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Process for producing diphenylbutane
PATENT REPORT As in p r e v i o u s issues, a s e l e c t i o n o f t h e m o r e i n t e r e s t i n g p a t e n t s t h a t h a v e b e e n p u b l i s h e d r e c e n t l y is g i v e n b e l o w u n d e r t h e h e a d i n g s : s y n t h e s i s , catalysis, s e p a r a t i o n p r o cesses, d e t e r g e n t s , a n d m i s c e l l a n e o u s a p p l i c a t i o n s .
J.A. Barton
SYNTHESIS Manufacture of dealuminated zeolite Y S.N. Khadzhiev; S.M. Gairbekova; O.V. Kryukov et al. U.S.S.R. 1,682,307, Oct. 7, 1991; Appl. Apr. 11, 1989 The title zeolite, used as a catalyst component, is manufactured by treating the ammonium form of a zeolite Y suspension in NH4OAc solution with NH4 fluorosilicate solution, maintaining the stirred suspension until its pH is stabilized, filtering, washing, and drying the product.
Manufacture of aluminium- and silicon-free molecular sieves, especially ammonium beryllphosphate molecular sieves T.E. Gier
E. /. du Pont de Nemours, and Co. U.S. 5,152,972, Oct 6, 1992; Appl. Aug. 31, 1990 The process comprises forming a mixture of M~xO, AO, T2Os and water (M = alkali metal, alkaline earth metal, or NH4; A = Be, Co, or Zn; T = P, As, or V; x = av. ionic charge of M in the mixture), and crystallising the mixture at a temperature ranging from the f.p. of the mixture fo 90°C to form molecular sieves containing M, A, T, and O. The molecular sieves are useful as ion exchangers.
tized, sintered, contacted with alkali, and treated with a solution of either quaternary ammonium compounds or Ag-, Cu-, Ni-, or Crcontaining compounds to given antimicrobial zeolites. The zeolites are used as filtering materials in water treatment.
Process for incorporating elements in crystalline a l u m o silicates K. Becker; R. Schoedel; P, Kraak et al.
Leuna Werke A.-G. Ger. Often. 4,116,630, Nov. 26, 1992; Appl. May 22, 1991 The process comprises contacting protonated or ion-exchanged thermally pretreated aluminosilicates in alkaline medium, in solid/ liquid ratio 1:(1-100), with dissolved, colloidal, or complex metal compounds having concentration 0.01-1N. Multiple cations can be introduced into the tetrahedrons in this way, and the resulting aluminosilicates are suitable for use as catalysts, catalyst supports, and adsorbents.
Manufacture of zeolite resistant to hot water S. Inoue; S. Kasahara
Tosoh Corp. Jpn. Kokai Tokkyo Koho 92,305,010, Oct. 28, 1992; Appl. Apr. 1, 1991 The zeolite useful as catalyst, adsorbent, etc., is manufactured by crystallising granular amorphous aluminosilicate in an alkali metal hydroxide aqueous solution (e.g., NaOH) and/or alkali metal silicate aqueous solution. The granular amorphous aluminosilicate is prepared by reacting an alkali metal silicate (e.g., Na silicate) aqueous solution with an AI containing compound (AI sulfate) aqueous solution at ~> 70°C.
Manufacture of macrocrystalline zeolites beta M.K. Rubin
Mobil Oil Corp. U.S. 5,164,169; 5,164,170, Nov. 17, 1992; Appls. June 14, 1991 The zeolites, having crystallite size 0.1-3.0 microns, SIO2/AI203 mol ratio 20-200, and which are essentially free of amorphous material, are manufactured by preparing a reaction mixture containing ~> 1 sources of alkali metal cations, Et4N cations, triethanolamine, AI203, SiO2, and water, in mol ratio SIO2/AI203 > 70, OH/SiO2 0.2-0.4, PJSiO2 0.3-0.9, H20/SiO2 5-15, M/SiO2 0.01-0.07, and X/SiO2 0.2-0.8 (R = organic cation; M = alkali metal cation; X = triethanolamine), maintaining the mixture under conditions to crystallize the zeolites beta, and recovering the zeolite containing >~ 1 organic cations and the chelating agent. The zeolites have general formula (360)R20:(0.5-12)M~nO:AI203:(200-1000)SiO2 (R = EtN4 and triethanolamine) and are suitable for use as catalysts.
