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SUMMARY

PENGARUH SUHU DAN LAMA REAKSI PADA TAHAP PEMBENTUKANASAM REAKSI ESTERIFIKASI DALAM PEMBUATAN METIL ESTER ASAM

LEMAK

THE EFFECT OF TEMPERATURE AND TIME REACTION ON PROCEEDING STEP OF FREE ACIDESTERIFICATION ON FATTY ACID METHYL ESTHER PRODUCTION

Created by Anggreni, Fitria Wahyu

Subject : Acids

Keyword : : esterifikasi; hidrolisis; BF3-Metanol

Description :Penelitian ini bertujuan mengetahui pengaruh suhu danlama reaksi pada tahap pembentukan asam reaksi esterifikasidalam pembuatan metil ester asam lemak (metil ester). Tahappembentukan asam dilakukan melalui hidrolisis minyak denganlarutan KOH-isopropanol, kemudian garam asam lemak yangdidapatkan dihidrolisis kembali dengan asam untuk mendapatkanasam lemak. Peningkatan suhu meununjukkan peningkatanjumlah produk asam lemak (Suhu 85oC memberikan rasio produk: reaktan(%hasil) sebesar 86,71%). Sementara semakin lamareaksi produk yang didapat makin berkurang. Produk palingbanyak didapatkan pada waktu reaksi 20 menit. Metil esterdidapatkan dari esterifikasi asam lemak menggunakan BF3-metanol. Rasio produk : reaktan hasil esterifikasi asam lemakmenjadi metil ester adalah sebesar 97,65% sedang secarakeseluruhan penggunaan metode ini telah merubah minyakmenjadi metil ester asam lemak dengan rasio produk:reaktansebesar 85,6%. Hasil ini lebih besar bila dibandingkan denganmetode transesterifikasi menggunakan katalis NaOH (82,33%)

Description Alt:The purpose of this research is to capture the effect oftemperature and time reaction of proceeding step of free acidesterification on fatty acid metic ester (FAME) production. Theproceeding step of free acid esterification was done by oilhydrolisis using KOH-isopropanol liquid, and then the fatty acidsalt product was rehydrolize to obtain the fatty acid. Theincreasing of temperature shows the increasing amaunt of thefatty acid product (ratio product : reactant or %yield at 85 oC ishighest (86,71%)). Meanwhile, the longer of the reaction, thelesser amount of the product. At 20 minutes gives higest yield.The methyl ester was obtained from fatty acid esterification usingBF3-metanol. The ratio product : reactant of fatty acid convertioninto methyl ester is 96,71 % FAME. And this method also able tochange the oil into fatty acid in the ratio product : reactant of

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85,6% FAME. This result is higher than the transesterificationusing catalysts NAOH (82,33%)

Contributor : DR. Surya Rosa Putra, MS

Date Create : 17/06/2009

Type : Text

Format : pdf.

Language : Indonesian

Identifier : ITS-Undergraduate-3100008033416

Collection : 3100008033416

Call Number : RSKi 546.24 Ang p

Source : Undergraduate These of Chemistry Departement, RSKi 546.24 Ang p, 2008

COverage : ITS Community Only

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