Stable, pumpable, aqueous zeolite suspensions

Stable, pumpable, aqueous zeolite suspensions

Patent comprises reacting an aqueous salt of Fe, Si, an alkali metal and HzS04, with a tetraalkyl ammonium salt of formula R’,R”,,N+ X to form a gel (...

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Patent comprises reacting an aqueous salt of Fe, Si, an alkali metal and HzS04, with a tetraalkyl ammonium salt of formula R’,R”,,N+ X to form a gel (R’, R” are alkYl groups containing 2-4 C atoms, R’ may or may not be the same as R”, the values of x and y vary between 1 and 3 and may or may not be same, and X is Br- or OH-), heating the resulting gel, filtering, drying and calcining the resultant solid composite material and then exchanging with an ammonium salt. Application of the encilite catalyst to conversion of MeOH to light olefins, such as ethylene, propylene and butene, is indicated.

Stable,

pumpable,

aqueous

P. Knop; W. Roscher; B. Noll VEB Chemiekombinar Bitterfeld E. Ger. 247,648; 247,651, July

suspensions

of zeolites

et al. 15,

1987;

Appl.

Nov.

5, 1982

The title suspensions contain 5-45 wt.% zeolite having a composition: xMz0.Alz03.ySi0z (M = monocation; x = 0.8-1.6; y = 1.8-3) and are prepared by hydrothermal treatment of reaction mixtures of mol ratio SiOz-A1203 (1.2-6): 1, NazO-SiOz (0.7-2.8): 1, HzO-NazO (2&50):1 which contain 0.1-5 wt.% ethoxylated alkylphenol with 12-20 mol ethylene oxide per mol alkylphenol, and 0.1-5 wt.% Na K hexametaphosphate.

Ferroaluminosilicates S. Ueda; M. Koizumi; M. ltagaki Toyo Soda Mfg. Co. Ltd. Jpn Kokai Tokkyo Koho 87,275,017, 1986

Nov.

30,

1987;

Appl.

Ferroaluminosilicates having the composition: aMu,O:xAlzOa:(l -x)FezOo: ySiOz (M = cation, a 5 2, y = 10-40, x = 0.05-0.5) in anhydrous prepared by reacting a mixture of desired composition autoclave. The ferroaluminosilicates are useful as catalysts conversion.

Zeolite Z. Zhang; Chinese Chinese

May

22,

form,

are in an in MeOH

of Sciences; Shanxi Coal Chemistry Sept. 3, 1986; Appl. Apr. 1, 1985

stable

Institute

homogeneous pressure for products. The with 0 or 1 Al of the reverse

Nu-3 P/c. 10, 1988;

U.K.

Appl.

July

31,

1986

Zeolite Nu-3 is prepared hydrothermally from a reaction mixture of mol composition XOz:LzO3 (5-50):1, MOH:XOz (lo-‘-0.5):1, HzO:XOz (lO-200):1, Q:XOz (lO-2OO):l. and NZ:XOz (O-4.0):1 [Q = (substituted) adamantanamine; M,N = alkali metal or NH.,+; X = Si, Ge; L = Al, Fe, Ga; Z = strong acid radical added as N salt or as acid form of Qj.

Stable,

pumpable,

P. Knop; B. Nell; VEB Chemiekombinat E. Ger. 247,649;

aqueous

W. Roscher Bitterfeld 247,652, July

suspensions

of zeolites

et al. 15,

1987;

Appl.

Nov.

5, 1982

The title suspensions contain lo-45 wt.% zeolite having a composition: (Mz0),.Alz03~(Si02)y (M = monovalent cation; x = 0.8-1.6; y = 1.8-3) and contain 0.1-10 wt.% (based on total suspension weight) condensation products of hydroxynaphthalenes, phenols and HCOH that carry one or two sulphomethyl groups per condensation unit to become water soluble and are condensed in a alkaline medium. The condensation products act as dispersants and stabilizers for the suspensions.

pumpable,

aqueous

W. Roscher Bitterfeld 247,653, July

zeolite

suspensions

et al. 15, 1987;

Appl.

Nov.

