FR2398839A1 - Kraft type paper pulp prepn. without sulphur pollutants - by treating shavings with sodium hydroxide followed by stabilised peroxide - Google Patents
Kraft type paper pulp prepn. without sulphur pollutants - by treating shavings with sodium hydroxide followed by stabilised peroxideInfo
- Publication number
- FR2398839A1 FR2398839A1 FR7724131A FR7724131A FR2398839A1 FR 2398839 A1 FR2398839 A1 FR 2398839A1 FR 7724131 A FR7724131 A FR 7724131A FR 7724131 A FR7724131 A FR 7724131A FR 2398839 A1 FR2398839 A1 FR 2398839A1
- Authority
- FR
- France
- Prior art keywords
- prepn
- sodium hydroxide
- shavings
- treating
- paper pulp
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
Landscapes
- Paper (AREA)
Abstract
PRepn. of chemical paper pulps by delignification of the lignocellulose first comprises cooking with sodium hydroxide, then separating the fibres, and then cooking for a second time with an alkaline peroxide soln. which contains a peroxide stabiliser. The process is used to prepare kraft papers. The process is man-polluting partic. with regard to sulphur cpds. and chlorinated bleading agents. It is simple and requires no costly investment in equipment. It yields pulps of increased mechanical properties, good bleachability, and is improved yields. Partic. it yields pulps of good tear strength for packaging.
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7724131A FR2398839A1 (en) | 1977-07-29 | 1977-07-29 | Kraft type paper pulp prepn. without sulphur pollutants - by treating shavings with sodium hydroxide followed by stabilised peroxide |
BE189399A BE869153A (en) | 1977-07-29 | 1978-07-20 | PROCESS FOR THE MANUFACTURE OF CHEMICAL PAPER PULP |
NO78782573A NO151975C (en) | 1977-07-29 | 1978-07-26 | PROCEDURE FOR THE PREPARATION OF CHEMICAL PAPER |
SE7808202A SE439172B (en) | 1977-07-29 | 1978-07-27 | PROCEDURE FOR THE PREPARATION OF CHEMICAL PAPER |
CA308,295A CA1128260A (en) | 1977-07-29 | 1978-07-27 | Method of production of chemical pulp |
FI782342A FI70440C (en) | 1977-07-29 | 1978-07-27 | FOER FARING FOR CHEMICAL PAPER MACHINERY |
AT0546578A AT371860B (en) | 1977-07-29 | 1978-07-27 | METHOD FOR PRODUCING CHEMICAL PAPER PULPS |
JP9164978A JPS54131003A (en) | 1977-07-29 | 1978-07-28 | Production of chemical pulp |
IT68812/78A IT1160561B (en) | 1977-07-29 | 1978-07-28 | PROCEDURE FOR THE MANUFACTURE OF CHEMICAL PASTE PER PAPER |
BR7804897A BR7804897A (en) | 1977-07-29 | 1978-07-28 | PROCESS OF MANUFACTURING CHEMICAL PASTE FOR PAPER PRODUCTION |
ES472184A ES472184A1 (en) | 1977-07-29 | 1978-07-28 | Procedure for the manufacture of chemical paper pastes (Machine-translation by Google Translate, not legally binding) |
DE2833115A DE2833115C3 (en) | 1977-07-29 | 1978-07-28 | Process for the production of paper pulps |
CH815678A CH634362A5 (en) | 1977-07-29 | 1978-07-28 | Process for the manufacture of chemical papermaking pulps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7724131A FR2398839A1 (en) | 1977-07-29 | 1977-07-29 | Kraft type paper pulp prepn. without sulphur pollutants - by treating shavings with sodium hydroxide followed by stabilised peroxide |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2398839A1 true FR2398839A1 (en) | 1979-02-23 |
FR2398839B1 FR2398839B1 (en) | 1982-10-29 |
Family
ID=9194264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7724131A Granted FR2398839A1 (en) | 1977-07-29 | 1977-07-29 | Kraft type paper pulp prepn. without sulphur pollutants - by treating shavings with sodium hydroxide followed by stabilised peroxide |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS54131003A (en) |
BR (1) | BR7804897A (en) |
FR (1) | FR2398839A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493365A1 (en) * | 1980-11-06 | 1982-05-07 | Tech Ind Papiers Carton Centre | PROCESS FOR THE MANUFACTURE OF CHEMICAL PAPER PULP AND PASTE THUS OBTAINED |
DE3302580A1 (en) * | 1982-01-28 | 1983-08-04 | PCUK-Produits Chimiques Ugine Kuhlmann, 92400 Courbevoie, Hauts-de-Seine | Process for treating chemical paper pulps |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5658086A (en) * | 1979-10-17 | 1981-05-20 | Kogyo Gijutsuin | Multistage bleaching method of pulps |
JPS5668178A (en) * | 1979-11-02 | 1981-06-08 | Kogyo Gijutsuin | Pulp producing method |
JP6280417B2 (en) * | 2014-03-28 | 2018-02-14 | 特種東海製紙株式会社 | Pulp for papermaking and method for producing the same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5526239B2 (en) * | 1972-12-14 | 1980-07-11 | ||
SE413684C (en) * | 1974-09-23 | 1987-05-18 | Mo Och Domsjoe Ab | PROCEDURE FOR PREPARING CELLULOSAMASSA IN THE REPLACEMENT AREA 65-95% |
JPS5143403A (en) * | 1974-10-09 | 1976-04-14 | Honshu Paper Co Ltd | Arukariparupuno seizohoho |
-
1977
- 1977-07-29 FR FR7724131A patent/FR2398839A1/en active Granted
-
1978
- 1978-07-28 BR BR7804897A patent/BR7804897A/en unknown
- 1978-07-28 JP JP9164978A patent/JPS54131003A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493365A1 (en) * | 1980-11-06 | 1982-05-07 | Tech Ind Papiers Carton Centre | PROCESS FOR THE MANUFACTURE OF CHEMICAL PAPER PULP AND PASTE THUS OBTAINED |
DE3302580A1 (en) * | 1982-01-28 | 1983-08-04 | PCUK-Produits Chimiques Ugine Kuhlmann, 92400 Courbevoie, Hauts-de-Seine | Process for treating chemical paper pulps |
Also Published As
Publication number | Publication date |
---|---|
BR7804897A (en) | 1979-04-24 |
JPS54131003A (en) | 1979-10-11 |
FR2398839B1 (en) | 1982-10-29 |
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