ES249199A1 - Procedure for manufacturing high quality soluble cellulose (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure for manufacturing high quality soluble cellulose (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES249199A1 ES249199A1 ES0249199A ES249199A ES249199A1 ES 249199 A1 ES249199 A1 ES 249199A1 ES 0249199 A ES0249199 A ES 0249199A ES 249199 A ES249199 A ES 249199A ES 249199 A1 ES249199 A1 ES 249199A1
- Authority
- ES
- Spain
- Prior art keywords
- hydrochloric acid
- column
- cellulose
- acid
- hcl
- 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
- 239000001913 cellulose Substances 0.000 title abstract 5
- 229920002678 cellulose Polymers 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 20
- 239000002253 acid Substances 0.000 abstract 3
- 238000001704 evaporation Methods 0.000 abstract 3
- 238000005406 washing Methods 0.000 abstract 3
- 230000008020 evaporation Effects 0.000 abstract 2
- 239000000945 filler Substances 0.000 abstract 2
- 238000004061 bleaching Methods 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Process but manufacture high quality soluble cellulose, characterized by treating the high viscosity cellulose which has been processed in the customary manner and subjected to the bleaching mentioned or continued, with hydrochloric acid of 30 to 35% HCl at a current temperature of the rooms, separating the hydrochloric acid by washing and evaporating the sacchariferous solution of hydrochloric acid, which has been produced by proceeding to the purification of the cellulose, preferably in a set of multiple-pass evaporation apparatuses, driving the vapors of the acid hydrochloride from the last step to a column of filler materials that is under vacuum, leading to the top of said column of fillers dilute washing hydrochloric acid, which is produced by washing the cellulose, extracting in addition to the lower part of the hydrochloric acid column from approximately 24 to 25%, the latter conducting by a pump to a second rectifying column that is under normal pressure, disintegrating the hydrochloric acid in said rectifying column in gases-HCl and in acid of approximately 20%, driving this last acid back to the aforementioned vacuum column and recovering with the help of the gas-HCl, that has been produced in the second column, and with the condensation water of the hydrochloric acid of the other steps of evaporation a new hydrochloric acid of 30 to 35%, leading the latter again to the hydrochloric acid cycle . (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH5941558 | 1958-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES249199A1 true ES249199A1 (en) | 1959-10-01 |
Family
ID=38531025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0249199A Expired ES249199A1 (en) | 1958-05-12 | 1959-05-05 | Procedure for manufacturing high quality soluble cellulose (Machine-translation by Google Translate, not legally binding) |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE578512A (en) |
| ES (1) | ES249199A1 (en) |
-
1959
- 1959-05-05 ES ES0249199A patent/ES249199A1/en not_active Expired
- 1959-05-08 BE BE578512A patent/BE578512A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE578512A (en) | 1959-08-31 |
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