Modified adsorbent, refined grease and preparation method thereof
A technology for refining oil and adsorbent, applied in the field of refined oil and its preparation, modified adsorbent, and can solve problems such as poor effect
Pending Publication Date: 2020-10-27
HUBEI GEDIAN HUMANWELL PHARMA EXCIPENTS
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Abstract
The invention discloses a modified adsorbent, refined grease and a preparation method thereof. The preparation method of the modified adsorbent comprises the following steps: mixing a suspension of layered double hydroxides with a solution of reducing salt for the first time, and then mixing with a decolorizing adsorbent for the second time, wherein the mass molar ratio of the layered double hydroxide to the reducing salt is 100: 1-300: 1, the mass ratio of the layered double hydroxide to the decolorizing adsorbent is 3: 1-5: 1, and the reducing salt comprises sulfite and/or nitrite. The modified adsorbent can reduce the acid value, chroma, peroxide value and other parameters in the grease at the same time, and the purity of the obtained grease is better.
Application Domain
Other chemical processesFatty-oils/fats refining +1
Technology Topic
Nitrite saltSulfite salt +4
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- Experimental program(14)
- Comparison scheme(7)
- Effect test(1)
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