Precipitation of Silicic Acid from Geothermal Water by Addition of Cethyltrimethylammonium Bromide

Harumi Kitsuki, Takushi Yokoyama, Keisuke Nishu, Chiho Yamanaka, Toshikazu Tarutani, Kanichi Shimada, Shin Shimizu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Effect of cethyltrimethylammonium bromide (CTAB) on the precipitation of silica from geothermal water was examined. CTAB did not react with monosilicic acid and only polysilicic acid was precipitated by CTAB. There was an optimum pH for the precipitation of silica. Polysilicic acid was precipitated more easily with increasing their particle size. In the concentration range of 10-7-10-4mol dm-3of CTAB, the amount of precipitated silica inreased with increasing concentration of CTAB and most of polysilicic acid was precipitated at CTAB concentration of 10-4mol dm-3within 5 min. It is suggested that the decrease in the negative charge on polysilicic acids due to the electrostatic adsorption of cethyltrimethylammonium (CTA+) ions on the surface of polysilicic acids and the hydrophobic interaction between CTA+ions adsorbed on different polysilicic acids accelerate polymerization reaction between polysilicic acids to cause precipitation of silica.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
Journaljournal of the geothermal research society of japan
Volume8
Issue number1
DOIs
Publication statusPublished - Jan 1 1986

Fingerprint

silicic acid
bromide
bromides
acids
acid
water
silica
silicon dioxide
ion
polymerization
ions
particle size
electrostatics
adsorption
causes

All Science Journal Classification (ASJC) codes

  • Geophysics

Cite this

Precipitation of Silicic Acid from Geothermal Water by Addition of Cethyltrimethylammonium Bromide. / Kitsuki, Harumi; Yokoyama, Takushi; Nishu, Keisuke; Yamanaka, Chiho; Tarutani, Toshikazu; Shimada, Kanichi; Shimizu, Shin.

In: journal of the geothermal research society of japan, Vol. 8, No. 1, 01.01.1986, p. 1-14.

Research output: Contribution to journalArticle

Kitsuki, Harumi ; Yokoyama, Takushi ; Nishu, Keisuke ; Yamanaka, Chiho ; Tarutani, Toshikazu ; Shimada, Kanichi ; Shimizu, Shin. / Precipitation of Silicic Acid from Geothermal Water by Addition of Cethyltrimethylammonium Bromide. In: journal of the geothermal research society of japan. 1986 ; Vol. 8, No. 1. pp. 1-14.
@article{3bcda061b3784f9295736c8860819c00,
title = "Precipitation of Silicic Acid from Geothermal Water by Addition of Cethyltrimethylammonium Bromide",
abstract = "Effect of cethyltrimethylammonium bromide (CTAB) on the precipitation of silica from geothermal water was examined. CTAB did not react with monosilicic acid and only polysilicic acid was precipitated by CTAB. There was an optimum pH for the precipitation of silica. Polysilicic acid was precipitated more easily with increasing their particle size. In the concentration range of 10-7-10-4mol dm-3of CTAB, the amount of precipitated silica inreased with increasing concentration of CTAB and most of polysilicic acid was precipitated at CTAB concentration of 10-4mol dm-3within 5 min. It is suggested that the decrease in the negative charge on polysilicic acids due to the electrostatic adsorption of cethyltrimethylammonium (CTA+) ions on the surface of polysilicic acids and the hydrophobic interaction between CTA+ions adsorbed on different polysilicic acids accelerate polymerization reaction between polysilicic acids to cause precipitation of silica.",
author = "Harumi Kitsuki and Takushi Yokoyama and Keisuke Nishu and Chiho Yamanaka and Toshikazu Tarutani and Kanichi Shimada and Shin Shimizu",
year = "1986",
month = "1",
day = "1",
doi = "10.11367/grsj1979.8.1",
language = "English",
volume = "8",
pages = "1--14",
journal = "Journal of the Geothermal Research Society of Japan",
issn = "0388-6735",
publisher = "The Geothermal Research Society of Japan",
number = "1",

}

TY - JOUR

T1 - Precipitation of Silicic Acid from Geothermal Water by Addition of Cethyltrimethylammonium Bromide

AU - Kitsuki, Harumi

AU - Yokoyama, Takushi

AU - Nishu, Keisuke

AU - Yamanaka, Chiho

AU - Tarutani, Toshikazu

AU - Shimada, Kanichi

AU - Shimizu, Shin

PY - 1986/1/1

Y1 - 1986/1/1

N2 - Effect of cethyltrimethylammonium bromide (CTAB) on the precipitation of silica from geothermal water was examined. CTAB did not react with monosilicic acid and only polysilicic acid was precipitated by CTAB. There was an optimum pH for the precipitation of silica. Polysilicic acid was precipitated more easily with increasing their particle size. In the concentration range of 10-7-10-4mol dm-3of CTAB, the amount of precipitated silica inreased with increasing concentration of CTAB and most of polysilicic acid was precipitated at CTAB concentration of 10-4mol dm-3within 5 min. It is suggested that the decrease in the negative charge on polysilicic acids due to the electrostatic adsorption of cethyltrimethylammonium (CTA+) ions on the surface of polysilicic acids and the hydrophobic interaction between CTA+ions adsorbed on different polysilicic acids accelerate polymerization reaction between polysilicic acids to cause precipitation of silica.

AB - Effect of cethyltrimethylammonium bromide (CTAB) on the precipitation of silica from geothermal water was examined. CTAB did not react with monosilicic acid and only polysilicic acid was precipitated by CTAB. There was an optimum pH for the precipitation of silica. Polysilicic acid was precipitated more easily with increasing their particle size. In the concentration range of 10-7-10-4mol dm-3of CTAB, the amount of precipitated silica inreased with increasing concentration of CTAB and most of polysilicic acid was precipitated at CTAB concentration of 10-4mol dm-3within 5 min. It is suggested that the decrease in the negative charge on polysilicic acids due to the electrostatic adsorption of cethyltrimethylammonium (CTA+) ions on the surface of polysilicic acids and the hydrophobic interaction between CTA+ions adsorbed on different polysilicic acids accelerate polymerization reaction between polysilicic acids to cause precipitation of silica.

UR - http://www.scopus.com/inward/record.url?scp=85007850972&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85007850972&partnerID=8YFLogxK

U2 - 10.11367/grsj1979.8.1

DO - 10.11367/grsj1979.8.1

M3 - Article

AN - SCOPUS:85007850972

VL - 8

SP - 1

EP - 14

JO - Journal of the Geothermal Research Society of Japan

JF - Journal of the Geothermal Research Society of Japan

SN - 0388-6735

IS - 1

ER -