| 配方类型： |
PAPER |
| 配方说明： |
Ground-Wood Bleach |
| 配方组成： |
The quantity of chemicals to be employed will depend on the wood to
be bleached and on the brightness increase desired. As a typical
example, in recent plant trials, a brightness increase of 9 points was
obtained by use of the following formula in a beater heated with live
steam. Percentages of chemicals are based on the weight of the dry pulp
Sodium Silicate/5.00%
Hydrogen Peroxide/0.91 of H2O2 or 2.6 of 130.0 volume
Epsom Salts/0.02%.
Caustic Soda/1.00% |
|
