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1. AU1997034519 - A method for the production of a mono-calcium phosphate product

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Office Australie
Numéro de la demande 34519/97
Date de la demande 08.07.1997
Numéro de publication 1997034519
Date de publication 25.03.1999
Type de publication A
CIB
C01B 25/32
CCHIMIE; MÉTALLURGIE
01CHIMIE INORGANIQUE
BÉLÉMENTS NON MÉTALLIQUES; LEURS COMPOSÉS
25Phosphore; Ses composés
16Oxyacides de phosphore; Leurs sels
26Phosphates
32Phosphates de magnésium, de calcium, de strontium ou de baryum
B01J 8/20
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
01PROCÉDÉS OU APPAREILS PHYSIQUES OU CHIMIQUES EN GÉNÉRAL
JPROCÉDÉS CHIMIQUES OU PHYSIQUES, p.ex. CATALYSE OU CHIMIE DES COLLOÏDES; APPAREILLAGE APPROPRIÉ
8Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solides; Appareillage pour de tels procédés
18les particules étant fluidisées
20l'agent fluidisant étant un liquide
CPC
B01J 8/20
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
18with fluidised particles
20with liquid as a fluidising medium
B01J 2208/00212
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00008Controlling the process
00017Controlling the temperature
00106by indirect heat exchange
00168with heat exchange elements outside the bed of solid particles
00212Plates; Jackets; Cylinders
B01J 2208/00752
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00743Feeding or discharging of solids
00752Feeding
B01J 2208/00867
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2208Processes carried out in the presence of solid particles; Reactors therefor
00796Details of the reactor or of the particulate material
00823Mixing elements
00858Moving elements
00867inside the bed, e.g. rotary mixer
B01J 2219/00006
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2219Chemical, physical or physico-chemical processes in general; Their relevant apparatus
00002Chemical plants
00004Scale aspects
00006Large-scale industrial plants
C01B 25/322
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
25Phosphorus; Compounds thereof
16Oxyacids of phosphorus; Salts thereof
26Phosphates
32Phosphates of magnesium, calcium, strontium, or barium
322Preparation by neutralisation of orthophosphoric acid
Déposants S A Feed Phosphates (Proprietary) Limited
Inventeurs Grobbelaar, Daniel Petrus
Titre
(EN) A method for the production of a mono-calcium phosphate product
Abrégé
(EN)
A method for the production of a mono-calcium phosphate product includes the step of rapidly dispersing unslaked lime in an aqueous solution of phosphoric acid in a mixing zone to form a generally homogeneous reaction mixture and allowing reaction between the unslaked lime and the acid in the reaction mixture to proceed until the reaction mixture reaches a predetermined temperature. The reaction mixture is then rapidly transferred to a reaction zone when it has reaced the predetermined temperature. The reaction is then allowed to proceed essentially to completion in the reaction zone to form the mono-calcium phosphate product and the product is isolated.
Également publié en tant que
EP0998427
GB2327081
US09462111
WO/1999/002455
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