GB1016391A - Improvements in or relating to the manufacture of pulp and paper - Google Patents
Improvements in or relating to the manufacture of pulp and paperInfo
- Publication number
- GB1016391A GB1016391A GB4555361A GB4555361A GB1016391A GB 1016391 A GB1016391 A GB 1016391A GB 4555361 A GB4555361 A GB 4555361A GB 4555361 A GB4555361 A GB 4555361A GB 1016391 A GB1016391 A GB 1016391A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- azide
- pulp
- manufacture
- chlorophenols
- 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.)
- Expired
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- -1 alkali metal azide Chemical class 0.000 abstract 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 3
- 239000012736 aqueous medium Substances 0.000 abstract 3
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 230000000845 anti-microbial effect Effects 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical class C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 abstract 1
- VGVRPFIJEJYOFN-UHFFFAOYSA-N 2,3,4,6-tetrachlorophenol Chemical class OC1=C(Cl)C=C(Cl)C(Cl)=C1Cl VGVRPFIJEJYOFN-UHFFFAOYSA-N 0.000 abstract 1
- HSQFVBWFPBKHEB-UHFFFAOYSA-N 2,3,4-trichlorophenol Chemical class OC1=CC=C(Cl)C(Cl)=C1Cl HSQFVBWFPBKHEB-UHFFFAOYSA-N 0.000 abstract 1
- IVRMZWNICZWHMI-UHFFFAOYSA-N Azide Chemical compound [N-]=[N+]=[N-] IVRMZWNICZWHMI-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 abstract 1
- 150000008041 alkali metal carbonates Chemical class 0.000 abstract 1
- 150000003973 alkyl amines Chemical class 0.000 abstract 1
- 239000004599 antimicrobial Substances 0.000 abstract 1
- 150000001540 azides Chemical class 0.000 abstract 1
- 239000002585 base Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910021538 borax Inorganic materials 0.000 abstract 1
- 125000000623 heterocyclic group Chemical group 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 239000004328 sodium tetraborate Substances 0.000 abstract 1
- 235000010339 sodium tetraborate Nutrition 0.000 abstract 1
- 150000005846 sugar alcohols Polymers 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
- D21H21/04—Slime-control agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The formation of slime in aqueous media used in the manufacture of pulp and paper products is prevented by adding to the aqueous medium a quantity of alkali metal azide corresponding to an azide ion concentration in said aqueous medium of from 1 to 500 p.p.m. The azide is preferably added as an aqueous solution containing borax, an alkali metal carbonate or hydroxide, an alkylamine, alkanolamine or heterocyclic base to maintain the pH above 8. The aqueous solution may also contain an antimicrobial sulphur compound, e.g. NC-N = C(SH)2, N - alkyldithiocarbamic acids or mercaptobenzothiazoles or alkali metal salts thereof; antimicrobial chlorophenols, e.g. penta-, tetra- or tri-chlorophenols; or polyhydric alcohols, e.g. glycerol or alkylene glycols.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4928960 | 1960-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1016391A true GB1016391A (en) | 1966-01-12 |
Family
ID=12826717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4555361A Expired GB1016391A (en) | 1960-12-20 | 1961-12-19 | Improvements in or relating to the manufacture of pulp and paper |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1016391A (en) |
-
1961
- 1961-12-19 GB GB4555361A patent/GB1016391A/en not_active Expired
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