CD Skripsi

Pengaruh Waktu Dan Konsentrasi Polietilen Glikol Dalam Proses Presipitasi Silika Dari Pomfa (Palm Oil Mill Fly Ash)

---

Silica precipitation synthesis has been carried out from palm oil fly ash waste by using polyethylene glycol as dispersant. This study aims to determine the effect of time and concentration of polyethylene glycol (PEG) on yield and diameter size of silica primary particles on the silica precipitation process from POMFA. Silica is obtained by sodium silicate solution (Na2SiO3) added with PEG-400 then heated at 70°C, then precipitated using CO2 with a flow rate of 300 ml / minute, and stirring speed of 1000 RPM, with a time variation of 90, 120, 150 and 180 minutes and variations in PEG concentrations of 5%, 10%, 15% and 20%. The silica obtained is separated by filter paper and washed with warm distilled water and oven at 105°C until the weight is constant. The resulting silica is XRD tested to determine the structure and size of silica and XRF test to determine the composition and purity of silica. The best time obtained from the precipitation process was at 180 minutes with silica yield of 84.27%, and for the smallest diameter silica primary particle size was obtained with the use of 5% PEG is 19.11 nm.

Keywords: Precipitation, Polyethylene Glycol, Silica, yield

---

Ketersediaan

Informasi Detail

Judul Seri

-

No. Panggil

07 02. 119 (0115)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia., 2019

Deskripsi Fisik

vi, 71 hlm.; ill.; 29 cm

Bahasa

Indonesia

ISBN/ISSN

-

Klasifikasi

07 02. 119 (0115)

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

KIMIA

Info Detail Spesifik

-

Pernyataan Tanggungjawab

DAUS

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar