The article introduces production research,pilot plant operation and manufacture process of coke breeze briquettes made from cheap coke breeze and composite binder,which replace lump coke used in gas generating furnace.

National Bureau of Industrial Research During the Period of the Repubilc of China;

Numerical simulation and industrial test of boreholes destressing technology in deep coal tunnel;

First industrial test of metallocene adduct technology;

The industrial test on continuous smeltin of compact zinc slag using fuming furnace without heat source is described,the feasibility and economy of all cold charging for continuous smelting of compact zinc slag are discussed.

To reduce blending cost and consume more gas coal and gas-fat coal produced from Shandong province,and thereby to increase the production of BF gas,ease the shortage of coke oven gas,Jinan Iron and Steel Company carried out an industrial experiment on Feb.

Through making industrial experiment of zinc nitrate with existing equipments,the industrial experiments of calcium ammonium nitrate and nitro-composite fertilizer show that the production of a calcium ammonium nitrate and nitro-composite fertilizer exist many problems,and so it is need to improve the process and increase equipments.

This paper describes the industrial experiment of regenerative removal agent to remove lead.

The commercial experiment of using organic binder contained typ- modified bentonite to replace common calcium bentonite were conducted in 8m2 shaft furnace,Xuan Hua I&S Company.

Because of the raw material conditions were changed,in order to find the new material and to decrease the sinter cost,a plant test of sintering proportioning with the boron-magnesite concentrates was conducted in BENGANG ironmaking plant and the important results were obtained.

The plant test of spraying CaCl 2 solution onto finished sinter was conducted in MEIGANG sintering plant,the result shows that the sinter′s RDI can be improved obviously and the satisfactory benefit could be obtained from the molten iron increasing and the coke savsing by spraying CaCl 2.

Two times of plant test to produce self- fluxed pellets by grate-kiln-cooler process were carried out in SOUGANG pelleizing plant and the reasonable process parameters have been found out.