Global Patent Index - EP 4399176 A1

EP 4399176 A1 20240717 - PROCESS FOR PREPARING STARTING COMPOUNDS INTENDED FOR THE SYNTHESIS OF AN AMMINE METAL BOROHYDRIDE

Title (en)

PROCESS FOR PREPARING STARTING COMPOUNDS INTENDED FOR THE SYNTHESIS OF AN AMMINE METAL BOROHYDRIDE

Title (de)

VERFAHREN ZUR HERSTELLUNG VON AUSGANGSVERBINDUNGEN FÜR DIE SYNTHESE EINES AMINMETALLBORHYDRIDS

Title (fr)

PROCÉDÉ DE PRÉPARATION DE COMPOSÉS DE DÉPART DESTINÉS À LA SYNTHÈSE D'UN BOROHYDRURE DE MÉTAL AMMINE

Publication

EP 4399176 A1 20240717 (EN)

Application

EP 22773680 A 20220907

Priority

  • EP 21195378 A 20210907
  • EP 2022074882 W 20220907

Abstract (en)

[origin: EP4144689A1] Process for preparing a metal hydride of formula A<sub>x</sub>MH<sub>x+m</sub> and a borane compound BH<sub>3</sub>, starting from a product of formula A<sub>x</sub>M(BNH)<sub>x+m</sub>, wherein:A is an alkali metal,M is a metal different from an alkali metal,0≤x≤2m>0,the process comprising:a) contacting the product of formula A<sub>x</sub>M(BNH)<sub>x+m</sub> with a catalyst comprising a transition metal in solution in an aprotic polar solvent, such as to separate the metal hydride of formula A<sub>x</sub>MH<sub>x+m</sub> and a hydrogenated boron nitride compound BNH,b) the synthesis of the borane compound BH<sub>3</sub>, from the hydrogenated boron nitride compound BNH, the synthesis comprising:- a digestion reaction of the boron nitride compound BNH in a gaseous atmosphere containing, even consisting in, an anhydrous hydrogen halide acid gas comprising at least one halogen element Y, such as to produce a boron halide BY<sub>3</sub>, Y being preferably chlorine CI,- a hydrodehalogenation of the boron halide, in a hydrogen gas atmosphere to obtain the borane compound BH<sub>3</sub>.

IPC 8 full level

C01B 3/00 (2006.01); C01B 6/10 (2006.01); C01B 6/24 (2006.01); C01C 1/02 (2006.01)

CPC (source: EP)

C01B 3/0031 (2013.01); C01B 6/10 (2013.01); C01B 6/24 (2013.01); C01B 6/243 (2013.01); C01C 1/026 (2013.01); Y02E 60/32 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4144689 A1 20230308; EP 4399176 A1 20240717; WO 2023036831 A1 20230316

DOCDB simple family (application)

EP 21195378 A 20210907; EP 2022074882 W 20220907; EP 22773680 A 20220907