Shell Oil Comapny

Marinus Johannes Reynhout

Guy Lode Magda Maria Verbist

Henricus P Tomassen

Eit Drent

Carolus Matthias Anna Maria Mesters

Ronald Jan Dogterom

Johannes A Van Broekhoven

Rafael Alberto Garcia Martinez

Jason Trevor O'Brien

Heiko Oosterbeek

Jany Birgitta Maria Antens

Reginald Lambert

Hero Jan Heeres

Albert Van Der Scheer

Silvia Di Benedetto

John Woodruffe

Giambattista Consiglio

Simona Bronco

Robert Martijn Van Hardeveld

Thomas Joris Remans

Gerardus Petrus Lambertus Niesen

Janet A Day

Sunil Ashtekar

Jian Lin

Abderrahmane Chettouf

Ralph Haswell

David Schaddenhorst

Bastiaan Anton Van De Werff

Willem Van Der Horst

Johannes F Braams

Christinus Cornelis Van De Kamp

According to the present invention, there is provided a process for the manufacture of sulphur-containing fertilizer compositions, said process comprising the steps of: a) providing a slurry of at least one phosphate-based fertilizer material selected from the group consisting of ammonium phosphates, ammonium phosphate based nitrogen-phosphorus-potassium (NPK) compounds, super phosphates and partially acidulated phosphate rocks; b} bringing said slurry into contact with at least one surfactant and elemental sulphur; and c) introducing the mixture obtained in step b) into a granulator unit in order to obtain granules of the fertilizer composition, wherein the elemental sulphur is present in an amount in the range of form 1 to 25 wt. %, based on the total weight of the fertilizer composition The present invention also provides a fertilizer composition.

Sulphur-containing fertilizers and process for the preparation thereof

Process for the manufacture of sulphur-containing fertilizer compositions, comprising the steps of: a} providing a slurry of at least one phosphate-based fertilizer material selected from the group consisting of ammonium phosphates, ammonium phosphate based nitrogen-phosphorus-potassium (NPK) compounds, super phosphates and partially acidulated phosphate rocks; b) bringing said slurry into contact with at least one anionic surfactant and elemental sulphur; c) introducing the mixture obtained in step b} into a granulator unit in order to obtain granules of the fertilizer composition, wherein the at least one phosphate-based fertilizer material is present in an amount in the range of at least 50 wt. %, the elemental sulphur is present in an amount in the range of from 1 to 25 wt. % and the anionic surfactant is present in an amount in the range of from 0.001 to 3 wt. % based on the overall weight of the fertilizer composition. The present invention also provides a fertilizer composition.

A method of supporting a hydrocarbon synthesis catalyst material comprising a catalytically active metal and a carrier material on a metallic substrate in which the catalyst material is applied to the substrate and is heated to form a catalyst material layer fixed to the substrate with cracks having sub-millimeter widths formed in the layer creating domains with the range of the relative sizes of the domains being approximately 1:5.

Process for hydrocarbon synthesis

A process for the preparation of a packed bed comprising an iron enriched cobalt catalyst for use in a Fischer-Tropsch reaction, the process comprising the steps of: (a) providing a packed bed with one or more catalyst particles comprising metallic cobalt; (b) contacting a part of the catalyst particle(s) in the packed bed with an iron containing compound. The process is preferably conducted in situ which conveniently results in an iron containing cobalt catalyst with a higher Cselectivity. In certain preferred embodiments the concentration of iron increases towards the surface of the resulting catalyst particles whereas the cobalt concentration is constant which further increases the selectivity of the catalyst to producing Chydrocarbons.

Fischer-Tropsch catalyst

The present invention relates to a process for the conversion of cobalt(II)hydroxide into cobalt(III)oxidehydroxide (CoOOH) by reaction of the cobalt(II)hydroxide with oxygen in the presence of certain metal compounds. The invention further relates to the use of cobalt(III)oxidehydroxide thus prepared in the preparation of catalysts or catalysts precursors, especially catalysts or catalyst precursors for the conversion of synthesis gas into normally liquid and normally solid hydrocarbons and to normally liquid or solid hydrocarbons, optionally after additional hydrotreatment, obtained in such a conversion process.

