SU74026A1 - Methodofsulfitepulping - Google Patents
MethodofsulfitepulpingInfo
- Publication number
- SU74026A1 SU74026A1 SU4600348898A SU348898A SU74026A1 SU 74026 A1 SU74026 A1 SU 74026A1 SU 4600348898 A SU4600348898 A SU 4600348898A SU 348898 A SU348898 A SU 348898A SU 74026 A1 SU74026 A1 SU 74026A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- boiler
- ammonia
- aqueous solution
- cooking
- acid
- Prior art date
Links
Landscapes
- Paper (AREA)
Description
Изобретение относитс ж способам сульфитной варки це/шюлоэы из высокослоистой древесиньиThis invention relates to sulphite pulping processes of high-layered wood
Предлагаемый способ отличаетс от известных тем, что в варочный котел,The proposed method differs from that in that the digester,
после заполнени его щепой сосновой дре весины и пропариванн щепы дл удалени из нее воздуха накачиваетс нейтральный 2%-ный водный pacTBcip сульфита аммони . Заварка идет по обычному режиму сульфит ной варки. По достижении температуры 115 С в котел вводитс под давлением жидкий сернистый а1 гидрид в количестве, необходимом дл обеспечени в котле давлени 6-7 атм. Дальнейшее ведение варочного процесса аналогично обычной сульфитной варке еловой древесины. Одновременно должен быть применен способ реге- нерации аммиака.after filling it with pine wood chips and steamed chips, neutral 2% aqueous ammonium sulfite pacTBcip is pumped to remove air from it. The welding proceeds in the usual mode of sulphite cooking. Upon reaching a temperature of 115 ° C, liquid sulfurous a1 hydride is injected into the boiler under pressure in an amount necessary to ensure a pressure of 6-7 atm in the boiler. Further maintenance of the cooking process is similar to conventional sulfite boiling of spruce wood. Simultaneously, the ammonia regeneration method should be applied.
Второй вариант способа предусматривает запшненйе котла сырой щепой и вве дение в котел газообразного аммиака или концентрированного его раствора из расчета ЗО-35 кг аммиака на 1 т целлюлозы. Затем накачиваетс обычна варочна The second variant of the method provides for the smelting of the boiler with raw chips and the introduction into the boiler of gaseous ammonia or its concentrated solution at the rate of 35% of ammonia per 1 ton of pulp. Then the usual boiling is pumped.
кислота с кальциевым или аммиачным основанием .acid with calcium or ammonia base.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4600348898A SU74026A1 (en) | 1946-10-30 | 1946-10-30 | Methodofsulfitepulping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4600348898A SU74026A1 (en) | 1946-10-30 | 1946-10-30 | Methodofsulfitepulping |
Publications (1)
Publication Number | Publication Date |
---|---|
SU74026A1 true SU74026A1 (en) | 1978-09-15 |
Family
ID=20436361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4600348898A SU74026A1 (en) | 1946-10-30 | 1946-10-30 | Methodofsulfitepulping |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU74026A1 (en) |
-
1946
- 1946-10-30 SU SU4600348898A patent/SU74026A1/en active
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