|
FR1510761A
(fr)
*
|
1966-03-03 |
1968-01-19 |
Mo Och Domsjoe Ab |
Procédé pour l'accroissement du rendement de la préparation de pâtes à papier par voie alcaline
|
|
US3470061A
(en)
*
|
1967-03-03 |
1969-09-30 |
Union Camp Corp |
Sodium polysulfide pulping process and regeneration
|
|
US3874991A
(en)
*
|
1968-08-23 |
1975-04-01 |
Westvaco Corp |
Polysulfide impregnation of lignocellulosic materials in a continuous digester
|
|
US3860479A
(en)
*
|
1971-06-18 |
1975-01-14 |
Union Camp Corp |
Catalytic oxidation of alkaline pulping liquor
|
|
US4162187A
(en)
*
|
1974-05-09 |
1979-07-24 |
The Mead Corporation |
Process for production of sodium thiosulfate and sodium hydroxide
|
|
JPS52121501A
(en)
*
|
1976-04-07 |
1977-10-13 |
Mitsubishi Heavy Ind Ltd |
Process and apparatus for removing badly smelling constituents from kraft digesting liquid
|
|
US4153502A
(en)
*
|
1977-05-06 |
1979-05-08 |
Corrosion Service Company Limited |
Process for the production of polysulphide pulping liquor from pulp mill recovery smelt
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|
SE8106203L
(sv)
*
|
1981-10-21 |
1983-04-22 |
Nils V Mannbro |
Sett for polysulfidbehandling av lignocellulosamaterial vid alkalisk massaframstellning
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US4507172A
(en)
*
|
1982-09-16 |
1985-03-26 |
St. Regis Paper Company |
Kraft pulping process
|
|
JPS62247812A
(ja)
*
|
1986-04-18 |
1987-10-28 |
Chiyoda Chem Eng & Constr Co Ltd |
加圧式上向流深層濾過方法及びそれに用いる濾過器
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|
US5082526A
(en)
*
|
1989-01-23 |
1992-01-21 |
Pulp And Paper Research Institute Of Canada |
Process of producing kraft pulping liquor by the oxidation of white liquor in the presence of lime mud
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|
WO2000077295A1
(en)
|
1999-06-15 |
2000-12-21 |
Kawasaki Kasei Chemicals Ltd. |
Digestion method for pulp
|
|
US7534413B2
(en)
*
|
2004-10-29 |
2009-05-19 |
Heritage Environment Services, Llc |
Calcium-sodium polysulfide chemical reagent and production methods
|
|
US20140024093A1
(en)
*
|
2012-03-29 |
2014-01-23 |
Shell Oil Company |
Process for the production of digested biomass useful for chemicals and biofuels
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