SU1164347A1 - Pulp production process - Google Patents
Pulp production process Download PDFInfo
- Publication number
- SU1164347A1 SU1164347A1 SU843709949A SU3709949A SU1164347A1 SU 1164347 A1 SU1164347 A1 SU 1164347A1 SU 843709949 A SU843709949 A SU 843709949A SU 3709949 A SU3709949 A SU 3709949A SU 1164347 A1 SU1164347 A1 SU 1164347A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cellulose
- solution
- impregnating
- sodium carbonate
- sodium
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 4
- 239000001913 cellulose Substances 0.000 claims abstract description 11
- 229920002678 cellulose Polymers 0.000 claims abstract description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 8
- 238000010411 cooking Methods 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 4
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract 4
- 238000010025 steaming Methods 0.000 claims abstract 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims abstract 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 12
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 150000003385 sodium Chemical class 0.000 abstract 1
- 239000002023 wood Substances 0.000 description 7
- 241000218657 Picea Species 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001233887 Ania Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
СПОСОБ ПОЛУЧЕНИЯ ЦЕЛЛЮЛОЗЫ , включаю1ций пропарку исходного целлюлозосодержащего сырь , пропитку раствором карбоната натри при избыточном давлении, удаление отработанного пропиточного раствора и варку с сульфитным варочным раствором , отличающийс тем, что, с целью улучшени прочностных показателей целлюлозы, пропитку раствором карбоната натри осуществл ют в присутствии фурфурола в количестве 0,05-2,00% от массы абсолютно сухого сырь . (Л сA method for producing cellulose, including steaming the raw cellulose-containing raw material, impregnating sodium carbonate with an overpressure, removing the spent impregnating solution, and boiling with a sulphite cooking solution, characterized in that, in order to improve the strength characteristics of cellulose, impregnated with a sodium carbonate solution has been used in the form of a sodium bleach solution. in the amount of 0.05-2.00% by weight of absolutely dry raw materials. (L with
Description
Изобретение относится к целлюлозно-бумажной промышленности и касается способов получения целлюлозы, предназначенной для изготовления различных видов бумаги и картона. 5The invention relates to the pulp and paper industry and relates to methods for producing cellulose intended for the manufacture of various types of paper and cardboard. five
Целью изобретения является улучшение прочностных показателей целлюлозы.The aim of the invention is to improve the strength characteristics of cellulose.
Пример 1. В автоклав емкостью 2,5 л загружают 285 г воз- »0 душно-сухой еловой щепы и в течение 15 мин обрабатывают ее паром при 100-105σ0. Затем в автоклав подают 1650 мл раствора карбоната натрия с концентрацией 25,0 г/л в еди- 15 ницах Na20, . в который добавлен Фурфурол в количестве 0,05% к массе абсолютно сухой древесины. Азотом создают избыточное давление 980 кПа и поддерживают его в течение 2ч. 20Example 1. An autoclave with a capacity of 2.5 liters is charged with 285 g of air- ”0 stuffy-dry spruce chips and for 15 minutes it is treated with steam at 100-105 σ 0. Then 1650 ml of sodium carbonate solution with a concentration of 25, 0 g / l in units of Na 2 0,. to which Furfural is added in the amount of 0.05% to the mass of absolutely dry wood. An overpressure of 980 kPa is created with nitrogen and maintained for 2 hours. 20
Температура обработки 60°С. По окончании обработки отбирают весь стекающий раствор, а в автоклав подают сульфитную кислоту состава: 0,6% Na^O |-------------------------i Способ ;варкиProcessing temperature 60 ° C. At the end of the treatment, the entire flowing solution is taken away, and sulfite acid is fed into the autoclave of the composition: 0.6% Na ^ O | ------------------------- i Method; cooking
А г1 A d 1
ОбщийGeneral
ВЫХОД,% и 7,2% всего 5О2, Содержимое автоклава выдерживают в течение 15 мин при 70°C. Затем за 20 мин температуру поднимают до 145°C (максимальное давление 980 кПа ) и автоклав выдерживают при этой температуре 1 ч 40 мин.Yield,% and 7.2% total 5O 2 , The contents of the autoclave are kept for 15 minutes at 70 ° C. The temperature is then raised to 145 ° C (maximum pressure 980 kPa) in 20 minutes and the autoclave is kept at this temperature for 1 hour and 40 minutes.
Приме р 2. Содово-сульфитную варку древесины ели с добавкой фурфурола 2% к массе абсолютно сухой древесины проводят в условиях примера 1 .Example p 2. Soda-sulfite cooking of spruce wood with the addition of furfural 2% to the mass of absolutely dry wood is carried out under the conditions of example 1.
П р и м е р 3 ( контрольный ). Содово-сульфитную варку древесины ели с добавкой фурфурола 0,01% к массе абсолютно сухой древесины проводят в условиях, аналогичных приведенным в примере 1.PRI me R 3 (control). Soda-sulfite cooking of spruce wood with the addition of furfural 0.01% to the mass of absolutely dry wood is carried out under conditions similar to those given in example 1.
П. р и м е р 4 (контрольный). Содово-сульфитную варку древесины ели с добавкой фурфурола 10% к массе абсолютно сухой древесины проводят в условиях примера 1.P. p and me R 4 (control). Soda-sulfite cooking of spruce wood with the addition of furfural 10% to the mass of absolutely dry wood is carried out under the conditions of example 1.
Показатели полученной целлюлозы приведены в таблице.The indicators of the obtained cellulose are shown in the table.
ЛигФизико-механические свойства.Lig Physical and mechanical properties.
нин, целлюлозы % —-------разрывная длина, мning, cellulose% --------- breaking length, m
СопротивлениеResistance
,х., x.
Содово-Sodov-
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843709949A SU1164347A1 (en) | 1984-01-03 | 1984-01-03 | Pulp production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843709949A SU1164347A1 (en) | 1984-01-03 | 1984-01-03 | Pulp production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1164347A1 true SU1164347A1 (en) | 1985-06-30 |
Family
ID=21107064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU843709949A SU1164347A1 (en) | 1984-01-03 | 1984-01-03 | Pulp production process |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1164347A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997019220A2 (en) * | 1995-11-21 | 1997-05-29 | Pukanov, Vitaly Valerievich | Process for preparing a pulp-cooking solution |
| WO2003006737A1 (en) * | 2001-07-13 | 2003-01-23 | Chempolis Oy | Process for producing pulp |
-
1984
- 1984-01-03 SU SU843709949A patent/SU1164347A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент US № 3617435, кл.162-72, 1978. Авторское свидетельство СССР 520430, кл. D 21 С 1/06, D 21 С 3/04, 1972 (прототип). .- га :;U 1. 4 I . 5налдэ;:3-:А * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997019220A2 (en) * | 1995-11-21 | 1997-05-29 | Pukanov, Vitaly Valerievich | Process for preparing a pulp-cooking solution |
| WO1997019220A3 (en) * | 1995-11-21 | 1997-08-14 | Pukanov Vitaly Valerievich | Process for preparing a pulp-cooking solution |
| WO2003006737A1 (en) * | 2001-07-13 | 2003-01-23 | Chempolis Oy | Process for producing pulp |
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