Long chain ether compositions may comprise at least one long chain ether of general Formula I: ##STR00001##
wherein R.sub.1 and R.sub.2 are independently selected from C.sub.5-C.sub.21 linear or branched alkyl and C.sub.5-C.sub.21 linear or branched alkenyl, and R.sub.1 and R.sub.2 are the same or different, and R is selected from linear or branched alkyl having up to 52 carbon atoms and linear or branched alkenyl having up to 52 carbon atoms. In an embodiment, long chain ether compositions of matter such as those disclosed herein may find applications as lubricants.

Long chain ether compositions may comprise at least one long chain ether of general Formula I: ##STR00001##
wherein R.sub.1 and R.sub.2 are independently selected from C.sub.5-C.sub.21 linear or branched alkyl and C.sub.5-C.sub.21 linear or branched alkenyl, and R.sub.1 and R.sub.2 are the same or different, and R is selected from linear or branched alkyl having up to 52 carbon atoms and linear or branched alkenyl having up to 52 carbon atoms. In an embodiment, long chain ether compositions of matter such as those disclosed herein may find applications as lubricants.

Long chain ether compositions may comprise at least one long chain ether of general Formula I: ##STR00001##
wherein R.sub.1 and R.sub.2 are independently selected from C.sub.5-C.sub.21 linear or branched alkyl and C.sub.5-C.sub.21 linear or branched alkenyl, and R.sub.1 and R.sub.2 are the same or different, and R is selected from linear or branched alkyl having up to 52 carbon atoms and linear or branched alkenyl having up to 52 carbon atoms. In an embodiment, long chain ether compositions of matter such as those disclosed herein may find applications as lubricants.

A process produces sodium and/or potassium alkoxides in countercurrent by reactive rectification. Alcohol is reacted in countercurrent with the respective alkali metal hydroxide. The vapours containing alcohol and water are separated in at least two serially arranged rectification columns. The energy of the vapour obtained in the second rectification is utilized for operating the first rectification. This specific energy integration coupled with establishing a certain pressure difference in the two rectification stages makes it possible to cover a particularly large proportion of the energy required for the rectification through heating steam and minimizes the use of electricity.

A process produces sodium and/or potassium alkoxides in countercurrent by reactive rectification. Alcohol is reacted in countercurrent with the respective alkali metal hydroxide. The vapours containing alcohol and water are separated in at least two serially arranged rectification columns. The energy of the vapour obtained in the second rectification is utilized for operating the first rectification. This specific energy integration coupled with establishing a certain pressure difference in the two rectification stages makes it possible to cover a particularly large proportion of the energy required for the rectification through heating steam and minimizes the use of electricity.

The invention relates to a process for manufacturing bis(fluoro sulfonyl)imide salt(s) (MFSI) comprising at least a step of reacting an ammonium salt of bis(fluorosulfonyl)imide (NH.sub.4FSI) with a fluorine-containing alkoxide. The invention also relates to a process for preparing the fluorine-containing alkoxide.

The invention provides a metal alkoxide complex of Formula (I), wherein X, M, R1, R2, R3, m, n, y and z are as defined in the Description. The invention also provides a catalyst composition comprising the metal alkoxide complex and a hydroxy-containing compound, wherein the molar ratio of the metal alkoxide complex to the hydroxy-containing compound is 1:0.1-1000. The invention also provides a production method of poly--caprolactone or polyactide, wherein an -caprolactone monomer or a lactide monomer is reacted in the presence of the metal alkoxide complex or catalyst composition to obtain poly--caprolactone or polylactide. The metal alkoxide complex and the catalyst composition thereof can be used to catalyze the synthesis of poly--caprolactone or polylactide with a high efficiency. The molecular weight of polycaprolactone or polylactide can be controlled by the molar ratio of the metal alkoxide complex and the hydroxy-containing compound, and is adjustable in the range of 1000-600,000, and wherein the molecular weight distribution is from 1.03 to 1.50.
[X.sub.n-mM(OCR.sub.1R.sub.2R.sub.3).sub.m].sub.y.(organic solvent).sub.z (I)

The invention provides a metal alkoxide complex of Formula (I), wherein X, M, R1, R2, R3, m, n, y and z are as defined in the Description. The invention also provides a catalyst composition comprising the metal alkoxide complex and a hydroxy-containing compound, wherein the molar ratio of the metal alkoxide complex to the hydroxy-containing compound is 1:0.1-1000. The invention also provides a production method of poly--caprolactone or polyactide, wherein an -caprolactone monomer or a lactide monomer is reacted in the presence of the metal alkoxide complex or catalyst composition to obtain poly--caprolactone or polylactide. The metal alkoxide complex and the catalyst composition thereof can be used to catalyze the synthesis of poly--caprolactone or polylactide with a high efficiency. The molecular weight of polycaprolactone or polylactide can be controlled by the molar ratio of the metal alkoxide complex and the hydroxy-containing compound, and is adjustable in the range of 1000-600,000, and wherein the molecular weight distribution is from 1.03 to 1.50.
[X.sub.n-mM(OCR.sub.1R.sub.2R.sub.3).sub.m].sub.y.(organic solvent).sub.z (I)

The invention provides a metal alkoxide complex of Formula (I), wherein X, M, R1, R2, R3, m, n, y and z are as defined in the Description. The invention also provides a catalyst composition comprising the metal alkoxide complex and a hydroxy-containing compound, wherein the molar ratio of the metal alkoxide complex to the hydroxy-containing compound is 1:0.1-1000. The invention also provides a production method of poly--caprolactone or polyactide, wherein an -caprolactone monomer or a lactide monomer is reacted in the presence of the metal alkoxide complex or catalyst composition to obtain poly--caprolactone or polylactide. The metal alkoxide complex and the catalyst composition thereof can be used to catalyze the synthesis of poly--caprolactone or polylactide with a high efficiency. The molecular weight of polycaprolactone or polylactide can be controlled by the molar ratio of the metal alkoxide complex and the hydroxy-containing compound, and is adjustable in the range of 1000-600,000, and wherein the molecular weight distribution is from 1.03 to 1.50.
[X.sub.n-mM(OCR.sub.1R.sub.2R.sub.3).sub.m].sub.y.(organic solvent).sub.z (I)

The present disclosure relates to microporous magnesium alkoxide and its preparation. The magnesium alkoxide of the present disclosure is characterized by mean particle size ranging from 20 to 70; surface area ranging from 1 to 30 m.sup.2/g; circularity ranging from 0.5 to 0.9; macro pore size distribution ranging from 40 to 80%; meso pore size distribution ranging from 15 to 60%; and micro pore size distribution ranging from 2 to 10%.