CD Skripsi

Esterifikasi Asam Palmitat Dengan Gliserol Menggunakan Nades (Natural Deep Eutectic Solvents) Sebagai Katalis

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ABSTRACT
Monoglycerides (MG) and diglycerides (DG) are a group of synthetic emulsifiers
that can be obtained from the process of esterification of fatty acids with glycerol
using deep eutectic solvents (DES) as a catalyst. DES is a system that consists of a
mixture of at least two components, namely hydrogen bond acceptors (HBA) and
hydrogen bond donors (HBD) which form eutectic phases with melting points
lower than the constituent components. The purpose of this study was to
determine the physical and chemical properties of NADES (density, viscosity, pH,
and FTIR), determine the effect of reaction temperature, catalyst weight and HBD
type on reaction conversion. NADES is formed from a mixture of betaine
hydrochloride with citric acid (NADES-1) and betaine hydrochloride with
propionic acid (NADES-2) at 80oC with a stirring speed of 300 rpm at a molar
ratio of HBA / HBD of 1/2. The esterification reaction of palmitic acid with
glycerol takes place at a molar ratio of 1/6, the stirring speed is 300 rpm, the
temperature is 120-180oC and the weight of the catalyst is 1-5% weight (based on
palmitic acid). The composition of MG and DG is determined by GC-MS.
NADES-2 has a simpler HBD structure so it has better catalytic activity than
NADES-1. The reaction conversion increases with increasing catalyst
temperature and weight. The highest reaction conversion (90.34%) was achieved
at a reaction temperature of 180oC using a 5% weight-NADES-2 catalyst. In this
condition MG was obtained with a composition of 72.42% in the emulsifier
product. In addition, this catalyst is also very effective for re-use so it has the
opportunity to be applied in the industry.
Keywords: betaine hydrochloride, esterification, FTIR, GC-MS, NADES.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0003)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Kimia., 2020

Deskripsi Fisik

ix, 77 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0003)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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