Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE367015ApublicationCriticalpatent/BE367015A/xx
B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
B44C1/22—Removing surface-material, e.g. by engraving, by etching
B44C1/221—Removing surface-material, e.g. by engraving, by etching using streams of abrasive particles
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
B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
B01J27/14—Phosphorus; Compounds thereof
B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C17/00—Preparation of halogenated hydrocarbons
C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
C07C17/16—Preparation of halogenated hydrocarbons by replacement by halogens of hydroxyl groups