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  • C01B25/00
    		•  Phosphorus; Compounds thereof (C01B 21/00, C01B 23/00 take precedence; perphosphates C01B 15/16) [3] HB CC 4G071
  • C01B25/00@A
    		•  Improvement of red phosphorous by additives e.g. stabilization HB CC 4G071
  • C01B25/00@Z
    		•  Others HB CC 4G071
  • C01B25/01
    		•  .Treating phosphate ores or other raw phosphate materials to obtain phosphorus or phosphorus compounds [2] HB CC 4G071
  • C01B25/02
    		•  .Preparation of phosphorus HB CC 4G071
  • C01B25/02@A
    		•  Preparation from phosphides HB CC 4G071
  • C01B25/02@C
    		•  Preparation from compounds containing combination of phosphorous and oxygen e.g. yellow phosphorous HB CC 4G071
  • C01B25/02@M
    		•  By conversion from one form to another e.g. preparation of red phosphorous from yellow phosphorous HB CC 4G071
  • C01B25/02@Z
    		•  Others HB CC 4G071
  • C01B25/023
    		•  ..of red phosphorus [2] HB CC 4G071
  • C01B25/027
    		•  ..of yellow phosphorus [2] HB CC 4G071
  • C01B25/04
    		•  .Purification of phosphorus HB CC 4G071
  • C01B25/043
    		•  ..of red phosphorus [2] HB CC 4G071
  • C01B25/047
    		•  ..of yellow phosphorus [2] HB CC 4G071
  • C01B25/06
    		•  .Hydrogen phosphides HB CC 4G071
  • C01B25/08
    		•  .Other phosphides HB CC 4G071
  • C01B25/08@A
    		•  Phosphides of boron, aluminium, gallium, indium or thallium HB CC 4G071
  • C01B25/08@E
    		•  Preparation from elemental phosphorous HB CC 4G071
  • C01B25/08@F
    		•  .From gaseous elemental phosphorous HB CC 4G071
  • C01B25/08@G
    		•  From compounds containing combinations of phosphorous and oxygen HB CC 4G071
  • C01B25/08@Z
    		•  Others HB CC 4G071
  • C01B25/10
    		•  .Halides or oxyhalides of phosphorus [2] HB CC 4G071
  • C01B25/12
    		•  .Oxides of phosphorus HB CC 4G071
  • C01B25/14
    		•  .Sulfur, selenium, or tellurium compounds of phosphorus HB CC 4G071
  • C01B25/16
    		•  .Oxyacids of phosphorus; Salts thereof (peroxyacids or salts thereof C01B 15/00) HB CC 4G071
  • C01B25/163
    		•  ..Phosphorous acid; Salts thereof [2] HB CC 4G071
  • C01B25/165
    		•  ..Hypophosphorous acid; Salts thereof [2] HB CC 4G071
  • C01B25/168
    		•  ..Pyrophosphorous acid; Salts thereof [2] HB CC 4G071
  • C01B25/18
    		•  ..Phosphoric acid HB CC 4G071
  • C01B25/20
    		•  ...Preparation from elemental phosphorus or phosphoric anhydride HB CC 4G071
  • C01B25/22
    		•  ...Preparation by reacting phosphate containing material with an acid, e.g. wet process HB CC 4G071
  • C01B25/22@A
    		•  By acids containing phosphoric acid (Also containing sulfuric acid R 25/222) HB CC 4G071
  • C01B25/22@D
    		•  By acids containing phosphoric acid (also containing sulfuric acid) HB CC 4G071
  • C01B25/22@Z
    		•  Others HB CC 4G071
  • C01B25/222
    		•  ....with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen [3] HB CC 4G071
  • C01B25/223
    		•  .....only one form of calcium sulfate being formed [3] HB CC 4G071
  • C01B25/225
    		•  ......Dihydrate process [3] HB CC 4G071
  • C01B25/226
    		•  ......Hemihydrate process [3] HB CC 4G071
  • C01B25/228
    		•  .....one form of calcium sulfate being formed and then converted to another form [3] HB CC 4G071
  • C01B25/229
    		•  ......Hemihydrate-dihydrate process [3] HB CC 4G071
  • C01B25/231
    		•  ......Dihydrate-hemihydrate process [3] HB CC 4G071
  • C01B25/232
    		•  .....Preparation by reacting phosphate containing material with concentrated sulfuric acid and subsequently lixiviating the obtained mass, e.g. clincker process [3] HB CC 4G071
  • C01B25/234
    		•  ...Purification; Stabilisation; Concentration (purification concomitant with preparation C01B 25/22; preparation involving solvent-solvent extraction C01B 25/46) [3] HB CC 4G071
  • C01B25/234@A
    		•  Concentration HB CC 4G071
  • C01B25/234@C
    		•  Purification of phosphoric acid involving extraction process of phosphoric acid root with organic solvents (C to K do not conform to last place rule; extraction of phosphate rock by organic solvents R 25/46) HB CC 4G071
  • C01B25/234@E
    		•  .Pre-purification of phosphoric acid (extraction of phosphoric acid root R C, G) HB CC 4G071
  • C01B25/234@F
    		•  .Treatment of raffinate (extraction of phosphoric acid root R C, G) HB CC 4G071
  • C01B25/234@G
    		•  .Addition or contacting of substances to solvents, phosphoric acid or water extraction phase (for peeling solvents R C) HB CC 4G071
  • C01B25/234@K
    		•  .Post-processing phosphoric acid extracted and purified HB CC 4G071
  • C01B25/234@Z
