Details
| Original language | English |
|---|---|
| Pages (from-to) | 525-537 |
| Number of pages | 13 |
| Journal | Clay minerals |
| Volume | 44 |
| Issue number | 4 |
| Publication status | Published - Dec 2009 |
Abstract
The main physico-chemical properties of a new smectitic clay containing large amounts of amorphous material are reviewed and potential industrial applications of this type of clay are discussed. Due to a 34% amorphous material content (natural silica gel), the investigated clay has very high porosity and can be used as it is or in acid-impregnated form for oil bleaching or phosphate reduction in edible oil. In the field of biodiesel purification, the new clay can be used to remove, in particular, mono-, diglycerides and glycerol. The natural silica-smectite mixture is also suitable as a carrier for liquid ingredients, for example in animal feeds, and might serve as a partial or complete substitute for synthetic precipitated silicas. In the field of bioseparation processes, the clay can be used as an adsorbent for protein separation by means of cation exchange. Due to the suppressed swelling (compared with smectite alone), it can be packed in columns which can be regenerated.
Keywords
- Biodiesel, Bioseparation, Bleaching earth, Carrier, Clay, Degumming, Montmorillonite, Smectite
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geochemistry and Petrology
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In: Clay minerals, Vol. 44, No. 4, 12.2009, p. 525-537.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Natural mixture of silica and smectite as a new clayey material for industrial applications
AU - Sohling, U.
AU - Ruf, F.
AU - Schurz, K.
AU - Emmerich, K.
AU - Steudel, A.
AU - Schuhmann, R.
AU - Weidler, P.
AU - Ralla, K.
AU - Riechers, D.
AU - Kasper, C.
AU - Scheper, T.
PY - 2009/12
Y1 - 2009/12
N2 - The main physico-chemical properties of a new smectitic clay containing large amounts of amorphous material are reviewed and potential industrial applications of this type of clay are discussed. Due to a 34% amorphous material content (natural silica gel), the investigated clay has very high porosity and can be used as it is or in acid-impregnated form for oil bleaching or phosphate reduction in edible oil. In the field of biodiesel purification, the new clay can be used to remove, in particular, mono-, diglycerides and glycerol. The natural silica-smectite mixture is also suitable as a carrier for liquid ingredients, for example in animal feeds, and might serve as a partial or complete substitute for synthetic precipitated silicas. In the field of bioseparation processes, the clay can be used as an adsorbent for protein separation by means of cation exchange. Due to the suppressed swelling (compared with smectite alone), it can be packed in columns which can be regenerated.
AB - The main physico-chemical properties of a new smectitic clay containing large amounts of amorphous material are reviewed and potential industrial applications of this type of clay are discussed. Due to a 34% amorphous material content (natural silica gel), the investigated clay has very high porosity and can be used as it is or in acid-impregnated form for oil bleaching or phosphate reduction in edible oil. In the field of biodiesel purification, the new clay can be used to remove, in particular, mono-, diglycerides and glycerol. The natural silica-smectite mixture is also suitable as a carrier for liquid ingredients, for example in animal feeds, and might serve as a partial or complete substitute for synthetic precipitated silicas. In the field of bioseparation processes, the clay can be used as an adsorbent for protein separation by means of cation exchange. Due to the suppressed swelling (compared with smectite alone), it can be packed in columns which can be regenerated.
KW - Biodiesel
KW - Bioseparation
KW - Bleaching earth
KW - Carrier
KW - Clay
KW - Degumming
KW - Montmorillonite
KW - Smectite
UR - http://www.scopus.com/inward/record.url?scp=77049095427&partnerID=8YFLogxK
U2 - 10.1180/claymin2009.044.4.525
DO - 10.1180/claymin2009.044.4.525
M3 - Article
AN - SCOPUS:77049095427
VL - 44
SP - 525
EP - 537
JO - Clay minerals
JF - Clay minerals
SN - 0009-8558
IS - 4
ER -