公开(公告)号：FR2461777A1

公开(公告)日：1981-02-06

申请号：FR8008322

申请日：1980-04-14

Applicant: DEGUSSA

Inventor： BERNDT WILHELM ,  JUNKERMANN HELMUT ,  KRUGER HORST ,  HAFNER VOLKER ,  WINK JAKOB

IPC: D21C11/08

Abstract: The highly odorous evaporation condensates arising in the recovery of chemicals in pulp digestion are completely deodorized by addition of hydrogen peroxide alone, i.e. without addition of a metal salt as activator, and can immediately be used either as washing water in the processing of the digestion waste liquors for chemicals recovery or discharged directly into a watercourse.

公开(公告)号：CH645147A5

公开(公告)日：1984-09-14

申请号：CH543880

申请日：1980-07-15

Applicant: DEGUSSA

Inventor： BERNDT WILHELM DR ,  JUNKERMANN HELMUT DR ,  KRUEGER HORST DR ,  HAFNER VOLKER ,  WINK JAKOB

IPC: D21C11/08

公开(公告)号：FI68684C

公开(公告)日：1985-10-10

申请号：FI793720

申请日：1979-11-27

Applicant: DEGUSSA

Inventor： KRUEGER HORST ,  BERNDT WILHELM ,  WINK JAKOB

IPC: D21C9/16

公开(公告)号：DE2964319D1

公开(公告)日：1983-01-20

申请号：DE2964319

申请日：1979-12-04

Applicant: DEGUSSA

Inventor： KRUGER HORST DR ,  BERNDT WILHELM DR ,  WINK JAKOB

IPC: D21C9/16

公开(公告)号：CA1139507A

公开(公告)日：1983-01-18

申请号：CA350593

申请日：1980-04-24

Applicant: DEGUSSA

Inventor： BERNDT WILHELM ,  JUNKERMANN HELMUT ,  KRUEGER HORST ,  HAFNER VOLKER ,  WINK JAKOB

IPC: D21C11/08 ,  C02F1/72

Abstract: The intensely odorous evaporation condensates obtained in the recovery of chemicals in the decomposition of pulp are completely deodorized by the addition of hydrogen peroxide alone, i.e., without the addition of a metallic salt as the activator. They can be used immediately either as wash water in the treatment of decomposition effluents for the recovery of chemicals or passed directly into the main canal.

公开(公告)号：DE2905936B1

公开(公告)日：1980-04-30

申请号：DE2905936

申请日：1979-02-16

Applicant: DEGUSSA

Inventor： KRUEGER HORST DR ,  BERNDT WILHELM DR ,  WINK JAKOB

IPC: D21C9/16 ,  D21C11/08

公开(公告)号：CH633844A5

公开(公告)日：1982-12-31

申请号：CH514378

申请日：1978-05-11

Applicant: DEGUSSA

Inventor： BERNDT WILHELM DR ,  WINK JAKOB

IPC: D21C9/10

公开(公告)号：CA1129157A

公开(公告)日：1982-08-10

申请号：CA345493

申请日：1980-02-13

Applicant: DEGUSSA

Inventor： KRUEGER HORST ,  BERNDT WILHELM ,  WINK JAKOB

IPC: D21C9/16

Abstract: Kraft or sulphate pulp is used in the unbleached state for the production of packaging material because of its good strength properties. However, the unbleached Kraft or sulphate pulp is not suitable for packaging material for food since it has an ugly brown colour and an unpleasant odor due to the decomposition process and the washing with condensates from evaporation. According to the invention, the Kraft or sulphate pulp may be brightend by approximately five points and deodorized by means of peroxide without reducing the strength. The treatment can be carried out in conventional plants for the production of pulp after diffusion washing in a thick-pulp tower. Hydrogen peroxide is preferably used as the peroxide.

公开(公告)号：FI793720A

公开(公告)日：1980-08-17

申请号：FI793720

申请日：1979-11-27

Applicant: DEGUSSA

Inventor： KRUGER HORST ,  BERNDT WILHELM ,  WINK JAKOB

IPC: D21C9/16 ,  D21C

公开(公告)号：IT8068096D0

公开(公告)日：1980-07-10

申请号：IT6809680

申请日：1980-07-10

Applicant: DEGUSSA

Inventor： JUNKERMANN WILHELM BERNDT HELM ,  HAFNER HORST KRUGER VOLKER ,  WINK JAKOB

IPC: D21C11/08 ,  D21C