Method for producing low-dosing newsprint paper by using unitary retention and filter aid

The invention discloses a process for producing low definite quantity newsprint paper with monobasic retention and filter aid, the process comprises adopting 5%-15% chemical supergroundwood and 85%-95% void waste newsprint paper pulp to be raw material, only adding polymer K380 to be retention and drainage agent, and producing low definite quantity newsprint paper whose quality reaches and is better than GB/T 1910-2006 newsprint paper standard which is 45g/m2 on a high-speed paper machine. Quantity and dosage of chemical can be reduced through adding monobasic retention and filter aid to produce low definite quantity newsprint paper. The invention reduces environmental contamination when the production cost is lowered, and the production flow and the operation are simplified.

Method for controlling gooey with 100% waste newsprint paper deinked pulp esterase

Method for producing low-dosing newsprint paper by using unitary retention and filter aid

The invention discloses a process for producing low definite quantity newsprint paper with monobasic retention and filter aid, the process comprises adopting 5%-15% chemical supergroundwood and 85%-95% void waste newsprint paper pulp to be used as raw material, only adding polymer K380 retention and drainage agent, and producing low definite quantity newsprint paper whose quality reaches and is better than GB/T 1910-2006 newsprint paper standard which is 45g/m2 on a high-speed paper machine. Quantity and dosage of chemical can be reduced through adding monobasic retention and filter aid to produce low definite quantity newsprint paper. The invention reduces environmental contamination when the production cost is lowered, and the production flow and the operation are simplified.

Making process of acid polishing effluent product

The present invention relates to making method of modified magnesium lignosulfonate dry powder by using acid polishing waste liquid of paper making industry, it is characterized in that calcium hydroxide (or other alkali with similar property), is added into the liquid waste of acid polishing in paper making industry, after reaction is complete, it is concentrated, dried, surface treatment to thedried powder to obtain modified magnesium lignosulfonate powder which can be used as additive of concrete and can effectively raise, antideliquence ability of the concrete.

Making process of acid pulping effluent product

Method for controlling with 100aste newsprint paper deinked pulp esterase

The invention discloses a method that uses esterase obtained by 100 percent deinking and desizing of wasted newspaper controls sticky which mainly aims at producing the low fixed amount newspaper by using the 100 percent deinking and desizing of the wasted newspaper, adopts Optimyze 525 esterase control sticky and produces the newspaper with 45g/mm<2> fixed amount. The invention has the advantages of reducing the dosage of the sticky in the paper pulp, leading the sticky removing rate to be about 20 percent to 40 percent, reinforcing the operating performance of a paper machine, and helping to improve the speed and the output of the paper machine; by adopting deinking and desizing of 100 percent wasted newspaper to make 45g/m<2> lowing amount offset newsprint, the obtained products have good quality, chemical pulp and groundwood pulp which are high in pollution and high consumption are eliminated, the manufactory cost of the pulp material and the processing cost of the water are reduced ...