Manufacture of crystalline silicoaluminophosphates

ELSEVIER

PATENT REPORT As

in

previous

issues,

patents under

that have the headings:

cesses,

detergents,

been

a selection

of the

published synthesis,

recently catalysis,

and

miscellaneous

more

interesting

is given separation

oxide. The as disclosed. ditions in sources of oxide, and

below pro-

applications.

J.A.

Barton

Manufacture

of crystalline

H. Hori: R. Uchida Nippon Kayaku K.K. Jpn. Kokai Tokkyo Koho 1994

silicoaluminophosphates

96,12,320,

Jan.

16, 1996;

Appl.

July

5,

Crystalline silicoaluminophosphates are manufactured by first forming a mixture of suitable Al and P compounds in an alcohol or water-alcohol solvent, then adding suitable Si compounds together with organic templating agents. Preferably, the Al compounds are Al alkoxides and the P compounds are orthophosphoric acid or metaphosphoric acid.

Manufacture sieves using Y. Nakagawa Chevron Inc. U.S. 5,501,848,

of crystalline azapolycyclic

Mar.

26,

aluminophosphate templating agents

1996;

Appl.

Feb.

oxide

C.-L. O’Young; S.L. Suib; !?.A. Sawicki Texaco Development Corp. Eur. Pat. Appls. 710,622: 710,623, May 7. 1994

sieves

molecular

8, 1996;

U.S.

having

Appls.

a

Nov.

A new class of manganese oxide octahedral molecular sieves possess a (4 X 4) tunnel structure. They have the general composition A,[M,Mn,,.,O,,JnH,O, wherein A is a +I, t2, t3, or +4 tunnel cation or a combination thereof, 0 s a 5 8, M is a +I, +‘2, +3, or +4 framework-substituting metal cation or a combination thereof, 0 s b < 16 and n Z 0. A method of producing the molecular sieves includes the steps of dissolving a manganese salt in an organic solvent, for example, ethanol, adding a permanganate salt to the resulting solution to precipitate a solid intermediate, which is recovered and heated to a temperature that results in the production of the octahedral molecular sieve having a (4 x 4) tunnel structure. The molecular sieves are useful in such applications as oxidative catalysis, hydrocarbon conversion, adsorption, and electrochemical sensors.

Zeolite

CIT-1

M.E. Davis; R.F. Lobo California Institute of Technology U.S. 5,512,267, Apr. 30, 1996; Appl.

Sept.

15,

1993

A novel zeolite CIT.1 is described, with a composition having a mol ratio greater than about 2O:l of an oxide selected from silicon oxide, germanium oxide, or mixtures thereof, to boron oxide or mixtures of boron oxide with one or more of aluminum oxide, gallium oxide, iron oxide, titanium oxide, and vanadium Zeolites 18:301-305, 0 Elsevier Science 655 Avenue of the

1997 Inc. 1997 Americas,

New

York,

NY

10010

21,

1996;

crystalline

gallium

Appl.

zeolites

Sept.

14, 1994

phosphates

E. Benazzi; C. Darie; H. Kessler lnstitut Francais du Petrole Fr. Demande 2,725,192, Apr. 5, 1996;

8, 1994

molecular

omega

A novel zeolite composition having the omega structure is described. It is prepared by hydrothermal crystallization from an aqueous gel containing a silica source, a cation source (including sodium, gallium, and aluminum; gallia/alumina mol ratio 0.02-1.5), and a templating agent.

Microporous

The aluminophosphates are manufactured by reacting active sources of Al and P oxides under crystallization conditions in the presence of a templating agent. The templating agent is derived from a 4-azonia-tricyclo[5,2.n.0*,6]alkene. The template may be prepared in a series of reaction steps including a Diels-Alder reaction between a diene and a dienophile.

Octahedral manganese (4 x 4) tunnel structure

of gallium-containing

I.D. Hudson; C.D. Williams British Nuclear Fuels Plc. PCT Int. Appl. 96,08,444. Mar.

SYNTHESIS Manufacture

zeolite has a specific X-ray powder diffraction pattern The zeolite is prepared under crystallization conan autoclave from an aqueous mixture containing a N,N,N-tri-Me cis-myrtanyl ammonium ion, silicon boron oxide or mixtures of oxides as above.

Appl.

Sept.

30,

1994

The gallium phosphates, with an X-ray diffraction pattern as presented, have the general formula R,‘R,2R~3Ga,Pd(,‘X,20,F,hH,0 (g + p = d + e = 1; g = 0.4-0.5; p = 0.3-0.5; d, e = O-0.4; d + e = O-0.4; f = 0.01-0.2; a = 0.01-0.3; b, c = 0 or 0.01-0.3; a + b + c = 0.01-0.3; h = O-0.5, RI-3 = amine: X’, X2 = heteroatoms selected from Li, Be, Co, Mg, Mn, Zn, Al, B, Cr. Fe, Ge, Si, Ti, As, and V). The phosphates, useful as molecular sieves, are prepared by hydrothermal crystallization at ca. 170°C from a reaction mixture containing water, amorphous Ga,O, [obtained by thermal decomposition of Ga(NO,),], H,PO,, HF, and pyridine.

Modified

zeolite-f3

G.J. Gajda; R.T. Gajek UOP Inc. U.S. 5,522.984, June 4, 1996;

Appl.

Aug.

18, 1994

This invention relates to a novel zeolite that has the crystal structure of zeolite 8. The novel zeolite SN-8 has a unique i.r. absorption spectrum, shows enhanced activity for transalkylation of di-isopropyl-benzene, and shows less deactivation for cumene synthesis. The modified zeolite 8 is prepared by taking an as-synthesized zeolite 6, steam-treating it, and then ammonium ion-treating it to give a zeolite SN-6 with enhanced catalytic properties.

Manufacture sieves S.T. Evans Chevron Inc. PCT Int. Appl.

of crystalline

96,13,460,

An aluminophosphate-type templating agent derived the form S+(R),, wherein alkyl, aryl, and alkylaryl.

Heat-resistant

aluminophosphate

May

9, 1996;

Appl.

Oct.

28,

1994

molecular sieve is prepared using a from an organosulfonium cation of each R is independently selected from

mordenite-type

K. Itabashi; S. Hirano Tosoh Corp. Jpn. Kokai Tokkyo Koho 1994

U.S.

molecular

96,91,827.

zeolites

Apr.

9, 1996;

Appl.

Sept.

29,

The process for the preparation of mordenite-type zeolites consists of heating mixtures containing an SiO, source, an AI,O, source, an F source, water, and, optionally, NaOH at mol ratios of 7-40 for SiOdAl,O,, O-O.3 for NaOH/SiO,, 0.3-2 for F/SiO,, and IO-40for H,O/SiO, at IOO-200°C; crystallizing at pH 10-12;

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