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All Journal Warta IHP (Warta Industri Hasil Pertanian)
Aziz Darwis, Abdul
Balai Besar Industri Agro
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

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(The Effect of Acetate Anhhhydrida Ratio in the Process of Cellulose Acetylation of Pulp from Sengon (Paraserianthe falcataria) on the Production of Cellulose Triacetate Polymer) Meurah Rosnelly, Cut; Aziz Darwis, Abdul; Noor, Erliza; -, Kaseno
Warta Industri Hasil Pertanian Vol 27, No 01 (2010)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6159.962 KB)

Abstract

Almost all of Cellulose acetate is produced by reaction of cellulose and acetic anhydride using strong acids as catalyst and acetic acid as a solvent. A typical industrial process requires very high quality cellulose raw materials having a high a-cellulose content. The cellulose used as a raw material in this research is wood pulp of sengon (Paraserianthes falcataria) due to fast growing species and has potential used as a raw material as if has a high cellulose content. The main objective of this research was to obtain condition for making cellulose triacetate by applying applying ratio levels of acetic anhydride toward cellulose in acetylation process. Cellulose triacetate flake was produced by activation and acetylation process. Activation was carried out by mixing cellulose of sengon pulp with glacial acetic in proportion  1:8 at 50oC about 15; 30; 60; 90, and 120 minutes. Acetylation is then conducted using reagents in following proportions relative to the pulp mass; variable of acetic anhydride ratio (3.35:1), (4:1), (5:1), and (6:1), acetic acid as solvent (4.5 : 1), sulfuric acid (0.015 : 1) as catalyst while controlling the reaction temperature at 50oC for 60 minutes. The result showed anhydride toward cellulose 3.35 in acetylation process.
(Study on the Effects of Agitating Duration and the Ration of Sulfuric Acid on the Preparation of Sulphated Shark Liver Oil as Fat Liquor) Djubaedah, Endah; Moestafa, Achmad; Hafid, Raoda; Aziz Darwis, Abdul
Warta Industri Hasil Pertanian Vol 20, No 1-2 (2003)
Publisher : Balai Besar Industri Agro

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Abstract

Study on the effects of agitating duration and the ratio of sulphuric acid on the preparation of sulphated shark oil as fat liquor had been carried out .the aimof the experiment was to introduce sulphuric acid that will be absorbed into the molecule chain of fatty acid cpmpletely and produced sulphated oil .the experiment was conducted in there variables of agitating duration (A) i.e:4,5 and 6 hours and the ration of sulphuric acid introduced and the ration of acid/oil was : agitationfor 6 hours and 40% of sulphuric acid ration or A3B3 combination .the sulphated oil has 96.77 lodine number saponification number 209.68 and 1.665 fixed S03 .the lower lodine number showed most double bond chain of the oil had been occupied by sulphate groups ,the higher saponification numbershowed the amout of sulphate group in the fatty oil chain ,the same as showed by the fixed S03 .it is concluded that agitating duration or mixing time and ratio sulphuric  acid to the shark liver oil to give significant effect on sulphated shark liver oil formed.
(The Effect of Acetate Anhhhydrida Ratio in the Process of Cellulose Acetylation of Pulp from Sengon (Paraserianthe falcataria) on the Production of Cellulose Triacetate Polymer) Meurah Rosnelly, Cut; Aziz Darwis, Abdul; Noor, Erliza; -, Kaseno
Warta Industri Hasil Pertanian Vol 27, No 01 (2010)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6159.962 KB) | DOI: 10.32765/warta ihp.v27i01.2585

Abstract

Almost all of Cellulose acetate is produced by reaction of cellulose and acetic anhydride using strong acids as catalyst and acetic acid as a solvent. A typical industrial process requires very high quality cellulose raw materials having a high a-cellulose content. The cellulose used as a raw material in this research is wood pulp of sengon (Paraserianthes falcataria) due to fast growing species and has potential used as a raw material as if has a high cellulose content. The main objective of this research was to obtain condition for making cellulose triacetate by applying applying ratio levels of acetic anhydride toward cellulose in acetylation process. Cellulose triacetate flake was produced by activation and acetylation process. Activation was carried out by mixing cellulose of sengon pulp with glacial acetic in proportion  1:8 at 50oC about 15; 30; 60; 90, and 120 minutes. Acetylation is then conducted using reagents in following proportions relative to the pulp mass; variable of acetic anhydride ratio (3.35:1), (4:1), (5:1), and (6:1), acetic acid as solvent (4.5 : 1), sulfuric acid (0.015 : 1) as catalyst while controlling the reaction temperature at 50oC for 60 minutes. The result showed anhydride toward cellulose 3.35 in acetylation process.
Co-Authors -, Kaseno Cut Meurah Rosnelly Djubaedah, Endah Erliza Noor Hafid, Raoda Moestafa, Achmad