Manufacture of B-ZSM-5 structural type boralites by hydrothermal synthesis
CATALYSIS Alkylation of aromatic compounds J. Kinoshita; T. Sawa
Asahi Chemical Industry Co., Ltd. Jpn. Kokai Tokkyo Koho, Sept. 9, 1992; Appl. Feb. 6, 1991 Aromatic compounds are alkylated by selective contact with C2-4 olefins in liquid- and/or gas-phase in the presence of Y- and/or X-type zeolites and ~< 10,000 ppm H20.
Process for producing diphenylbutane K. Matano; T. Niwa; H. Ito et al.
Tonen Corp. PCT Int. Appl. 92,09,547, June 11, 1992; JP Appl. Nov. 26, 1990 Diphenylbutanes are prepared in high yields by reaction of C6H6with 1,3-butadiene over Y-type zeolites, L-type zeolite, or SiOz/AI203 catalysts having mol ratio SIO2/AI203 = 0.4-20.
F. Skoda; J. Bauer
Vysoka Skola Chemicko Technologicka Czech 274,790, Nov. 12, 1991; Appl. Jan 18, 1990 The process comprises contacting a B203 source compound (e.g., H3BO3 or borax) in the presence of SiO2 and a Na20-source compound (e.g. NaOH solution), with 7M ethylamine. The mixture has molar ratios SIO2:B203 (4-160):1, SiO2:Na20 (4-90):1, SiO2:ethylamine (0.7-15):1, and H20:SiO2 (17-50):1.
Manufacture of zeolite pellets J. Haruna
Nippon Steel Corp. Jpn. Kokai Tokyo Koho 92,275,916, Oct. 1, 1992: Appl. Mar. 1,
Preparation of p-dichlorobenzene S. Yamaki; K. Shinoda
Kureha Chemical Industry Co., Ltd. Jpn. Kokai Tokkyo Koho 92,253,939, Sept. 9, 1992; Appl. Feb. 5, 1991 The title compound is prepared by chlorination of CsH6 in liquidphase in the presence of zeolite catalysts and ~> 1 of CH2CICH2CI, CHBrCI, and O.
Preparation of 2,6-dimethylnaphthalene K. Sumitani; K. Shimada
Teijin K.K.
1991
Jpn Kokai Tokkyo Koho 92,112,839, Apr. 14, 1992; Appl. Sept. 4,
An AI203-SIO2 source, e.g., kaolinite, and sintering aid are pelle-
1990
74
ZEOLITES, 1994, Vol 14, January
J.A. Barton
SYNTHESIS Manufacture of dealuminated zeolite Y S.N. Khadzhiev; S.M. Gairbekova; O.V. Kryukov et al. U.S.S.R. 1,682,307, Oct. 7, 1991; Appl. Apr. 11, 1989 The title zeolite, used as a catalyst component, is manufactured by treating the ammonium form of a zeolite Y suspension in NH4OAc solution with NH4 fluorosilicate solution, maintaining the stirred suspension until its pH is stabilized, filtering, washing, and drying the product.
Manufacture of aluminium- and silicon-free molecular sieves, especially ammonium beryllphosphate molecular sieves T.E. Gier
E. /. du Pont de Nemours, and Co. U.S. 5,152,972, Oct 6, 1992; Appl. Aug. 31, 1990 The process comprises forming a mixture of M~xO, AO, T2Os and water (M = alkali metal, alkaline earth metal, or NH4; A = Be, Co, or Zn; T = P, As, or V; x = av. ionic charge of M in the mixture), and crystallising the mixture at a temperature ranging from the f.p. of the mixture fo 90°C to form molecular sieves containing M, A, T, and O. The molecular sieves are useful as ion exchangers.
tized, sintered, contacted with alkali, and treated with a solution of either quaternary ammonium compounds or Ag-, Cu-, Ni-, or Crcontaining compounds to given antimicrobial zeolites. The zeolites are used as filtering materials in water treatment.
Process for incorporating elements in crystalline a l u m o silicates K. Becker; R. Schoedel; P, Kraak et al.
Leuna Werke A.-G. Ger. Often. 4,116,630, Nov. 26, 1992; Appl. May 22, 1991 The process comprises contacting protonated or ion-exchanged thermally pretreated aluminosilicates in alkaline medium, in solid/ liquid ratio 1:(1-100), with dissolved, colloidal, or complex metal compounds having concentration 0.01-1N. Multiple cations can be introduced into the tetrahedrons in this way, and the resulting aluminosilicates are suitable for use as catalysts, catalyst supports, and adsorbents.
