GB802860A - Refining alcohols - Google Patents
Refining alcoholsInfo
- Publication number
- GB802860A GB802860A GB1094557A GB1094557A GB802860A GB 802860 A GB802860 A GB 802860A GB 1094557 A GB1094557 A GB 1094557A GB 1094557 A GB1094557 A GB 1094557A GB 802860 A GB802860 A GB 802860A
- Authority
- GB
- United Kingdom
- Prior art keywords
- borohydride
- sodium borohydride
- alcohol
- treated
- colour
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
- D01G15/62—Slubbing-winding apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Water-immiscible synthetic C4-C15 alcohols, produced by reaction of mixtures containing carbon monoxide and hydrogen, are contacted with an alkali metal (or ammonium) borohydride or an alkaline earth metal borohydride to destroy undesirable impurities. The process is applicable to alcohols obtained by the Fischer-Tropsch and oxo processes. The purification may be carried out simultaneously with a distillation whereby the purified alcohol is separated from the crude alcohol feedstock, or may be used as a finishing process to improve the colour and remove colour-forming impurities from the previously distilled alcohol. The purified alcohols may be used to produce esters of improved colour or alternatively the borohydride may be added to the esterification mixture. The preferred borohydrides are those of lithium, sodium, potassium, calcium, magnesium and barium. The borohydrides may be used in the form of a dilute aqueous solution. If used in the solid form they may be mixed with an inert filtering medium such as clay or diatomaceous earth. A polyvalent metal halide, e.g. the chloride or bromide of calcium, aluminium, gallium, titanium or zirconium, may also be present. In the examples: (a) crude isooctylalcohol obtained by the oxo process is heated with sodium borohydride; (b) a crude C8 alcohol obtained by the oxo process is treated with (i) sodium borohydride, (ii) lithium borohydride, and (iii) a mixture of calcium chloride and sodium borohydride; (c) octyl alcohol obtained by the oxo process is treated with potassium borohydride; (d) octyl alcohol obtained by the oxo process is treated with sodium borohydride; the purified alcohol is esterified with phthalic acid in the presence of a trace of sulphuric acid; (e) octyl alcohol obtained by reacting carbon monoxide and hydrogen with a heptene fraction in the presence of a cobalt catalyst is treated with sodium borohydride; and (f) octyl alcohol obtained by the oxo process is esterified with phthalic anhydride, using sulphuric acid as catalyst, in the presence of sodium borohydride. In each case the colour of the product is improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1094557A GB802860A (en) | 1957-04-03 | 1957-04-03 | Refining alcohols |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1094557A GB802860A (en) | 1957-04-03 | 1957-04-03 | Refining alcohols |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB802860A true GB802860A (en) | 1958-10-15 |
Family
ID=9977188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1094557A Expired GB802860A (en) | 1957-04-03 | 1957-04-03 | Refining alcohols |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB802860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3373174A (en) * | 1964-12-17 | 1968-03-12 | Armour & Co | A method for improving color and the color and odor stability of fatty amides |
| US4959468A (en) * | 1987-06-12 | 1990-09-25 | Henkel Kommanditgesellschaft Auf Aktien | Color stabilization method for glycoside products |
-
1957
- 1957-04-03 GB GB1094557A patent/GB802860A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3373174A (en) * | 1964-12-17 | 1968-03-12 | Armour & Co | A method for improving color and the color and odor stability of fatty amides |
| US4959468A (en) * | 1987-06-12 | 1990-09-25 | Henkel Kommanditgesellschaft Auf Aktien | Color stabilization method for glycoside products |
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