One or more concentrated low-viscosity solutions of alkaline earth alkoxide compounds M(OCH.sub.2R.sup.6).sub.2-a-b(OR.sup.7).sub.a[O(CHR.sup.8)OR.sup.9].sub.b in mixture with a metal alkyl compound M(R.sup.10R.sup.11) in an aprotic solvent and related methods are disclosed herein.

The magnesium alkoxide particle contains the reaction product of the following components: 1) a magnesium powder; 2) a mixed alcohol; 3) a halogenating agent; and 4) a titanate compound. The magnesium alkoxide particle is used for preparing a catalyst for olefin polymerization.

The magnesium alkoxide particle contains the reaction product of the following components: 1) a magnesium powder; 2) a mixed alcohol; 3) a halogenating agent; and 4) a titanate compound. The magnesium alkoxide particle is used for preparing a catalyst for olefin polymerization.

One or more concentrated low-viscosity solutions of alkaline earth alkoxide compounds M(OCH.sub.2R.sup.6).sub.2-a-b(OR.sup.7).sub.a[O(CHR.sup.8).sub.nOR.sup.9].sub.b in mixture with a metal alkyl compound M(R.sup.10R.sup.11) in an aprotic solvent and related methods are disclosed herein.

One or more concentrated low-viscosity solutions of alkaline earth alkoxide compounds M(OCH.sub.2R.sup.6).sub.2-a-b(OR.sup.7).sub.a[O(CHR.sup.8).sub.nOR.sup.9].sub.b in mixture with a metal alkyl compound M(R.sup.10R.sup.11) in an aprotic solvent and related methods are disclosed herein.

A process can be used for preparing sodium and potassium alkoxides. The process is characterized by two simultaneously implemented but spatially separated reactions of an alcohol ROH with NaOH, and ROH with KOH, to give sodium alkoxide and potassium alkoxide, respectively. The vapours formed in this case contain the alcohol used and water. The vapours are combined, and the resulting mixed vapour is fed to a common distillation with recovery of the alcohol.

A process can be used for preparing sodium and potassium alkoxides. The process is characterized by two simultaneously implemented but spatially separated reactions of an alcohol ROH with NaOH, and ROH with KOH, to give sodium alkoxide and potassium alkoxide, respectively. The vapours formed in this case contain the alcohol used and water. The vapours are combined, and the resulting mixed vapour is fed to a common distillation with recovery of the alcohol.

The present disclosure relates to the formation of dimethyl terephthalate (DMT). The present invention also relates to the depolymerization of polyethylene terephthalate (PET) and the recovery of terephthalic acid and ethylene glycol.

The present disclosure relates to the formation of dimethyl terephthalate (DMT). The present invention also relates to the depolymerization of polyethylene terephthalate (PET) and the recovery of terephthalic acid and ethylene glycol.

The present disclosure relates to the formation of dimethyl terephthalate (DMT). The present invention also relates to the depolymerization of polyethylene terephthalate (PET) and the recovery of dimethyl terephthalate (DMT).