摘要:
Re-moisturised, surface-crosslinked superabsorbents are produced using a process that comprises the steps of contacting a superabsorbent base polymer with an organic crosslinker and a polyvalent metal salt solution in the presence of an alcohol, heat-treating to produce a surface-crosslinked, dry superabsorbent and re-moisturising the surface-crosslinked dry superabsorbent.
摘要:
A process for preparing water-absorbing polymer particles by coating water-absorbing polymer particles with a particulate solid in a mixer, wherein the particulate solid is dispersed by means of a gas stream and the supply of the dispersed particulate solid in the mixer ends below the product bed surface.
摘要:
A process for preparing water-absorbing polymer particles by coating water-absorbing polymer particles with a particulate solid in a mixer, wherein the particulate solid is dispersed by means of a gas stream and the supply of the dispersed particulate solid in the mixer ends below the product bed surface.
摘要:
A process for preparing water-absorbing polymer particles by spraying a liquid onto water-absorbing polymer particles by means of at least one thermally insulated and/or trace-heated spray nozzle in a mixer.
摘要:
A process for preparing water-absorbing polymer particles by spraying a liquid below the product bed surface by means of at least one spray nozzle in a mixer with moving mixing tools.
摘要:
A process for preparing water-absorbing polymer particles by spraying a liquid below the product bed surface by means of at least one spray nozzle in a mixer with moving mixing tools.
摘要:
A process for preparing water-absorbing polymer particles by spraying a liquid onto water-absorbing polymer particles by means of at least one thermally insulated and/or trace-heated spray nozzle in a mixer.
摘要:
The present invention relates to a process for the preparation of fertilizer granules. The process is particularly suitable for the preparation of finely divided fertilizer granules. Furthermore, the invention relates to the granulated fertilizers obtainable by this process, and to their use for fertilizing agricultural and/or horticultural crops.
摘要:
A coating process wherein an aqueous liquid is sprayed onto surface postcrosslinked water-absorbing polymer particles in a horizontal mixer and the inner wall of the horizontal mixer which is in contact with the product is made from a stainless steel.
摘要:
The present invention relates to coated or liquid preparations comprising at least one hydroformate of the general formula (I) M3[HCOO]3.HCOOH (I) where M=Na, K, Cs, NH4, and the use thereof.