Purac Biochem Bv

Raymon Frediansyah

André Banier De Haan

Andre Banier De Haan

Johannes Jeichienus De Vries

Magnesium chloride solutions including providing aqueous magnesium chloride solution with magnesium chloride concentration of 10-30 wt. % to concentration step where water is evaporated, resulting in concentrated magnesium chloride solution with magnesium chloride concentration of 30-50 wt. %, wherein concentration step is carried out in one or more stages, wherein at least one of the stages is conducted at elevated pressure, withdrawing concentrated magnesium chloride solution from concentration step, and providing it to thermohydrolysis reactor of at least 300&#xb0; C., withdrawing MgO from thermohydrolysis reactor in solid form, and withdrawing a HCl containing gas stream of at least 300&#xb0; C. from thermohydrolysis reactor, providing the HCl-containing gas stream of at least 300&#xb0; C. to cooling step, where HCl-containing gas stream is contacted with cooling liquid, withdrawing HCl-containing gas stream below 150&#xb0; C. from cooling step, circulating cooling liquid through heat exchanger where energy is transferred to heating liquid which circulates from heat exchanger to concentration step.

Method for processing magnesium chloride solutions and method for manufacturing carboxylic acids

A method for processing MgCl2 solutions including the steps of: providing an aqueous solution including 5-25 wt. % of MgCl2 and optionally organic contaminants to a step, wherein water and present, organic components are evaporated; withdrawing aqueous solution with a MgCl2 concentration of 25-35 wt. % from an evaporation step and providing it to a preconcentrator where it is contacted with a HCl containing gas stream at least 300&#xb0; C.; providing aqueous solution with a MgCl2 concentration of 35-45 wt. % resulting from the preconcentrator to a thermohydrolysis reactor, being at at least 300&#xb0; C.; withdrawing MgO from the thermohydrolysis reactor in solid form, and withdrawing a HCl containing gas stream from the thermohydrolysis reactor, said HCl-containing gas stream at least 300&#xb0; C.; providing the HCl-containing gas stream with at least 300&#xb0; C. to the preconcentrator; withdrawing a HCl-containing gas stream with a temperature of at most 150&#xb0; C. from the preconcentrator.

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Gorinchem, Netherlands

Raymon Frediansyah