An anti-fouling composition, and uses thereof in the industrial preparation of ethylenically unsaturated monomers comprising at least one heteroatom, such as acrylic monomers are disclosed.

An anti-fouling composition, and uses thereof in the industrial preparation of ethylenically unsaturated monomers comprising at least one heteroatom, such as acrylic monomers are disclosed.

The synthesis of pattern-specific compounds using hypohalites, such as hypochlorous acid, sodium hypochlorite, and potassium hypoiodite, as dual-radical generators is provided. The synthesis can be implemented by a cyclization reaction, a dehydrogenation reaction, a hydroxylation reaction, a decarboxylation reaction, or any combination of the above four. The reactions are typically carried out in water, in a nonpolar solvent such as ethyl acetate, or a mixture of both. Hypochlorous acid is made by adding a weak acid such as acetic acid to sodium hypochlorite.

The synthesis of pattern-specific compounds using hypohalites, such as hypochlorous acid, sodium hypochlorite, and potassium hypoiodite, as dual-radical generators is provided. The synthesis can be implemented by a cyclization reaction, a dehydrogenation reaction, a hydroxylation reaction, a decarboxylation reaction, or any combination of the above four. The reactions are typically carried out in water, in a nonpolar solvent such as ethyl acetate, or a mixture of both. Hypochlorous acid is made by adding a weak acid such as acetic acid to sodium hypochlorite.

A system for producing phenol and bisphenol A comprising: a first production unit for producing phenol comprising a decomposition reaction unit and a purification unit; a second production unit for producing bisphenol A comprising a reaction unit and a concentration unit; and a removal unit for removing methanol and acetone during the production of phenol and bisphenol A. The removal unit includes a removal column comprising an overhead purge part, a bottom recirculation part and a supply part. The supply part comprises a purification unit discharge part to supply methanol, acetone, and water discharged from the purification unit to the removal column and a concentration unit discharge part to supply phenol, acetone, and water discharged from the concentration unit to the removal column, and is provided to the midsection of the removal column.

A system for producing phenol and bisphenol A comprising: a first production unit for producing phenol comprising a decomposition reaction unit and a purification unit; a second production unit for producing bisphenol A comprising a reaction unit and a concentration unit; and a removal unit for removing methanol and acetone during the production of phenol and bisphenol A. The removal unit includes a removal column comprising an overhead purge part, a bottom recirculation part and a supply part. The supply part comprises a purification unit discharge part to supply methanol, acetone, and water discharged from the purification unit to the removal column and a concentration unit discharge part to supply phenol, acetone, and water discharged from the concentration unit to the removal column, and is provided to the midsection of the removal column.

The present invention relates to solid compositions comprising cocrystals of cannabinoids, processes for their preparation, and their use as in therapy or in cosmetics or for the purification of cannabinoids. It also relates to cocrystals of cannabinoids.

The present invention relates to solid compositions comprising cocrystals of cannabinoids, processes for their preparation, and their use as in therapy or in cosmetics or for the purification of cannabinoids. It also relates to cocrystals of cannabinoids.

The present disclosure provides a preparation method of resveratrol nervonic acid ester, comprising the following steps of: step 1: weighing resveratrol, a nervonic acid and thiocarbonyldiimidazole according to a molar ratio of 1:1:0.8 to 1:7:11.2 in a reactor; step 2: adding a certain amount of solvent into the reactor to completely dissolve the reactants; and step 3: stirring for reaction at room temperature for 30 min to 180 min. The preparation method is safe, efficient and clean, and enables synthesis of the resveratrol nervonic acid ester with high conversion rate, high purity and high yield.

The present disclosure provides a preparation method of resveratrol nervonic acid ester, comprising the following steps of: step 1: weighing resveratrol, a nervonic acid and thiocarbonyldiimidazole according to a molar ratio of 1:1:0.8 to 1:7:11.2 in a reactor; step 2: adding a certain amount of solvent into the reactor to completely dissolve the reactants; and step 3: stirring for reaction at room temperature for 30 min to 180 min. The preparation method is safe, efficient and clean, and enables synthesis of the resveratrol nervonic acid ester with high conversion rate, high purity and high yield.