Manufacture of zeolite resistant to hot water S. Inoue; S. Kasahara
Tosoh Corp. Jpn. Kokai Tokkyo Koho 92,305,010, Oct. 28, 1992; Appl. Apr. 1, 1991 The zeolite useful as catalyst, adsorbent, etc., is manufactured by crystallising granular amorphous aluminosilicate in an alkali metal hydroxide aqueous solution (e.g., NaOH) and/or alkali metal silicate aqueous solution. The granular amorphous aluminosilicate is prepared by reacting an alkali metal silicate (e.g., Na silicate) aqueous solution with an AI containing compound (AI sulfate) aqueous solution at ~> 70°C.
Manufacture of macrocrystalline zeolites beta M.K. Rubin
Mobil Oil Corp. U.S. 5,164,169; 5,164,170, Nov. 17, 1992; Appls. June 14, 1991 The zeolites, having crystallite size 0.1-3.0 microns, SIO2/AI203 mol ratio 20-200, and which are essentially free of amorphous material, are manufactured by preparing a reaction mixture containing ~> 1 sources of alkali metal cations, Et4N cations, triethanolamine, AI203, SiO2, and water, in mol ratio SIO2/AI203 > 70, OH/SiO2 0.2-0.4, PJSiO2 0.3-0.9, H20/SiO2 5-15, M/SiO2 0.01-0.07, and X/SiO2 0.2-0.8 (R = organic cation; M = alkali metal cation; X = triethanolamine), maintaining the mixture under conditions to crystallize the zeolites beta, and recovering the zeolite containing >~ 1 organic cations and the chelating agent. The zeolites have general formula (360)R20:(0.5-12)M~nO:AI203:(200-1000)SiO2 (R = EtN4 and triethanolamine) and are suitable for use as catalysts.
Manufacture of B-ZSM-5 structural type boralites by hydrothermal synthesis
CATALYSIS Alkylation of aromatic compounds J. Kinoshita; T. Sawa
Asahi Chemical Industry Co., Ltd. Jpn. Kokai Tokkyo Koho, Sept. 9, 1992; Appl. Feb. 6, 1991 Aromatic compounds are alkylated by selective contact with C2-4 olefins in liquid- and/or gas-phase in the presence of Y- and/or X-type zeolites and ~< 10,000 ppm H20.
Process for producing diphenylbutane K. Matano; T. Niwa; H. Ito et al.
Tonen Corp. PCT Int. Appl. 92,09,547, June 11, 1992; JP Appl. Nov. 26, 1990 Diphenylbutanes are prepared in high yields by reaction of C6H6with 1,3-butadiene over Y-type zeolites, L-type zeolite, or SiOz/AI203 catalysts having mol ratio SIO2/AI203 = 0.4-20.
F. Skoda; J. Bauer
Vysoka Skola Chemicko Technologicka Czech 274,790, Nov. 12, 1991; Appl. Jan 18, 1990 The process comprises contacting a B203 source compound (e.g., H3BO3 or borax) in the presence of SiO2 and a Na20-source compound (e.g. NaOH solution), with 7M ethylamine. The mixture has molar ratios SIO2:B203 (4-160):1, SiO2:Na20 (4-90):1, SiO2:ethylamine (0.7-15):1, and H20:SiO2 (17-50):1.
Manufacture of zeolite pellets J. Haruna
Nippon Steel Corp. Jpn. Kokai Tokyo Koho 92,275,916, Oct. 1, 1992: Appl. Mar. 1,
Preparation of p-dichlorobenzene S. Yamaki; K. Shinoda
Kureha Chemical Industry Co., Ltd. Jpn. Kokai Tokkyo Koho 92,253,939, Sept. 9, 1992; Appl. Feb. 5, 1991 The title compound is prepared by chlorination of CsH6 in liquidphase in the presence of zeolite catalysts and ~> 1 of CH2CICH2CI, CHBrCI, and O.
Preparation of 2,6-dimethylnaphthalene K. Sumitani; K. Shimada
Teijin K.K.
1991
Jpn Kokai Tokkyo Koho 92,112,839, Apr. 14, 1992; Appl. Sept. 4,
An AI203-SIO2 source, e.g., kaolinite, and sintering aid are pelle-
1990
74
ZEOLITES, 1994, Vol 14, January