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发布日期:2021年12月01日
+7 (495) 789 65 30
Russian Mining Chemical Company Russian Mining Chemical Company Manufacturer of innovative high-Mg products�for industry, agriculture and environment
Main page /Ranges of application / Magnesium hydroxide in the pulp and paper industry
Magnesium hydroxide in the pulp and paper industry
Magnesium hydroxide in the pulp and paper industry

BleachMag® protects cellulose and fibers in mechanical pulp peroxide bleaching and in delignification during chemical pulp bleaching. BleachMag� is a new and efficient reagent based on natural magnesium hydroxide Mg(OH)2. It effectively replaces soda ash Na2CO3, caustic soda NaOH, caustic magnesia MgO, sodium silicate Na2SiO3 and magnesium sulfate MgSO4. BleachMag� improves efficiency as well as product quality and reduces process costs.


Economic savings Production advantages Environment benefits
  • Lower bleaching cost
  • Lower waste water treatment cost
  • Higher pulp yield
  • BleachMag® acts as alkali and magnesium source
  • The liquor preparation and the process itself becomes simpler
  • The pH in pulping remains more stable
  • Drastic reduction of oxalate scaling
  • Improved settling properties of the waste water sludge
  • Reduced TOC, COD and BOD.
  • Safe and easy storage and use
  • Lower chlorine content of BleachMag� compared to competitors

BleachMag� requires no major changes or investments at the pulp, paper, or board mill. �Russian Mining Chemical Company, RMCC, provides BleachMag� as a powder or a 50 % stabilized aqueous dispersion.



Chemical pulping

BleachMag® can be used in sulphite and bisulphate pulping to replace both caustic magnesite, and soda ash or lime. The replacement of soda ash with BleachMag� powder reduces the consumption of chemicals some 30 %.

Chemical pulp bleaching

BleachMag® reacts as an alkali source and cellulose protector in chemical pulp bleaching. BleachMag� slurry contains both hydroxyl ions OH- and magnesium ions Mg2+, so it can replace magnesium sulfate MgSO4, and substitute partially caustic soda NaOH, in chemical pulp bleaching. It has been proved in laboratory and mill that BleachMag� slurry is a cost effective option.

Mechanical pulp bleaching

In bleaching of mechanical pulps, BleachMag® reacts as a stabilizer and an alkali agent. BleachMag is a cost effective alternative to caustic soda and sodium silicate. BleachMag� can be used in all GW, PGW, RMP, TMP, and CTMP high yield mechanical pulp mills. BleachMag� slurry can also improve pulp strength and paper machine retention.

BleachMag�-P
(PDF, 185.79 ��)
BleachMag�-S
(PDF, 185.82 ��)
Packaging
(PDF, 135.78 ��)

Contact us, our experts will provide you with advice on the use of the product

BleachMag®
+7 495 789 65 30 sales@magminerals.ru