Catalytic process for the conversion of Co (II)hydroxide in Co (III)oxidehydroxide

A process for the preparation of a catalyst or catalyst precursor, comprising the steps of: (a) admixing: (i) a catalytically active metal or metal compound (ii) a carrier material (iii) a gluing agent; and (iv) optionally one or more promoters, and/or one or more co-catalysts; (b) forming the mixture of step (a); and (c) drying the product of step (b) for more than 5 hours at a temperature up to 100 C to form the catalyst or catalyst precursor. The catalyst material mixture does not need to be calcined after forming to achieve the required minimum strength for use in a suitable reaction, such as Fischer Tropsch.

Process for preparing a hydrocarbon synthesis catalyst

A method of preparing, preferably recycling, a catalyst support material is disclosed and is particularly applicable to recycling a titania support. The invention includes crushing the used catalyst support that is obtained by leaching catalytic components from a used supported catalyst and preferably combining it with new catalyst support in order to provide the required average particle size and ratio of crystal phases. The invention has a number of benefits including making use of used catalyst support materials which have been conventionally disposed of and also providing a method to more efficiently recycle the active component. Where the support is recycled for a similar application, less promoter may be required.

Method of preparing catalyst support from a waste catalyst

A method for the preparation of a catalyst or catalyst precursor comprising: (a) admixing a carrier material, a homogeneous crystalline solid solution of a cobalt compound and one or more d-metal compounds and/or one or more co-catalysts or precursors thereof, and optionally a liquid; (b) forming the mixture of step (a); and (c) optionally drying and/or calcining the product of step (b).

The invention relates to a process for preparing a catalyst. The process allows the delamination of layered crystals which are used as a starting material for a catalyst. The starting material is subsequently converted into an active portion of a catalyst with an increased dispersion resulting in a higher activity. Preferred delaminating agents are di-carboxylic acids and one particular example is citric acid. Preferably at least 0.75 wt %, more preferably at least 1.5 wt % of a delaminating agent is added to the catalyst starting material.

Process for preparing a catalyst

The invention provides a process for preparing a sulphur cement product comprising the following steps: The invention further provides the use of a stream comprising elemental sulphur and particulate oxidation catalyst for preparing a sulphur cement product, which stream is obtained in selective oxidation step (a) of such process.

Process for preparing a sulphur cement product

Solid-state composition having a flexural strength of at least 0.5 N/mm , which composition comprises from solid particles and a hydrocarbonaceous binder containing (i) from 15 to 95% by weight, based on total binder, of asphaltenes, which asphaltenes contain at least 60% aromatic carbon, and (ii) from 5 to 85% by weight, based on total binder, of further hydrocarbons, with the proviso that the solid particles are not solely carbon particles; process for preparing such composition, use of such composition in construction, construction element containing such composition and construction containing such construction elements.

Solid-state composition comprising solid particles and binder

A process for preparing products containing mineral particles and asphaltenes-containing binder, said process involves (a) preparing a fluid mixture of mineral particles and asphaltenes-containing binder by mixing (i) solid particles containing from 10 to 95% by weight of asphaltenes-containing binder having a penetration of less than 15 dmm and from 90 to 5% by weight of small particles having an average particle size of less than 5 millimeter, with (ii) hot mineral particles having a temperature from 100 to 300&deg; C., and (b) use of the fluid mixture for preparing products containing mineral particles and asphaltenes-containing binder.

Process for preparing products containing mineral particles and asphaltenes-containing binder

The present invention provides a copolymer of at least one n-(C.sub.8 -C.sub.30 -alkyl) (meth)acrylate with maleic anhydride, which contains alternating (meth)acrylate and maleic anhydride monomeric units, characterized in that the copolymer has a degree of alternation of at least 85%, a process for preparing the copolymer, a hydrocarbon oil composition containing the copolymer and the use of the copolymer as a flow improver additive.

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Amsterdam, Netherlands

Marinus Johannes Reynhout