GB442357A - A process for preparing copper-containing cellulose solutions with employment of dilute aqueous ammonia - Google Patents
A process for preparing copper-containing cellulose solutions with employment of dilute aqueous ammoniaInfo
- Publication number
- GB442357A GB442357A GB2089035A GB2089035A GB442357A GB 442357 A GB442357 A GB 442357A GB 2089035 A GB2089035 A GB 2089035A GB 2089035 A GB2089035 A GB 2089035A GB 442357 A GB442357 A GB 442357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellulose
- solution
- added
- ammonia
- per cent
- 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
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract 27
- 229920002678 cellulose Polymers 0.000 title abstract 16
- 239000001913 cellulose Substances 0.000 title abstract 16
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title 1
- 229910052802 copper Inorganic materials 0.000 title 1
- 239000010949 copper Substances 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 33
- 229910021529 ammonia Inorganic materials 0.000 abstract 13
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 11
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 abstract 7
- 239000000203 mixture Substances 0.000 abstract 7
- 150000003839 salts Chemical class 0.000 abstract 6
- 229910001854 alkali hydroxide Inorganic materials 0.000 abstract 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 4
- 150000001879 copper Chemical class 0.000 abstract 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 abstract 2
- 229960003280 cupric chloride Drugs 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 abstract 1
- 239000005750 Copper hydroxide Substances 0.000 abstract 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 150000001450 anions Chemical class 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229940116318 copper carbonate Drugs 0.000 abstract 1
- 229910001956 copper hydroxide Inorganic materials 0.000 abstract 1
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 abstract 1
- GEZOTWYUIKXWOA-UHFFFAOYSA-L copper;carbonate Chemical compound [Cu+2].[O-]C([O-])=O GEZOTWYUIKXWOA-UHFFFAOYSA-L 0.000 abstract 1
- 150000004985 diamines Chemical class 0.000 abstract 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000009738 saturating Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/006—Preparation of cuprammonium cellulose solutions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Cellulose solutions are obtained by saturating cellulose with a solution of a cuprammine salt, prepared by treating a copper salt with an excess of ammonia of concentration of at most 8 per cent, and adding an alkali hydroxide in amount approximately equivalent to the copper salt used. The ammonia may be replaced by an equivalent amount of an aliphatic amine or diamine. In a modification solid cuprammine salts are mixed with cellulose in the ratio of about 2 mols. to 1 mol. and the mixture treated with an aqueous or aqueous ammoniacal solution of alkali hydroxide in amount equivalent to the anion of the copper salt. Again, cellulose may be saturated with alkali hydroxide, which may contain a few per cent of ammonia, and cuprammine salt added, the proportions of cellulose, cuprammine salt, and alkali preferably being in the molecular ratio 1 : 2 : 4. In a further modification, solutions of cuprammine salts prepared with excess of 3 to 8 per cent ammonia are first treated with about as much alkali hydroxide as is equivalent to the acid of the copper salt, and cellulose is introduced before the solution deposits copper hydroxide in the proportion of about one mol. to two mols. of cuprammine salt. The following examples are given: (1) Linters are dispersed in a solution of copper sulphate or copper acetate in 5 per cent ammonia and sodium hydroxide is added to the mixture. (2) Linters are distributed in a solution of cupric chloride in 5 per cent ammonia and sodium hydroxide is added. (3) Cellulose is impregnated with a solution of copper chloride or copper sulphate in 4--6 per cent ammonia. To this mixture sodium hydroxide is added. (4) Cellulose is introduced into a solution of copper chloride in 3 per cent of ammonia at 0 DEG C. and sodium hydroxide is added. (5) Sodium hydroxide is added to a solution of copper sulphate in 5 per cent ammonia, and cellulose is added as soon as possible with cooling and stirring. (6) Cellulose is impregnated with a solution of commercial copper carbonate dissolved in 5 per cent ammonia and to the mixture sodium hydroxide is added. (7) Cellulose is impregnated with a solution of cuprammine sulphate in very dilute ammonia and sodium hydroxide is added. (8) Cellulose is mixed with a solution of cuprammine chloride, and a solution of sodium hydroxide in dilute ammonia is p added. (9) Cellulose is impregnated with a solution of caustic soda in 1--4 per cent ammonia, and to the mixture cuprammine chloride is added. (10) Cellulose is impregnated with a solution of copper chloride in 6.4 per cent methylamine. Sodium hydroxide is then added to the mixture. (11) Sodium hydroxide is added to a mixture of cellulose and a solution of cupric chloride in 3 per cent ethylene diamine. The solutions may be used in the manufacture of filaments, foils, films, and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2089035A GB442357A (en) | 1935-07-23 | 1935-07-23 | A process for preparing copper-containing cellulose solutions with employment of dilute aqueous ammonia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2089035A GB442357A (en) | 1935-07-23 | 1935-07-23 | A process for preparing copper-containing cellulose solutions with employment of dilute aqueous ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB442357A true GB442357A (en) | 1936-02-06 |
Family
ID=10153497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2089035A Expired GB442357A (en) | 1935-07-23 | 1935-07-23 | A process for preparing copper-containing cellulose solutions with employment of dilute aqueous ammonia |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB442357A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320374A (en) * | 1979-03-21 | 1982-03-16 | Kearney-National (Canada) Limited | Electric fuses employing composite aluminum and cadmium fuse elements |
-
1935
- 1935-07-23 GB GB2089035A patent/GB442357A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320374A (en) * | 1979-03-21 | 1982-03-16 | Kearney-National (Canada) Limited | Electric fuses employing composite aluminum and cadmium fuse elements |
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