Pemurnian Gliserin Dengan Menggunakan Metode Adsorpsi Karbon Aktif Lokal
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Abstract
Pemurnian gliserin dilakukan dengan tiga tahapanreaksi yaitu: acidification,polar solven extraction, dan activated carbon adsoption. Proses pemurnian juga mengoptimasi pengaruh jenis asam (H3PO4, H2SO4dan CH3COOH) pada pH (1–6), jenis pelarut / polar solvent(CH3OH, C2H5OH dan C3H7OH) dengan rasio pelarut organik terhadap gliserin (3:1–1:3 v/v), serta proses adsorpsi karbon aktif dengan perbandingan konsentrasi karbon aktif terhadap gliserin (40–200 g/l).Pemurnian crude glycerin(±82% PT. Wilmar Nabati) telah dilakukan dengan proses adsorpsi karbon aktif lokal.Proses adsorpsi bertujuan untuk menghilangkan senyawa MONG (matter organic non glycerin) dan betha-carotenesebagai komponen warna.Setelah proses adsorpsi diperoleh gliserin dengan kemurnian ±96% (b/v). Untuk mendapatkan kemurnian mencapai 99,8% diperlukan proses distilasi untuk memisahkan impuritas air.
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