B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D59/00—Separation of different isotopes of the same chemical element
B01D59/10—Separation by diffusion
B01D59/12—Separation by diffusion by diffusion through barriers
B01D59/14—Construction of the barrier
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
B01J13/0052—Preparation of gels
B01J13/0056—Preparation of gels containing inorganic material and water
B01J13/006—Preparation of gels containing inorganic material and water by precipitation, coagulation, hydrolyse coacervation
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Chemical & Material Sciences
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Chemical Kinetics & Catalysis
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Organic Chemistry
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Inorganic Chemistry
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Dispersion Chemistry
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Engineering & Computer Science
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Analytical Chemistry
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General Chemical & Material Sciences
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Oil, Petroleum & Natural Gas
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Solid-Sorbent Or Filter-Aiding Compositions
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Particules spheriques de carbone, et en particulier de carbone active, et procede de fabrication de ces particules a partir d'un melange contenant du brai, du carbone amorphe et un agent de reglage de viscosite
Procede de preparation de produits poreux a base de fluorure de cobalt ou de fluorure de plomb et utilisation pour la purification d'hexafluorure d'uranium de billes ou d'elements composites a base de fluorure de cobalt
Procédé de traitement d'une poudre d'oxyde métallique et utilisation de la poudre traitée pour la fabrication de pastilles de combustible nucléaire