4826-87-3

Usage

Uses

Used in Textile Industry:
2-ethyl-2-[[(1-oxooctyl)oxy]methyl]-1,3-propanediyl dioctanoate is used as a synthetic fiber processing lubricant for its low viscosity and high temperature stability. It is particularly effective in low to moderate denier polyester and nylon filament and staple yarn applications, enhancing the processing efficiency and quality of the final product.

InChI:InChI=1/C30H56O6/c1-5-9-12-15-18-21-27(31)34-24-30(8-4,25-35-28(32)22-19-16-13-10-6-2)26-36-29(33)23-20-17-14-11-7-3/h5-26H2,1-4H3

Upstream product

• 77-99-6 1,1,1-tri(hydroxymethyl)propane 
• 124-07-2 Octanoic acid 
• 59359-44-3 2-ethyl-2-(hydroxymethyl)-1,3-propanediol 

Relevant academic research and scientific papers

Synthesis of trimethylolpropane esters with immobilized lipase from Candida sp. 99-125

The lubricants of the future have to be more environmentally adapted, have a higher level of performance. Synthesis esters (SEs) which can be used as raw materials for biodegradable lubricant base oils are increasing in popularity due to superior technical properties. Direct esterification of trimethylolpropane (TMP) with fatty acid in a solvent free system, by immobilized lipase from Candida sp. 99-125 was studied. Investigations of important factors were carried out involving temperature, time, enzyme amount, substrates molar ratio and water content. For 2 g caprylic acid, under the optimal conditions, with 0.4 g immobilized lipase, at substrates molar ratio 1:10 (TMP to acid), temperature 40 °C and water content controlled under 0.8% (w/w), the total conversion of fatty acid with TMP reached up to 96% and the formation of trisubstituted TMP esters reached 93%. Water content controlled during esterification process was found to be critical for high yield of direct esterification.

Ester compound as well as preparation method and application thereof

The invention provides an ester compound as well as a preparation method and application thereof. The structure of the ester compound is as follows: in the formula (I), each R0 is the same as or different from each other and is independently selected from C1-4 alkylene; R1, R2 and R3 are respectively and independently selected from C6-8 alkyl and C15-19 alkyl, at least one group is selected from C6-8 alkyl, and at least one group is selected from C15-19 alkyl; and R' is a C1-6 alkyl group. The ester compound can be used as lubricating base oil. The ester compound has a high viscosity index anda low pour point; the viscosity at 40 DEG C is between 40.5 mm 2/s and 45.5 mm 2/s; the viscosity at 100 DEG C is 8.61-9.23 mm 2/s, the viscosity index is about 200, the pour point is less than -45 DEG C, and the total acid value is less than 0.5 mgKOH/g. The normal starting performance at a low temperature and the lubricating performance at a high temperature can be ensured, and the stability ofrelated mechanical working conditions is ensured.

Subsititue Material As Well As Production Process And Application

The invention relates to a production process of a functionalized material containing acid groups and an application thereof. The material is used as a nonhomogenous catalyst, and can be used for removing organic and inorganic compounds in product streams, process streams and waste liquid, or can be used as a cation and anion exchanger, a metal chromatography material, a solid phase purifying or extracting material, a fixed biological moleculaar material, a solid phase sythesizing material and a chromatography material. The invention also relates to a novel sulfonic acid or hypophosphorous organic funtionalized silica gel and metal salts thereof.

FUNCTIONALISED MATERIALS, PROCESS FOR THE PRODUCTION AND USES THEREOF

The invention relates both to processes for the production of functionalised materials containing alkyl sulfonic acids groups and their use as heterogeneous catalysts. The invention also relates to precursors of these new products and new organopolysiloxane sulfonic acids.

PROCESS FOR PREPARING BIODEGRADABLE LUBRICANT BASE OILS

The invention discloses an improved process for preparing fatty acid esters with 100 mol % selectivity suitable as biodegradable lubricant base oils, comprising contacting a fatty compound with an alcohol in presence of a solid, phosphonate catalyst having molecular formula: M(X)2-nYn.mH2O where X refers to phenyl phosphonate, Y refers to HPO42? or HPO32?, M refers to a metal or metalloid ion preferably taken from the group consisting of Zr, Zn, Cd, Al, Sn, La and Ce, the value of n varies from 0.2 to 1.8 and the value of m varies from 0 to 5, wherein the fatty compound is a fatty acid or fatty acid methyl or ethyl ester or vegetable oil or animal fat or their mixture thereof and alcohol is a monohydric alcohol with 6 to 22 carbon atoms or a polyol with at least two hydroxyl groups.

Zirconium phenyl phosphonate phosphite as a highly active, reusable, solid acid catalyst for producing fatty acid polyol esters

The application of zirconium phenyl phosphonate phosphite (ZrPP) as a solid acid catalyst for producing polyol esters by esterification of glycerol or trimethylolpropane with a fatty acid (C8-C18.1) is reported for the first time. ZrPP exhibits high catalytic activity and in particular, (di + tri) esters selectivity (92.3 mol%). These esters of polyols are known for their application as biolubricants. The catalyst prepared using phosphorous acid to phenyl phosphonic acid molar ratio of 3:1 was found superior. The influence of process parameters on activity and selectivity of the catalyst was investigated. ZrPP was reusable in at least three recycling experiments. Hydrophobicity due to exposed phenyl groups on the surface is the possible cause for superior esterification activity of this novel, solid catalyst.

SULFUR-CONTAINING SILANE, FILLED ELASTOMERIC COMPOSITIONS CONTAINING SAME AND ARTICLES MADE THEREFROM

Sulfur-containing silane, and/or the partially to substantially complete hydrolyzate(s) of sulfur-containing silane, of general Formula (1): [Y1SG1SiZθ]m[Y2SG2SiZθZβ]n[Y3SG3SiZβ3]o[Y4SG4SiZβ2X]p[Y5SG5SiZβX2]q[X]r (1) are provided wherein the variables have the values as indicated in the claims.

Synthesis and GC-MS study of fluorinated esters derived from thrimethylolpropane

Zol-gel process was used to synthesize equilibrium mixtures of mono-, di-, and trimester derived from trimethylolpropane and perfluorocarboxylic acids. The elution order of the components of the mixtures from a weakly polar HP-5 column was established. The mass spectra of the synthesized compounds were studied. The GC-MS parameters of the products were compared with the respective parameters of their nonfluorinated analogs. The characteristics of the fluorinated esters have features determined by the esterification degree and the nature of the perfluoroalkyl groups, due to which these compounds can be identified in mixtures.