-10-21

申请号：CA293229

申请日：1977-12-16

Applicant: DEGUSSA

Inventor： JUNKERMANN HELMUT ,  HAFNER VOLKER

IPC: C02F1/28 ,  C02F1/76 ,  C02F9/00 ,  C02B5/02

Abstract: The invention provides a process for purifying phenoland phenol-formaldehyde containing waste water with chlorine dioxide, comprising treating the waste water with alkali or alkaline earth chlorites in the presence of formaldehyde, the ratio by weight of formaldehyde to phenol lying between 0.5 and 2:1, and the molar ratio of the sum of phenol and formaldehyde to chlorite being between 1:1.2 and 1:2.

公开(公告)号：CH609654A5

公开(公告)日：1979-03-15

申请号：CH1236375

申请日：1975-09-24

Applicant: DEGUSSA

Inventor： JUNKERMANN HELMUT ,  SCHWAB HEINRICH

IPC: C07C47/058 ,  C02F1/58 ,  C02F1/72 ,  C07C45/00 ,  C07C67/00 ,  C02C5/04

公开(公告)号：NO773807A

公开(公告)日：1978-07-28

申请号：NO773807

申请日：1977-11-07

Applicant: DEGUSSA

Inventor： JUNKERMANN HELMUT ,  KRUEGER HORST

IPC: C02F1/68 ,  C02F1/72 ,  C02C

CPC classification number: C02F1/722 ,  C02F1/683 ,  C02F1/725 ,  Y10S210/908 ,  Y10S210/909

公开(公告)号：NO774278L

公开(公告)日：1978-06-20

申请号：NO774278

申请日：1977-12-13

Applicant: DEGUSSA

Inventor： JUNKERMANN HELMUT ,  HAFNER VOLGER

IPC: C02F1/76 ,  C02F1/28 ,  C02F9/00 ,  C02C

Abstract: Phenol or phenol-formaldehyde containing waste water is purified with chlorine dioxide by treating the waste water with alkali or alkaline earth metal chlorite in the presence of formaldehyde and the weight ratio of formaldehyde to phenol is between 0.5 to 2:1 and the mole ratio of the sum of phenol + formaldehyde to chlorite is between 1:1.2 to 1:2, whereupon the treated water is decolorized, in a given case in known manner.

公开(公告)号：FI773140A

公开(公告)日：1978-06-18

申请号：FI773140

申请日：1977-10-21

Applicant: DEGUSSA

Inventor： JUNKERMANN HELMUT ,  HAFNER VOLKER

IPC: C02F1/28 ,  C02F1/76 ,  C02F9/00 ,  C02C

Abstract: Phenol or phenol-formaldehyde containing waste water is purified with chlorine dioxide by treating the waste water with alkali or alkaline earth metal chlorite in the presence of formaldehyde and the weight ratio of formaldehyde to phenol is between 0.5 to 2:1 and the mole ratio of the sum of phenol + formaldehyde to chlorite is between 1:1.2 to 1:2, whereupon the treated water is decolorized, in a given case in known manner.

公开(公告)号：CA730716A

公开(公告)日：1966-03-22

申请号：CA730716D

Applicant: DEGUSSA

Inventor： JUNKERMANN HELMUT ,  LOFFLER FRIEDRICH