Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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B01J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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20/00
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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B01J20/30
Processes for preparing, regenerating, or reactivating
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B01J20/305
Addition of material, later completely removed, e.g. as result of heat treatment, leaching or washing, e.g. for forming pores
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B01J20/3064
Addition of pore forming agents, e.g. pore inducing or porogenic agents
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