Abstract
The amount of production of the hydrogen peroxide in the year 2000 was 145, 744 t. The demand for pulp is 71, 237 t and the ratio has reached 48. 9%. Also, about 60% of the demand for this pulp has been estimated as demand for recycled pulp. Therefore, recycled pulp is an important field of the hydrogen peroxide market.Seven kinds of oxidizing agent (chlorine, hypochlorite. chlorine dioxide, hydrogen peroxide, oxygen, ozone, peracetic acid), three kinds of reducing agent (sodium hydrosulfite, sodium borohydride. formamidine sulfinic acid) were described and especially hydrogen peroxide, sodium hydrosulfite, and formamidine sulfinic acid were described in detail as important bleaching agent.Concerning hydrogen peroxide, the influence of metals, the heat of kneader and catalase were described. The preventative measures were also described.Concerning sodium hydrosulfite, the decomposition by air, water and combustion by water were described. As a measure, “HS master”, which can dissolve sodium hydrosulfite continuously in nitrogen gas atmosphere and can feed it to the pulp bleaching site was introduced. “HS master” was developed by Mitsubishi Gas Chemical.Concerning formamidine sulfinic acid, the “Fosble System” which is able to manufacture it on-site was introduced. The “Fosble System” was developed by Mitsubishi Gas Chemical.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
