SU827658A1 - Method of obtaining sulphate pulp - Google Patents
Method of obtaining sulphate pulp Download PDFInfo
- Publication number
- SU827658A1 SU827658A1 SU792715595A SU2715595A SU827658A1 SU 827658 A1 SU827658 A1 SU 827658A1 SU 792715595 A SU792715595 A SU 792715595A SU 2715595 A SU2715595 A SU 2715595A SU 827658 A1 SU827658 A1 SU 827658A1
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- SU
- USSR - Soviet Union
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- sulphate pulp
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- chips
- ussr
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Description
Пример. Варка целлюлозы проводилась в кислотоупорных стаканах объемом 500 мл.Example. The pulping was carried out in acid-resistant 500 ml beakers.
Лиственничную щепу заливали водой (гидромодуль 4:,1) и помещали стаканы в глицериновую баню, нагретую до 140° С и выдерживали 20-40 минут, после чего экстракт сливали, при этом щепа впитывала жидкость в соотношении 1:1. Затем в стаканы загружали лиственную щепу в количестве 20-40% и заливали варочным щелоком с содержанием активной щелочи 1,2-14% ед. Na2O, сульфидностью 30%, и гидромодулем 3:1.Larch chips were poured with water (hydraulic module 4: 1) and placed in a glycerin bath heated to 140 ° C and kept for 20-40 minutes, after which the extract was drained, while the chips absorbed the liquid in a 1: 1 ratio. Then in the glasses were loaded hardwood chips in the amount of 20-40% and filled with cooking liquor with an active alkali content of 1.2-14% units. Na2O, sulphidity of 30%, and hydronic 3: 1.
Варку осуществл ли по следующему режиму: подъем температуры от .140 доCooking was carried out in the following mode: a temperature rise from .140 to
175° С в течение 60 мин., продолжительность варки при конечной температуре 30- 65 мин. Определ ли выход целлюлозы, полученную целлюлозу размалывали до степени помола 30° ШР и изготовл ли отливки на «Рапиде массой 100 г/л.175 ° C for 60 minutes, the duration of cooking at the final temperature of 30- 65 minutes The yield of cellulose was determined, the resulting cellulose was ground to a degree of grinding of 30 ° SR and castings were made on a Rapid weighing 100 g / l.
Услбви проведени варочного процесса, качественные показатели получаемых целлюлоз сведены в таблицу.Services of the cooking process, the quality indicators of the obtained pulp are tabulated.
П р и м е ч а н и е: Степень помола по известному способу - 60° ШР, латаемому - 30° ШР.N ote: The degree of grinding by a known method - 60 ° SR, Lata - 30 ° SR.
Как видно из таблицы, использование предлагаемого способа по сравнению с известным обеспечивает следующие преимущества:As can be seen from the table, the use of the proposed method in comparison with the known provides the following advantages:
1.Повышение выхода целлюлозы на 10%;1. Increase the yield of cellulose by 10%;
2.Сокращение общей продолжительности варки более чем в 1,5-2 раза;2. Reducing the total duration of cooking more than 1.5-2 times;
3.Уменьшение расхода химикатов на зарку.3. Reducing the consumption of chemicals in the dough.
Кроме того, предлагаемый способ позвол ет получить за сравнительно непродолжительное врем экстракт древесины лиственницы, вл ющийс цепным сырьем дл дальнейщей переработки.In addition, the proposed method allows obtaining for a relatively short time a larch wood extract, which is a chain raw material for further processing.
но предВодно-теплова обработка лиственничной щепы может быть осуществлена в непрерывно действующих наклонных шиековых аппаратах, а варка целлюлозы в аппаратах типа «Камюр.but the pre-Warm heat treatment of larch chips can be carried out in continuously operating inclined cupboards, and pulping in apparatus of the type “Kamur.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792715595A SU827658A1 (en) | 1979-01-24 | 1979-01-24 | Method of obtaining sulphate pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792715595A SU827658A1 (en) | 1979-01-24 | 1979-01-24 | Method of obtaining sulphate pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU827658A1 true SU827658A1 (en) | 1981-05-07 |
Family
ID=20806365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792715595A SU827658A1 (en) | 1979-01-24 | 1979-01-24 | Method of obtaining sulphate pulp |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU827658A1 (en) |
-
1979
- 1979-01-24 SU SU792715595A patent/SU827658A1/en active
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