    		•  Others HB CC 4G071
  • C01B25/235
    		•  ....Clarification; Stabilisation to prevent post-precipitation of dissolved impurities [3] HB CC 4G071
  • C01B25/237
    		•  ....Selective elimination of impurities [3] HB CC 4G071
  • C01B25/238
    		•  .....Cationic impurities [3] HB CC 4G071
  • C01B25/238@A
    		•  Purification of phosphoric acid involving extraction process of cation impurities with organic solvents HB CC 4G071
  • C01B25/238@Z
    		•  Others HB CC 4G071
  • C01B25/24
    		•  ..Condensed phosphoric acids HB CC 4G071
  • C01B25/26
    		•  ..Phosphates (perphosphates C01B 15/16) HB CC 4G071
  • C01B25/28
    		•  ...Ammonium phosphates HB CC 4G071
  • C01B25/28@C
    		•  Preparation from phosphoric acid solution and ammonia HB CC 4G071
  • C01B25/28@D
    		•  .Multi-stage neutralization; formation by other ammonium phosphoric ammonium HB CC 4G071
  • C01B25/28@F
    		•  .By parallel flow continuous reactions HB CC 4G071
  • C01B25/28@M
    		•  Processing HB CC 4G071
  • C01B25/28@Z
    		•  Others HB CC 4G071
  • C01B25/30
    		•  ...Alkali metal phosphates HB CC 4G071
  • C01B25/30@B
    		•  Preparation from phosphoric solution and alkali metal compounds HB CC 4G071
  • C01B25/30@D
    		•  Preparation from solution containing organic phosphoric acid solution and alkali metal compounds HB CC 4G071
  • C01B25/30@M
    		•  Processing HB CC 4G071
  • C01B25/30@Z
    		•  Others HB CC 4G071
  • C01B25/32
    		•  ...Phosphates of magnesium, calcium, strontium, or barium HB CC 4G071
  • C01B25/32@B
    		•  Phosphates of calcium HB CC 4G071
  • C01B25/32@C
    		•  .Primary calcium phosphate [Ca (H2PO4)2] HB CC 4G071
  • C01B25/32@G
    		•  .Secondary calcium phosphate (CaHPO4) HB CC 4G071
  • C01B25/32@K
    		•  ..Anhydrous salts HB CC 4G071
  • C01B25/32@M
    		•  .Third calcium phosphate [Ca3(PO4)2] HB CC 4G071
  • C01B25/32@N
    		•  ..Preparation by dry methods HB CC 4G071
  • C01B25/32@P
    		•  .Containing hydroxyl group HB CC 4G071
  • C01B25/32@Q
    		•  ..Preparation HB CC 4G071
  • C01B25/32@R
    		•  ...from other calcium phosphates HB CC 4G071
  • C01B25/32@V
    		•  ...Preparation under presence of organic substances (also assign to R if applicable) HB CC 4G071
  • C01B25/32@W
    		•  ..Processing HB CC 4G071
  • C01B25/32@Y
    		•  Phosphates of strontium or barium HB CC 4G071
  • C01B25/32@Z
    		•  Others HB CC 4G071
  • C01B25/34
    		•  ....Magnesium phosphates HB CC 4G071
  • C01B25/36
    		•  ...Aluminium phosphates HB CC 4G071
  • C01B25/36@D
    		•  Preparation under presence of organic substances (Q takes precedence.) HB CC 4G071
  • C01B25/36@Q
    		•  With molecular sieve characteristics HB CC 4G071
  • C01B25/36@Z
    		•  Others HB CC 4G071
  • C01B25/37
    		•  ...Phosphates of heavy metals [2] HB CC 4G071
  • C01B25/37@H
    		•  Phosphates of titanium, zirconium or hafnium HB CC 4G071
  • C01B25/37@J
    		•  .Of titanium HB CC 4G071
  • C01B25/37@K
    		•  .Of zirconium HB CC 4G071
  • C01B25/37@L
    		•  ..Preparation under presence of organic substances HB CC 4G071
  • C01B25/37@M
    		•  Phosphates of vanadium, niobium or tantalum HB CC 4G071
  • C01B25/37@Z
    		•  Others HB CC 4G071
  • C01B25/38
    		•  ...Condensed phosphates HB CC 4G071
  • C01B25/39
    		•  ....of alkali metals [3] HB CC 4G071
  • C01B25/40
    		•  ....Polyphosphates [2] HB CC 4G071
  • C01B25/40@A
    		•  Of ammonium HB CC 4G071
  • C01B25/40@Z
    		•  Others HB CC 4G071
  • C01B25/41
    		•  .....of alkali metals [3] HB CC 4G071
  • C01B25/42
    		•  ....Pyrophosphates [2] HB CC 4G071
  • C01B25/44
    		•  ....Metaphosphates [2] HB CC 4G071
  • C01B25/445
    		•  .....of alkali metals [3] HB CC 4G071
  • C01B25/45
    		•  ...containing plural metal, or metal and ammonium [3] HB CC 4G071
  • C01B25/45@A
    		•  Containing only light metal or light metal and ammonium HB CC 4G071
  • C01B25/45@D
    		•  .Containing barium, magnesium, calcium, strontium or barium HB CC 4G071
  • C01B25/45@G
    		•  .Containing aluminium HB CC 4G071
  • C01B25/45@H
    		•  Containing titanium, zirconium or hafnium HB CC 4G071
  • C01B25/45@M
    		•  Containing vanadium, niobium or tantalum HB CC 4G071
  • C01B25/45@T
    		•  Containing heavy metal and aluminium HB CC 4G071
  • C01B25/45@U
    		•  .With molecular sieve characteristics HB CC 4G071
  • C01B25/45@Z
    		•  Others HB CC 4G071
  • C01B25/455
    		•  ...containing halogen [3] HB CC 4G071
  • C01B25/46
    		•  ..Preparation involving solvent-solvent extraction [2] HB CC 4G071
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