(0)C05B:0/0:

(0)C05B:0/0:

IPC6

SECTION C - CHEMISTRY; METALLURGY

PHOSPHATIC FERTILISERS

C05B

1/1

C 05

FERTILISERS; MANUFACTURE THEREOF (processes or devices for granulating materials, in general B 01 J 2/00; soil-conditioning or soil-stabilising materials C 09 K 17/00) [4]

Notes

(1)

An ingredient in a mixture of fertilisers, or a single fertiliser which contains more than one of the chemical elements on which the subdivision into subclasses is based, is classified only in the first of the appropriate subclasses. Thus, a nitrophosphate or an ammoniated superphosphate is classified in C 05 B but not in C 05 C, magnesium phosphate is classified in C 05 B but not in C 05 D, and calcium cyanamide in C 05 C but not in C 05 D.

(2)

In this class, it is desirable to add the indexing codes relating to ingredients of a mixture of different fertilisers or of fertilisers with non-fertilisers. The indexing codes, which are chosen from the groups in this class, with the exception of groups C 05 B 1/10 and C 05 B 11/02, C 05 C 1/02 and C 05 C 7/02 , C 05 F 1/02, C 05 F 3/06, C 05 F 9/02, C 05 F 11/06 and C 05 F 17/02, have the same numbers as the classification symbols, but a colon is used instead of the oblique stroke, and should be linked.

C 05 B

PHOSPHATIC FERTILISERS

Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly

Superphosphates

Double-superphosphate; Triple-superphosphate Other fertilisers based essentially on monocalcium phosphate

Ammoniation of superphosphates (fertilisers based essentially on ammonium orthophosphate C 05 B 7/00)

Apparatus for the manufacture of superphosphates

Fertilisers based essentially on di-calcium phosphate (C 05 B 11/00 takes precedence)

Thomas phosphate; Other slag phosphates

Fertilisers based essentially on alkali or ammonium orthophosphates (C 05 B 11/00 takes precendence)

Fertilisers based essentially on phosphates or double phosphates of magnesium (C 05 B 11/00 takes precedence)

Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes

using mineral acid

using nitric acid (nitrophosphates)

using sulfuric acid

using orthophosphoric acid

using aqueous hydrochloric acid

using wet gaseous acids

using alkaline lyes

Fertilisers produced by pyrogenic processes from phosphatic materials

from rock phosphates (C 05 B 13/06 takes precedence)

from metallic phosphorus compounds, e.g. ferro-phosphorus

Alkali or alkaline earth meta- or polyphosphate fertilisers

Organic phosphatic fertilisers (bone meal C 05 B 17/00 )

Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal

containing manganese

Granulation or pelletisation of phosphatic fertilisers other than slag (granulating slag C 04 B)

of superphosphates or mixtures containing them

Mixtures of phosphatic fertilisers covered by more than one of the preceding main groups