PT91951A - Process for the treatment of corks with an alkaline solution followed by an acid solution containing peroxide - Google Patents

Process for the treatment of corks with an alkaline solution followed by an acid solution containing peroxide

Info

Publication number
PT91951A
PT91951A PT9195189A PT9195189A PT91951A PT 91951 A PT91951 A PT 91951A PT 9195189 A PT9195189 A PT 9195189A PT 9195189 A PT9195189 A PT 9195189A PT 91951 A PT91951 A PT 91951A
Authority
PT
Portugal
Prior art keywords
corks
stage
treatment
solution containing
alkaline solution
Prior art date
Application number
PT9195189A
Other languages
Portuguese (pt)
Other versions
PT91951B (en
Inventor
Charles Bousser
Jean-Charles Duteriza
Marc Hagen
Original Assignee
Henkel Kgaa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel Kgaa filed Critical Henkel Kgaa
Priority to PT9195189A priority Critical patent/PT91951B/en
Publication of PT91951A publication Critical patent/PT91951A/en
Publication of PT91951B publication Critical patent/PT91951B/en

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  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The invention relates to a process for the treatment of corks which comprises in a first stage or cleaning stage, especially with agitation, treatment of the corks at ambient temperature with an aqueous alkaline solution containing a mixture of sodium hydroxide, sodium silicate and hydrogen peroxide; in a second stage or resting stage, drying the corks at a temperature of the order of 40 to 80 degree C; in a third stage, or disinfection stage, treating the corks with an acid aqueous solution until equilibrium is reached, this containing a mixture of acetic acid with peracetic acid and hydrogen peroxide; and a final drying stage.
PT9195189A 1989-10-11 1989-10-11 PROCESS FOR THE TREATMENT OF CORTICAL ROLLS WITH AN ALKALINE SOLUTION FOLLOWED BY A SOLUTION ACID CONTAINING PEROXIDES PT91951B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PT9195189A PT91951B (en) 1989-10-11 1989-10-11 PROCESS FOR THE TREATMENT OF CORTICAL ROLLS WITH AN ALKALINE SOLUTION FOLLOWED BY A SOLUTION ACID CONTAINING PEROXIDES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT9195189A PT91951B (en) 1989-10-11 1989-10-11 PROCESS FOR THE TREATMENT OF CORTICAL ROLLS WITH AN ALKALINE SOLUTION FOLLOWED BY A SOLUTION ACID CONTAINING PEROXIDES

Publications (2)

Publication Number Publication Date
PT91951A true PT91951A (en) 1990-04-30
PT91951B PT91951B (en) 1995-03-01

Family

ID=20084581

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9195189A PT91951B (en) 1989-10-11 1989-10-11 PROCESS FOR THE TREATMENT OF CORTICAL ROLLS WITH AN ALKALINE SOLUTION FOLLOWED BY A SOLUTION ACID CONTAINING PEROXIDES

Country Status (1)

Country Link
PT (1) PT91951B (en)

Also Published As

Publication number Publication date
PT91951B (en) 1995-03-01

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19940818

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20020228