Ammonium palm kernel sulfate
time:2012-09-27 17:21:26,count:0
Synthesis
Currently, sulfated reaction through continuous reactor (such as: falling film reactor) is the most widely used method for preparing sulfates.
Generally, palm kernel oil alcohol and sulfur trioxide react through reactor, then sodium hydroxide neutralizes, finally obtain product.
US patent 8,921,588 (Process for preparing sulfates and/or sulfonates in a micro-reaction system) presents a synthetic process. Conditions: mole ratio of sulfur trioxide and alcohols or other raw materials: 1:1; temperature: 30-60°C; reactor: falling film reactor.
Quality Standards & Test Methods
1. Physical and chemical indexes
Item
Physical and chemical indexes
68 type
28 type
25 type
Actives, %, ≥
66.0 - 70.0
27.0 - 29.0
24.0 - 26.0
Unsulfated materials, %, ≤
4.0
1.5
1.5
(NH4)2SO4, %, ≤
2.0
1.0
1.0
NH4Cl, %, ≤
0.5
0.3
0.3
pH (25°C, 10% solution)
5.5 - 7.0
5.5 - 7.0
5.5 - 7.0
Test Methods
(1), Actives
GB/T 5173 Surface active agents and detergents-Determination of anionic-active matter by direct two-phase titration procedure
ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
(2), Unsulfated materials
GB/T 11989 Anionic surface active agents - Determination of soluble matter content in light petroleum
ISO 894 Surface active agents -- Technical sodium primary alkylsulphates -- Methods of analysis
(3), (NH4)2SO4
GB/T 6366 Surface active agents - Determination of mineral sulfate content - Titrimetric method
ISO 6844 Surface active agents -- Determination of mineral sulfate content -- Titrimetric method
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