SU43153A1 - Method for producing purified low viscosity fiber for the production of cellulose ethers and esters - Google Patents
Method for producing purified low viscosity fiber for the production of cellulose ethers and estersInfo
- Publication number
- SU43153A1 SU43153A1 SU138640A SU138640A SU43153A1 SU 43153 A1 SU43153 A1 SU 43153A1 SU 138640 A SU138640 A SU 138640A SU 138640 A SU138640 A SU 138640A SU 43153 A1 SU43153 A1 SU 43153A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- production
- esters
- low viscosity
- cellulose ethers
- producing purified
- Prior art date
Links
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
С це.лью производства нитроклетчатки , предназначенной дл выработки нитролаков, кинопленки, целлюлоида н других изделий из нитроклетчатки, а также дл выработки других производных целлюлозы, как-то ацетилклетчатки и т. п., требуетс в больших количествах клетчатка, специально подготовленна в цел х снижени ЕЯЗКОСТИ ее (в медно-аммиачных растворах).With the aim of producing nitrocellulose, intended for the production of nitrolac, film, celluloid and other products from nitrocellulose, as well as for the production of other cellulose derivatives, such as acetylcellulose, etc., fiber is required that is specially prepared for reduce its effusion (in copper-ammonia solutions).
При изучении процесса отбелки клетчатки дл указанных целей (получение производных клетчатки) было обнаружено , что действие белильных растворов может быть направлено на снижение в зкости клетчатки уже при нормальной и даже при пониженных температурах путем введени в отбельную ванну специальных добавок, например, формалина, аммиака, гидрозина, мочевины и др.In studying the process of bleaching fiber for these purposes (obtaining fiber derivatives), it was found that the effect of bleaching solutions can be aimed at reducing the viscosity of fiber already at normal and even at low temperatures by introducing special additives, for example, formalin, ammonia, into the bleaching bath. hydrosine, urea, etc.
На основании этого разработан предлагаемый способ получени клетчатки различной в зкости. При этом, без повышени температуры и не прибега к подкислению раствора и другим практически неприемлемым операци м,удаетс получать клетчат-ку :любой заданной в зкости.Based on this, the proposed method of obtaining fiber with different viscosity has been developed. At the same time, without increasing the temperature and not resorting to acidification of the solution and other practically unacceptable operations, it is possible to obtain cellulose: any given viscosity.
(52)(52)
По разработанному способу применение гор чей кисловки отпадает совершенно . Клетчатка нужней в зкости получаетс отбелкой в тех же услови х в течение 1 часа раствором хлорной извести с 0,2 - 0, активного хлора, но с введением в раствор ,03 аммиака.According to the developed method, the use of hot acid is eliminated completely. Fiber with better viscosity is obtained by bleaching under the same conditions for 1 hour with a solution of bleach from 0.2 - 0, active chlorine, but with the introduction of 03 ammonia into the solution.
При гор чей кисловке получаетс клетчатка с содержанием альфа-целлюлозы 96-97,, в то врем , как по предлагаемому способу получаетс материал ни в какой мере не деструктированный и содержаш,,1Й 98,5-99,5% целлюлозы.With hot acid, cellulose is obtained with an alpha-cellulose content of 96-97, while the proposed method produces material that is in no way destructed and contains 1y 98.5-99.5% cellulose.
Применение предлагаемого способа дает возможность на любом заводе, имеюш,ем оборудование дл обычной отбелки, получать низков зкие сорта клетчатки повышенного качества со значительным облегчением условий работы и с удешевлением стоимости производства .The application of the proposed method makes it possible at any plant that has equipment for conventional bleaching to obtain low-viscous high-quality fiber grades with a significant easing of working conditions and with cheaper production costs.
Предмет изобретени .The subject matter of the invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU138640A SU43153A1 (en) | 1933-12-08 | 1933-12-08 | Method for producing purified low viscosity fiber for the production of cellulose ethers and esters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU138640A SU43153A1 (en) | 1933-12-08 | 1933-12-08 | Method for producing purified low viscosity fiber for the production of cellulose ethers and esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU43153A1 true SU43153A1 (en) | 1935-05-31 |
Family
ID=48357679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU138640A SU43153A1 (en) | 1933-12-08 | 1933-12-08 | Method for producing purified low viscosity fiber for the production of cellulose ethers and esters |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU43153A1 (en) |
-
1933
- 1933-12-08 SU SU138640A patent/SU43153A1/en active
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