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1. WO1980000313 - IMPROVEMENTS IN THE STABILISATION OF HYGROSCOPIC SALTS

Publication Number WO/1980/000313
Publication Date 06.03.1980
International Application No. PCT/GB1979/000122
International Filing Date 19.07.1979
IPC
B01J 27/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
B01J 33/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
33Protection of catalysts, e.g. by coating
B01J 37/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
02Impregnation, coating or precipitation
C07B 39/00 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
BGENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
39Halogenation
C07C 17/20 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
093by replacement by halogens
20of halogen atoms by other halogen atoms
C07C 201/12 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
201Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
06Preparation of nitro compounds
12by reactions not involving the formation of nitro groups
CPC
B01J 27/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
B01J 33/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
33Protection of catalysts, e.g. by coating
B01J 37/0219
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
02Impregnation, coating or precipitation
0215Coating
0219the coating containing organic compounds
C07B 39/00
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
BGENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
39Halogenation
C07C 17/208
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
17Preparation of halogenated hydrocarbons
093by replacement by halogens
20of halogen atoms by other halogen atoms
202two or more compounds being involved in the reaction
208the other compound being MX
C07C 205/12
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
205Compounds containing nitro groups bound to a carbon skeleton
07the carbon skeleton being further substituted by halogen atoms
11having nitro groups bound to carbon atoms of six-membered aromatic rings
12the six-membered aromatic ring or a condensed ring system containing that ring being substituted by halogen atoms
Applicants
Inventors
Priority Data
783119326.07.1978GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVEMENTS IN THE STABILISATION OF HYGROSCOPIC SALTS
(FR) AMELIORATION DANS LA STABILISATION DE SELS HYGROSCOPIQUES
Abstract
(EN)
Stabilisation against water uptake of hygroscopic salts useful as catalysts by formation of anhydrous adducts with particulate support materials in order to facilitate manipulation and storage. The adducts comprise a particulate support material and a hygroscopic salt of a species of formula R1R2R3R4N, R1R2R3R4P, R1R2R3R4As, wherein R1-R4 which may be identical or different represent hydrogen or alkyl or aryl groups, or of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Cu, Ag, Zn, Cd, Au, Hg, Ga, In, Tl, Sn, Sb or Pb, the salt anion being fluoride, bromide, chloride, sulphate, nitrate, nitrite, cyanate, thiocyanate, peroxide, hydroxide, acetate, formate or comprises phosphorus and oxygen, the salt being coated on the support material thereby being rendered less hygroscopic; provided that when the species is Na, the anion is other than hydroxide and when the species is Tl the anion is fluoride, bromide or chloride. Adducts of salts useful in catalytic fluorination, e.g. R1R2R3R4N+F- and CsF are of especial interest.
(FR)
L"absorption d"eau par des sels hygroscopiques utilises comme catalyseurs, peut etre stabilisee par la formation de produits d"addition anhydres avec des matieres sous forme de particules servant de support, facilitant ainsi la manipulation et le stockage. Les produits d"addition comprennent une matiere sous forme de particules servant de support et un sel hygroscopique de formules R1 R2 R3 R4N, R1 R2 R3 R4P, R1 R2 R3 R4 As, dans lesquelles R1 a R4, identiques ou differents, representent l"hydrogene ou des groupes alkyles ou aryles ou un sel de Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Bo, Cu, Ag, Zn, Col, Au, Hg, Ga, In, Tl, Sn, Sb ou Pb, l"anion du sel etant un fluorure, un bromure, un chlorure, sulfate, nitrate, nitrite, cyanate, thiocyanate, peroxyde, hydroxyde, acetate, formate ou comprend un phosphore et de l"oxygene, le sel formant un revetement sur la matiere formant support ce qui le rend moins hygroscopique; il est entendu que lorsque le sel est un sel de sodium, l"anion n"est pas un hydroxyde et lorsque le sel est un sel de Tl, l"anion est un fluorure, un bromure ou un chlorure. Les produits d"addition de sels, utilises dans la fluoration catalytique, par exemple R1 R2 R3 R4 N+F- et CsF ont un interet tout particulier.
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