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• CA plus(1907-??)
• ???CA???????????
• ???98?????????
• 10000?????59??????????(????)?????,????????????????
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• ???????(CAS.No, CAS Role)

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??????? Process for synthesizing high purity
sialon material by coal-series kaolin    
SciFinder???? Process for synthesis of high
purity SiAlON material from coal series kaolin
clay.
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????? SciFinder???

• The present invention is process of
  deoxygenating, desulfurizing and controlling
  non-metal inclusion content in steel, and belongs
  to the field of steel making production
  technology. The process includes desulfurizing
  molten iron to S content of 0.003-0.006 wt
  smelting in a converter to reach CaO/SiO2
  alkalinity of 4-7 and P content of 0.003-0.01
  wt, and tapping while blocking slag strictly and
  adding Al in 0.09-0.2 wt adding high alkalinity
  slag 0.4-1 wt and Al 0.04-0.12 wt into molten
  steel in a LF furnace while blowing Ar and
  stirring adding Al to reach acid soluble Al
  content in molten steel of 0.030-0.070 wt
  vacuum treatment at 30-300 Pa for 15-30 min and
  protected continuous casting. The present
  invention is suitable for producing high strength
  structural alloy steel, high strength carbon
  steel, low alloy steel and other special steel.

Conversion of hydrocarbons to H2 and one or more
carbon oxides is carried out with steam and/or
oxygen in the presence of a spinel-phase cryst.
catalyst contg. Ni, Mg, Al, and a lanthanide
element, esp. lanthanum.  The catalyst compn. is
esp. Ni 15-35, Al (as Al2O3) 20-80, La (as La2O3)
gt0.1, and Mg (as MgO) gt5 wt., in which the Ni is
present as reduced Ni metal (Ni0).  Suitable
steam reforming catalysts are prepd. by pptg. the
active metal precursors and metal components
(including the support) from an aq. soln. or
suspension and heating the sepd. ppt. in an
oxygen-contg. atm. to a temp. for crystal phase.
 Suitable pptg. agents include NH3, ammonium
hydroxide, ammonium carbonate, alkali metal
hydroxides or carbonates, and alk. earth
hydroxides and carbonates.  Addnl. active metals
include Ru, Pt, Pd, Rh, Re, and Ir suitable
supports in addn. to Al2O3, can also includes
silica, zirconia and alk. earth oxides.

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SciFinder(????)???
?????????,????CAplus?????????????
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????(CAS. No, CAS Role)
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??bioreactor with water treatment
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??????of?with?by?beyond?????,??????????and
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6538??????????????????????????????????
13074?????????????,????????????
51415??????????????
441241????????????
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?????MIN E Z,MIN EN ZE?MIN ENZE?????????????????
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• ?????????????Lovastatin

???? 1 ??Lovastatin???? 2 ?????????????? 3
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??Lovastatin??????
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??Lovastatin??????
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??Lovastatin????????
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Lovastatin????????
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??Lovastatin????????microbial fermatation???
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?????CAS Role??????
????cas role??? http//www.cas.org/ASSETS/EB85B91
9049C4E448DCF8D391788F0DD/casroles.pdf
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Mol???????
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search??? ??2??????,?substructure search????
206986-87-0
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search??? ??2????????????????
1147120-16-8
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???1
(C3H6O)n(C2H4O)nC8H6O4
Notes??????
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???2

• ABS??

???(C8H8. C4H6.C3H3N)x
Notes???????
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???????
1 ?????????,????????,??????? 2??n?x??????????!?(C1
0H8O4)n?(C10H8O4)x 3???????,??????n??????????????
??,??????????,?????????????????????(C2H4O)nC12H26O
4???????????,??????????,? . ???,????,???x???????C
????????,????????,H?????????(C8H8. C4H6. C3H3N)x
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• CAS databases streamline the investigative
  process allowing you to take an
• idea and rapidly find the important and
  necessary information before you forget
• about the idea or it loses its excitement.
  That really is invaluable."
• 
  -Dr. Robert
  Grubbs
• 
  2005 Nobel Laureate in Chemistry
• CAS?????????????????????,?????
• ????????????????????,????????
• ??
• 
  
  ??????
• 2005??????????

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