5, 1982

In the manufacture of the title suspensions containing 5-45 wt.% zeolites having a composition: (M20)xAlz03~(SiOz)y (M = monovalent cation, x = 0.8-16, y = i .a3), the hydrothermal synthesis of a mixture of molar ratios Si02/A1203 = 1.2-6, NaPO/.SiOz = 0.7-2.8 and HzO/NazO = 20-50, is carried out in the presence of 0.1-10 wt.% (based on the total weight of the suspension) of a product obtained by the acid condensation of naphthalene sulphonic acids with HCOH. Stable, pumpable, suspensions are obtained.

HY-type

phosphorus-containing

CATALYSIS

H. Nakamoto; T. Masuda; Catalysts and Chemicals Jpn Kokai Tokkyo Koho 1986

K. Ohama Industries 87,212,219,

et a/. Co. Ltd. Sept. 18,

1987;

Appl.

Mar.

12,

The title faujasites, useful as petroleum-cracking catalysts, are manufactured by treating NaY faujasites with an aqueous solution containing both PO4 3- and NH4+ and then treating the resulting NH4Y faujasites containing 5 3% Na (as NazO) and 0.3-15% P (as Pz05) with steam.

Process for preparing cate, ECR-4 D.E.W. Vaughan Exxon Research U.S. 4,714,601,

of zeolite

A. Stewart Imperial Chemical lndusrries Eur. Pat. Appl. 255,770, Feb.

P. Knop; 8. Nell; VEB Chemiekombinat E. Ger. 247,650;

A mixture of water glass, and an amine, Alz(SO&, and Hz0 is aged, reacted in a sealed reactor, cooled, filtered, washed to pH 8, dried, and sintered to give a zeolite having a composition: 0.9Mun0.Alz03.49-64SiOz.xHz0 (M = a n-valent cation; x = 9-30). The zeolite is useful as a catalyst for gasoline synthesis by dehydration of MeOH, conversion of LPG, or as the second-stage catalyst in a two-stage Fischer-Tropsch synthesis. The zeolite is in the form of fine crystals and has good thermal stabiliw and water resistance and high catalytic selectivity.

Thermally faujasites

Synthesis

Stable,

manufacture C. Fu Academy 85,100,759,

of the product; (b) blending to give a substantially mixture; (c) maintaining at 90-120°C under autogenous crystallization; and (d) recovering the crystalline product, ECR-4, has a greater number of Si atoms neighbor than with 2 or 3 Al neighbors instead situation for conventional Y zeolite.

Report

and Dec.

Engineering 22, 1987;

high-silica

faujasite

aluminosili-

May

4, 1984

The title process consists of (a) preparing a reaction mixture of mol ratio (Na, T)-Alz03 (l&8):1, SiOz-Alz03 (4-20):1, HzO-Al203 (100-4OO):l [T = (HOCHzCHz)zMeZN+ or (MeCHOHCHz)zMezN+j containing nucleating seeds of composition 13.33Naz0.A1203. 12.5SiOz.267HzO in the amount 0.1-10 mol% vs. final Al203 content

of N-alkylanitine

H. Sato; M. Tsuzuki ldemitsu Kosan Co. Ltd. Jpn Kokai Tokkyo Koho 1986

87,195,350,

derivatives

Aug.

28,

1987;

Appl.

Feb.

21,

N-alkylaniline derivatives, useful as intermediates for drugs, agrochemicals, and color photographic couplers, are prepared by alkylation of primary aromatic amines over crystalline zeolite catalysts having molar ratio SiOZ/M20J > 12 (M = trivalent metal), e.g., ZSM-5 zeolites.

Preparation

Co. Appl.

Preparation

W. Hoelderich; BASF A.-G. Ger. Offen. Substituted ates, are presence

of phenylacetatdehydes N. Goetz; 3,546,372,

July

L. Hupfer 2, 1987;

et al. Appl.

phenylacetaldehydes, useful prepared by isomerization of the of crystalline zeolite catalysts.

ZEOLITES,

Dec.

31,

1985

as insecticide appropriate

1988, Vol8,

intermediepoxide in the

November

527