ZulfansyahFermi, Muhammad IwanAmraini, Said Zul2014-02-042014-02-042014-02-04wahyu sari yenihttps://repository.unri.ac.id/handle/123456789/5484The pulping of oil palm fronds with formic acid medium. has been studied in an effort to develop an efficient and environmentally safe process. This research is conducted to study the effect of pulping conditions on the pulp yield and lignin content. The experiment was run at concentration of formic acid in cooking liquor of 65, 75, 85%-wt, hydrogen peroxide concentration in cooking liquor of 1, 3" 5%-wt, cooking time of 1, 2, and 3 hours. The cooking of oil palm fronds was accelerating in a reactor batch at the boiling temperature of formic acid in standard condition. The effects of dependent variables on the independent variables were studied by statistical modelling using a second-order incomplete factorial design. The emprical models were deduced to satisfactorily fit experimental data with-the values of independent variables and allow quantifiying the effects of each variables. The most influential factor on yield pulp ·wasformic acid concentration. Whereas, the cooking time has greater influence on lignin content.enoil palm frondslingocelulosepulpingpulp organosolvformic acidUR-Scientific Work Lecturer