CH479767A - Verfahren zur Herstellung von Halbzellstoffen - Google Patents
Verfahren zur Herstellung von HalbzellstoffenInfo
- Publication number
- CH479767A CH479767A CH479766A CH479766A CH479767A CH 479767 A CH479767 A CH 479767A CH 479766 A CH479766 A CH 479766A CH 479766 A CH479766 A CH 479766A CH 479767 A CH479767 A CH 479767A
- Authority
- CH
- Switzerland
- Prior art keywords
- pulps
- semi
- production
- Prior art date
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
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE426965A SE306659B (ko) | 1965-04-02 | 1965-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH479767A true CH479767A (de) | 1969-10-15 |
Family
ID=20263829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH479766A CH479767A (de) | 1965-04-02 | 1966-04-01 | Verfahren zur Herstellung von Halbzellstoffen |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5335161B1 (ko) |
| BE (1) | BE678920A (ko) |
| CH (1) | CH479767A (ko) |
| CS (1) | CS150171B2 (ko) |
| DE (1) | DE1692844A1 (ko) |
| FI (1) | FI43668C (ko) |
| FR (1) | FR1474458A (ko) |
| GB (1) | GB1147433A (ko) |
| NL (1) | NL6604344A (ko) |
| SE (1) | SE306659B (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4174209A (en) * | 1978-06-19 | 1979-11-13 | Eli Lilly And Company | Herbicidal 1-alkyl-3-phenylpyridinium salts |
-
1965
- 1965-04-02 SE SE426965A patent/SE306659B/xx unknown
-
1966
- 1966-04-01 NL NL6604344A patent/NL6604344A/xx unknown
- 1966-04-01 DE DE19661692844 patent/DE1692844A1/de active Pending
- 1966-04-01 CH CH479766A patent/CH479767A/de not_active IP Right Cessation
- 1966-04-01 CS CS219166A patent/CS150171B2/cs unknown
- 1966-04-01 FR FR56129A patent/FR1474458A/fr not_active Expired
- 1966-04-01 GB GB1456266A patent/GB1147433A/en not_active Expired
- 1966-04-01 JP JP2002566A patent/JPS5335161B1/ja active Pending
- 1966-04-01 BE BE678920D patent/BE678920A/xx unknown
- 1966-04-02 FI FI86466A patent/FI43668C/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| FI43668C (fi) | 1971-05-10 |
| DE1692844A1 (de) | 1971-10-28 |
| CS150171B2 (ko) | 1973-09-04 |
| SE306659B (ko) | 1968-12-02 |
| BE678920A (ko) | 1966-10-03 |
| FR1474458A (fr) | 1967-03-24 |
| GB1147433A (en) | 1969-04-02 |
| FI43668B (ko) | 1971-02-01 |
| NL6604344A (ko) | 1966-10-03 |
| JPS5335161B1 (ko) | 1978-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |