| 配方类型： |
MISCELLANEOUS |
| 配方说明： |
Bleaching Ground Wood Pulp |
| 配方组成： |
Caustic Soda/1.0
Magnesium Sulfate/0.05
H2O2/1.5
The amounts can be varied slightly depending on bleaching
temperature and pulp consistency.
In some cases a combination of sodium peroxide and hydrogen peroxide are
used in order to avoid the handling of caustic.
A liquor which is useful for bleaching groundwood pulp on either a
batch or continuous basis is made up as follows (quantities given are
added to water to make a 3,000 gallon batch)
Magnesium Sulfate/20 lb
"N" Sodium Silicate/5.0
"N" Sodium Silicate/3,940 lb
Na2O2/400 lb
H2O2/217 lb |
| 配制方法： |
These materials ar mixed in the order given, and the liquor is used at the rate of 92 gal per ton of dry pulp. |
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